diff options
Diffstat (limited to 'libopencm3/lib/stm32/f2')
| -rw-r--r-- | libopencm3/lib/stm32/f2/Makefile | 52 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/crc.c | 33 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/crypto.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/dac.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/dma.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/flash.c | 53 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/gpio.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/hash.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/i2c.c | 33 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/iwdg.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/libopencm3_stm32f2.ld | 106 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/pwr.c | 39 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/rcc.c | 417 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/rtc.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/spi.c | 31 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/timer.c | 38 | ||||
| -rw-r--r-- | libopencm3/lib/stm32/f2/usart.c | 31 |
17 files changed, 1050 insertions, 0 deletions
diff --git a/libopencm3/lib/stm32/f2/Makefile b/libopencm3/lib/stm32/f2/Makefile new file mode 100644 index 0000000..9291668 --- /dev/null +++ b/libopencm3/lib/stm32/f2/Makefile @@ -0,0 +1,52 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de> +## +## This library is free software: you can redistribute it and/or modify +## it under the terms of the GNU Lesser General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This library 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 Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public License +## along with this library. If not, see <http://www.gnu.org/licenses/>. +## + +LIBNAME = libopencm3_stm32f2 +SRCLIBDIR ?= ../.. + +PREFIX ?= arm-none-eabi + +CC = $(PREFIX)-gcc +AR = $(PREFIX)-ar +CFLAGS = -Os -g \ + -Wall -Wextra -Wimplicit-function-declaration \ + -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \ + -Wundef -Wshadow \ + -I../../../include -fno-common \ + -mcpu=cortex-m3 -mthumb $(FP_FLAGS) -Wstrict-prototypes \ + -ffunction-sections -fdata-sections -MD -DSTM32F2 +# ARFLAGS = rcsv +ARFLAGS = rcs + +OBJS = gpio.o rcc.o + +OBJS += crc_common_all.o dac_common_all.o dma_common_f24.o \ + gpio_common_all.o gpio_common_f0234.o i2c_common_all.o \ + iwdg_common_all.o rtc_common_l1f024.o spi_common_all.o \ + spi_common_l1f124.o timer_common_all.o timer_common_f234.o \ + timer_common_f24.o usart_common_all.o usart_common_f124.o \ + flash_common_f234.o flash_common_f24.o hash_common_f24.o \ + crypto_common_f24.o exti_common_all.o rcc_common_all.o + +OBJS += usb.o usb_standard.o usb_control.o usb_fx07_common.o \ + usb_f107.o usb_f207.o usb_msc.o + +VPATH += ../../usb:../:../../cm3:../common + +include ../../Makefile.include diff --git a/libopencm3/lib/stm32/f2/crc.c b/libopencm3/lib/stm32/f2/crc.c new file mode 100644 index 0000000..c5ae5d3 --- /dev/null +++ b/libopencm3/lib/stm32/f2/crc.c @@ -0,0 +1,33 @@ +/** @defgroup crc_file CRC + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx CRC</b> + +@version 1.0.0 + +@date 15 October 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/crc.h> + + diff --git a/libopencm3/lib/stm32/f2/crypto.c b/libopencm3/lib/stm32/f2/crypto.c new file mode 100644 index 0000000..e44fb63 --- /dev/null +++ b/libopencm3/lib/stm32/f2/crypto.c @@ -0,0 +1,31 @@ +/** @defgroup crypto_file CRYPTO + * + * @ingroup STM32F2xx + * + * @brief <b>libopencm3 STM32F2xx Cryptographic controller</b> + * + * @version 1.0.0 + * + * @date 14 January 2014 + * + * LGPL License Terms @ref lgpl_license + */ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/crypto.h> diff --git a/libopencm3/lib/stm32/f2/dac.c b/libopencm3/lib/stm32/f2/dac.c new file mode 100644 index 0000000..635e142 --- /dev/null +++ b/libopencm3/lib/stm32/f2/dac.c @@ -0,0 +1,31 @@ +/** @defgroup dac_file DAC + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx DAC</b> + +@version 1.0.0 + +@date 18 August 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/dac.h> diff --git a/libopencm3/lib/stm32/f2/dma.c b/libopencm3/lib/stm32/f2/dma.c new file mode 100644 index 0000000..285f1fe --- /dev/null +++ b/libopencm3/lib/stm32/f2/dma.c @@ -0,0 +1,31 @@ +/** @defgroup dma_file DMA + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx DMA</b> + +@version 1.0.0 + +@date 30 November 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/dma.h> diff --git a/libopencm3/lib/stm32/f2/flash.c b/libopencm3/lib/stm32/f2/flash.c new file mode 100644 index 0000000..7f8255d --- /dev/null +++ b/libopencm3/lib/stm32/f2/flash.c @@ -0,0 +1,53 @@ +/** @defgroup flash_file FLASH + * + * @ingroup STM32F2xx + * + * @brief <b>libopencm3 STM32F2xx FLASH</b> + * + * @version 1.0.0 + * + * @author @htmlonly © @endhtmlonly 2010 + * Thomas Otto <tommi@viadmin.org> + * @author @htmlonly © @endhtmlonly 2010 + * Mark Butler <mbutler@physics.otago.ac.nz> + * + * @date 14 January 2014 + * + * This library supports the FLASH memory controller in the STM32F2 + * series of ARM Cortex Microcontrollers by ST Microelectronics. + * + * For the STM32F2xx, accessing FLASH memory is described briefly in + * section 2.3.3 of the STM32F2xx Reference Manual. + * For detailed programming information see: + * PM0059 programming manual: STM32F10xxx Flash programming + * June 2013, Doc ID DocID15687 Rev 5 + * + * LGPL License Terms @ref lgpl_license + */ + +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org> + * Copyright (C) 2010 Mark Butler <mbutler@physics.otago.ac.nz> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +/**@{*/ + +#include <libopencm3/stm32/flash.h> + +/**@}*/ + diff --git a/libopencm3/lib/stm32/f2/gpio.c b/libopencm3/lib/stm32/f2/gpio.c new file mode 100644 index 0000000..052e306 --- /dev/null +++ b/libopencm3/lib/stm32/f2/gpio.c @@ -0,0 +1,31 @@ +/** @defgroup gpio_file GPIO + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx General Purpose I/O</b> + +@version 1.0.0 + +@date 18 August 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/gpio.h> diff --git a/libopencm3/lib/stm32/f2/hash.c b/libopencm3/lib/stm32/f2/hash.c new file mode 100644 index 0000000..ca48d8b --- /dev/null +++ b/libopencm3/lib/stm32/f2/hash.c @@ -0,0 +1,31 @@ +/** @defgroup hash_file HASH + * + * @ingroup STM32F2xx + * + * @brief <b>libopencm3 STM32F2xx Hash Processor</b> + * + * @version 1.0.0 + * + * @date 14 January 2014 + * + * LGPL License Terms @ref lgpl_license + */ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/hash.h> diff --git a/libopencm3/lib/stm32/f2/i2c.c b/libopencm3/lib/stm32/f2/i2c.c new file mode 100644 index 0000000..ea0c99d --- /dev/null +++ b/libopencm3/lib/stm32/f2/i2c.c @@ -0,0 +1,33 @@ +/** @defgroup i2c_file