From 14f0fb44f8420d816367ff142ddee8acf51173cd Mon Sep 17 00:00:00 2001 From: gdisirio Date: Mon, 29 Mar 2010 18:57:52 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1803 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/ports/GCC/ARMCMx/LPC11xx/cmparams.h | 81 ++ os/ports/GCC/ARMCMx/LPC11xx/port.mk | 10 + os/ports/GCC/ARMCMx/LPC11xx/vectors.s | 212 ++++ os/ports/GCC/ARMCMx/chcore.c | 158 +++ os/ports/GCC/ARMCMx/chcore.h | 323 ++++++ os/ports/GCC/ARMCMx/chtypes.h | 57 + os/ports/GCC/ARMCMx/cmsis/core_cm0.c | 455 ++++++++ os/ports/GCC/ARMCMx/cmsis/core_cm0.h | 984 +++++++++++++++++ os/ports/GCC/ARMCMx/cmsis/core_cm3.c | 784 ++++++++++++++ os/ports/GCC/ARMCMx/cmsis/core_cm3.h | 1842 ++++++++++++++++++++++++++++++++ os/ports/GCC/ARMCMx/crt0.s | 161 +++ os/ports/GCC/ARMCMx/nvic.c | 73 ++ os/ports/GCC/ARMCMx/nvic.h | 191 ++++ os/ports/GCC/ARMCMx/port.dox | 170 +++ 14 files changed, 5501 insertions(+) create mode 100644 os/ports/GCC/ARMCMx/LPC11xx/cmparams.h create mode 100644 os/ports/GCC/ARMCMx/LPC11xx/port.mk create mode 100644 os/ports/GCC/ARMCMx/LPC11xx/vectors.s create mode 100644 os/ports/GCC/ARMCMx/chcore.c create mode 100644 os/ports/GCC/ARMCMx/chcore.h create mode 100644 os/ports/GCC/ARMCMx/chtypes.h create mode 100644 os/ports/GCC/ARMCMx/cmsis/core_cm0.c create mode 100644 os/ports/GCC/ARMCMx/cmsis/core_cm0.h create mode 100644 os/ports/GCC/ARMCMx/cmsis/core_cm3.c create mode 100644 os/ports/GCC/ARMCMx/cmsis/core_cm3.h create mode 100644 os/ports/GCC/ARMCMx/crt0.s create mode 100644 os/ports/GCC/ARMCMx/nvic.c create mode 100644 os/ports/GCC/ARMCMx/nvic.h create mode 100644 os/ports/GCC/ARMCMx/port.dox (limited to 'os/ports/GCC/ARMCMx') diff --git a/os/ports/GCC/ARMCMx/LPC11xx/cmparams.h b/os/ports/GCC/ARMCMx/LPC11xx/cmparams.h new file mode 100644 index 000000000..0b55670d3 --- /dev/null +++ b/os/ports/GCC/ARMCMx/LPC11xx/cmparams.h @@ -0,0 +1,81 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/LPC111x/cmparams.h + * @brief ARM Cortex-M0 LPC111x specific parameters. + * + * @defgroup ARMCMx_LPC111x LPC111x specific parameters + * @ingroup ARMCMx + * @details This file contains the Cortex-M0 specific parameters for the + * LPC111x platform. + * @{ + */ + +#ifndef _CMPARAMS_H_ +#define _CMPARAMS_H_ + +/*===========================================================================*/ +/* Constants parameters. */ +/*===========================================================================*/ + +#define CORTEX_M0 0 /**< @brief Cortex-M0 variant. */ +#define CORTEX_M3 3 /**< @brief Cortex-M3 variant. */ + +/** + * @brief Cortex core model. + */ +#define CORTEX_MODEL CORTEX_M0 + +/** + * @brief Systick unit presence. + */ +#define CORTEX_HAS_ST TRUE + +/** + * @brief Memory Protection unit presence. + */ +#define CORTEX_HAS_MPU FALSE + +/** + * @brief Number of bits in priority masks. + * @details The available number of priority levels is equal to + * (1 << @p CORTEX_PRIORITY_BITS). + */ +#define CORTEX_PRIORITY_BITS 2 + +/** + * @brief Priority to priority mask conversion macro. + */ +#define CORTEX_PRIORITY(n) ((n) << (8 - CORTEX_PRIORITY_BITS)) + +/*===========================================================================*/ +/* Configurable parameters. */ +/*===========================================================================*/ + +/** + * @brief SYSTICK handler priority. + */ +#ifndef CORTEX_PRIORITY_SYSTICK +#define CORTEX_PRIORITY_SYSTICK CORTEX_PRIORITY(2) +#endif + +#endif /* _CMPARAMS_H_ */ + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/LPC11xx/port.mk b/os/ports/GCC/ARMCMx/LPC11xx/port.mk new file mode 100644 index 000000000..0d82384fb --- /dev/null +++ b/os/ports/GCC/ARMCMx/LPC11xx/port.mk @@ -0,0 +1,10 @@ +# List of the ChibiOS/RT Cortex-M0 LPC11xx port files. +PORTSRC = ${CHIBIOS}/os/ports/GCC/ARMCMx/chcore.c \ + ${CHIBIOS}/os/ports/GCC/ARMCMx/nvic.c +# ${CHIBIOS}/os/ports/GCC/ARMCMx/cmsis/core_cm0.c + +PORTASM = ${CHIBIOS}/os/ports/GCC/ARMCMx/crt0.s + +PORTINC = ${CHIBIOS}/os/ports/GCC/ARMCMx \ + ${CHIBIOS}/os/ports/GCC/ARMCMx/LPC11xx \ + ${CHIBIOS}/os/ports/GCC/ARMCMx/cmsis diff --git a/os/ports/GCC/ARMCMx/LPC11xx/vectors.s b/os/ports/GCC/ARMCMx/LPC11xx/vectors.s new file mode 100644 index 000000000..44ea654ce --- /dev/null +++ b/os/ports/GCC/ARMCMx/LPC11xx/vectors.s @@ -0,0 +1,212 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +.syntax unified +.thumb + +.section vectors +_vectors: + .word __ram_end__ + .word ResetHandler + .word NMIVector + .word HardFaultVector + .word MemManageVector + .word BusFaultVector + .word UsageFaultVector + .word Vector1C + .word Vector20 + .word Vector24 + .word Vector28 + .word SVCallVector + .word DebugMonitorVector + .word Vector34 + .word PendSVVector + .word SysTickVector + .word Vector40 + .word Vector44 + .word Vector48 + .word Vector4C + .word Vector50 + .word Vector54 + .word Vector58 + .word Vector5C + .word Vector60 + .word Vector64 + .word Vector68 + .word Vector6C + .word Vector70 + .word Vector74 + .word Vector78 + .word Vector7C + .word Vector80 + .word Vector84 + .word Vector88 + .word Vector8C + .word Vector90 + .word Vector94 + .word Vector98 + .word Vector9C + .word VectorA0 + .word VectorA4 + .word VectorA8 + .word VectorAC + .word VectorB0 + .word VectorB4 + .word VectorB8 + .word VectorBC + +.weak NMIVector +NMIVector: + +.weak HardFaultVector +HardFaultVector: + +.weak MemManageVector +MemManageVector: + +.weak BusFaultVector +BusFaultVector: + +.weak UsageFaultVector +UsageFaultVector: + +.weak Vector1C +Vector1C: + +.weak Vector20 +Vector20: + +.weak Vector24 +Vector24: + +.weak Vector28 +Vector28: + +.weak SVCallVector +SVCallVector: + +.weak DebugMonitorVector +DebugMonitorVector: + +.weak Vector34 +Vector34: + +.weak PendSVVector +PendSVVector: + +.weak SysTickVector +SysTickVector: + +.weak Vector40 +Vector40: + +.weak Vector44 +Vector44: + +.weak Vector48 +Vector48: + +.weak Vector4C +Vector4C: + +.weak Vector50 +Vector50: + +.weak Vector54 +Vector54: + +.weak Vector58 +Vector58: + +.weak Vector5C +Vector5C: + +.weak Vector60 +Vector60: + +.weak Vector64 +Vector64: + +.weak Vector68 +Vector68: + +.weak Vector6C +Vector6C: + +.weak Vector70 +Vector70: + +.weak Vector74 +Vector74: + +.weak Vector78 +Vector78: + +.weak Vector7C +Vector7C: + +.weak Vector80 +Vector80: + +.weak Vector84 +Vector84: + +.weak Vector88 +Vector88: + +.weak Vector8C +Vector8C: + +.weak Vector90 +Vector90: + +.weak Vector94 +Vector94: + +.weak Vector98 +Vector98: + +.weak Vector9C +Vector9C: + +.weak VectorA0 +VectorA0: + +.weak VectorA4 +VectorA4: + +.weak VectorA8 +VectorA8: + +.weak VectorAC +VectorAC: + +.weak VectorB0 +VectorB0: + +.weak VectorB4 +VectorB4: + +.weak VectorB8 +VectorB8: + +.weak VectorBC +VectorBC: + +here: b here diff --git a/os/ports/GCC/ARMCMx/chcore.c b/os/ports/GCC/ARMCMx/chcore.c new file mode 100644 index 000000000..9ed51d97e --- /dev/null +++ b/os/ports/GCC/ARMCMx/chcore.c @@ -0,0 +1,158 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/chcore.c + * @brief ARM Cortex-Mx architecture port code. + * + * @addtogroup ARMCMx_CORE + * @{ + */ + +#include "ch.h" +#include "nvic.h" + +/** + * @brief PC register temporary storage. + */ +regarm_t _port_saved_pc; + +/** + * @brief Halts the system. + * @note The function is declared as a weak symbol, it is possible + * to redefine it in your application code. + */ +#if !defined(__DOXYGEN__) +__attribute__((weak)) +#endif +void port_halt(void) { + + port_disable(); + while (TRUE) { + } +} + +/** + * @brief System Timer vector. + * @details This interrupt is used as system tick. + * @note The timer must be initialized in the startup code. + */ +CH_IRQ_HANDLER(SysTickVector) { + + CH_IRQ_PROLOGUE(); + + chSysLockFromIsr(); + chSysTimerHandlerI(); + chSysUnlockFromIsr(); + + CH_IRQ_EPILOGUE(); +} + +/** + * @brief Post-IRQ switch code. + * @details On entry the stack and the registers are restored by the exception + * return, the PC value is stored in @p _port_saved_pc, the interrupts + * are disabled. + */ +#if !defined(__DOXYGEN__) +__attribute__((naked)) +#endif +void _port_switch_from_irq(void) { + /* Note, saves r4 to make space for the PC.*/ + asm volatile ("push {r0, r1, r2, r3, r4} \n\t" \ + "mov r0, r12 \n\t" \ + "mrs r1, XPSR \n\t" \ + "push {r0, r1, lr} \n\t" \ + "ldr r0, =_port_saved_pc \n\t" \ + "str r0, [sp, #28]"); + + chSchDoRescheduleI(); + + /* Note, the PC is restored alone after re-enabling the interrupts in + order to minimize the (very remote and unlikely) possibility that + the stack is filled by continous and saturating interrups that would + not allow that last word to be pulled out of the stack.*/ + asm volatile ("pop {r0, r1, r2} \n\t" \ + "mov r12, r0 \n\t" \ + "msr XPSR, r1 \n\t" \ + "mov lr, r2 \n\t" \ + "pop {r0, r1, r2, r3} \n\t" \ + "cpsie i \n\t" \ + "pop {pc}"); +} + +#if CORTEX_MODEL == CORTEX_M0 +#define PUSH_CONTEXT(sp) { \ + asm volatile ("push {r4, r5, r6, r7, lr} \n\t" \ + "mov r4, r8 \n\t" \ + "mov r5, r9 \n\t" \ + "mov r6, r10 \n\t" \ + "mov r7, r11 \n\t" \ + "push {r4, r5, r6, r7}"); \ +} + +#define POP_CONTEXT(sp) { \ + asm volatile ("pop {r4, r5, r6, r7} \n\t" \ + "mov r8, r4 \n\t" \ + "mov r9, r5 \n\t" \ + "mov r10, r6 \n\t" \ + "mov r11, r7 \n\t" \ + "pop {r4, r5, r6, r7, pc}" : : "r" (sp)); \ +} +#else /* CORTEX_MODEL != CORTEX_M0 */ +#endif /* CORTEX_MODEL != CORTEX_M0 */ + +/** + * @brief Performs a context switch between two threads. + * @details This is the most critical code in any port, this function + * is responsible for the context switch between 2 threads. + * @note The implementation of this code affects directly the context + * switch performance so optimize here as much as you can. + * + * @param[in] ntp the thread to be switched in + * @param[in] otp the thread to be switched out + */ +#if !defined(__DOXYGEN__) +__attribute__((naked)) +#endif +void port_switch(Thread *ntp, Thread *otp) { + register struct intctx *sp_thd asm ("sp"); + + PUSH_CONTEXT(sp_thd); + + otp->p_ctx.r13 = sp_thd; + sp_thd = ntp->p_ctx.r13; + + POP_CONTEXT(sp_thd); +} + +/** + * @brief Start a thread by invoking its work function. + * @details If the work function returns @p chThdExit() is automatically + * invoked. + */ +void _port_thread_start(void) { + + asm volatile ("cpsie i \n\t" \ + "mov r0, r5 \n\t" \ + "blx r4 \n\t" \ + "bl chThdExit"); +} + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/chcore.h b/os/ports/GCC/ARMCMx/chcore.h new file mode 100644 index 000000000..4ee55dc4a --- /dev/null +++ b/os/ports/GCC/ARMCMx/chcore.h @@ -0,0 +1,323 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/chcore.h + * @brief ARM Cortex-Mx architecture port macros and structures. + * + * @addtogroup ARMCMx_CORE + * @{ + */ + +#ifndef _CHCORE_H_ +#define _CHCORE_H_ + +/* + * Port-related configuration parameters. + */ + +/** + * @brief Enables the use of the WFI ins. + */ +#ifndef ENABLE_WFI_IDLE +#define ENABLE_WFI_IDLE 0 +#endif + +/** + * @brief Name of the implemented architecture. + */ +#define CH_ARCHITECTURE_NAME "ARM" + +/* Inclusion of the Cortex-Mx implementation specific parameters.*/ +#include "cmparams.h" + +/* Generating model-dependent info.*/ +#if (CORTEX_MODEL == CORTEX_M3) || defined(__DOXYGEN__) +/** + * @brief Macro defining the ARM Cortex-M3 architecture. + */ +#define CH_ARCHITECTURE_ARMCM3 + +/** + * @brief Name of the architecture variant (optional). + */ +#define CH_CORE_VARIANT_NAME "Cortex-M3" +#elif CORTEX_MODEL == CORTEX_M0 +#define CH_ARCHITECTURE_ARMCM0 +#define CH_CORE_VARIANT_NAME "Cortex-M0" +#else +#error "unknown or unsupported Cortex-M model" +#endif + +/** + * @brief 32 bits stack and memory alignment enforcement. + */ +typedef uint32_t stkalign_t; + +/** + * @brief Generic ARM register. + */ +typedef void *regarm_t; + +/** + * @brief Cortex-Mx exception context. + */ +struct cmxctx { + regarm_t r0; + regarm_t r1; + regarm_t r2; + regarm_t r3; + regarm_t r12; + regarm_t lr_thd; + regarm_t pc; + regarm_t xpsr; +}; + +#if !defined(__DOXYGEN__) +/** + * @brief Interrupt saved context. + * @details This structure represents the stack frame saved during a + * preemption-capable interrupt handler. + */ +struct extctx { + regarm_t r12; + regarm_t xpsr; + regarm_t lr; + regarm_t r0; + regarm_t r1; + regarm_t r2; + regarm_t r3; + regarm_t pc; +}; +#endif + +#if !defined(__DOXYGEN__) +/** + * @brief System saved context. + * @details This structure represents the inner stack frame during a context + * switching. + */ +struct intctx { + regarm_t r8; + regarm_t r9; + regarm_t r10; + regarm_t r11; + regarm_t r4; + regarm_t r5; + regarm_t r6; + regarm_t r7; + regarm_t lr; +}; +#endif + +#if !defined(__DOXYGEN__) +/** + * @brief Platform dependent part of the @p Thread structure. + * @details In the Cortex-Mx port this structure just holds a pointer to the + * @p intctx structure representing the stack pointer at the time + * of the context switch. + */ +struct context { + struct intctx *r13; +}; +#endif + +/** + * @brief Platform dependent part of the @p chThdInit() API. + * @details This code usually setup the context switching frame represented + * by an @p intctx structure. + */ +#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \ + tp->p_ctx.r13 = (struct intctx *)((uint8_t *)workspace + \ + wsize - \ + sizeof(struct intctx)); \ + tp->p_ctx.r13->r4 = pf; \ + tp->p_ctx.r13->r5 = arg; \ + tp->p_ctx.r13->lr = _port_thread_start; \ +} + +/** + * @brief Stack size for the system idle thread. + * @details This size depends on the idle thread implementation, usually + * the idle thread should take no more space than those reserved + * by @p INT_REQUIRED_STACK. + * @note In this port it is set to 4 because the idle thread does have + * a stack frame when compiling without optimizations. + */ +#ifndef IDLE_THREAD_STACK_SIZE +#define IDLE_THREAD_STACK_SIZE 4 +#endif + +/** + * @brief Per-thread stack overhead for interrupts servicing. + * @details This constant is used in the calculation of the correct working + * area size. + * This value can be zero on those architecture where there is a + * separate interrupt stack and the stack space between @p intctx and + * @p extctx is known to be zero. + * @note This port requires no extra stack space for interrupt handling. + */ +#ifndef INT_REQUIRED_STACK +#define INT_REQUIRED_STACK 0 +#endif + +/** + * @brief Enforces a correct alignment for a stack area size value. + */ +#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1) + +/** + * @brief Computes the thread working area global size. + */ +#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \ + sizeof(struct intctx) + \ + sizeof(struct extctx) + \ + (n) + (INT_REQUIRED_STACK)) + +/** + * @brief Static working area allocation. + * @details This macro is used to allocate a static thread working area + * aligned as both position and size. + */ +#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)]; + +/** + * @brief IRQ prologue code. + * @details This macro must be inserted at the start of all IRQ handlers + * enabled to invoke system APIs. + */ +#define PORT_IRQ_PROLOGUE() + +/** + * @brief IRQ epilogue code. + * @details This macro must be inserted at the end of all IRQ handlers + * enabled to invoke system APIs. + */ +#define PORT_IRQ_EPILOGUE() { \ + chSysLockFromIsr(); \ + if (((SCB_ICSR & ICSR_RETTOBASE) != 0) && chSchIsRescRequiredExI()) { \ + register struct cmxctx *ctxp asm ("r3"); \ + \ + asm volatile ("mrs %0, PSP" : "=r" (ctxp) : "r" (ctxp)); \ + _port_saved_pc = ctxp->pc; \ + ctxp->pc = _port_switch_from_irq; \ + return; \ + } \ + chSysUnlockFromIsr(); \ +} + +/** + * @brief IRQ handler function declaration. + * @note @p id can be a function name or a vector number depending on the + * port implementation. + */ +#define PORT_IRQ_HANDLER(id) void id(void) + +/** + * @brief Port-related initialization code. + * @note This function is empty in this port. + */ +#define port_init() + +/** + * @brief Kernel-lock action. + * @details Usually this function just disables interrupts but may perform + * more actions. + * @note In this port it disables all the interrupt sources. + */ +#define port_lock() asm volatile ("cpsid i") + +/** + * @brief Kernel-unlock action. + * @details Usually this function just disables interrupts but may perform + * more actions. + * @note In this port it enables all the interrupt sources. + */ +#define port_unlock() asm volatile ("cpsie i") + +/** + * @brief Kernel-lock action from an interrupt handler. + * @details This function is invoked before invoking I-class APIs from + * interrupt handlers. The implementation is architecture dependent, + * in its simplest form it is void. + * @note Same as @p port_lock() in this port. + */ +#define port_lock_from_isr() port_lock() + +/** + * @brief Kernel-unlock action from an interrupt handler. + * @details This function is invoked after invoking I-class APIs from interrupt + * handlers. The implementation is architecture dependent, in its + * simplest form it is void. + * @note Same as @p port_unlock() in this port. + */ +#define port_unlock_from_isr() port_unlock() + +/** + * @brief Disables all the interrupt sources. + * @note Of course non maskable interrupt sources are not included. + * @note In this port it disables all the interrupt sources. + */ +#define port_disable() asm volatile ("cpsid i") + +/** + * @brief Disables the interrupt sources below kernel-level priority. + * @note Interrupt sources above kernel level remains enabled. + * @note In this port it disables all the interrupt sources. + */ +#define port_suspend() asm volatile ("cpsid i") + +/** + * @brief Enables all the interrupt sources. + * @note In this port it enables all the interrupt sources. + */ +#define port_enable() asm volatile ("cpsie i") + +/** + * @brief Enters an architecture-dependent IRQ-waiting mode. + * @details The function is meant to return when an interrupt becomes pending. + * The simplest implementation is an empty function or macro but this + * would not take advantage of architecture-specific power saving + * modes. + * @note Implemented as an inlined @p WFI instruction. + */ +#if ENABLE_WFI_IDLE || defined(__DOXYGEN__) +#define port_wait_for_interrupt() asm volatile ("wfi") +#else +#define port_wait_for_interrupt() +#endif + +#if !defined(__DOXYGEN__) +extern regarm_t _port_saved_pc; +#endif + +#ifdef __cplusplus +extern "C" { +#endif + void port_halt(void); + void port_switch(Thread *ntp, Thread *otp); + void _port_switch_from_irq(void); + void _port_thread_start(void); +#ifdef __cplusplus +} +#endif + +#endif /* _CHCORE_H_ */ + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/chtypes.h b/os/ports/GCC/ARMCMx/chtypes.h new file mode 100644 index 000000000..be89b04bf --- /dev/null +++ b/os/ports/GCC/ARMCMx/chtypes.h @@ -0,0 +1,57 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/chtypes.h + * @brief ARM Cortex-M3 architecture port system types. + * @addtogroup ARMCMx_CORE + * @{ + */ + +#ifndef _CHTYPES_H_ +#define _CHTYPES_H_ + +#define __need_NULL +#define __need_size_t +#define __need_ptrdiff_t +#include + +#if !defined(_STDINT_H) && !defined(__STDINT_H_) +#include +#endif + +typedef int32_t bool_t; /**< Fast boolean type. */ +typedef uint8_t tmode_t; /**< Thread flags. */ +typedef uint8_t tstate_t; /**< Thread state. */ +typedef uint8_t trefs_t; /**< Thread references counter. */ +typedef uint32_t tprio_t; /**< Thread priority. */ +typedef int32_t msg_t; /**< Inter-thread message. */ +typedef int32_t eventid_t; /**< Event Id. */ +typedef uint32_t eventmask_t; /**< Events mask. */ +typedef uint32_t systime_t; /**< System time. */ +typedef int32_t cnt_t; /**< Resources counter. */ + +#define INLINE inline +#define PACK_STRUCT_STRUCT __attribute__((packed)) +#define PACK_STRUCT_BEGIN +#define PACK_STRUCT_END + +#endif /* _CHTYPES_H_ */ + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/cmsis/core_cm0.c b/os/ports/GCC/ARMCMx/cmsis/core_cm0.c new file mode 100644 index 000000000..c08a7b6c6 --- /dev/null +++ b/os/ports/GCC/ARMCMx/cmsis/core_cm0.c @@ -0,0 +1,455 @@ +/**************************************************************************//** + * @file core_cm0.c + * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Source File + * @version V1.30 + * @date 30. October 2009 + * + * @note + * Copyright (C) 2009 ARM Limited. All rights reserved. + * + * @par + * ARM Limited (ARM) is supplying this software for use with Cortex-M + * processor based microcontrollers. This file can be freely distributed + * within development tools that are supporting such ARM based processors. + * + * @par + * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED + * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. + * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. + * + ******************************************************************************/ + +#include + +/* define compiler specific symbols */ +#if defined ( __CC_ARM ) + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + +#elif defined ( __ICCARM__ ) + #define __ASM __asm /*!< asm keyword for IAR Compiler */ + #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for GNU Compiler */ + #define __INLINE inline /*!< inline keyword for GNU Compiler */ + +#elif defined ( __TASKING__ ) + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + +#endif + + +/* ################### Compiler specific Intrinsics ########################### */ + +#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ +/* ARM armcc specific functions */ + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +__ASM uint32_t __get_PSP(void) +{ + mrs r0, psp + bx lr +} + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +__ASM void __set_PSP(uint32_t topOfProcStack) +{ + msr psp, r0 + bx lr +} + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +__ASM uint32_t __get_MSP(void) +{ + mrs r0, msp + bx lr +} + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +__ASM void __set_MSP(uint32_t mainStackPointer) +{ + msr msp, r0 + bx lr +} + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +__ASM uint32_t __REV16(uint16_t value) +{ + rev16 r0, r0 + bx lr +} + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +__ASM int32_t __REVSH(int16_t value) +{ + revsh r0, r0 + bx lr +} + + +#if (__ARMCC_VERSION < 400000) + + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +__ASM uint32_t __get_PRIMASK(void) +{ + mrs r0, primask + bx lr +} + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +__ASM void __set_PRIMASK(uint32_t priMask) +{ + msr primask, r0 + bx lr +} + +/** + * @brief Return the Control Register value + * + * @return Control value + * + * Return the content of the control register + */ +__ASM uint32_t __get_CONTROL(void) +{ + mrs r0, control + bx lr +} + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +__ASM void __set_CONTROL(uint32_t control) +{ + msr control, r0 + bx lr +} + +#endif /* __ARMCC_VERSION */ + + + +#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ +/* IAR iccarm specific functions */ +#pragma diag_suppress=Pe940 + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +uint32_t __get_PSP(void) +{ + __ASM("mrs r0, psp"); + __ASM("bx lr"); +} + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +void __set_PSP(uint32_t topOfProcStack) +{ + __ASM("msr psp, r0"); + __ASM("bx lr"); +} + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +uint32_t __get_MSP(void) +{ + __ASM("mrs r0, msp"); + __ASM("bx lr"); +} + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +void __set_MSP(uint32_t topOfMainStack) +{ + __ASM("msr msp, r0"); + __ASM("bx lr"); +} + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +uint32_t __REV16(uint16_t value) +{ + __ASM("rev16 r0, r0"); + __ASM("bx lr"); +} + + +#pragma diag_default=Pe940 + + +#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ +/* GNU gcc specific functions */ + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +uint32_t __get_PSP(void) __attribute__( ( naked ) ); +uint32_t __get_PSP(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, psp\n\t" + "MOV r0, %0 \n\t" + "BX lr \n\t" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +void __set_PSP(uint32_t topOfProcStack) __attribute__( ( naked ) ); +void __set_PSP(uint32_t topOfProcStack) +{ + __ASM volatile ("MSR psp, %0\n\t" + "BX lr \n\t" : : "r" (topOfProcStack) ); +} + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +uint32_t __get_MSP(void) __attribute__( ( naked ) ); +uint32_t __get_MSP(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, msp\n\t" + "MOV r0, %0 \n\t" + "BX lr \n\t" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +void __set_MSP(uint32_t topOfMainStack) __attribute__( ( naked ) ); +void __set_MSP(uint32_t topOfMainStack) +{ + __ASM volatile ("MSR msp, %0\n\t" + "BX lr \n\t" : : "r" (topOfMainStack) ); +} + + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +uint32_t __get_PRIMASK(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, primask" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +void __set_PRIMASK(uint32_t priMask) +{ + __ASM volatile ("MSR primask, %0" : : "r" (priMask) ); +} + +/** + * @brief Return the Control Register value +* +* @return Control value + * + * Return the content of the control register + */ +uint32_t __get_CONTROL(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, control" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +void __set_CONTROL(uint32_t control) +{ + __ASM volatile ("MSR control, %0" : : "r" (control) ); +} + + +/** + * @brief Reverse byte order in integer value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in integer value + */ +uint32_t __REV(uint32_t value) +{ + uint32_t result=0; + + __ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +uint32_t __REV16(uint16_t value) +{ + uint32_t result=0; + + __ASM volatile ("rev16 %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +int32_t __REVSH(int16_t value) +{ + uint32_t result=0; + + __ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + + +#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/ +/* TASKING carm specific functions */ + +/* + * The CMSIS functions have been implemented as intrinsics in the compiler. + * Please use "carm -?i" to get an up to date list of all instrinsics, + * Including the CMSIS ones. + */ + +#endif diff --git a/os/ports/GCC/ARMCMx/cmsis/core_cm0.h b/os/ports/GCC/ARMCMx/cmsis/core_cm0.h new file mode 100644 index 000000000..af27881d4 --- /dev/null +++ b/os/ports/GCC/ARMCMx/cmsis/core_cm0.h @@ -0,0 +1,984 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/* + * Parts of this files have been modified in ChibiOS/RT in order to fix + * some code quality issues. + */ + +/**************************************************************************//** + * @file core_cm0.h + * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File + * @version V1.30 + * @date 30. October 2009 + * + * @note + * Copyright (C) 2009 ARM Limited. All rights reserved. + * + * @par + * ARM Limited (ARM) is supplying this software for use with Cortex-M + * processor based microcontrollers. This file can be freely distributed + * within development tools that are supporting such ARM based processors. + * + * @par + * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED + * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. + * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. + * + ******************************************************************************/ + +#ifndef __CM0_CORE_H__ +#define __CM0_CORE_H__ + +/** @addtogroup CMSIS_CM0_core_LintCinfiguration CMSIS CM0 Core Lint Configuration + * + * List of Lint messages which will be suppressed and not shown: + * - not yet checked + * . + * Note: To re-enable a Message, insert a space before 'lint' * + * + */ + + +/** @addtogroup CMSIS_CM0_core_definitions CM0 Core Definitions + This file defines all structures and symbols for CMSIS core: + - CMSIS version number + - Cortex-M core registers and bitfields + - Cortex-M core peripheral base address + @{ + */ + +#ifdef __cplusplus + extern "C" { +#endif + +#define __CM0_CMSIS_VERSION_MAIN (0x01) /*!< [31:16] CMSIS HAL main version */ +#define __CM0_CMSIS_VERSION_SUB (0x30) /*!< [15:0] CMSIS HAL sub version */ +#define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | __CM0_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */ + +#define __CORTEX_M (0x00) /*!< Cortex core */ + +#include /* Include standard types */ + +#if defined (__ICCARM__) + #include /* IAR Intrinsics */ +#endif + + +#ifndef __NVIC_PRIO_BITS + #define __NVIC_PRIO_BITS 2 /*!< standard definition for NVIC Priority Bits */ +#endif + + + + +/** + * IO definitions + * + * define access restrictions to peripheral registers + */ + +#ifdef __cplusplus + #define __I volatile /*!< defines 'read only' permissions */ +#else + #define __I volatile const /*!< defines 'read only' permissions */ +#endif +#define __O volatile /*!< defines 'write only' permissions */ +#define __IO volatile /*!< defines 'read / write' permissions */ + + + +/******************************************************************************* + * Register Abstraction + ******************************************************************************/ +/** @addtogroup CMSIS_CM0_core_register CMSIS CM0 Core Register + @{ +*/ + + +/** @addtogroup CMSIS_CM0_NVIC CMSIS CM0 NVIC + memory mapped structure for Nested Vectored Interrupt Controller (NVIC) + @{ + */ +typedef struct +{ + __IO uint32_t ISER[1]; /*!< (Offset: 0x000) Interrupt Set Enable Register */ + uint32_t RESERVED0[31]; + __IO uint32_t ICER[1]; /*!< (Offset: 0x080) Interrupt Clear Enable Register */ + uint32_t RSERVED1[31]; + __IO uint32_t ISPR[1]; /*!< (Offset: 0x100) Interrupt Set Pending Register */ + uint32_t RESERVED2[31]; + __IO uint32_t ICPR[1]; /*!< (Offset: 0x180) Interrupt Clear Pending Register */ + uint32_t RESERVED3[31]; + uint32_t RESERVED4[64]; + __IO uint32_t IPR[8]; /*!< (Offset: 0x3EC) Interrupt Priority Register */ +} NVIC_Type; +/*@}*/ /* end of group CMSIS_CM0_NVIC */ + + +/** @addtogroup CMSIS_CM0_SCB CMSIS CM0 SCB + memory mapped structure for System Control Block (SCB) + @{ + */ +typedef struct +{ + __I uint32_t CPUID; /*!< Offset: 0x00 CPU ID Base Register */ + __IO uint32_t ICSR; /*!< Offset: 0x04 Interrupt Control State Register */ + uint32_t RESERVED0; + __IO uint32_t AIRCR; /*!< Offset: 0x0C Application Interrupt / Reset Control Register */ + __IO uint32_t SCR; /*!< Offset: 0x10 System Control Register */ + __IO uint32_t CCR; /*!< Offset: 0x14 Configuration Control Register */ + uint32_t RESERVED1; + __IO uint32_t SHP[2]; /*!< Offset: 0x1C System Handlers Priority Registers. [0] is RESERVED */ + __IO uint32_t SHCSR; /*!< Offset: 0x24 System Handler Control and State Register */ + uint32_t RESERVED2[2]; + __IO uint32_t DFSR; /*!< Offset: 0x30 Debug Fault Status Register */ +} SCB_Type; + +/* SCB CPUID Register Definitions */ +#define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */ +#define SCB_CPUID_IMPLEMENTER_Msk (0xFFul << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */ + +#define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */ +#define SCB_CPUID_VARIANT_Msk (0xFul << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */ + +#define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */ +#define SCB_CPUID_ARCHITECTURE_Msk (0xFul << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */ + +#define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */ +#define SCB_CPUID_PARTNO_Msk (0xFFFul << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */ + +#define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */ +#define SCB_CPUID_REVISION_Msk (0xFul << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION Mask */ + +/* SCB Interrupt Control State Register Definitions */ +#define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */ +#define SCB_ICSR_NMIPENDSET_Msk (1ul << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */ + +#define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */ +#define SCB_ICSR_PENDSVSET_Msk (1ul << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */ + +#define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */ +#define SCB_ICSR_PENDSVCLR_Msk (1ul << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */ + +#define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */ +#define SCB_ICSR_PENDSTSET_Msk (1ul << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */ + +#define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */ +#define SCB_ICSR_PENDSTCLR_Msk (1ul << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */ + +#define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */ +#define SCB_ICSR_ISRPREEMPT_Msk (1ul << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */ + +#define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */ +#define SCB_ICSR_ISRPENDING_Msk (1ul << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */ + +#define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */ +#define SCB_ICSR_VECTPENDING_Msk (0x1FFul << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */ + +#define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */ +#define SCB_ICSR_VECTACTIVE_Msk (0x1FFul << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE Mask */ + +/* SCB Application Interrupt and Reset Control Register Definitions */ +#define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */ +#define SCB_AIRCR_VECTKEY_Msk (0xFFFFul << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */ + +#define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */ +#define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFul << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */ + +#define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */ +#define SCB_AIRCR_ENDIANESS_Msk (1ul << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */ + +#define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */ +#define SCB_AIRCR_SYSRESETREQ_Msk (1ul << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */ + +#define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */ +#define SCB_AIRCR_VECTCLRACTIVE_Msk (1ul << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */ + +/* SCB System Control Register Definitions */ +#define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */ +#define SCB_SCR_SEVONPEND_Msk (1ul << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */ + +#define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */ +#define SCB_SCR_SLEEPDEEP_Msk (1ul << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */ + +#define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */ +#define SCB_SCR_SLEEPONEXIT_Msk (1ul << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */ + +/* SCB Configuration Control Register Definitions */ +#define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */ +#define SCB_CCR_STKALIGN_Msk (1ul << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */ + +#define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */ +#define SCB_CCR_UNALIGN_TRP_Msk (1ul << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */ + +/* SCB System Handler Control and State Register Definitions */ +#define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */ +#define SCB_SHCSR_SVCALLPENDED_Msk (1ul << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */ + +/* SCB Debug Fault Status Register Definitions */ +#define SCB_DFSR_EXTERNAL_Pos 4 /*!< SCB DFSR: EXTERNAL Position */ +#define SCB_DFSR_EXTERNAL_Msk (1ul << SCB_DFSR_EXTERNAL_Pos) /*!< SCB DFSR: EXTERNAL Mask */ + +#define SCB_DFSR_VCATCH_Pos 3 /*!< SCB DFSR: VCATCH Position */ +#define SCB_DFSR_VCATCH_Msk (1ul << SCB_DFSR_VCATCH_Pos) /*!< SCB DFSR: VCATCH Mask */ + +#define SCB_DFSR_DWTTRAP_Pos 2 /*!< SCB DFSR: DWTTRAP Position */ +#define SCB_DFSR_DWTTRAP_Msk (1ul << SCB_DFSR_DWTTRAP_Pos) /*!< SCB DFSR: DWTTRAP Mask */ + +#define SCB_DFSR_BKPT_Pos 1 /*!< SCB DFSR: BKPT Position */ +#define SCB_DFSR_BKPT_Msk (1ul << SCB_DFSR_BKPT_Pos) /*!< SCB DFSR: BKPT Mask */ + +#define SCB_DFSR_HALTED_Pos 0 /*!< SCB DFSR: HALTED Position */ +#define SCB_DFSR_HALTED_Msk (1ul << SCB_DFSR_HALTED_Pos) /*!< SCB DFSR: HALTED Mask */ +/*@}*/ /* end of group CMSIS_CM0_SCB */ + + +/** @addtogroup CMSIS_CM0_SysTick CMSIS CM0 SysTick + memory mapped structure for SysTick + @{ + */ +typedef struct +{ + __IO uint32_t CTRL; /*!< Offset: 0x00 SysTick Control and Status Register */ + __IO uint32_t LOAD; /*!< Offset: 0x04 SysTick Reload Value Register */ + __IO uint32_t VAL; /*!