I2C + * + * @ingroup STM32F2xx + * + * @brief <b>libopencm3 STM32F2xx I2C</b> + * + * @version 1.0.0 + * + * @date 15 October 2012 + * + * LGPL License Terms @ref lgpl_license + */ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/i2c.h> +#include <libopencm3/stm32/common/i2c_common_all.h> + diff --git a/libopencm3/lib/stm32/f2/iwdg.c b/libopencm3/lib/stm32/f2/iwdg.c new file mode 100644 index 0000000..2d9dc4a --- /dev/null +++ b/libopencm3/lib/stm32/f2/iwdg.c @@ -0,0 +1,31 @@ +/** @defgroup iwdg_file IWDG + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx Independent Watchdog Timer</b> + +@version 1.0.0 + +@date 18 August 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/iwdg.h> diff --git a/libopencm3/lib/stm32/f2/libopencm3_stm32f2.ld b/libopencm3/lib/stm32/f2/libopencm3_stm32f2.ld new file mode 100644 index 0000000..3fc2ccb --- /dev/null +++ b/libopencm3/lib/stm32/f2/libopencm3_stm32f2.ld @@ -0,0 +1,106 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Generic linker script for STM32 targets using libopencm3. */ + +/* Memory regions must be defined in the ld script which includes this one. */ + +/* Enforce emmition of the vector table. */ +EXTERN (vector_table) + +/* Define the entry point of the output file. */ +ENTRY(reset_handler) + +/* Define sections. */ +SECTIONS +{ + .text : { + *(.vectors) /* Vector table */ + *(.text*) /* Program code */ + . = ALIGN(4); + *(.rodata*) /* Read-only data */ + . = ALIGN(4); + } >rom + + /* C++ Static constructors/destructors, also used for __attribute__ + * ((constructor)) and the likes */ + .preinit_array : { + . = ALIGN(4); + __preinit_array_start = .; + KEEP (*(.preinit_array)) + __preinit_array_end = .; + } >rom + .init_array : { + . = ALIGN(4); + __init_array_start = .; + KEEP (*(SORT(.init_array.*))) + KEEP (*(.init_array)) + __init_array_end = .; + } >rom + .fini_array : { + . = ALIGN(4); + __fini_array_start = .; + KEEP (*(.fini_array)) + KEEP (*(SORT(.fini_array.*))) + __fini_array_end = .; + } >rom + + /* + * Another section used by C++ stuff, appears when using newlib with + * 64bit (long long) printf support + */ + .ARM.extab : { + *(.ARM.extab*) + } >rom + .ARM.exidx : { + __exidx_start = .; + *(.ARM.exidx*) + __exidx_end = .; + } >rom + + . = ALIGN(4); + _etext = .; + + .data : { + _data = .; + *(.data*) /* Read-write initialized data */ + . = ALIGN(4); + _edata = .; + } >ram AT >rom + _data_loadaddr = LOADADDR(.data); + + .bss : { + *(.bss*) /* Read-write zero initialized data */ + *(COMMON) + . = ALIGN(4); + _ebss = .; + } >ram + + /* + * The .eh_frame section appears to be used for C++ exception handling. + * You may need to fix this if you're using C++. + */ + /DISCARD/ : { *(.eh_frame) } + + . = ALIGN(4); + end = .; +} + +PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram)); + diff --git a/libopencm3/lib/stm32/f2/pwr.c b/libopencm3/lib/stm32/f2/pwr.c new file mode 100644 index 0000000..0e5641e --- /dev/null +++ b/libopencm3/lib/stm32/f2/pwr.c @@ -0,0 +1,39 @@ +/** @defgroup pwr_file PWR + * + * @ingroup STM32F2xx + * + * @brief <b>libopencm3 STM32F2xx Power Control</b> + * + * @version 1.0.0 + * + * @author @htmlonly © @endhtmlonly 2014 + * Ken Sarkies <ksarkies@internode.on.net> + * + * @date 13 January 2014 + * + * This library supports the power control system for the + * STM32F4 series of ARM Cortex Microcontrollers by ST Microelectronics. + * + * LGPL License Terms @ref lgpl_license + */ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2014 Ken Sarkies <ksarkies@internode.on.net> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/pwr.h> + diff --git a/libopencm3/lib/stm32/f2/rcc.c b/libopencm3/lib/stm32/f2/rcc.c new file mode 100644 index 0000000..4b6195b --- /dev/null +++ b/libopencm3/lib/stm32/f2/rcc.c @@ -0,0 +1,417 @@ +/** @defgroup rcc_file RCC + * + * @ingroup STM32F2xx + * + * @section rcc_f2_api_ex Reset and Clock Control API. + * + * @brief <b>libopencm3 STM32F2xx Reset and Clock Control</b> + * + * @author @htmlonly © @endhtmlonly 2013 Frantisek Burian <BuFran at seznam.cz> + * + * @date 18 Jun 2013 + * + * This library supports the Reset and Clock Control System in the STM32 series + * of ARM Cortex Microcontrollers by ST Microelectronics. + * + * LGPL License Terms @ref lgpl_license + */ + +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Federico Ruiz-Ugalde <memeruiz at gmail dot com> + * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de> + * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/cm3/assert.h> +#include <libopencm3/stm32/rcc.h> +#include <libopencm3/stm32/flash.h> + +/**@{*/ + +/* Set the default ppre1 and ppre2 peripheral clock frequencies after reset. */ +uint32_t rcc_ppre1_frequency = 16000000; +uint32_t rcc_ppre2_frequency = 16000000; + +const clock_scale_t hse_8mhz_3v3[CLOCK_3V3_END] = { + { /* 120MHz */ + .pllm = 8, + .plln = 240, + .pllp = 2, + .pllq = 5, + .hpre = RCC_CFGR_HPRE_DIV_NONE, + .ppre1 = RCC_CFGR_PPRE_DIV_4, + .ppre2 = RCC_CFGR_PPRE_DIV_2, + .flash_config = FLASH_ACR_ICE | FLASH_ACR_DCE | + FLASH_ACR_LATENCY_3WS, + .apb1_frequency = 30000000, + .apb2_frequency = 60000000, + }, +}; + +void rcc_osc_ready_int_clear(osc_t osc) +{ + switch (osc) { + case PLL: + RCC_CIR |= RCC_CIR_PLLRDYC; + break; + case HSE: + RCC_CIR |= RCC_CIR_HSERDYC; + break; + case HSI: + RCC_CIR |= RCC_CIR_HSIRDYC; + break; + case LSE: + RCC_CIR |= RCC_CIR_LSERDYC; + break; + case LSI: + RCC_CIR |= RCC_CIR_LSIRDYC; + break; + } +} + +void rcc_osc_ready_int_enable(osc_t osc) +{ + switch (osc) { + case PLL: + RCC_CIR |= RCC_CIR_PLLRDYIE; + break; + case HSE: + RCC_CIR |= RCC_CIR_HSERDYIE; + break; + case HSI: + RCC_CIR |= RCC_CIR_HSIRDYIE; + break; + case LSE: + RCC_CIR |= RCC_CIR_LSERDYIE; + break; + case LSI: + RCC_CIR |= RCC_CIR_LSIRDYIE; + break; + } +} + +void rcc_osc_ready_int_disable(osc_t osc) +{ + switch (osc) { + case PLL: + RCC_CIR &= ~RCC_CIR_PLLRDYIE; + break; + case HSE: + RCC_CIR &= ~RCC_CIR_HSERDYIE; + break; + case HSI: + RCC_CIR &= ~RCC_CIR_HSIRDYIE; + break; + case LSE: + RCC_CIR &= ~RCC_CIR_LSERDYIE; + break; + case LSI: + RCC_CIR &= ~RCC_CIR_LSIRDYIE; + break; + } +} + +int rcc_osc_ready_int_flag(osc_t osc) +{ + switch (osc) { + case PLL: + return ((RCC_CIR & RCC_CIR_PLLRDYF) != 0); + break; + case HSE: + return ((RCC_CIR & RCC_CIR_HSERDYF) != 0); + break; + case HSI: + return ((RCC_CIR & RCC_CIR_HSIRDYF) != 0); + break; + case LSE: + return ((RCC_CIR & RCC_CIR_LSERDYF) != 0); + break; + case LSI: + return ((RCC_CIR & RCC_CIR_LSIRDYF) != 0); + break; + } + + cm3_assert_not_reached(); +} + +void rcc_css_int_clear(void) +{ + RCC_CIR |= RCC_CIR_CSSC; +} + +int rcc_css_int_flag(void) +{ + return ((RCC_CIR & RCC_CIR_CSSF) != 0); +} + +void rcc_wait_for_osc_ready(osc_t osc) +{ + switch (osc) { + case PLL: + while ((RCC_CR & RCC_CR_PLLRDY) == 