< Offset: 0x08 SysTick Current Value Register */ + __I uint32_t CALIB; /*!< Offset: 0x0C SysTick Calibration Register */ +} SysTick_Type; + +/* SysTick Control / Status Register Definitions */ +#define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */ +#define SysTick_CTRL_COUNTFLAG_Msk (1ul << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */ + +#define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */ +#define SysTick_CTRL_CLKSOURCE_Msk (1ul << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */ + +#define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */ +#define SysTick_CTRL_TICKINT_Msk (1ul << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */ + +#define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */ +#define SysTick_CTRL_ENABLE_Msk (1ul << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE Mask */ + +/* SysTick Reload Register Definitions */ +#define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */ +#define SysTick_LOAD_RELOAD_Msk (0xFFFFFFul << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */ + +/* SysTick Current Register Definitions */ +#define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */ +#define SysTick_VAL_CURRENT_Msk (0xFFFFFFul << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */ + +/* SysTick Calibration Register Definitions */ +#define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */ +#define SysTick_CALIB_NOREF_Msk (1ul << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */ + +#define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */ +#define SysTick_CALIB_SKEW_Msk (1ul << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */ + +#define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */ +#define SysTick_CALIB_TENMS_Msk (0xFFFFFFul << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */ +/*@}*/ /* end of group CMSIS_CM0_SysTick */ + + +/** @addtogroup CMSIS_CM0_CoreDebug CMSIS CM0 Core Debug + memory mapped structure for Core Debug Register + @{ + */ +typedef struct +{ + __IO uint32_t DHCSR; /*!< Offset: 0x00 Debug Halting Control and Status Register */ + __O uint32_t DCRSR; /*!< Offset: 0x04 Debug Core Register Selector Register */ + __IO uint32_t DCRDR; /*!< Offset: 0x08 Debug Core Register Data Register */ + __IO uint32_t DEMCR; /*!< Offset: 0x0C Debug Exception and Monitor Control Register */ +} CoreDebug_Type; + +/* Debug Halting Control and Status Register */ +#define CoreDebug_DHCSR_DBGKEY_Pos 16 /*!< CoreDebug DHCSR: DBGKEY Position */ +#define CoreDebug_DHCSR_DBGKEY_Msk (0xFFFFul << CoreDebug_DHCSR_DBGKEY_Pos) /*!< CoreDebug DHCSR: DBGKEY Mask */ + +#define CoreDebug_DHCSR_S_RESET_ST_Pos 25 /*!< CoreDebug DHCSR: S_RESET_ST Position */ +#define CoreDebug_DHCSR_S_RESET_ST_Msk (1ul << CoreDebug_DHCSR_S_RESET_ST_Pos) /*!< CoreDebug DHCSR: S_RESET_ST Mask */ + +#define CoreDebug_DHCSR_S_RETIRE_ST_Pos 24 /*!< CoreDebug DHCSR: S_RETIRE_ST Position */ +#define CoreDebug_DHCSR_S_RETIRE_ST_Msk (1ul << CoreDebug_DHCSR_S_RETIRE_ST_Pos) /*!< CoreDebug DHCSR: S_RETIRE_ST Mask */ + +#define CoreDebug_DHCSR_S_LOCKUP_Pos 19 /*!< CoreDebug DHCSR: S_LOCKUP Position */ +#define CoreDebug_DHCSR_S_LOCKUP_Msk (1ul << CoreDebug_DHCSR_S_LOCKUP_Pos) /*!< CoreDebug DHCSR: S_LOCKUP Mask */ + +#define CoreDebug_DHCSR_S_SLEEP_Pos 18 /*!< CoreDebug DHCSR: S_SLEEP Position */ +#define CoreDebug_DHCSR_S_SLEEP_Msk (1ul << CoreDebug_DHCSR_S_SLEEP_Pos) /*!< CoreDebug DHCSR: S_SLEEP Mask */ + +#define CoreDebug_DHCSR_S_HALT_Pos 17 /*!< CoreDebug DHCSR: S_HALT Position */ +#define CoreDebug_DHCSR_S_HALT_Msk (1ul << CoreDebug_DHCSR_S_HALT_Pos) /*!< CoreDebug DHCSR: S_HALT Mask */ + +#define CoreDebug_DHCSR_S_REGRDY_Pos 16 /*!< CoreDebug DHCSR: S_REGRDY Position */ +#define CoreDebug_DHCSR_S_REGRDY_Msk (1ul << CoreDebug_DHCSR_S_REGRDY_Pos) /*!< CoreDebug DHCSR: S_REGRDY Mask */ + +#define CoreDebug_DHCSR_C_MASKINTS_Pos 3 /*!< CoreDebug DHCSR: C_MASKINTS Position */ +#define CoreDebug_DHCSR_C_MASKINTS_Msk (1ul << CoreDebug_DHCSR_C_MASKINTS_Pos) /*!< CoreDebug DHCSR: C_MASKINTS Mask */ + +#define CoreDebug_DHCSR_C_STEP_Pos 2 /*!< CoreDebug DHCSR: C_STEP Position */ +#define CoreDebug_DHCSR_C_STEP_Msk (1ul << CoreDebug_DHCSR_C_STEP_Pos) /*!< CoreDebug DHCSR: C_STEP Mask */ + +#define CoreDebug_DHCSR_C_HALT_Pos 1 /*!< CoreDebug DHCSR: C_HALT Position */ +#define CoreDebug_DHCSR_C_HALT_Msk (1ul << CoreDebug_DHCSR_C_HALT_Pos) /*!< CoreDebug DHCSR: C_HALT Mask */ + +#define CoreDebug_DHCSR_C_DEBUGEN_Pos 0 /*!< CoreDebug DHCSR: C_DEBUGEN Position */ +#define CoreDebug_DHCSR_C_DEBUGEN_Msk (1ul << CoreDebug_DHCSR_C_DEBUGEN_Pos) /*!< CoreDebug DHCSR: C_DEBUGEN Mask */ + +/* Debug Core Register Selector Register */ +#define CoreDebug_DCRSR_REGWnR_Pos 16 /*!< CoreDebug DCRSR: REGWnR Position */ +#define CoreDebug_DCRSR_REGWnR_Msk (1ul << CoreDebug_DCRSR_REGWnR_Pos) /*!< CoreDebug DCRSR: REGWnR Mask */ + +#define CoreDebug_DCRSR_REGSEL_Pos 0 /*!< CoreDebug DCRSR: REGSEL Position */ +#define CoreDebug_DCRSR_REGSEL_Msk (0x1Ful << CoreDebug_DCRSR_REGSEL_Pos) /*!< CoreDebug DCRSR: REGSEL Mask */ + +/* Debug Exception and Monitor Control Register */ +#define CoreDebug_DEMCR_DWTENA_Pos 24 /*!< CoreDebug DEMCR: DWTENA Position */ +#define CoreDebug_DEMCR_DWTENA_Msk (1ul << CoreDebug_DEMCR_DWTENA_Pos) /*!< CoreDebug DEMCR: DWTENA Mask */ + +#define CoreDebug_DEMCR_VC_HARDERR_Pos 10 /*!< CoreDebug DEMCR: VC_HARDERR Position */ +#define CoreDebug_DEMCR_VC_HARDERR_Msk (1ul << CoreDebug_DEMCR_VC_HARDERR_Pos) /*!< CoreDebug DEMCR: VC_HARDERR Mask */ + +#define CoreDebug_DEMCR_VC_CORERESET_Pos 0 /*!< CoreDebug DEMCR: VC_CORERESET Position */ +#define CoreDebug_DEMCR_VC_CORERESET_Msk (1ul << CoreDebug_DEMCR_VC_CORERESET_Pos) /*!< CoreDebug DEMCR: VC_CORERESET Mask */ +/*@}*/ /* end of group CMSIS_CM0_CoreDebug */ + + +/* Memory mapping of Cortex-M0 Hardware */ +#define SCS_BASE (0xE000E000) /*!< System Control Space Base Address */ +#define CoreDebug_BASE (0xE000EDF0) /*!< Core Debug Base Address */ +#define SysTick_BASE (SCS_BASE + 0x0010) /*!< SysTick Base Address */ +#define NVIC_BASE (SCS_BASE + 0x0100) /*!< NVIC Base Address */ +#define SCB_BASE (SCS_BASE + 0x0D00) /*!< System Control Block Base Address */ + +#define SCB ((SCB_Type *) SCB_BASE) /*!< SCB configuration struct */ +#define SysTick ((SysTick_Type *) SysTick_BASE) /*!< SysTick configuration struct */ +#define NVIC ((NVIC_Type *) NVIC_BASE) /*!< NVIC configuration struct */ +#define CoreDebug ((CoreDebug_Type *) CoreDebug_BASE) /*!< Core Debug configuration struct */ + +/*@}*/ /* end of group CMSIS_CM0_core_register */ + + +/******************************************************************************* + * Hardware Abstraction Layer + ******************************************************************************/ + +#if defined ( __CC_ARM ) + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + +#elif defined ( __ICCARM__ ) + #define __ASM __asm /*!< asm keyword for IAR Compiler */ + #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for GNU Compiler */ + #define __INLINE inline /*!< inline keyword for GNU Compiler */ + +#elif defined ( __TASKING__ ) + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + +#endif + + +/* ################### Compiler specific Intrinsics ########################### */ + +#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ +/* ARM armcc specific functions */ + +#define __enable_fault_irq __enable_fiq +#define __disable_fault_irq __disable_fiq + +#define __NOP __nop +#define __WFI __wfi +#define __WFE __wfe +#define __SEV __sev +#define __ISB() __isb(0) +#define __DSB() __dsb(0) +#define __DMB() __dmb(0) +#define __REV __rev + + +/* intrinsic void __enable_irq(); */ +/* intrinsic void __disable_irq(); */ + + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +extern void __set_PSP(uint32_t topOfProcStack); + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +extern int32_t __REVSH(int16_t value); + + +#if (__ARMCC_VERSION < 400000) + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +extern uint32_t __get_PRIMASK(void); + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +extern void __set_PRIMASK(uint32_t priMask); + +/** + * @brief Return the Control Register value + * + * @return Control value + * + * Return the content of the control register + */ +extern uint32_t __get_CONTROL(void); + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +extern void __set_CONTROL(uint32_t control); + +#else /* (__ARMCC_VERSION >= 400000) */ + + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +static __INLINE uint32_t __get_PRIMASK(void) +{ + register uint32_t __regPriMask __ASM("primask"); + return(__regPriMask); +} + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +static __INLINE void __set_PRIMASK(uint32_t priMask) +{ + register uint32_t __regPriMask __ASM("primask"); + __regPriMask = (priMask); +} + +/** + * @brief Return the Control Register value + * + * @return Control value + * + * Return the content of the control register + */ +static __INLINE uint32_t __get_CONTROL(void) +{ + register uint32_t __regControl __ASM("control"); + return(__regControl); +} + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +static __INLINE void __set_CONTROL(uint32_t control) +{ + register uint32_t __regControl __ASM("control"); + __regControl = control; +} + +#endif /* __ARMCC_VERSION */ + + + +#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ +/* IAR iccarm specific functions */ + +#define __enable_irq __enable_interrupt /*!< global Interrupt enable */ +#define __disable_irq __disable_interrupt /*!< global Interrupt disable */ + +static __INLINE void __enable_fault_irq() { __ASM ("cpsie f"); } +static __INLINE void __disable_fault_irq() { __ASM ("cpsid f"); } + +#define __NOP __no_operation /*!< no operation intrinsic in IAR Compiler */ +static __INLINE void __WFI() { __ASM ("wfi"); } +static __INLINE void __WFE() { __ASM ("wfe"); } +static __INLINE void __SEV() { __ASM ("sev"); } + +/* intrinsic void __ISB(void) */ +/* intrinsic void __DSB(void) */ +/* intrinsic void __DMB(void) */ +/* intrinsic void __set_PRIMASK(); */ +/* intrinsic void __get_PRIMASK(); */ + + +/* intrinsic uint32_t __REV(uint32_t value); */ +/* intrinsic uint32_t __REVSH(uint32_t value); */ + + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +extern void __set_PSP(uint32_t topOfProcStack); + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + + + + + +#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ +/* GNU gcc specific functions */ + +static __INLINE void __enable_irq(void) { __ASM volatile ("cpsie i"); } +static __INLINE void __disable_irq(void) { __ASM volatile ("cpsid i"); } + +static __INLINE void __enable_fault_irq(void) { __ASM volatile ("cpsie f"); } +static __INLINE void __disable_fault_irq(void) { __ASM volatile ("cpsid f"); } + +static __INLINE void __NOP(void) { __ASM volatile ("nop"); } +static __INLINE void __WFI(void) { __ASM volatile ("wfi"); } +static __INLINE void __WFE(void) { __ASM volatile ("wfe"); } +static __INLINE void __SEV(void) { __ASM volatile ("sev"); } +static __INLINE void __ISB(void) { __ASM volatile ("isb"); } +static __INLINE void __DSB(void) { __ASM volatile ("dsb"); } +static __INLINE void __DMB(void) { __ASM volatile ("dmb"); } + + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +extern void __set_PSP(uint32_t topOfProcStack); + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +extern uint32_t __get_PRIMASK(void); + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +extern void __set_PRIMASK(uint32_t priMask); + +/** + * @brief Return the Control Register value +* +* @return Control value + * + * Return the content of the control register + */ +extern uint32_t __get_CONTROL(void); + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +extern void __set_CONTROL(uint32_t control); + +/** + * @brief Reverse byte order in integer value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in integer value + */ +extern uint32_t __REV(uint32_t value); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +extern int32_t __REVSH(int16_t value); + + +#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/ +/* TASKING carm specific functions */ + +/* + * The CMSIS functions have been implemented as intrinsics in the compiler. + * Please use "carm -?i" to get an up to date list of all instrinsics, + * Including the CMSIS ones. + */ + +#endif + + +/** @addtogroup CMSIS_CM0_Core_FunctionInterface CMSIS CM0 Core Function Interface + Core Function Interface containing: + - Core NVIC Functions + - Core SysTick Functions + - Core Reset Functions +*/ +/*@{*/ + +/* ########################## NVIC functions #################################### */ + +/* Interrupt Priorities are WORD accessible only under ARMv6M */ +/* The following MACROS handle generation of the register offset and byte masks */ +#define _BIT_SHIFT(IRQn) ( (((uint32_t)(IRQn) ) & 0x03) * 8 ) +#define _SHP_IDX(IRQn) ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) ) +#define _IP_IDX(IRQn) ( ((uint32_t)(IRQn) >> 2) ) + + +/** + * @brief Enable Interrupt in NVIC Interrupt Controller + * + * @param IRQn The positive number of the external interrupt to enable + * + * Enable a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_EnableIRQ(IRQn_Type IRQn) +{ + NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* enable interrupt */ +} + +/** + * @brief Disable the interrupt line for external interrupt specified + * + * @param IRQn The positive number of the external interrupt to disable + * + * Disable a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_DisableIRQ(IRQn_Type IRQn) +{ + NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* disable interrupt */ +} + +/** + * @brief Read the interrupt pending bit for a device specific interrupt source + * + * @param IRQn The number of the device specifc interrupt + * @return 1 = interrupt pending, 0 = interrupt not pending + * + * Read the pending register in NVIC and return 1 if its status is pending, + * otherwise it returns 0 + */ +static __INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) +{ + return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if pending else 0 */ +} + +/** + * @brief Set the pending bit for an external interrupt + * + * @param IRQn The number of the interrupt for set pending + * + * Set the pending bit for the specified interrupt. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) +{ + NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* set interrupt pending */ +} + +/** + * @brief Clear the pending bit for an external interrupt + * + * @param IRQn The number of the interrupt for clear pending + * + * Clear the pending bit for the specified interrupt. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn) +{ + NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */ +} + +/** + * @brief Set the priority for an interrupt + * + * @param IRQn The number of the interrupt for set priority + * @param priority The priority to set + * + * Set the priority for the specified interrupt. The interrupt + * number can be positive to specify an external (device specific) + * interrupt, or negative to specify an internal (core) interrupt. + * + * Note: The priority cannot be set for every core interrupt. + */ +static __INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority) +{ + if(IRQn < 0) { + SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) | + (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); } + else { + NVIC->IPR[_IP_IDX(IRQn)] = (NVIC->IPR[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) | + (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); } +} + +/** + * @brief Read the priority for an interrupt + * + * @param IRQn The number of the interrupt for get priority + * @return The priority for the interrupt + * + * Read the priority for the specified interrupt. The interrupt + * number can be positive to specify an external (device specific) + * interrupt, or negative to specify an internal (core) interrupt. + * + * The returned priority value is automatically aligned to the implemented + * priority bits of the microcontroller. + * + * Note: The priority cannot be set for every core interrupt. + */ +static __INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn) +{ + + if(IRQn < 0) { + return((uint32_t)((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */ + else { + return((uint32_t)((NVIC->IPR[_IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */ +} + + + +/* ################################## SysTick function ############################################ */ + +#if (!defined (__Vendor_SysTickConfig)) || (__Vendor_SysTickConfig == 0) + +/** + * @brief Initialize and start the SysTick counter and its interrupt. + * + * @param ticks number of ticks between two interrupts + * @return 1 = failed, 0 = successful + * + * Initialise the system tick timer and its interrupt and start the + * system tick timer / counter in free running mode to generate + * periodical interrupts. + */ +static __INLINE uint32_t SysTick_Config(uint32_t ticks) +{ + if (ticks > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */ + + SysTick->LOAD = (ticks & SysTick_LOAD_RELOAD_Msk) - 1; /* set reload register */ + NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Cortex-M0 System Interrupts */ + SysTick->VAL = 0; /* Load the SysTick Counter Value */ + SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | + SysTick_CTRL_TICKINT_Msk | + SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */ + return (0); /* Function successful */ +} + +#endif + + + + +/* ################################## Reset function ############################################ */ + +/** + * @brief Initiate a system reset request. + * + * Initiate a system reset request to reset the MCU + */ +static __INLINE void NVIC_SystemReset(void) +{ + SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) | + SCB_AIRCR_SYSRESETREQ_Msk); + __DSB(); /* Ensure completion of memory access */ + while(1); /* wait until reset */ +} + +/*@}*/ /* end of group CMSIS_CM0_Core_FunctionInterface */ + +#ifdef __cplusplus +} +#endif + +/*@}*/ /* end of group CMSIS_CM0_core_definitions */ + +#endif /* __CM0_CORE_H__ */ + +/*lint -restore */ diff --git a/os/ports/GCC/ARMCMx/cmsis/core_cm3.c b/os/ports/GCC/ARMCMx/cmsis/core_cm3.c new file mode 100644 index 000000000..56fddc52b --- /dev/null +++ b/os/ports/GCC/ARMCMx/cmsis/core_cm3.c @@ -0,0 +1,784 @@ +/**************************************************************************//** + * @file core_cm3.c + * @brief CMSIS Cortex-M3 Core Peripheral Access Layer Source File + * @version V1.30 + * @date 30. October 2009 + * + * @note + * Copyright (C) 2009 ARM Limited. All rights reserved. + * + * @par + * ARM Limited (ARM) is supplying this software for use with Cortex-M + * processor based microcontrollers. This file can be freely distributed + * within development tools that are supporting such ARM based processors. + * + * @par + * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED + * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. + * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. + * + ******************************************************************************/ + +#include + +/* define compiler specific symbols */ +#if defined ( __CC_ARM ) + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + +#elif defined ( __ICCARM__ ) + #define __ASM __asm /*!