0); + break; + case HSE: + while ((RCC_CR & RCC_CR_HSERDY) == 0); + break; + case HSI: + while ((RCC_CR & RCC_CR_HSIRDY) == 0); + break; + case LSE: + while ((RCC_BDCR & RCC_BDCR_LSERDY) == 0); + break; + case LSI: + while ((RCC_CSR & RCC_CSR_LSIRDY) == 0); + break; + } +} + +void rcc_wait_for_sysclk_status(osc_t osc) +{ + switch (osc) { + case PLL: + while ((RCC_CFGR & ((1 << 1) | (1 << 0))) != RCC_CFGR_SWS_PLL); + break; + case HSE: + while ((RCC_CFGR & ((1 << 1) | (1 << 0))) != RCC_CFGR_SWS_HSE); + break; + case HSI: + while ((RCC_CFGR & ((1 << 1) | (1 << 0))) != RCC_CFGR_SWS_HSI); + break; + default: + /* Shouldn't be reached. */ + break; + } +} + +void rcc_osc_on(osc_t osc) +{ + switch (osc) { + case PLL: + RCC_CR |= RCC_CR_PLLON; + break; + case HSE: + RCC_CR |= RCC_CR_HSEON; + break; + case HSI: + RCC_CR |= RCC_CR_HSION; + break; + case LSE: + RCC_BDCR |= RCC_BDCR_LSEON; + break; + case LSI: + RCC_CSR |= RCC_CSR_LSION; + break; + } +} + +void rcc_osc_off(osc_t osc) +{ + switch (osc) { + case PLL: + RCC_CR &= ~RCC_CR_PLLON; + break; + case HSE: + RCC_CR &= ~RCC_CR_HSEON; + break; + case HSI: + RCC_CR &= ~RCC_CR_HSION; + break; + case LSE: + RCC_BDCR &= ~RCC_BDCR_LSEON; + break; + case LSI: + RCC_CSR &= ~RCC_CSR_LSION; + break; + } +} + +void rcc_css_enable(void) +{ + RCC_CR |= RCC_CR_CSSON; +} + +void rcc_css_disable(void) +{ + RCC_CR &= ~RCC_CR_CSSON; +} + +void rcc_osc_bypass_enable(osc_t osc) +{ + switch (osc) { + case HSE: + RCC_CR |= RCC_CR_HSEBYP; + break; + case LSE: + RCC_BDCR |= RCC_BDCR_LSEBYP; + break; + case PLL: + case HSI: + case LSI: + /* Do nothing, only HSE/LSE allowed here. */ + break; + } +} + +void rcc_osc_bypass_disable(osc_t osc) +{ + switch (osc) { + case HSE: + RCC_CR &= ~RCC_CR_HSEBYP; + break; + case LSE: + RCC_BDCR &= ~RCC_BDCR_LSEBYP; + break; + case PLL: + case HSI: + case LSI: + /* Do nothing, only HSE/LSE allowed here. */ + break; + } +} + +void rcc_set_sysclk_source(uint32_t clk) +{ + uint32_t reg32; + + reg32 = RCC_CFGR; + reg32 &= ~((1 << 1) | (1 << 0)); + RCC_CFGR = (reg32 | clk); +} + +void rcc_set_pll_source(uint32_t pllsrc) +{ + uint32_t reg32; + + reg32 = RCC_PLLCFGR; + reg32 &= ~(1 << 22); + RCC_PLLCFGR = (reg32 | (pllsrc << 22)); +} + +void rcc_set_ppre2(uint32_t ppre2) +{ + uint32_t reg32; + + reg32 = RCC_CFGR; + reg32 &= ~((1 << 13) | (1 << 14) | (1 << 15)); + RCC_CFGR = (reg32 | (ppre2 << 13)); +} + +void rcc_set_ppre1(uint32_t ppre1) +{ + uint32_t reg32; + + reg32 = RCC_CFGR; + reg32 &= ~((1 << 10) | (1 << 11) | (1 << 12)); + RCC_CFGR = (reg32 | (ppre1 << 10)); +} + +void rcc_set_hpre(uint32_t hpre) +{ + uint32_t reg32; + + reg32 = RCC_CFGR; + reg32 &= ~((1 << 4) | (1 << 5) | (1 << 6) | (1 << 7)); + RCC_CFGR = (reg32 | (hpre << 4)); +} + +void rcc_set_rtcpre(uint32_t rtcpre) +{ + uint32_t reg32; + + reg32 = RCC_CFGR; + reg32 &= ~((1 << 16) | (1 << 17) | (1 << 18) | (1 << 19) | (1 << 20)); + RCC_CFGR = (reg32 | (rtcpre << 16)); +} + +void rcc_set_main_pll_hsi(uint32_t pllm, uint32_t plln, uint32_t pllp, + uint32_t pllq) +{ + RCC_PLLCFGR = (pllm << RCC_PLLCFGR_PLLM_SHIFT) | + (plln << RCC_PLLCFGR_PLLN_SHIFT) | + (((pllp >> 1) - 1) << RCC_PLLCFGR_PLLP_SHIFT) | + (pllq << RCC_PLLCFGR_PLLQ_SHIFT); +} + +void rcc_set_main_pll_hse(uint32_t pllm, uint32_t plln, uint32_t pllp, + uint32_t pllq) +{ + RCC_PLLCFGR = (pllm << RCC_PLLCFGR_PLLM_SHIFT) | + (plln << RCC_PLLCFGR_PLLN_SHIFT) | + (((pllp >> 1) - 