< asm keyword for IAR Compiler */ + #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for GNU Compiler */ + #define __INLINE inline /*!< inline keyword for GNU Compiler */ + +#elif defined ( __TASKING__ ) + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + +#endif + + +/* ################### Compiler specific Intrinsics ########################### */ + +#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ +/* ARM armcc specific functions */ + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +__ASM uint32_t __get_PSP(void) +{ + mrs r0, psp + bx lr +} + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +__ASM void __set_PSP(uint32_t topOfProcStack) +{ + msr psp, r0 + bx lr +} + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +__ASM uint32_t __get_MSP(void) +{ + mrs r0, msp + bx lr +} + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +__ASM void __set_MSP(uint32_t mainStackPointer) +{ + msr msp, r0 + bx lr +} + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +__ASM uint32_t __REV16(uint16_t value) +{ + rev16 r0, r0 + bx lr +} + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +__ASM int32_t __REVSH(int16_t value) +{ + revsh r0, r0 + bx lr +} + + +#if (__ARMCC_VERSION < 400000) + +/** + * @brief Remove the exclusive lock created by ldrex + * + * Removes the exclusive lock which is created by ldrex. + */ +__ASM void __CLREX(void) +{ + clrex +} + +/** + * @brief Return the Base Priority value + * + * @return BasePriority + * + * Return the content of the base priority register + */ +__ASM uint32_t __get_BASEPRI(void) +{ + mrs r0, basepri + bx lr +} + +/** + * @brief Set the Base Priority value + * + * @param basePri BasePriority + * + * Set the base priority register + */ +__ASM void __set_BASEPRI(uint32_t basePri) +{ + msr basepri, r0 + bx lr +} + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +__ASM uint32_t __get_PRIMASK(void) +{ + mrs r0, primask + bx lr +} + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +__ASM void __set_PRIMASK(uint32_t priMask) +{ + msr primask, r0 + bx lr +} + +/** + * @brief Return the Fault Mask value + * + * @return FaultMask + * + * Return the content of the fault mask register + */ +__ASM uint32_t __get_FAULTMASK(void) +{ + mrs r0, faultmask + bx lr +} + +/** + * @brief Set the Fault Mask value + * + * @param faultMask faultMask value + * + * Set the fault mask register + */ +__ASM void __set_FAULTMASK(uint32_t faultMask) +{ + msr faultmask, r0 + bx lr +} + +/** + * @brief Return the Control Register value + * + * @return Control value + * + * Return the content of the control register + */ +__ASM uint32_t __get_CONTROL(void) +{ + mrs r0, control + bx lr +} + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +__ASM void __set_CONTROL(uint32_t control) +{ + msr control, r0 + bx lr +} + +#endif /* __ARMCC_VERSION */ + + + +#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ +/* IAR iccarm specific functions */ +#pragma diag_suppress=Pe940 + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +uint32_t __get_PSP(void) +{ + __ASM("mrs r0, psp"); + __ASM("bx lr"); +} + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +void __set_PSP(uint32_t topOfProcStack) +{ + __ASM("msr psp, r0"); + __ASM("bx lr"); +} + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +uint32_t __get_MSP(void) +{ + __ASM("mrs r0, msp"); + __ASM("bx lr"); +} + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +void __set_MSP(uint32_t topOfMainStack) +{ + __ASM("msr msp, r0"); + __ASM("bx lr"); +} + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +uint32_t __REV16(uint16_t value) +{ + __ASM("rev16 r0, r0"); + __ASM("bx lr"); +} + +/** + * @brief Reverse bit order of value + * + * @param value value to reverse + * @return reversed value + * + * Reverse bit order of value + */ +uint32_t __RBIT(uint32_t value) +{ + __ASM("rbit r0, r0"); + __ASM("bx lr"); +} + +/** + * @brief LDR Exclusive (8 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 8 bit values) + */ +uint8_t __LDREXB(uint8_t *addr) +{ + __ASM("ldrexb r0, [r0]"); + __ASM("bx lr"); +} + +/** + * @brief LDR Exclusive (16 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 16 bit values + */ +uint16_t __LDREXH(uint16_t *addr) +{ + __ASM("ldrexh r0, [r0]"); + __ASM("bx lr"); +} + +/** + * @brief LDR Exclusive (32 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 32 bit values + */ +uint32_t __LDREXW(uint32_t *addr) +{ + __ASM("ldrex r0, [r0]"); + __ASM("bx lr"); +} + +/** + * @brief STR Exclusive (8 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 8 bit values + */ +uint32_t __STREXB(uint8_t value, uint8_t *addr) +{ + __ASM("strexb r0, r0, [r1]"); + __ASM("bx lr"); +} + +/** + * @brief STR Exclusive (16 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 16 bit values + */ +uint32_t __STREXH(uint16_t value, uint16_t *addr) +{ + __ASM("strexh r0, r0, [r1]"); + __ASM("bx lr"); +} + +/** + * @brief STR Exclusive (32 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 32 bit values + */ +uint32_t __STREXW(uint32_t value, uint32_t *addr) +{ + __ASM("strex r0, r0, [r1]"); + __ASM("bx lr"); +} + +#pragma diag_default=Pe940 + + +#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ +/* GNU gcc specific functions */ + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +uint32_t __get_PSP(void) __attribute__( ( naked ) ); +uint32_t __get_PSP(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, psp\n\t" + "MOV r0, %0 \n\t" + "BX lr \n\t" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +void __set_PSP(uint32_t topOfProcStack) __attribute__( ( naked ) ); +void __set_PSP(uint32_t topOfProcStack) +{ + __ASM volatile ("MSR psp, %0\n\t" + "BX lr \n\t" : : "r" (topOfProcStack) ); +} + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +uint32_t __get_MSP(void) __attribute__( ( naked ) ); +uint32_t __get_MSP(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, msp\n\t" + "MOV r0, %0 \n\t" + "BX lr \n\t" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +void __set_MSP(uint32_t topOfMainStack) __attribute__( ( naked ) ); +void __set_MSP(uint32_t topOfMainStack) +{ + __ASM volatile ("MSR msp, %0\n\t" + "BX lr \n\t" : : "r" (topOfMainStack) ); +} + +/** + * @brief Return the Base Priority value + * + * @return BasePriority + * + * Return the content of the base priority register + */ +uint32_t __get_BASEPRI(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, basepri_max" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Base Priority value + * + * @param basePri BasePriority + * + * Set the base priority register + */ +void __set_BASEPRI(uint32_t value) +{ + __ASM volatile ("MSR basepri, %0" : : "r" (value) ); +} + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +uint32_t __get_PRIMASK(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, primask" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +void __set_PRIMASK(uint32_t priMask) +{ + __ASM volatile ("MSR primask, %0" : : "r" (priMask) ); +} + +/** + * @brief Return the Fault Mask value + * + * @return FaultMask + * + * Return the content of the fault mask register + */ +uint32_t __get_FAULTMASK(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, faultmask" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Fault Mask value + * + * @param faultMask faultMask value + * + * Set the fault mask register + */ +void __set_FAULTMASK(uint32_t faultMask) +{ + __ASM volatile ("MSR faultmask, %0" : : "r" (faultMask) ); +} + +/** + * @brief Return the Control Register value +* +* @return Control value + * + * Return the content of the control register + */ +uint32_t __get_CONTROL(void) +{ + uint32_t result=0; + + __ASM volatile ("MRS %0, control" : "=r" (result) ); + return(result); +} + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +void __set_CONTROL(uint32_t control) +{ + __ASM volatile ("MSR control, %0" : : "r" (control) ); +} + + +/** + * @brief Reverse byte order in integer value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in integer value + */ +uint32_t __REV(uint32_t value) +{ + uint32_t result=0; + + __ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +uint32_t __REV16(uint16_t value) +{ + uint32_t result=0; + + __ASM volatile ("rev16 %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +int32_t __REVSH(int16_t value) +{ + uint32_t result=0; + + __ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + +/** + * @brief Reverse bit order of value + * + * @param value value to reverse + * @return reversed value + * + * Reverse bit order of value + */ +uint32_t __RBIT(uint32_t value) +{ + uint32_t result=0; + + __ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) ); + return(result); +} + +/** + * @brief LDR Exclusive (8 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 8 bit value + */ +uint8_t __LDREXB(uint8_t *addr) +{ + uint8_t result=0; + + __ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) ); + return(result); +} + +/** + * @brief LDR Exclusive (16 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 16 bit values + */ +uint16_t __LDREXH(uint16_t *addr) +{ + uint16_t result=0; + + __ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) ); + return(result); +} + +/** + * @brief LDR Exclusive (32 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 32 bit values + */ +uint32_t __LDREXW(uint32_t *addr) +{ + uint32_t result=0; + + __ASM volatile ("ldrex %0, [%1]" : "=r" (result) : "r" (addr) ); + return(result); +} + +/** + * @brief STR Exclusive (8 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 8 bit values + */ +uint32_t __STREXB(uint8_t value, uint8_t *addr) +{ + uint32_t result=0; + + __ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) ); + return(result); +} + +/** + * @brief STR Exclusive (16 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 16 bit values + */ +uint32_t __STREXH(uint16_t value, uint16_t *addr) +{ + uint32_t result=0; + + __ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) ); + return(result); +} + +/** + * @brief STR Exclusive (32 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 32 bit values + */ +uint32_t __STREXW(uint32_t value, uint32_t *addr) +{ + uint32_t result=0; + + __ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) ); + return(result); +} + + +#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/ +/* TASKING carm specific functions */ + +/* + * The CMSIS functions have been implemented as intrinsics in the compiler. + * Please use "carm -?i" to get an up to date list of all instrinsics, + * Including the CMSIS ones. + */ + +#endif diff --git a/os/ports/GCC/ARMCMx/cmsis/core_cm3.h b/os/ports/GCC/ARMCMx/cmsis/core_cm3.h new file mode 100644 index 000000000..5c75ec859 --- /dev/null +++ b/os/ports/GCC/ARMCMx/cmsis/core_cm3.h @@ -0,0 +1,1842 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/* + * Parts of this files have been modified in ChibiOS/RT in order to fix + * some code quality issues. + */ + +/**************************************************************************//** + * @file core_cm3.h + * @brief CMSIS Cortex-M3 Core Peripheral Access Layer Header File + * @version V1.30 + * @date 30. October 2009 + * + * @note + * Copyright (C) 2009 ARM Limited. All rights reserved. + * + * @par + * ARM Limited (ARM) is supplying this software for use with Cortex-M + * processor based microcontrollers. This file can be freely distributed + * within development tools that are supporting such ARM based processors. + * + * @par + * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED + * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. + * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. + * + ******************************************************************************/ + +#ifndef __CM3_CORE_H__ +#define __CM3_CORE_H__ + +/** @addtogroup CMSIS_CM3_core_LintCinfiguration CMSIS CM3 Core Lint Configuration + * + * List of Lint messages which will be suppressed and not shown: + * - Error 10: \n + * register uint32_t __regBasePri __asm("basepri"); \n + * Error 10: Expecting ';' + * . + * - Error 530: \n + * return(__regBasePri); \n + * Warning 530: Symbol '__regBasePri' (line 264) not initialized + * . + * - Error 550: \n + * __regBasePri = (basePri & 0x1ff); \n + * Warning 550: Symbol '__regBasePri' (line 271) not accessed + * . + * - Error 754: \n + * uint32_t RESERVED0[24]; \n + * Info 754: local structure member '' (line 109, file ./cm3_core.h) not referenced + * . + * - Error 750: \n + * #define __CM3_CORE_H__ \n + * Info 750: local macro '__CM3_CORE_H__' (line 43, file./cm3_core.h) not referenced + * . + * - Error 528: \n + * static __INLINE void NVIC_DisableIRQ(uint32_t IRQn) \n + * Warning 528: Symbol 'NVIC_DisableIRQ(unsigned int)' (line 419, file ./cm3_core.h) not referenced + * . + * - Error 751: \n + * } InterruptType_Type; \n + * Info 751: local typedef 'InterruptType_Type' (line 170, file ./cm3_core.h) not referenced + * . + * Note: To re-enable a Message, insert a space before 'lint' * + * + */ + +/*lint -save */ +/*lint -e10 */ +/*lint -e530 */ +/*lint -e550 */ +/*lint -e754 */ +/*lint -e750 */ +/*lint -e528 */ +/*lint -e751 */ + + +/** @addtogroup CMSIS_CM3_core_definitions CM3 Core Definitions + This file defines all structures and symbols for CMSIS core: + - CMSIS version number + - Cortex-M core registers and bitfields + - Cortex-M core peripheral base address + @{ + */ + +#ifdef __cplusplus + extern "C" { +#endif + +#define __CM3_CMSIS_VERSION_MAIN (0x01) /*!< [31:16] CMSIS HAL main version */ +#define __CM3_CMSIS_VERSION_SUB (0x30) /*!< [15:0] CMSIS HAL sub version */ +#define __CM3_CMSIS_VERSION ((__CM3_CMSIS_VERSION_MAIN << 16) | __CM3_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */ + +#define __CORTEX_M (0x03) /*!< Cortex core */ + +#include /* Include standard types */ + +#if defined (__ICCARM__) + #include /* IAR Intrinsics */ +#endif + + +#ifndef __NVIC_PRIO_BITS + #define __NVIC_PRIO_BITS 4 /*!< standard definition for NVIC Priority Bits */ +#endif + + + + +/** + * IO definitions + * + * define access restrictions to peripheral registers + */ + +#ifdef __cplusplus + #define __I volatile /*!< defines 'read only' permissions */ +#else + #define __I volatile const /*!< defines 'read only' permissions */ +#endif +#define __O volatile /*!< defines 'write only' permissions */ +#define __IO volatile /*!< defines 'read / write' permissions */ + + + +/******************************************************************************* + * Register Abstraction + ******************************************************************************/ +/** @addtogroup CMSIS_CM3_core_register CMSIS CM3 Core Register + @{ +*/ + + +/** @addtogroup CMSIS_CM3_NVIC CMSIS CM3 NVIC + memory mapped structure for Nested Vectored Interrupt Controller (NVIC) + @{ + */ +typedef struct +{ + __IO uint32_t ISER[8]; /*!< Offset: 0x000 Interrupt Set Enable Register */ + uint32_t RESERVED0[24]; + __IO uint32_t ICER[8]; /*!< Offset: 0x080 Interrupt Clear Enable Register */ + uint32_t RSERVED1[24]; + __IO uint32_t ISPR[8]; /*!< Offset: 0x100 Interrupt Set Pending Register */ + uint32_t RESERVED2[24]; + __IO uint32_t ICPR[8]; /*!< Offset: 0x180 Interrupt Clear Pending Register */ + uint32_t RESERVED3[24]; + __IO uint32_t IABR[8]; /*!< Offset: 0x200 Interrupt Active bit Register */ + uint32_t RESERVED4[56]; + __IO uint8_t IP[240]; /*!< Offset: 0x300 Interrupt Priority Register (8Bit wide) */ + uint32_t RESERVED5[644]; + __O uint32_t STIR; /*!< Offset: 0xE00 Software Trigger Interrupt Register */ +} NVIC_Type; +/*@}*/ /* end of group CMSIS_CM3_NVIC */ + + +/** @addtogroup CMSIS_CM3_SCB CMSIS CM3 SCB + memory mapped structure for System Control Block (SCB) + @{ + */ +typedef struct +{ + __I uint32_t CPUID; /*!< Offset: 0x00 CPU ID Base Register */ + __IO uint32_t ICSR; /*!< Offset: 0x04 Interrupt Control State Register */ + __IO uint32_t VTOR; /*!< Offset: 0x08 Vector Table Offset Register */ + __IO uint32_t AIRCR; /*!< Offset: 0x0C Application Interrupt / Reset Control Register */ + __IO uint32_t SCR; /*!< Offset: 0x10 System Control Register */ + __IO uint32_t CCR; /*!< Offset: 0x14 Configuration Control Register */ + __IO uint8_t SHP[12]; /*!< Offset: 0x18 System Handlers Priority Registers (4-7, 8-11, 12-15) */ + __IO uint32_t SHCSR; /*!< Offset: 0x24 System Handler Control and State Register */ + __IO uint32_t CFSR; /*!< Offset: 0x28 Configurable Fault Status Register */ + __IO uint32_t HFSR; /*!< Offset: 0x2C Hard Fault Status Register */ + __IO uint32_t DFSR; /*!< Offset: 0x30 Debug Fault Status Register */ + __IO uint32_t MMFAR; /*!< Offset: 0x34 Mem Manage Address Register */ + __IO uint32_t BFAR; /*!< Offset: 0x38 Bus Fault Address Register */ + __IO uint32_t AFSR; /*!< Offset: 0x3C Auxiliary Fault Status Register */ + __I uint32_t PFR[2]; /*!< Offset: 0x40 Processor Feature Register */ + __I uint32_t DFR; /*!< Offset: 0x48 Debug Feature Register */ + __I uint32_t ADR; /*!< Offset: 0x4C Auxiliary Feature Register */ + __I uint32_t MMFR[4]; /*!< Offset: 0x50 Memory Model Feature Register */ + __I uint32_t ISAR[5]; /*!< Offset: 0x60 ISA Feature Register */ +} SCB_Type; + +/* SCB CPUID Register Definitions */ +#define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */ +#define SCB_CPUID_IMPLEMENTER_Msk (0xFFul << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */ + +#define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */ +#define SCB_CPUID_VARIANT_Msk (0xFul << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */ + +#define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */ +#define SCB_CPUID_PARTNO_Msk (0xFFFul << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */ + +#define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */ +#define SCB_CPUID_REVISION_Msk (0xFul << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION Mask */ + +/* SCB Interrupt Control State Register Definitions */ +#define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */ +#define SCB_ICSR_NMIPENDSET_Msk (1ul << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */ + +#define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */ +#define SCB_ICSR_PENDSVSET_Msk (1ul << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */ + +#define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */ +#define SCB_ICSR_PENDSVCLR_Msk (1ul << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */ + +#define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */ +#define SCB_ICSR_PENDSTSET_Msk (1ul << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */ + +#define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */ +#define SCB_ICSR_PENDSTCLR_Msk (1ul << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */ + +#define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */ +#define SCB_ICSR_ISRPREEMPT_Msk (1ul << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */ + +#define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */ +#define SCB_ICSR_ISRPENDING_Msk (1ul << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */ + +#define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */ +#define SCB_ICSR_VECTPENDING_Msk (0x1FFul << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */ + +#define SCB_ICSR_RETTOBASE_Pos 11 /*!< SCB ICSR: RETTOBASE Position */ +#define SCB_ICSR_RETTOBASE_Msk (1ul << SCB_ICSR_RETTOBASE_Pos) /*!< SCB ICSR: RETTOBASE Mask */ + +#define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */ +#define SCB_ICSR_VECTACTIVE_Msk (0x1FFul << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE Mask */ + +/* SCB Interrupt Control State Register Definitions */ +#define SCB_VTOR_TBLBASE_Pos 29 /*!< SCB VTOR: TBLBASE Position */ +#define SCB_VTOR_TBLBASE_Msk (0x1FFul << SCB_VTOR_TBLBASE_Pos) /*!< SCB VTOR: TBLBASE Mask */ + +#define SCB_VTOR_TBLOFF_Pos 7 /*!< SCB VTOR: TBLOFF Position */ +#define SCB_VTOR_TBLOFF_Msk (0x3FFFFFul << SCB_VTOR_TBLOFF_Pos) /*!< SCB VTOR: TBLOFF Mask */ + +/* SCB Application Interrupt and Reset Control Register Definitions */ +#define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */ +#define SCB_AIRCR_VECTKEY_Msk (0xFFFFul << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */ + +#define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */ +#define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFul << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */ + +#define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */ +#define SCB_AIRCR_ENDIANESS_Msk (1ul << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */ + +#define SCB_AIRCR_PRIGROUP_Pos 8 /*!< SCB AIRCR: PRIGROUP Position */ +#define SCB_AIRCR_PRIGROUP_Msk (7ul << SCB_AIRCR_PRIGROUP_Pos) /*!< SCB AIRCR: PRIGROUP Mask */ + +#define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */ +#define SCB_AIRCR_SYSRESETREQ_Msk (1ul << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */ + +#define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */ +#define SCB_AIRCR_VECTCLRACTIVE_Msk (1ul << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */ + +#define SCB_AIRCR_VECTRESET_Pos 0 /*!< SCB AIRCR: VECTRESET Position */ +#define SCB_AIRCR_VECTRESET_Msk (1ul << SCB_AIRCR_VECTRESET_Pos) /*!< SCB AIRCR: VECTRESET Mask */ + +/* SCB System Control Register Definitions */ +#define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */ +#define SCB_SCR_SEVONPEND_Msk (1ul << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */ + +#define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */ +#define SCB_SCR_SLEEPDEEP_Msk (1ul << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */ + +#define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */ +#define SCB_SCR_SLEEPONEXIT_Msk (1ul << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */ + +/* SCB Configuration Control Register Definitions */ +#define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */ +#define SCB_CCR_STKALIGN_Msk (1ul << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */ + +#define SCB_CCR_BFHFNMIGN_Pos 8 /*!< SCB CCR: BFHFNMIGN Position */ +#define SCB_CCR_BFHFNMIGN_Msk (1ul << SCB_CCR_BFHFNMIGN_Pos) /*!< SCB CCR: BFHFNMIGN Mask */ + +#define SCB_CCR_DIV_0_TRP_Pos 4 /*!< SCB CCR: DIV_0_TRP Position */ +#define SCB_CCR_DIV_0_TRP_Msk (1ul << SCB_CCR_DIV_0_TRP_Pos) /*!< SCB CCR: DIV_0_TRP Mask */ + +#define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */ +#define SCB_CCR_UNALIGN_TRP_Msk (1ul << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */ + +#define SCB_CCR_USERSETMPEND_Pos 1 /*!< SCB CCR: USERSETMPEND Position */ +#define SCB_CCR_USERSETMPEND_Msk (1ul << SCB_CCR_USERSETMPEND_Pos) /*!< SCB CCR: USERSETMPEND Mask */ + +#define SCB_CCR_NONBASETHRDENA_Pos 0 /*!< SCB CCR: NONBASETHRDENA Position */ +#define SCB_CCR_NONBASETHRDENA_Msk (1ul << SCB_CCR_NONBASETHRDENA_Pos) /*!< SCB CCR: NONBASETHRDENA Mask */ + +/* SCB System Handler Control and State Register Definitions */ +#define SCB_SHCSR_USGFAULTENA_Pos 18 /*!< SCB SHCSR: USGFAULTENA Position */ +#define SCB_SHCSR_USGFAULTENA_Msk (1ul << SCB_SHCSR_USGFAULTENA_Pos) /*!< SCB SHCSR: USGFAULTENA Mask */ + +#define SCB_SHCSR_BUSFAULTENA_Pos 17 /*!< SCB SHCSR: BUSFAULTENA Position */ +#define SCB_SHCSR_BUSFAULTENA_Msk (1ul << SCB_SHCSR_BUSFAULTENA_Pos) /*!< SCB SHCSR: BUSFAULTENA Mask */ + +#define SCB_SHCSR_MEMFAULTENA_Pos 16 /*!< SCB SHCSR: MEMFAULTENA Position */ +#define SCB_SHCSR_MEMFAULTENA_Msk (1ul << SCB_SHCSR_MEMFAULTENA_Pos) /*!< SCB SHCSR: MEMFAULTENA Mask */ + +#define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */ +#define SCB_SHCSR_SVCALLPENDED_Msk (1ul << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */ + +#define SCB_SHCSR_BUSFAULTPENDED_Pos 14 /*!< SCB SHCSR: BUSFAULTPENDED Position */ +#define SCB_SHCSR_BUSFAULTPENDED_Msk (1ul << SCB_SHCSR_BUSFAULTPENDED_Pos) /*!< SCB SHCSR: BUSFAULTPENDED Mask */ + +#define SCB_SHCSR_MEMFAULTPENDED_Pos 13 /*!< SCB SHCSR: MEMFAULTPENDED Position */ +#define SCB_SHCSR_MEMFAULTPENDED_Msk (1ul << SCB_SHCSR_MEMFAULTPENDED_Pos) /*!< SCB SHCSR: MEMFAULTPENDED Mask */ + +#define SCB_SHCSR_USGFAULTPENDED_Pos 12 /*!< SCB SHCSR: USGFAULTPENDED Position */ +#define SCB_SHCSR_USGFAULTPENDED_Msk (1ul << SCB_SHCSR_USGFAULTPENDED_Pos) /*!< SCB SHCSR: USGFAULTPENDED Mask */ + +#define SCB_SHCSR_SYSTICKACT_Pos 11 /*!< SCB SHCSR: SYSTICKACT Position */ +#define SCB_SHCSR_SYSTICKACT_Msk (1ul << SCB_SHCSR_SYSTICKACT_Pos) /*!< SCB SHCSR: SYSTICKACT Mask */ + +#define SCB_SHCSR_PENDSVACT_Pos 10 /*!< SCB SHCSR: PENDSVACT Position */ +#define SCB_SHCSR_PENDSVACT_Msk (1ul << SCB_SHCSR_PENDSVACT_Pos) /*!< SCB SHCSR: PENDSVACT Mask */ + +#define SCB_SHCSR_MONITORACT_Pos 8 /*!< SCB SHCSR: MONITORACT Position */ +#define SCB_SHCSR_MONITORACT_Msk (1ul << SCB_SHCSR_MONITORACT_Pos) /*!< SCB SHCSR: MONITORACT Mask */ + +#define SCB_SHCSR_SVCALLACT_Pos 7 /*!< SCB SHCSR: SVCALLACT Position */ +#define SCB_SHCSR_SVCALLACT_Msk (1ul << SCB_SHCSR_SVCALLACT_Pos) /*!< SCB SHCSR: SVCALLACT Mask */ + +#define SCB_SHCSR_USGFAULTACT_Pos 3 /*!< SCB SHCSR: USGFAULTACT Position */ +#define SCB_SHCSR_USGFAULTACT_Msk (1ul << SCB_SHCSR_USGFAULTACT_Pos) /*!< SCB SHCSR: USGFAULTACT Mask */ + +#define SCB_SHCSR_BUSFAULTACT_Pos 1 /*!< SCB SHCSR: BUSFAULTACT Position */ +#define SCB_SHCSR_BUSFAULTACT_Msk (1ul << SCB_SHCSR_BUSFAULTACT_Pos) /*!< SCB SHCSR: BUSFAULTACT Mask */ + +#define SCB_SHCSR_MEMFAULTACT_Pos 0 /*!< SCB SHCSR: MEMFAULTACT Position */ +#define SCB_SHCSR_MEMFAULTACT_Msk (1ul << SCB_SHCSR_MEMFAULTACT_Pos) /*!< SCB SHCSR: MEMFAULTACT Mask */ + +/* SCB Configurable Fault Status Registers Definitions */ +#define SCB_CFSR_USGFAULTSR_Pos 16 /*!< SCB CFSR: Usage Fault Status Register Position */ +#define SCB_CFSR_USGFAULTSR_Msk (0xFFFFul << SCB_CFSR_USGFAULTSR_Pos) /*!< SCB CFSR: Usage Fault Status Register Mask */ + +#define SCB_CFSR_BUSFAULTSR_Pos 8 /*!< SCB CFSR: Bus Fault Status Register Position */ +#define SCB_CFSR_BUSFAULTSR_Msk (0xFFul << SCB_CFSR_BUSFAULTSR_Pos) /*!< SCB CFSR: Bus Fault Status Register Mask */ + +#define SCB_CFSR_MEMFAULTSR_Pos 0 /*!< SCB CFSR: Memory Manage Fault Status Register Position */ +#define SCB_CFSR_MEMFAULTSR_Msk (0xFFul << SCB_CFSR_MEMFAULTSR_Pos) /*!< SCB CFSR: Memory Manage Fault Status Register Mask */ + +/* SCB Hard Fault Status Registers Definitions */ +#define SCB_HFSR_DEBUGEVT_Pos 31 /*!< SCB HFSR: DEBUGEVT Position */ +#define SCB_HFSR_DEBUGEVT_Msk (1ul << SCB_HFSR_DEBUGEVT_Pos) /*!< SCB HFSR: DEBUGEVT Mask */ + +#define SCB_HFSR_FORCED_Pos 30 /*!< SCB HFSR: FORCED Position */ +#define SCB_HFSR_FORCED_Msk (1ul << SCB_HFSR_FORCED_Pos) /*!< SCB HFSR: FORCED Mask */ + +#define SCB_HFSR_VECTTBL_Pos 1 /*!< SCB HFSR: VECTTBL Position */ +#define SCB_HFSR_VECTTBL_Msk (1ul << SCB_HFSR_VECTTBL_Pos) /*!< SCB HFSR: VECTTBL Mask */ + +/* SCB Debug Fault Status Register Definitions */ +#define SCB_DFSR_EXTERNAL_Pos 4 /*!< SCB DFSR: EXTERNAL Position */ +#define SCB_DFSR_EXTERNAL_Msk (1ul << SCB_DFSR_EXTERNAL_Pos) /*!< SCB DFSR: EXTERNAL Mask */ + +#define SCB_DFSR_VCATCH_Pos 3 /*!< SCB DFSR: VCATCH Position */ +#define SCB_DFSR_VCATCH_Msk (1ul << SCB_DFSR_VCATCH_Pos) /*!< SCB DFSR: VCATCH Mask */ + +#define SCB_DFSR_DWTTRAP_Pos 2 /*!< SCB DFSR: DWTTRAP Position */ +#define SCB_DFSR_DWTTRAP_Msk (1ul << SCB_DFSR_DWTTRAP_Pos) /*!< SCB DFSR: DWTTRAP Mask */ + +#define SCB_DFSR_BKPT_Pos 1 /*!< SCB DFSR: BKPT Position */ +#define SCB_DFSR_BKPT_Msk (1ul << SCB_DFSR_BKPT_Pos) /*!< SCB DFSR: BKPT Mask */ + +#define SCB_DFSR_HALTED_Pos 0 /*!< SCB DFSR: HALTED Position */ +#define SCB_DFSR_HALTED_Msk (1ul << SCB_DFSR_HALTED_Pos) /*!< SCB DFSR: HALTED Mask */ +/*@}*/ /* end of group CMSIS_CM3_SCB */ + + +/** @addtogroup CMSIS_CM3_SysTick CMSIS CM3 SysTick + memory mapped structure for SysTick + @{ + */ +typedef struct +{ + __IO uint32_t CTRL; /*!< Offset: 0x00 SysTick Control and Status Register */ + __IO uint32_t LOAD; /*!< Offset: 0x04 SysTick Reload Value Register */ + __IO uint32_t VAL; /*!< Offset: 0x08 SysTick Current Value Register */ + __I uint32_t CALIB; /*!< Offset: 0x0C SysTick Calibration Register */ +} SysTick_Type; + +/* SysTick Control / Status Register Definitions */ +#define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */ +#define SysTick_CTRL_COUNTFLAG_Msk (1ul << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */ + +#define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */ +#define SysTick_CTRL_CLKSOURCE_Msk (1ul << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */ + +#define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */ +#define SysTick_CTRL_TICKINT_Msk (1ul << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */ + +#define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */ +#define SysTick_CTRL_ENABLE_Msk (1ul << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE Mask */ + +/* SysTick Reload Register Definitions */ +#define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */ +#define SysTick_LOAD_RELOAD_Msk (0xFFFFFFul << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */ + +/* SysTick Current Register Definitions */ +#define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */ +#define SysTick_VAL_CURRENT_Msk (0xFFFFFFul << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */ + +/* SysTick Calibration Register Definitions */ +#define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */ +#define SysTick_CALIB_NOREF_Msk (1ul << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */ + +#define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */ +#define SysTick_CALIB_SKEW_Msk (1ul << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */ + +#define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */ +#define SysTick_CALIB_TENMS_Msk (0xFFFFFFul << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */ +/*@}*/ /* end of group CMSIS_CM3_SysTick */ + + +/** @addtogroup CMSIS_CM3_ITM CMSIS CM3 ITM + memory mapped structure for Instrumentation Trace Macrocell (ITM) + @{ + */ +typedef struct +{ + __O union + { + __O uint8_t u8; /*!< Offset: ITM Stimulus Port 8-bit */ + __O uint16_t u16; /*!< Offset: ITM Stimulus Port 16-bit */ + __O uint32_t u32; /*!< Offset: ITM Stimulus Port 32-bit */ + } PORT [32]; /*!< Offset: 0x00 ITM Stimulus Port Registers */ + uint32_t RESERVED0[864]; + __IO uint32_t TER; /*!< Offset: ITM Trace Enable Register */ + uint32_t RESERVED1[15]; + __IO uint32_t TPR; /*!< Offset: ITM Trace Privilege Register */ + uint32_t RESERVED2[15]; + __IO uint32_t TCR; /*!< Offset: ITM Trace Control Register */ + uint32_t RESERVED3[29]; + __IO uint32_t IWR; /*!< Offset: ITM Integration Write Register */ + __IO uint32_t IRR; /*!< Offset: ITM Integration Read Register */ + __IO uint32_t IMCR; /*!< Offset: ITM Integration Mode Control Register */ + uint32_t RESERVED4[43]; + __IO uint32_t LAR; /*!< Offset: ITM Lock Access Register */ + __IO uint32_t LSR; /*!< Offset: ITM Lock Status Register */ + uint32_t RESERVED5[6]; + __I uint32_t PID4; /*!< Offset: ITM Peripheral Identification Register #4 */ + __I uint32_t PID5; /*!< Offset: ITM Peripheral Identification Register #5 */ + __I uint32_t PID6; /*!< Offset: ITM Peripheral Identification Register #6 */ + __I uint32_t PID7; /*!< Offset: ITM Peripheral Identification Register #7 */ + __I uint32_t PID0; /*!< Offset: ITM Peripheral Identification Register #0 */ + __I uint32_t PID1; /*!< Offset: ITM Peripheral Identification Register #1 */ + __I uint32_t PID2; /*!< Offset: ITM Peripheral Identification Register #2 */ + __I uint32_t PID3; /*!< Offset: ITM Peripheral Identification Register #3 */ + __I uint32_t CID0; /*!< Offset: ITM Component Identification Register #0 */ + __I uint32_t CID1; /*!< Offset: ITM Component Identification Register #1 */ + __I uint32_t CID2; /*!< Offset: ITM Component Identification Register #2 */ + __I uint32_t CID3; /*!< Offset: ITM Component Identification Register #3 */ +} ITM_Type; + +/* ITM Trace Privilege Register Definitions */ +#define ITM_TPR_PRIVMASK_Pos 0 /*!< ITM TPR: PRIVMASK Position */ +#define ITM_TPR_PRIVMASK_Msk (0xFul << ITM_TPR_PRIVMASK_Pos) /*!< ITM TPR: PRIVMASK Mask */ + +/* ITM Trace Control Register Definitions */ +#define ITM_TCR_BUSY_Pos 23 /*!< ITM TCR: BUSY Position */ +#define ITM_TCR_BUSY_Msk (1ul << ITM_TCR_BUSY_Pos) /*!< ITM TCR: BUSY Mask */ + +#define ITM_TCR_ATBID_Pos 16 /*!< ITM TCR: ATBID Position */ +#define ITM_TCR_ATBID_Msk (0x7Ful << ITM_TCR_ATBID_Pos) /*!< ITM TCR: ATBID Mask */ + +#define ITM_TCR_TSPrescale_Pos 8 /*!< ITM TCR: TSPrescale Position */ +#define ITM_TCR_TSPrescale_Msk (3ul << ITM_TCR_TSPrescale_Pos) /*!< ITM TCR: TSPrescale Mask */ + +#define ITM_TCR_SWOENA_Pos 4 /*!< ITM TCR: SWOENA Position */ +#define ITM_TCR_SWOENA_Msk (1ul << ITM_TCR_SWOENA_Pos) /*!< ITM TCR: SWOENA Mask */ + +#define ITM_TCR_DWTENA_Pos 3 /*!< ITM TCR: DWTENA Position */ +#define ITM_TCR_DWTENA_Msk (1ul << ITM_TCR_DWTENA_Pos) /*!< ITM TCR: DWTENA Mask */ + +#define ITM_TCR_SYNCENA_Pos 2 /*!< ITM TCR: SYNCENA Position */ +#define ITM_TCR_SYNCENA_Msk (1ul << ITM_TCR_SYNCENA_Pos) /*!< ITM TCR: SYNCENA Mask */ + +#define ITM_TCR_TSENA_Pos 1 /*!< ITM TCR: TSENA Position */ +#define ITM_TCR_TSENA_Msk (1ul << ITM_TCR_TSENA_Pos) /*!< ITM TCR: TSENA Mask */ + +#define ITM_TCR_ITMENA_Pos 0 /*!< ITM TCR: ITM Enable bit Position */ +#define ITM_TCR_ITMENA_Msk (1ul << ITM_TCR_ITMENA_Pos) /*!< ITM TCR: ITM Enable bit Mask */ + +/* ITM Integration Write Register Definitions */ +#define ITM_IWR_ATVALIDM_Pos 0 /*!< ITM IWR: ATVALIDM Position */ +#define ITM_IWR_ATVALIDM_Msk (1ul << ITM_IWR_ATVALIDM_Pos) /*!< ITM IWR: ATVALIDM Mask */ + +/* ITM Integration Read Register Definitions */ +#define ITM_IRR_ATREADYM_Pos 0 /*!< ITM IRR: ATREADYM Position */ +#define ITM_IRR_ATREADYM_Msk (1ul << ITM_IRR_ATREADYM_Pos) /*!< ITM IRR: ATREADYM Mask */ + +/* ITM Integration Mode Control Register Definitions */ +#define ITM_IMCR_INTEGRATION_Pos 0 /*!< ITM IMCR: INTEGRATION Position */ +#define ITM_IMCR_INTEGRATION_Msk (1ul << ITM_IMCR_INTEGRATION_Pos) /*!< ITM IMCR: INTEGRATION Mask */ + +/* ITM Lock Status Register Definitions */ +#define ITM_LSR_ByteAcc_Pos 2 /*!< ITM LSR: ByteAcc Position */ +#define ITM_LSR_ByteAcc_Msk (1ul << ITM_LSR_ByteAcc_Pos) /*!< ITM LSR: ByteAcc Mask */ + +#define ITM_LSR_Access_Pos 1 /*!< ITM LSR: Access Position */ +#define ITM_LSR_Access_Msk (1ul << ITM_LSR_Access_Pos) /*!< ITM LSR: Access Mask */ + +#define ITM_LSR_Present_Pos 0 /*!< ITM LSR: Present Position */ +#define ITM_LSR_Present_Msk (1ul << ITM_LSR_Present_Pos) /*!< ITM LSR: Present Mask */ +/*@}*/ /* end of group CMSIS_CM3_ITM */ + + +/** @addtogroup CMSIS_CM3_InterruptType CMSIS CM3 Interrupt Type + memory mapped structure for Interrupt Type + @{ + */ +typedef struct +{ + uint32_t RESERVED0; + __I uint32_t ICTR; /*!< Offset: 0x04 Interrupt Control Type Register */ +#if ((defined __CM3_REV) && (__CM3_REV >= 0x200)) + __IO uint32_t ACTLR; /*!< Offset: 0x08 Auxiliary Control Register */ +#else + uint32_t RESERVED1; +#endif +} InterruptType_Type; + +/* Interrupt Controller Type Register Definitions */ +#define InterruptType_ICTR_INTLINESNUM_Pos 0 /*!< InterruptType ICTR: INTLINESNUM Position */ +#define InterruptType_ICTR_INTLINESNUM_Msk (0x1Ful << InterruptType_ICTR_INTLINESNUM_Pos) /*!< InterruptType ICTR: INTLINESNUM Mask */ + +/* Auxiliary Control Register Definitions */ +#define InterruptType_ACTLR_DISFOLD_Pos 2 /*!< InterruptType ACTLR: DISFOLD Position */ +#define InterruptType_ACTLR_DISFOLD_Msk (1ul << InterruptType_ACTLR_DISFOLD_Pos) /*!< InterruptType ACTLR: DISFOLD Mask */ + +#define InterruptType_ACTLR_DISDEFWBUF_Pos 1 /*!< InterruptType ACTLR: DISDEFWBUF Position */ +#define InterruptType_ACTLR_DISDEFWBUF_Msk (1ul << InterruptType_ACTLR_DISDEFWBUF_Pos) /*!< InterruptType ACTLR: DISDEFWBUF Mask */ + +#define InterruptType_ACTLR_DISMCYCINT_Pos 0 /*!< InterruptType ACTLR: DISMCYCINT Position */ +#define InterruptType_ACTLR_DISMCYCINT_Msk (1ul << InterruptType_ACTLR_DISMCYCINT_Pos) /*!< InterruptType ACTLR: DISMCYCINT Mask */ +/*@}*/ /* end of group CMSIS_CM3_InterruptType */ + + +#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1) +/** @addtogroup CMSIS_CM3_MPU CMSIS CM3 MPU + memory mapped structure for Memory Protection Unit (MPU) + @{ + */ +typedef struct +{ + __I uint32_t TYPE; /*!< Offset: 0x00 MPU Type Register */ + __IO uint32_t CTRL; /*!< Offset: 0x04 MPU Control Register */ + __IO uint32_t RNR; /*!< Offset: 0x08 MPU Region RNRber Register */ + __IO uint32_t RBAR; /*!< Offset: 0x0C MPU Region Base Address Register */ + __IO uint32_t RASR; /*!< Offset: 0x10 MPU Region Attribute and Size Register */ + __IO uint32_t RBAR_A1; /*!< Offset: 0x14 MPU Alias 1 Region Base Address Register */ + __IO uint32_t RASR_A1; /*!< Offset: 0x18 MPU Alias 1 Region Attribute and Size Register */ + __IO uint32_t RBAR_A2; /*!< Offset: 0x1C MPU Alias 2 Region Base Address Register */ + __IO uint32_t RASR_A2; /*!< Offset: 0x20 MPU Alias 2 Region Attribute and Size Register */ + __IO uint32_t RBAR_A3; /*!< Offset: 0x24 MPU Alias 3 Region Base Address Register */ + __IO uint32_t RASR_A3; /*!< Offset: 0x28 MPU Alias 3 Region Attribute and Size Register */ +} MPU_Type; + +/* MPU Type Register */ +#define MPU_TYPE_IREGION_Pos 16 /*!< MPU TYPE: IREGION Position */ +#define MPU_TYPE_IREGION_Msk (0xFFul << MPU_TYPE_IREGION_Pos) /*!< MPU TYPE: IREGION Mask */ + +#define MPU_TYPE_DREGION_Pos 8 /*!< MPU TYPE: DREGION Position */ +#define MPU_TYPE_DREGION_Msk (0xFFul << MPU_TYPE_DREGION_Pos) /*!< MPU TYPE: DREGION Mask */ + +#define MPU_TYPE_SEPARATE_Pos 0 /*!< MPU TYPE: SEPARATE Position */ +#define MPU_TYPE_SEPARATE_Msk (1ul << MPU_TYPE_SEPARATE_Pos) /*!< MPU TYPE: SEPARATE Mask */ + +/* MPU Control Register */ +#define MPU_CTRL_PRIVDEFENA_Pos 2 /*!< MPU CTRL: PRIVDEFENA Position */ +#define MPU_CTRL_PRIVDEFENA_Msk (1ul << MPU_CTRL_PRIVDEFENA_Pos) /*!< MPU CTRL: PRIVDEFENA Mask */ + +#define MPU_CTRL_HFNMIENA_Pos 1 /*!< MPU CTRL: HFNMIENA Position */ +#define MPU_CTRL_HFNMIENA_Msk (1ul << MPU_CTRL_HFNMIENA_Pos) /*!< MPU CTRL: HFNMIENA Mask */ + +#define MPU_CTRL_ENABLE_Pos 0 /*!< MPU CTRL: ENABLE Position */ +#define MPU_CTRL_ENABLE_Msk (1ul << MPU_CTRL_ENABLE_Pos) /*!< MPU CTRL: ENABLE Mask */ + +/* MPU Region Number Register */ +#define MPU_RNR_REGION_Pos 0 /*!< MPU RNR: REGION Position */ +#define MPU_RNR_REGION_Msk (0xFFul << MPU_RNR_REGION_Pos) /*!< MPU RNR: REGION Mask */ + +/* MPU Region Base Address Register */ +#define MPU_RBAR_ADDR_Pos 5 /*!< MPU RBAR: ADDR Position */ +#define MPU_RBAR_ADDR_Msk (0x7FFFFFFul << MPU_RBAR_ADDR_Pos) /*!< MPU RBAR: ADDR Mask */ + +#define MPU_RBAR_VALID_Pos 4 /*!< MPU RBAR: VALID Position */ +#define MPU_RBAR_VALID_Msk (1ul << MPU_RBAR_VALID_Pos) /*!< MPU RBAR: VALID Mask */ + +#define MPU_RBAR_REGION_Pos 0 /*!< MPU RBAR: REGION Position */ +#define MPU_RBAR_REGION_Msk (0xFul << MPU_RBAR_REGION_Pos) /*!< MPU RBAR: REGION Mask */ + +/* MPU Region Attribute and Size Register */ +#define MPU_RASR_XN_Pos 28 /*!< MPU RASR: XN Position */ +#define MPU_RASR_XN_Msk (1ul << MPU_RASR_XN_Pos) /*!< MPU RASR: XN Mask */ + +#define MPU_RASR_AP_Pos 24 /*!< MPU RASR: AP Position */ +#define MPU_RASR_AP_Msk (7ul << MPU_RASR_AP_Pos) /*!< MPU RASR: AP Mask */ + +#define MPU_RASR_TEX_Pos 19 /*!< MPU RASR: TEX Position */ +#define MPU_RASR_TEX_Msk (7ul << MPU_RASR_TEX_Pos) /*!< MPU RASR: TEX Mask */ + +#define MPU_RASR_S_Pos 18 /*!< MPU RASR: Shareable bit Position */ +#define MPU_RASR_S_Msk (1ul << MPU_RASR_S_Pos) /*!< MPU RASR: Shareable bit Mask */ + +#define MPU_RASR_C_Pos 17 /*!< MPU RASR: Cacheable bit Position */ +#define MPU_RASR_C_Msk (1ul << MPU_RASR_C_Pos) /*!< MPU RASR: Cacheable bit Mask */ + +#define MPU_RASR_B_Pos 16 /*!< MPU RASR: Bufferable bit Position */ +#define MPU_RASR_B_Msk (1ul << MPU_RASR_B_Pos) /*!< MPU RASR: Bufferable bit Mask */ + +#define MPU_RASR_SRD_Pos 8 /*!< MPU RASR: Sub-Region Disable Position */ +#define MPU_RASR_SRD_Msk (0xFFul << MPU_RASR_SRD_Pos) /*!< MPU RASR: Sub-Region Disable Mask */ + +#define MPU_RASR_SIZE_Pos 1 /*!< MPU RASR: Region Size Field Position */ +#define MPU_RASR_SIZE_Msk (0x1Ful << MPU_RASR_SIZE_Pos) /*!< MPU RASR: Region Size Field Mask */ + +#define MPU_RASR_ENA_Pos 0 /*!< MPU RASR: Region enable bit Position */ +#define MPU_RASR_ENA_Msk (0x1Ful << MPU_RASR_ENA_Pos) /*!< MPU RASR: Region enable bit Disable Mask */ + +/*@}*/ /* end of group CMSIS_CM3_MPU */ +#endif + + +/** @addtogroup CMSIS_CM3_CoreDebug CMSIS CM3 Core Debug + memory mapped structure for Core Debug Register + @{ + */ +typedef struct +{ + __IO uint32_t DHCSR; /*!< Offset: 0x00 Debug Halting Control and Status Register */ + __O uint32_t DCRSR; /*!< Offset: 0x04 Debug Core Register Selector Register */ + __IO uint32_t DCRDR; /*!< Offset: 0x08 Debug Core Register Data Register */ + __IO uint32_t DEMCR; /*!< Offset: 0x0C Debug Exception and Monitor Control Register */ +} CoreDebug_Type; + +/* Debug Halting Control and Status Register */ +#define CoreDebug_DHCSR_DBGKEY_Pos 16 /*!< CoreDebug DHCSR: DBGKEY Position */ +#define CoreDebug_DHCSR_DBGKEY_Msk (0xFFFFul << CoreDebug_DHCSR_DBGKEY_Pos) /*!< CoreDebug DHCSR: DBGKEY Mask */ + +#define CoreDebug_DHCSR_S_RESET_ST_Pos 25 /*!< CoreDebug DHCSR: S_RESET_ST Position */ +#define CoreDebug_DHCSR_S_RESET_ST_Msk (1ul << CoreDebug_DHCSR_S_RESET_ST_Pos) /*!< CoreDebug DHCSR: S_RESET_ST Mask */ + +#define CoreDebug_DHCSR_S_RETIRE_ST_Pos 24 /*!< CoreDebug DHCSR: S_RETIRE_ST Position */ +#define CoreDebug_DHCSR_S_RETIRE_ST_Msk (1ul << CoreDebug_DHCSR_S_RETIRE_ST_Pos) /*!< CoreDebug DHCSR: S_RETIRE_ST Mask */ + +#define CoreDebug_DHCSR_S_LOCKUP_Pos 19 /*!< CoreDebug DHCSR: S_LOCKUP Position */ +#define CoreDebug_DHCSR_S_LOCKUP_Msk (1ul << CoreDebug_DHCSR_S_LOCKUP_Pos) /*!< CoreDebug DHCSR: S_LOCKUP Mask */ + +#define CoreDebug_DHCSR_S_SLEEP_Pos 18 /*!< CoreDebug DHCSR: S_SLEEP Position */ +#define CoreDebug_DHCSR_S_SLEEP_Msk (1ul << CoreDebug_DHCSR_S_SLEEP_Pos) /*!< CoreDebug DHCSR: S_SLEEP Mask */ + +#define CoreDebug_DHCSR_S_HALT_Pos 17 /*!< CoreDebug DHCSR: S_HALT Position */ +#define CoreDebug_DHCSR_S_HALT_Msk (1ul << CoreDebug_DHCSR_S_HALT_Pos) /*!< CoreDebug DHCSR: S_HALT Mask */ + +#define CoreDebug_DHCSR_S_REGRDY_Pos 16 /*!< CoreDebug DHCSR: S_REGRDY Position */ +#define CoreDebug_DHCSR_S_REGRDY_Msk (1ul << CoreDebug_DHCSR_S_REGRDY_Pos) /*!< CoreDebug DHCSR: S_REGRDY Mask */ + +#define CoreDebug_DHCSR_C_SNAPSTALL_Pos 5 /*!< CoreDebug DHCSR: C_SNAPSTALL Position */ +#define CoreDebug_DHCSR_C_SNAPSTALL_Msk (1ul << CoreDebug_DHCSR_C_SNAPSTALL_Pos) /*!< CoreDebug DHCSR: C_SNAPSTALL Mask */ + +#define CoreDebug_DHCSR_C_MASKINTS_Pos 3 /*!< CoreDebug DHCSR: C_MASKINTS Position */ +#define CoreDebug_DHCSR_C_MASKINTS_Msk (1ul << CoreDebug_DHCSR_C_MASKINTS_Pos) /*!< CoreDebug DHCSR: C_MASKINTS Mask */ + +#define CoreDebug_DHCSR_C_STEP_Pos 2 /*!< CoreDebug DHCSR: C_STEP Position */ +#define CoreDebug_DHCSR_C_STEP_Msk (1ul << CoreDebug_DHCSR_C_STEP_Pos) /*!< CoreDebug DHCSR: C_STEP Mask */ + +#define CoreDebug_DHCSR_C_HALT_Pos 1 /*!< CoreDebug DHCSR: C_HALT Position */ +#define CoreDebug_DHCSR_C_HALT_Msk (1ul << CoreDebug_DHCSR_C_HALT_Pos) /*!< CoreDebug DHCSR: C_HALT Mask */ + +#define CoreDebug_DHCSR_C_DEBUGEN_Pos 0 /*!< CoreDebug DHCSR: C_DEBUGEN Position */ +#define CoreDebug_DHCSR_C_DEBUGEN_Msk (1ul << CoreDebug_DHCSR_C_DEBUGEN_Pos) /*!< CoreDebug DHCSR: C_DEBUGEN Mask */ + +/* Debug Core Register Selector Register */ +#define CoreDebug_DCRSR_REGWnR_Pos 16 /*!< CoreDebug DCRSR: REGWnR Position */ +#define CoreDebug_DCRSR_REGWnR_Msk (1ul << CoreDebug_DCRSR_REGWnR_Pos) /*!< CoreDebug DCRSR: REGWnR Mask */ + +#define CoreDebug_DCRSR_REGSEL_Pos 0 /*!< CoreDebug DCRSR: REGSEL Position */ +#define CoreDebug_DCRSR_REGSEL_Msk (0x1Ful << CoreDebug_DCRSR_REGSEL_Pos) /*!< CoreDebug DCRSR: REGSEL Mask */ + +/* Debug Exception and Monitor Control Register */ +#define CoreDebug_DEMCR_TRCENA_Pos 24 /*!< CoreDebug DEMCR: TRCENA Position */ +#define CoreDebug_DEMCR_TRCENA_Msk (1ul << CoreDebug_DEMCR_TRCENA_Pos) /*!< CoreDebug DEMCR: TRCENA Mask */ + +#define CoreDebug_DEMCR_MON_REQ_Pos 19 /*!< CoreDebug DEMCR: MON_REQ Position */ +#define CoreDebug_DEMCR_MON_REQ_Msk (1ul << CoreDebug_DEMCR_MON_REQ_Pos) /*!< CoreDebug DEMCR: MON_REQ Mask */ + +#define CoreDebug_DEMCR_MON_STEP_Pos 18 /*!< CoreDebug DEMCR: MON_STEP Position */ +#define CoreDebug_DEMCR_MON_STEP_Msk (1ul << CoreDebug_DEMCR_MON_STEP_Pos) /*!< CoreDebug DEMCR: MON_STEP Mask */ + +#define CoreDebug_DEMCR_MON_PEND_Pos 17 /*!< CoreDebug DEMCR: MON_PEND Position */ +#define CoreDebug_DEMCR_MON_PEND_Msk (1ul << CoreDebug_DEMCR_MON_PEND_Pos) /*!< CoreDebug DEMCR: MON_PEND Mask */ + +#define CoreDebug_DEMCR_MON_EN_Pos 16 /*!< CoreDebug DEMCR: MON_EN Position */ +#define CoreDebug_DEMCR_MON_EN_Msk (1ul << CoreDebug_DEMCR_MON_EN_Pos) /*!< CoreDebug DEMCR: MON_EN Mask */ + +#define CoreDebug_DEMCR_VC_HARDERR_Pos 10 /*!< CoreDebug DEMCR: VC_HARDERR Position */ +#define CoreDebug_DEMCR_VC_HARDERR_Msk (1ul << CoreDebug_DEMCR_VC_HARDERR_Pos) /*!< CoreDebug DEMCR: VC_HARDERR Mask */ + +#define CoreDebug_DEMCR_VC_INTERR_Pos 9 /*!< CoreDebug DEMCR: VC_INTERR Position */ +#define CoreDebug_DEMCR_VC_INTERR_Msk (1ul << CoreDebug_DEMCR_VC_INTERR_Pos) /*!< CoreDebug DEMCR: VC_INTERR Mask */ + +#define CoreDebug_DEMCR_VC_BUSERR_Pos 8 /*!< CoreDebug DEMCR: VC_BUSERR Position */ +#define CoreDebug_DEMCR_VC_BUSERR_Msk (1ul << CoreDebug_DEMCR_VC_BUSERR_Pos) /*!< CoreDebug DEMCR: VC_BUSERR Mask */ + +#define CoreDebug_DEMCR_VC_STATERR_Pos 7 /*!< CoreDebug DEMCR: VC_STATERR Position */ +#define CoreDebug_DEMCR_VC_STATERR_Msk (1ul << CoreDebug_DEMCR_VC_STATERR_Pos) /*!< CoreDebug DEMCR: VC_STATERR Mask */ + +#define CoreDebug_DEMCR_VC_CHKERR_Pos 6 /*!< CoreDebug DEMCR: VC_CHKERR Position */ +#define CoreDebug_DEMCR_VC_CHKERR_Msk (1ul << CoreDebug_DEMCR_VC_CHKERR_Pos) /*!< CoreDebug DEMCR: VC_CHKERR Mask */ + +#define CoreDebug_DEMCR_VC_NOCPERR_Pos 5 /*!< CoreDebug DEMCR: VC_NOCPERR Position */ +#define CoreDebug_DEMCR_VC_NOCPERR_Msk (1ul << CoreDebug_DEMCR_VC_NOCPERR_Pos) /*!< CoreDebug DEMCR: VC_NOCPERR Mask */ + +#define CoreDebug_DEMCR_VC_MMERR_Pos 4 /*!< CoreDebug DEMCR: VC_MMERR Position */ +#define CoreDebug_DEMCR_VC_MMERR_Msk (1ul << CoreDebug_DEMCR_VC_MMERR_Pos) /*!< CoreDebug DEMCR: VC_MMERR Mask */ + +#define CoreDebug_DEMCR_VC_CORERESET_Pos 0 /*!< CoreDebug DEMCR: VC_CORERESET Position */ +#define CoreDebug_DEMCR_VC_CORERESET_Msk (1ul << CoreDebug_DEMCR_VC_CORERESET_Pos) /*!< CoreDebug DEMCR: VC_CORERESET Mask */ +/*@}*/ /* end of group CMSIS_CM3_CoreDebug */ + + +/* Memory mapping of Cortex-M3 Hardware */ +#define SCS_BASE (0xE000E000) /*!< System Control Space Base Address */ +#define ITM_BASE (0xE0000000) /*!< ITM Base Address */ +#define CoreDebug_BASE (0xE000EDF0) /*!< Core Debug Base Address */ +#define SysTick_BASE (SCS_BASE + 0x0010) /*!< SysTick Base Address */ +#define NVIC_BASE (SCS_BASE + 0x0100) /*!< NVIC Base Address */ +#define SCB_BASE (SCS_BASE + 0x0D00) /*!< System Control Block Base Address */ + +#define InterruptType ((InterruptType_Type *) SCS_BASE) /*!< Interrupt Type Register */ +#define SCB ((SCB_Type *) SCB_BASE) /*!< SCB configuration struct */ +#define SysTick ((SysTick_Type *) SysTick_BASE) /*!< SysTick configuration struct */ +#define NVIC ((NVIC_Type *) NVIC_BASE) /*!< NVIC configuration struct */ +#define ITM ((ITM_Type *) ITM_BASE) /*!< ITM configuration struct */ +#define CoreDebug ((CoreDebug_Type *) CoreDebug_BASE) /*!< Core Debug configuration struct */ + +#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1) + #define MPU_BASE (SCS_BASE + 0x0D90) /*!< Memory Protection Unit */ + #define MPU ((MPU_Type*) MPU_BASE) /*!< Memory Protection Unit */ +#endif + +/*@}*/ /* end of group CMSIS_CM3_core_register */ + + +/******************************************************************************* + * Hardware Abstraction Layer + ******************************************************************************/ + +#if defined ( __CC_ARM ) + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + +#elif defined ( __ICCARM__ ) + #define __ASM __asm /*!< asm keyword for IAR Compiler */ + #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for GNU Compiler */ + #define __INLINE inline /*!< inline keyword for GNU Compiler */ + +#elif defined ( __TASKING__ ) + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + +#endif + + +/* ################### Compiler specific Intrinsics ########################### */ + +#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ +/* ARM armcc specific functions */ + +#define __enable_fault_irq __enable_fiq +#define __disable_fault_irq __disable_fiq + +#define __NOP __nop +#define __WFI __wfi +#define __WFE __wfe +#define __SEV __sev +#define __ISB() __isb(0) +#define __DSB() __dsb(0) +#define __DMB() __dmb(0) +#define __REV __rev +#define __RBIT __rbit +#define __LDREXB(ptr) ((unsigned char ) __ldrex(ptr)) +#define __LDREXH(ptr) ((unsigned short) __ldrex(ptr)) +#define __LDREXW(ptr) ((unsigned int ) __ldrex(ptr)) +#define __STREXB(value, ptr) __strex(value, ptr) +#define __STREXH(value, ptr) __strex(value, ptr) +#define __STREXW(value, ptr) __strex(value, ptr) + + +/* intrinsic unsigned long long __ldrexd(volatile void *ptr) */ +/* intrinsic int __strexd(unsigned long long val, volatile void *ptr) */ +/* intrinsic void __enable_irq(); */ +/* intrinsic void __disable_irq(); */ + + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +extern void __set_PSP(uint32_t topOfProcStack); + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +extern int32_t __REVSH(int16_t value); + + +#if (__ARMCC_VERSION < 400000) + +/** + * @brief Remove the exclusive lock created by ldrex + * + * Removes the exclusive lock which is created by ldrex. + */ +extern void __CLREX(void); + +/** + * @brief Return the Base Priority value + * + * @return BasePriority + * + * Return the content of the base priority register + */ +extern uint32_t __get_BASEPRI(void); + +/** + * @brief Set the Base Priority value + * + * @param basePri BasePriority + * + * Set the base priority register + */ +extern void __set_BASEPRI(uint32_t basePri); + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +extern uint32_t __get_PRIMASK(void); + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +extern void __set_PRIMASK(uint32_t priMask); + +/** + * @brief Return the Fault Mask value + * + * @return FaultMask + * + * Return the content of the fault mask register + */ +extern uint32_t __get_FAULTMASK(void); + +/** + * @brief Set the Fault Mask value + * + * @param faultMask faultMask value + * + * Set the fault mask register + */ +extern void __set_FAULTMASK(uint32_t faultMask); + +/** + * @brief Return the Control Register value + * + * @return Control value + * + * Return the content of the control register + */ +extern uint32_t __get_CONTROL(void); + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +extern void __set_CONTROL(uint32_t control); + +#else /* (__ARMCC_VERSION >= 400000) */ + +/** + * @brief Remove the exclusive lock created by ldrex + * + * Removes the exclusive lock which is created by ldrex. + */ +#define __CLREX __clrex + +/** + * @brief Return the Base Priority value + * + * @return BasePriority + * + * Return the content of the base priority register + */ +static __INLINE uint32_t __get_BASEPRI(void) +{ + register uint32_t __regBasePri __ASM("basepri"); + return(__regBasePri); +} + +/** + * @brief Set the Base Priority value + * + * @param basePri BasePriority + * + * Set the base priority register + */ +static __INLINE void __set_BASEPRI(uint32_t basePri) +{ + register uint32_t __regBasePri __ASM("basepri"); + __regBasePri = (basePri & 0xff); +} + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +static __INLINE uint32_t __get_PRIMASK(void) +{ + register uint32_t __regPriMask __ASM("primask"); + return(__regPriMask); +} + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +static __INLINE void __set_PRIMASK(uint32_t priMask) +{ + register uint32_t __regPriMask __ASM("primask"); + __regPriMask = (priMask); +} + +/** + * @brief Return the Fault Mask value + * + * @return FaultMask + * + * Return the content of the fault mask register + */ +static __INLINE uint32_t __get_FAULTMASK(void) +{ + register uint32_t __regFaultMask __ASM("faultmask"); + return(__regFaultMask); +} + +/** + * @brief Set the Fault Mask value + * + * @param faultMask faultMask value + * + * Set the fault mask register + */ +static __INLINE void __set_FAULTMASK(uint32_t faultMask) +{ + register uint32_t __regFaultMask __ASM("faultmask"); + __regFaultMask = (faultMask & 1); +} + +/** + * @brief Return the Control Register value + * + * @return Control value + * + * Return the content of the control register + */ +static __INLINE uint32_t __get_CONTROL(void) +{ + register uint32_t __regControl __ASM("control"); + return(__regControl); +} + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +static __INLINE void __set_CONTROL(uint32_t control) +{ + register uint32_t __regControl __ASM("control"); + __regControl = control; +} + +#endif /* __ARMCC_VERSION */ + + + +#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ +/* IAR iccarm specific functions */ + +#define __enable_irq __enable_interrupt /*!< global Interrupt enable */ +#define __disable_irq __disable_interrupt /*!< global Interrupt disable */ + +static __INLINE void __enable_fault_irq() { __ASM ("cpsie f"); } +static __INLINE void __disable_fault_irq() { __ASM ("cpsid f"); } + +#define __NOP __no_operation /*!< no operation intrinsic in IAR Compiler */ +static __INLINE void __WFI() { __ASM ("wfi"); } +static __INLINE void __WFE() { __ASM ("wfe"); } +static __INLINE void __SEV() { __ASM ("sev"); } +static __INLINE void __CLREX() { __ASM ("clrex"); } + +/* intrinsic void __ISB(void) */ +/* intrinsic void __DSB(void) */ +/* intrinsic void __DMB(void) */ +/* intrinsic void __set_PRIMASK(); */ +/* intrinsic void __get_PRIMASK(); */ +/* intrinsic void __set_FAULTMASK(); */ +/* intrinsic void __get_FAULTMASK(); */ +/* intrinsic uint32_t __REV(uint32_t value); */ +/* intrinsic uint32_t __REVSH(uint32_t value); */ +/* intrinsic unsigned long __STREX(unsigned long, unsigned long); */ +/* intrinsic unsigned long __LDREX(unsigned long *); */ + + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +extern void __set_PSP(uint32_t topOfProcStack); + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/** + * @brief Reverse bit order of value + * + * @param value value to reverse + * @return reversed value + * + * Reverse bit order of value + */ +extern uint32_t __RBIT(uint32_t value); + +/** + * @brief LDR Exclusive (8 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 8 bit values) + */ +extern uint8_t __LDREXB(uint8_t *addr); + +/** + * @brief LDR Exclusive (16 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 16 bit values + */ +extern uint16_t __LDREXH(uint16_t *addr); + +/** + * @brief LDR Exclusive (32 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 32 bit values + */ +extern uint32_t __LDREXW(uint32_t *addr); + +/** + * @brief STR Exclusive (8 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 8 bit values + */ +extern uint32_t __STREXB(uint8_t value, uint8_t *addr); + +/** + * @brief STR Exclusive (16 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 16 bit values + */ +extern uint32_t __STREXH(uint16_t value, uint16_t *addr); + +/** + * @brief STR Exclusive (32 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 32 bit values + */ +extern uint32_t __STREXW(uint32_t value, uint32_t *addr); + + + +#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ +/* GNU gcc specific functions */ + +static __INLINE void __enable_irq(void) { __ASM volatile ("cpsie i"); } +static __INLINE void __disable_irq(void) { __ASM volatile ("cpsid i"); } + +static __INLINE void __enable_fault_irq(void) { __ASM volatile ("cpsie f"); } +static __INLINE void __disable_fault_irq(void) { __ASM volatile ("cpsid f"); } + +static __INLINE void __NOP(void) { __ASM volatile ("nop"); } +static __INLINE void __WFI(void) { __ASM volatile ("wfi"); } +static __INLINE void __WFE(void) { __ASM volatile ("wfe"); } +static __INLINE void __SEV(void) { __ASM volatile ("sev"); } +static __INLINE void __ISB(void) { __ASM volatile ("isb"); } +static __INLINE void __DSB(void) { __ASM volatile ("dsb"); } +static __INLINE void __DMB(void) { __ASM volatile ("dmb"); } +static __INLINE void __CLREX(void) { __ASM volatile ("clrex"); } + + +/** + * @brief Return the Process Stack Pointer + * + * @return ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param topOfProcStack Process Stack Pointer + * + * Assign the value ProcessStackPointer to the MSP + * (process stack pointer) Cortex processor register + */ +extern void __set_PSP(uint32_t topOfProcStack); + +/** + * @brief Return the Main Stack Pointer + * + * @return Main Stack Pointer + * + * Return the current value of the MSP (main stack pointer) + * Cortex processor register + */ +extern uint32_t __get_MSP(void); + +/** + * @brief Set the Main Stack Pointer + * + * @param topOfMainStack Main Stack Pointer + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Return the Base Priority value + * + * @return BasePriority + * + * Return the content of the base priority register + */ +extern uint32_t __get_BASEPRI(void); + +/** + * @brief Set the Base Priority value + * + * @param basePri BasePriority + * + * Set the base priority register + */ +extern void __set_BASEPRI(uint32_t basePri); + +/** + * @brief Return the Priority Mask value + * + * @return PriMask + * + * Return state of the priority mask bit from the priority mask register + */ +extern uint32_t __get_PRIMASK(void); + +/** + * @brief Set the Priority Mask value + * + * @param priMask PriMask + * + * Set the priority mask bit in the priority mask register + */ +extern void __set_PRIMASK(uint32_t priMask); + +/** + * @brief Return the Fault Mask value + * + * @return FaultMask + * + * Return the content of the fault mask register + */ +extern uint32_t __get_FAULTMASK(void); + +/** + * @brief Set the Fault Mask value + * + * @param faultMask faultMask value + * + * Set the fault mask register + */ +extern void __set_FAULTMASK(uint32_t faultMask); + +/** + * @brief Return the Control Register value +* +* @return Control value + * + * Return the content of the control register + */ +extern uint32_t __get_CONTROL(void); + +/** + * @brief Set the Control Register value + * + * @param control Control value + * + * Set the control register + */ +extern void __set_CONTROL(uint32_t control); + +/** + * @brief Reverse byte order in integer value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in integer value + */ +extern uint32_t __REV(uint32_t value); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/** + * @brief Reverse byte order in signed short value with sign extension to integer + * + * @param value value to reverse + * @return reversed value + * + * Reverse byte order in signed short value with sign extension to integer + */ +extern int32_t __REVSH(int16_t value); + +/** + * @brief Reverse bit order of value + * + * @param value value to reverse + * @return reversed value + * + * Reverse bit order of value + */ +extern uint32_t __RBIT(uint32_t value); + +/** + * @brief LDR Exclusive (8 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 8 bit value + */ +extern uint8_t __LDREXB(uint8_t *addr); + +/** + * @brief LDR Exclusive (16 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 16 bit values + */ +extern uint16_t __LDREXH(uint16_t *addr); + +/** + * @brief LDR Exclusive (32 bit) + * + * @param *addr address pointer + * @return value of (*address) + * + * Exclusive LDR command for 32 bit values + */ +extern uint32_t __LDREXW(uint32_t *addr); + +/** + * @brief STR Exclusive (8 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 8 bit values + */ +extern uint32_t __STREXB(uint8_t value, uint8_t *addr); + +/** + * @brief STR Exclusive (16 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 16 bit values + */ +extern uint32_t __STREXH(uint16_t value, uint16_t *addr); + +/** + * @brief STR Exclusive (32 bit) + * + * @param value value to store + * @param *addr address pointer + * @return successful / failed + * + * Exclusive STR command for 32 bit values + */ +extern uint32_t __STREXW(uint32_t value, uint32_t *addr); + + +#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/ +/* TASKING carm specific functions */ + +/* + * The CMSIS functions have been implemented as intrinsics in the compiler. + * Please use "carm -?i" to get an up to date list of all instrinsics, + * Including the CMSIS ones. + */ + +#endif + + +/** @addtogroup CMSIS_CM3_Core_FunctionInterface CMSIS CM3 Core Function Interface + Core Function Interface containing: + - Core NVIC Functions + - Core SysTick Functions + - Core Reset Functions +*/ +/*@{*/ + +/* ########################## NVIC functions #################################### */ + +/** + * @brief Set the Priority Grouping in NVIC Interrupt Controller + * + * @param PriorityGroup is priority grouping field + * + * Set the priority grouping field using the required unlock sequence. + * The parameter priority_grouping is assigned to the field + * SCB->AIRCR [10:8] PRIGROUP field. Only values from 0..7 are used. + * In case of a conflict between priority grouping and available + * priority bits (__NVIC_PRIO_BITS) the smallest possible priority group is set. + */ +static __INLINE void NVIC_SetPriorityGrouping(uint32_t PriorityGroup) +{ + uint32_t reg_value; + uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ + + reg_value = SCB->AIRCR; /* read old register configuration */ + reg_value &= ~(SCB_AIRCR_VECTKEY_Msk | SCB_AIRCR_PRIGROUP_Msk); /* clear bits to change */ + reg_value = (reg_value | + (0x5FA << SCB_AIRCR_VECTKEY_Pos) | + (PriorityGroupTmp << 8)); /* Insert write key and priorty group */ + SCB->AIRCR = reg_value; +} + +/** + * @brief Get the Priority Grouping from NVIC Interrupt Controller + * + * @return priority grouping field + * + * Get the priority grouping from NVIC Interrupt Controller. + * priority grouping is SCB->AIRCR [10:8] PRIGROUP field. + */ +static __INLINE uint32_t NVIC_GetPriorityGrouping(void) +{ + return ((SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk) >> SCB_AIRCR_PRIGROUP_Pos); /* read priority grouping field */ +} + +/** + * @brief Enable Interrupt in NVIC Interrupt Controller + * + * @param IRQn The positive number of the external interrupt to enable + * + * Enable a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_EnableIRQ(IRQn_Type IRQn) +{ + NVIC->ISER[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* enable interrupt */ +} + +/** + * @brief Disable the interrupt line for external interrupt specified + * + * @param IRQn The positive number of the external interrupt to disable + * + * Disable a device specific interupt in the NVIC interrupt controller. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_DisableIRQ(IRQn_Type IRQn) +{ + NVIC->ICER[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* disable interrupt */ +} + +/** + * @brief Read the interrupt pending bit for a device specific interrupt source + * + * @param IRQn The number of the device specifc interrupt + * @return 1 = interrupt pending, 0 = interrupt not pending + * + * Read the pending register in NVIC and return 1 if its status is pending, + * otherwise it returns 0 + */ +static __INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) +{ + return((uint32_t) ((NVIC->ISPR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if pending else 0 */ +} + +/** + * @brief Set the pending bit for an external interrupt + * + * @param IRQn The number of the interrupt for set pending + * + * Set the pending bit for the specified interrupt. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) +{ + NVIC->ISPR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* set interrupt pending */ +} + +/** + * @brief Clear the pending bit for an external interrupt + * + * @param IRQn The number of the interrupt for clear pending + * + * Clear the pending bit for the specified interrupt. + * The interrupt number cannot be a negative value. + */ +static __INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn) +{ + NVIC->ICPR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */ +} + +/** + * @brief Read the active bit for an external interrupt + * + * @param IRQn The number of the interrupt for read active bit + * @return 1 = interrupt active, 0 = interrupt not active + * + * Read the active register in NVIC and returns 1 if its status is active, + * otherwise it returns 0. + */ +static __INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn) +{ + return((uint32_t)((NVIC->IABR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if active else 0 */ +} + +/** + * @brief Set the priority for an interrupt + * + * @param IRQn The number of the interrupt for set priority + * @param priority The priority to set + * + * Set the priority for the specified interrupt. The interrupt + * number can be positive to specify an external (device specific) + * interrupt, or negative to specify an internal (core) interrupt. + * + * Note: The priority cannot be set for every core interrupt. + */ +static __INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority) +{ + if(IRQn < 0) { + SCB->SHP[((uint32_t)(IRQn) & 0xF)-4] = ((priority << (8 - __NVIC_PRIO_BITS)) & 0xff); } /* set Priority for Cortex-M3 System Interrupts */ + else { + NVIC->IP[(uint32_t)(IRQn)] = ((priority << (8 - __NVIC_PRIO_BITS)) & 0xff); } /* set Priority for device specific Interrupts */ +} + +/** + * @brief Read the priority for an interrupt + * + * @param IRQn The number of the interrupt for get priority + * @return The priority for the interrupt + * + * Read the priority for the specified interrupt. The interrupt + * number can be positive to specify an external (device specific) + * interrupt, or negative to specify an internal (core) interrupt. + * + * The returned priority value is automatically aligned to the implemented + * priority bits of the microcontroller. + * + * Note: The priority cannot be set for every core interrupt. + */ +static __INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn) +{ + + if(IRQn < 0) { + return((uint32_t)(SCB->SHP[((uint32_t)(IRQn) & 0xF)-4] >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M3 system interrupts */ + else { + return((uint32_t)(NVIC->IP[(uint32_t)(IRQn)] >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */ +} + + +/** + * @brief Encode the priority for an interrupt + * + * @param PriorityGroup The used priority group + * @param PreemptPriority The preemptive priority value (starting from 0) + * @param SubPriority The sub priority value (starting from 0) + * @return The encoded priority for the interrupt + * + * Encode the priority for an interrupt with the given priority group, + * preemptive priority value and sub priority value. + * In case of a conflict between priority grouping and available + * priority bits (__NVIC_PRIO_BITS) the samllest possible priority group is set. + * + * The returned priority value can be used for NVIC_SetPriority(...) function + */ +static __INLINE uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority) +{ + uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ + uint32_t PreemptPriorityBits; + uint32_t SubPriorityBits; + + PreemptPriorityBits = ((7 - PriorityGroupTmp) > __NVIC_PRIO_BITS) ? __NVIC_PRIO_BITS : 7 - PriorityGroupTmp; + SubPriorityBits = ((PriorityGroupTmp + __NVIC_PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + __NVIC_PRIO_BITS; + + return ( + ((PreemptPriority & ((1 << (PreemptPriorityBits)) - 1)) << SubPriorityBits) | + ((SubPriority & ((1 << (SubPriorityBits )) - 1))) + ); +} + + +/** + * @brief Decode the priority of an interrupt + * + * @param Priority The priority for the interrupt + * @param PriorityGroup The used priority group + * @param pPreemptPriority The preemptive priority value (starting from 0) + * @param pSubPriority The sub priority value (starting from 0) + * + * Decode an interrupt priority value with the given priority group to + * preemptive priority value and sub priority value. + * In case of a conflict between priority grouping and available + * priority bits (__NVIC_PRIO_BITS) the samllest possible priority group is set. + * + * The priority value can be retrieved with NVIC_GetPriority(...) function + */ +static __INLINE void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority) +{ + uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ + uint32_t PreemptPriorityBits; + uint32_t SubPriorityBits; + + PreemptPriorityBits = ((7 - PriorityGroupTmp) > __NVIC_PRIO_BITS) ? __NVIC_PRIO_BITS : 7 - PriorityGroupTmp; + SubPriorityBits = ((PriorityGroupTmp + __NVIC_PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + __NVIC_PRIO_BITS; + + *pPreemptPriority = (Priority >> SubPriorityBits) & ((1 << (PreemptPriorityBits)) - 1); + *pSubPriority = (Priority ) & ((1 << (SubPriorityBits )) - 1); +} + + + +/* ################################## SysTick function ############################################ */ + +#if (!defined (__Vendor_SysTickConfig)) || (__Vendor_SysTickConfig == 0) + +/** + * @brief Initialize and start the SysTick counter and its interrupt. + * + * @param ticks number of ticks between two interrupts + * @return 1 = failed, 0 = successful + * + * Initialise the system tick timer and its interrupt and start the + * system tick timer / counter in free running mode to generate + * periodical interrupts. + */ +static __INLINE uint32_t SysTick_Config(uint32_t ticks) +{ + if (ticks > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */ + + SysTick->LOAD = (ticks & SysTick_LOAD_RELOAD_Msk) - 1; /* set reload register */ + NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Cortex-M0 System Interrupts */ + SysTick->VAL = 0; /* Load the SysTick Counter Value */ + SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | + SysTick_CTRL_TICKINT_Msk | + SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */ + return (0); /* Function successful */ +} + +#endif + + + + +/* ################################## Reset function ############################################ */ + +/** + * @brief Initiate a system reset request. + * + * Initiate a system reset request to reset the MCU + */ +static __INLINE void NVIC_SystemReset(void) +{ + SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) | + (SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk) | + SCB_AIRCR_SYSRESETREQ_Msk); /* Keep priority group unchanged */ + __DSB(); /* Ensure completion of memory access */ + while(1); /* wait until reset */ +} + +/*@}*/ /* end of group CMSIS_CM3_Core_FunctionInterface */ + + + +/* ##################################### Debug In/Output function ########################################### */ + +/** @addtogroup CMSIS_CM3_CoreDebugInterface CMSIS CM3 Core Debug Interface + Core Debug Interface containing: + - Core Debug Receive / Transmit Functions + - Core Debug Defines + - Core Debug Variables +*/ +/*@{*/ + +extern volatile int ITM_RxBuffer; /*!< variable to receive characters */ +#define ITM_RXBUFFER_EMPTY 0x5AA55AA5 /*!< value identifying ITM_RxBuffer is ready for next character */ + + +/** + * @brief Outputs a character via the ITM channel 0 + * + * @param ch character to output + * @return character to output + * + * The function outputs a character via the ITM channel 0. + * The function returns when no debugger is connected that has booked the output. + * It is blocking when a debugger is connected, but the previous character send is not transmitted. + */ +static __INLINE uint32_t ITM_SendChar (uint32_t ch) +{ + if ((CoreDebug->DEMCR & CoreDebug_DEMCR_TRCENA_Msk) && /* Trace enabled */ + (ITM->TCR & ITM_TCR_ITMENA_Msk) && /* ITM enabled */ + (ITM->TER & (1ul << 0) ) ) /* ITM Port #0 enabled */ + { + while (ITM->PORT[0].u32 == 0); + ITM->PORT[0].u8 = (uint8_t) ch; + } + return (ch); +} + + +/** + * @brief Inputs a character via variable ITM_RxBuffer + * + * @return received character, -1 = no character received + * + * The function inputs a character via variable ITM_RxBuffer. + * The function returns when no debugger is connected that has booked the output. + * It is blocking when a debugger is connected, but the previous character send is not transmitted. + */ +static __INLINE int ITM_ReceiveChar (void) { + int ch = -1; /* no character available */ + + if (ITM_RxBuffer != ITM_RXBUFFER_EMPTY) { + ch = ITM_RxBuffer; + ITM_RxBuffer = ITM_RXBUFFER_EMPTY; /* ready for next character */ + } + + return (ch); +} + + +/** + * @brief Check if a character via variable ITM_RxBuffer is available + * + * @return 1 = character available, 0 = no character available + * + * The function checks variable ITM_RxBuffer whether a character is available or not. + * The function returns '1' if a character is available and '0' if no character is available. + */ +static __INLINE int ITM_CheckChar (void) { + + if (ITM_RxBuffer == ITM_RXBUFFER_EMPTY) { + return (0); /* no character available */ + } else { + return (1); /* character available */ + } +} + +/*@}*/ /* end of group CMSIS_CM3_core_DebugInterface */ + + +#ifdef __cplusplus +} +#endif + +/*@}*/ /* end of group CMSIS_CM3_core_definitions */ + +#endif /* __CM3_CORE_H__ */ + +/*lint -restore */ diff --git a/os/ports/GCC/ARMCMx/crt0.s b/os/ports/GCC/ARMCMx/crt0.s new file mode 100644 index 000000000..15aed34a6 --- /dev/null +++ b/os/ports/GCC/ARMCMx/crt0.s @@ -0,0 +1,161 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/crt0.s + * @brief Generic ARM Cortex-Mx startup file for ChibiOS/RT. + * @addtogroup ARMCMx_CORE + * @{ + */ + +#include "cmparams.h" + +#if !defined(__DOXYGEN__) + +.set CONTROL_MODE_PRIVILEGED, 0 +.set CONTROL_MODE_UNPRIVILEGED, 1 +.set CONTROL_USE_MSP, 0 +.set CONTROL_USE_PSP, 2 + +.text +.balign 2 +.syntax unified +.thumb + +/* + * Reset handler. + */ +.thumb_func +.global ResetHandler +.weak ResetHandler +ResetHandler: + /* + * Interrupts are globally masked initially. + */ + cpsid i + /* + * Stack pointers initialization. + */ + ldr r0, =__ram_end__ + ldr r1, =__main_stack_size__ + subs r0, r0, r1 + /* + * Note that r0 is the main stack low boundary address and process + * stack initial top address. + */ + msr PSP, r0 + /* + * Early initialization phase, it is empty by default. + */ + bl hwinit0 + /* + * Data initialization. + * NOTE: It assumes that the DATA size is a multiple of 4. + */ + ldr r1, =_textdata + ldr r2, =_data + ldr r3, =_edata +dloop: + cmp r2, r3 +#if CORTEX_MODEL == CORTEX_M0 + bge enddloop + ldr r0, [r1] + str r0, [r2] + adds r1, r1, #4 + adds r2, r2, #4 + b dloop +enddloop: +#else + ittt lo + ldrlo r0, [r1], #4 + strlo r0, [r2], #4 + blo dloop +#endif + /* + * BSS initialization. + * NOTE: It assumes that the BSS size is a multiple of 4. + */ + movs r0, #0 + ldr r1, =_bss_start + ldr r2, =_bss_end +bloop: + cmp r1, r2 +#if CORTEX_MODEL == CORTEX_M0 + bge endbloop + str r0, [r1] + adds r1, r1, #4 + b bloop +endbloop: +#else + itt lo + strlo r0, [r1], #4 + blo bloop +#endif + /* + * Switches to the Process Stack and uses a barrier just to be safe. + */ + movs r0, #CONTROL_MODE_PRIVILEGED | CONTROL_USE_PSP + msr CONTROL, r0 + isb + /* + * Late initialization phase, it is empty by default. + */ + bl hwinit1 + movs r0, #0 + mov r1, r0 + bl main + b MainExitHandler + +/* + * Default main exit code, just a loop. + * It is a weak symbol, the application code can redefine the behavior. + */ +.thumb_func +.global MainExitHandler +.weak MainExitHandler +MainExitHandler: +.loop: b .loop + +/* + * Default early initialization code. It is declared weak in order to be + * replaced by the real initialization code. + * Early initialization is performed just after reset before BSS and DATA + * segments initialization. + */ +.thumb_func +.global hwinit0 +.weak hwinit0 +hwinit0: + bx lr + +/* + * Default late initialization code. It is declared weak in order to be + * replaced by the real initialization code. + * Late initialization is performed after BSS and DATA segments initialization + * and before invoking the main() function. + */ +.thumb_func +.global hwinit1 +.weak hwinit1 +hwinit1: + bx lr + +#endif + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/nvic.c b/os/ports/GCC/ARMCMx/nvic.c new file mode 100644 index 000000000..67551ec1d --- /dev/null +++ b/os/ports/GCC/ARMCMx/nvic.c @@ -0,0 +1,73 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/nvic.c + * @brief Cortex-Mx NVIC support code. + * @addtogroup ARMCMx_NVIC + * @{ + */ + +#include "ch.h" +#include "nvic.h" + +/** + * @brief Sets the priority of an interrupt handler and enables it. + * + * @param n the interrupt number + * @param prio the interrupt priority + * + * @note The parameters are not tested for correctness. + */ +void NVICEnableVector(uint32_t n, uint32_t prio) { + unsigned sh = (n & 3) << 3; + + NVIC_IPR(n >> 2) = (NVIC_IPR(n >> 2) & ~(0xFF << sh)) | (prio << sh); + NVIC_ICPR(n >> 5) = 1 << (n & 0x1F); + NVIC_ISER(n >> 5) = 1 << (n & 0x1F); +} + +/** + * @brief Disables an interrupt handler. + * + * @param n the interrupt number + * + * @note The parameters are not tested for correctness. + */ +void NVICDisableVector(uint32_t n) { + unsigned sh = (n & 3) << 3; + + NVIC_ICER(n >> 5) = 1 << (n & 0x1F); + NVIC_IPR(n >> 2) = NVIC_IPR(n >> 2) & ~(0xFF << sh); +} + +/** + * @brief Changes the priority of a system handler. + * + * @param handler the system handler number + * @param prio the system handler priority + * @note The parameters are not tested for correctness. + */ +void NVICSetSystemHandlerPriority(uint32_t handler, uint32_t prio) { + unsigned sh = (handler & 3) * 8; + + SCB_SHPR(handler >> 2) = (SCB_SHPR(handler >> 2) & ~(0xFF << sh)) | (prio << sh); +} + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/nvic.h b/os/ports/GCC/ARMCMx/nvic.h new file mode 100644 index 000000000..8a9950fcf --- /dev/null +++ b/os/ports/GCC/ARMCMx/nvic.h @@ -0,0 +1,191 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file ARMCMx/nvic.h + * @brief Cortex-Mx NVIC support macros and structures. + * @addtogroup ARMCMx_NVIC + * @{ + */ + +#ifndef _NVIC_H_ +#define _NVIC_H_ + +/* + * System vector constants for @p NVICSetSystemHandlerPriority(). + */ +#define HANDLER_MEM_MANAGE 0 /**< MEM MANAGE vector id.*/ +#define HANDLER_BUS_FAULT 1 /**< BUS FAULT vector id.*/ +#define HANDLER_USAGE_FAULT 2 /**< USAGE FAULT vector id.*/ +#define HANDLER_RESERVED_3 3 +#define HANDLER_RESERVED_4 4 +#define HANDLER_RESERVED_5 5 +#define HANDLER_RESERVED_6 6 +#define HANDLER_SVCALL 7 /**< SVCALL vector id.*/ +#define HANDLER_DEBUG_MONITOR 8 /**< DEBUG MONITOR vector id.*/ +#define HANDLER_RESERVED_9 9 +#define HANDLER_PENDSV 10 /**< PENDSV vector id.*/ +#define HANDLER_SYSTICK 11 /**< SYS TCK vector id.*/ + +typedef volatile unsigned char IOREG8; /**< 8 bits I/O register type.*/ +typedef volatile unsigned int IOREG32; /**< 32 bits I/O register type.*/ + +/** + * @brief NVIC ITCR register. + */ +#define NVIC_ITCR (*((IOREG32 *)0xE000E004)) + +/** + * @brief NVIC STIR register. + */ +#define NVIC_STIR (*((IOREG32 *)0xE000EF00)) + +/** + * @brief Structure representing the SYSTICK I/O space. + */ +typedef struct { + IOREG32 CSR; + IOREG32 RVR; + IOREG32 CVR; + IOREG32 CBVR; +} CM3_ST; + +/** + * @brief SYSTICK peripheral base address. + */ +#define STBase ((CM3_ST *)0xE000E010) +#define ST_CSR (STBase->CSR) +#define ST_RVR (STBase->RVR) +#define ST_CVR (STBase->CVR) +#define ST_CBVR (STBase->CBVR) + +#define CSR_ENABLE_MASK (0x1 << 0) +#define ENABLE_OFF_BITS (0 << 0) +#define ENABLE_ON_BITS (1 << 0) +#define CSR_TICKINT_MASK (0x1 << 1) +#define TICKINT_DISABLED_BITS (0 << 1) +#define TICKINT_ENABLED_BITS (1 << 1) +#define CSR_CLKSOURCE_MASK (0x1 << 2) +#define CLKSOURCE_EXT_BITS (0 << 2) +#define CLKSOURCE_CORE_BITS (1 << 2) +#define CSR_COUNTFLAG_MASK (0x1 << 16) + +#define RVR_RELOAD_MASK (0xFFFFFF << 0) + +#define CVR_CURRENT_MASK (0xFFFFFF << 0) + +#define CBVR_TENMS_MASK (0xFFFFFF << 0) +#define CBVR_SKEW_MASK (0x1 << 30) +#define CBVR_NOREF_MASK (0x1 << 31) + +/** + * @brief Structure representing the NVIC I/O space. + */ +typedef struct { + IOREG32 ISER[8]; + IOREG32 unused1[24]; + IOREG32 ICER[8]; + IOREG32 unused2[24]; + IOREG32 ISPR[8]; + IOREG32 unused3[24]; + IOREG32 ICPR[8]; + IOREG32 unused4[24]; + IOREG32 IABR[8]; + IOREG32 unused5[56]; + IOREG32 IPR[60]; +} CM3_NVIC; + +/** + * @brief NVIC peripheral base address. + */ +#define NVICBase ((CM3_NVIC *)0xE000E100) +#define NVIC_ISER(n) (NVICBase->ISER[n]) +#define NVIC_ICER(n) (NVICBase->ICER[n]) +#define NVIC_ISPR(n) (NVICBase->ISPR[n]) +#define NVIC_ICPR(n) (NVICBase->ICPR[n]) +#define NVIC_IABR(n) (NVICBase->IABR[n]) +#define NVIC_IPR(n) (NVICBase->IPR[n]) + +/** + * @brief Structure representing the System Control Block I/O space. + */ +typedef struct { + IOREG32 CPUID; + IOREG32 ICSR; + IOREG32 VTOR; + IOREG32 AIRCR; + IOREG32 SCR; + IOREG32 CCR; + IOREG32 SHPR[3]; + IOREG32 SHCSR; + IOREG32 CFSR; + IOREG32 HFSR; + IOREG32 DFSR; + IOREG32 MMFAR; + IOREG32 BFAR; + IOREG32 AFSR; +} CM3_SCB; + +/** + * @brief SCB peripheral base address. + */ +#define SCBBase ((CM3_SCB *)0xE000ED00) +#define SCB_CPUID (SCBBase->CPUID) +#define SCB_ICSR (SCBBase->ICSR) +#define SCB_VTOR (SCBBase->VTOR) +#define SCB_AIRCR (SCBBase->AIRCR) +#define SCB_SCR (SCBBase->SCR) +#define SCB_CCR (SCBBase->CCR) +#define SCB_SHPR(n) (SCBBase->SHPR[n]) +#define SCB_SHCSR (SCBBase->SHCSR) +#define SCB_CFSR (SCBBase->CFSR) +#define SCB_HFSR (SCBBase->HFSR) +#define SCB_DFSR (SCBBase->DFSR) +#define SCB_MMFAR (SCBBase->MMFAR) +#define SCB_BFAR (SCBBase->BFAR) +#define SCB_AFSR (SCBBase->AFSR) + +#define ICSR_VECTACTIVE_MASK (0x1FF << 0) +#define ICSR_RETTOBASE (0x1 << 11) +#define ICSR_VECTPENDING_MASK (0x1FF << 12) +#define ICSR_ISRPENDING (0x1 << 22) +#define ICSR_ISRPREEMPT (0x1 << 23) +#define ICSR_PENDSTCLR (0x1 << 25) +#define ICSR_PENDSTSET (0x1 << 26) +#define ICSR_PENDSVCLR (0x1 << 27) +#define ICSR_PENDSVSET (0x1 << 28) +#define ICSR_NMIPENDSET (0x1 << 31) + +#define AIRCR_VECTKEY 0x05FA0000 +#define AIRCR_PRIGROUP_MASK (0x7 << 8) +#define AIRCR_PRIGROUP(n) ((n) << 8) + +#ifdef __cplusplus +extern "C" { +#endif + void NVICEnableVector(uint32_t n, uint32_t prio); + void NVICDisableVector(uint32_t n); + void NVICSetSystemHandlerPriority(uint32_t handler, uint32_t prio); +#ifdef __cplusplus +} +#endif + +#endif /* _NVIC_H_ */ + +/** @} */ diff --git a/os/ports/GCC/ARMCMx/port.dox b/os/ports/GCC/ARMCMx/port.dox new file mode 100644 index 000000000..6ec32f56f --- /dev/null +++ b/os/ports/GCC/ARMCMx/port.dox @@ -0,0 +1,170 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @defgroup ARMCMx ARM Cortex-Mx + * @details This port supports the ARM Cortex-Mx architectures, specifically + * the Cortex-M0 and the Cortex-M3. + * + * @section ARMCMx_STATES Mapping of the System States in the ARM Cortex-Mx port + * The ChibiOS/RT logical @ref system_states are mapped as follow in the ARM + * Cortex-Mx port: + * - Init. This state is represented by the startup code and the + * initialization code before @p chSysInit() is executed. It has not a + * special hardware state associated. + * - Normal. This is the state the system has after executing + * @p chSysInit(). In this state the ARM Cortex-Mx has the BASEPRI register + * set at @p CORTEX_BASEPRI_USER level, interrupts are not masked. The + * processor is running in thread-privileged mode. + * - Suspended. In this state the interrupt sources are not globally + * masked but the BASEPRI register is set to @p CORTEX_BASEPRI_KERNEL thus + * masking any interrupt source with lower or equal priority. The processor + * is running in thread-privileged mode. + * - Disabled. Interrupt sources are globally masked. The processor + * is running in thread-privileged mode. + * - Sleep. This state is entered with the execution of the specific + * instruction @p wfi. + * - S-Locked. In this state the interrupt sources are not globally + * masked but the BASEPRI register is set to @p CORTEX_BASEPRI_KERNEL thus + * masking any interrupt source with lower or equal priority. The processor + * is running in thread-privileged mode. + * - I-Locked. In this state the interrupt sources are not globally + * masked but the BASEPRI register is set to @p CORTEX_BASEPRI_KERNEL thus + * masking any interrupt source with lower or equal priority. The processor + * is running in exception-privileged mode. + * - Serving Regular Interrupt. In this state the interrupt sources are + * not globally masked but only interrupts with higher priority can preempt + * the current handler. The processor is running in exception-privileged mode. + * - Serving Fast Interrupt. It is basically the same of the SRI state + * but it is not possible to switch to the I-Locked state because fast + * interrupts can preempt the kernel critical zone. + * - Serving Non-Maskable Interrupt. The Cortex-Mx has a specific + * asynchronous NMI vector and several synchronous fault vectors that can + * be considered to be in this category. + * - Halted. Implemented as an infinite loop after globally masking all + * the maskable interrupt sources. The ARM state is whatever the processor + * was running when @p chSysHalt() was invoked. + * . + * @section ARMCMx_NOTES The ARM Cortex-Mx port notes + * The ARM Cortex-Mx port is organized as follow: + * - The @p main() function is invoked in thread-privileged mode. + * - Each thread has a private process stack, the system has a single main + * stack where all the interrupts and exceptions are processed. + * - Only the 4 MSb of the priority level are used, the 4 LSb are assumed + * to be zero. + * - The threads are started in thread-privileged mode with BASEPRI level + * 0x00 (disabled). + * - The kernel raises its BASEPRI level to @p CORTEX_BASEPRI_KERNEL in order + * to protect the kernel data structures. + * - Interrupt nesting and the other advanced NVIC features are supported. + * - The SVC instruction and vector, with parameter #0, is internally used + * for commanded context switching.
+ * It is possible to share the SVC handler at the cost of slower context + * switching. + * - The PendSV vector is internally used for preemption context switching. + * . + * @ingroup ports + */ + +/** + * @defgroup ARMCMx_CONF Configuration Options + * @brief ARM Cortex-Mx Configuration Options. + * @details The ARMCMx port allows some architecture-specific configurations + * settings that can be specified externally, as example on the compiler + * command line: + * - @p INT_REQUIRED_STACK, this value represent the amount of stack space used + * by an interrupt handler between the @p extctx and @p intctx + * structures.
+ * In the current implementation this value is guaranteed to be zero so + * there is no need to modify this value unless changes are done at the + * interrupts handling code. + * - @p CORTEX_BASEPRI_USER, this is the @p BASEPRI value for the user threads. + * The default value is @p 0 (disabled).
+ * Usually there is no need to change this value, please refer to the + * Cortex-Mx technical reference manual for a detailed description. + * - @p CORTEX_BASEPRI_KERNEL, this is the @p BASEPRI value for the kernel lock + * code.
+ * Code running at higher priority levels must not invoke any OS API.
+ * Usually there is no need to change this value, please refer to the + * Cortex-Mx technical reference manual for a detailed description. + * - @p ENABLE_WFI_IDLE, if set to @p 1 enables the use of the @p wfi + * instruction from within the idle loop. This is defaulted to 0 because + * it can create problems with some debuggers. Setting this option to 1 + * reduces the system power requirements. + * . + * @ingroup ARMCMx + */ + +/** + * @defgroup ARMCMx_CORE Core Port Implementation + * @brief ARM Cortex-Mx specific port code, structures and macros. + * + * @ingroup ARMCMx + */ + +/** + * @defgroup ARMCMx_STARTUP Startup Support + * @brief ARM Cortex-Mx startup code support. + * @details ChibiOS/RT provides its own generic startup file for the ARM + * Cortex-Mx port. + * Of course it is not mandatory to use it but care should be taken about the + * startup phase details. + * + *

Startup Process

+ * The startup process, as implemented, is the following: + * -# Interrupts are masked globally. + * -# The two stacks are initialized by assigning them the sizes defined in the + * linker script (usually named @p ch.ld). Stack areas are allocated from + * the highest RAM location downward. + * -# An early initialization routine @p hwinit0 is invoked, if the symbol is + * not defined then an empty default routine is executed (weak symbol). + * -# DATA and BSS segments are initialized. + * -# The CPU state is switched to Privileged and the PSP stack is used. + * -# A late initialization routine @p hwinit1 is invoked, if the symbol not + * defined then an empty default routine is executed (weak symbol).
+ * This late initialization function is also the proper place for a + * @a bootloader, if your application requires one. + * -# The @p main() function is invoked with the parameters @p argc and @p argv + * set to zero. + * -# Should the @p main() function return a branch is performed to the weak + * symbol MainExitHandler. The default code is an endless empty loop. + * . + *

Expected linker symbols

+ * The startup code starts at the symbol @p ResetHandler and expects the + * following symbols to be defined in the linker script: + * - @p __ram_end__ RAM end location +1. + * - @p __main_stack_size__ Exception stack size. + * - @p __process_stack_size__ Process stack size. This is the stack area used + * by the @p main() function. + * - @p _textdata address of the data segment source read only data. + * - @p _data data segment start location. + * - @p _edata data segment end location +1. + * - @p _bss_start BSS start location. + * - @p _bss_end BSS end location +1. + * . + * @ingroup ARMCMx + * @file ARMCMx/crt0.s Startup code. + */ + +/** + * @defgroup ARMCMx_NVIC NVIC Support + * @brief ARM Cortex-Mx NVIC support. + * + * @ingroup ARMCMx + */ -- cgit v1.2.3