1) << RCC_PLLCFGR_PLLP_SHIFT) | + RCC_PLLCFGR_PLLSRC | + (pllq << RCC_PLLCFGR_PLLQ_SHIFT); +} + +uint32_t rcc_system_clock_source(void) +{ + /* Return the clock source which is used as system clock. */ + return (RCC_CFGR & 0x000c) >> 2; +} + +void rcc_clock_setup_hse_3v3(const clock_scale_t *clock) +{ + /* Enable internal high-speed oscillator. */ + rcc_osc_on(HSI); + rcc_wait_for_osc_ready(HSI); + + /* Select HSI as SYSCLK source. */ + rcc_set_sysclk_source(RCC_CFGR_SW_HSI); + + /* Enable external high-speed oscillator 8MHz. */ + rcc_osc_on(HSE); + rcc_wait_for_osc_ready(HSE); + + /* + * Set prescalers for AHB, ADC, ABP1, ABP2. + * Do this before touching the PLL (TODO: why?). + */ + rcc_set_hpre(clock->hpre); + rcc_set_ppre1(clock->ppre1); + rcc_set_ppre2(clock->ppre2); + + rcc_set_main_pll_hse(clock->pllm, clock->plln, + clock->pllp, clock->pllq); + + /* Enable PLL oscillator and wait for it to stabilize. */ + rcc_osc_on(PLL); + rcc_wait_for_osc_ready(PLL); + + /* Configure flash settings. */ + flash_set_ws(clock->flash_config); + + /* Select PLL as SYSCLK source. */ + rcc_set_sysclk_source(RCC_CFGR_SW_PLL); + + /* Wait for PLL clock to be selected. */ + rcc_wait_for_sysclk_status(PLL); + + /* Set the peripheral clock frequencies used. */ + rcc_ppre1_frequency = clock->apb1_frequency; + rcc_ppre2_frequency = clock->apb2_frequency; +} + +void rcc_backupdomain_reset(void) +{ + /* Set the backup domain software reset. */ + RCC_BDCR |= RCC_BDCR_BDRST; + + /* Clear the backup domain software reset. */ + RCC_BDCR &= ~RCC_BDCR_BDRST; +} + +/**@}*/ diff --git a/libopencm3/lib/stm32/f2/rtc.c b/libopencm3/lib/stm32/f2/rtc.c new file mode 100644 index 0000000..06666ab --- /dev/null +++ b/libopencm3/lib/stm32/f2/rtc.c @@ -0,0 +1,31 @@ +/** @defgroup rtc_file RTC + * + * @ingroup STM32F2xx + * + * @brief <b>libopencm3 STM32F2xx RTC</b> + * + * @version 1.0.0 + * + * @date 4 March 2013 + * + * LGPL License Terms @ref lgpl_license + */ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/rtc.h> diff --git a/libopencm3/lib/stm32/f2/spi.c b/libopencm3/lib/stm32/f2/spi.c new file mode 100644 index 0000000..8fb70cd --- /dev/null +++ b/libopencm3/lib/stm32/f2/spi.c @@ -0,0 +1,31 @@ +/** @defgroup spi_file SPI + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx SPI</b> + +@version 1.0.0 + +@date 15 October 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/spi.h> diff --git a/libopencm3/lib/stm32/f2/timer.c b/libopencm3/lib/stm32/f2/timer.c new file mode 100644 index 0000000..6600705 --- /dev/null +++ b/libopencm3/lib/stm32/f2/timer.c @@ -0,0 +1,38 @@ +/* This file is used for documentation purposes. It does not need +to be compiled. All source code is in the common area. +If there is any device specific code required it can be included here, +in which case this file must be added to the compile list. */ + +/** @defgroup timer_file Timers + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx Timers</b> + +@version 1.0.0 + +@date 18 August 2012 + +*/ + +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Edward Cheeseman <evbuilder@users.sourceforge.org> + * Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/timer.h> diff --git a/libopencm3/lib/stm32/f2/usart.c b/libopencm3/lib/stm32/f2/usart.c new file mode 100644 index 0000000..f6de5a8 --- /dev/null +++ b/libopencm3/lib/stm32/f2/usart.c @@ -0,0 +1,31 @@ +/** @defgroup usart_file USART + +@ingroup STM32F2xx + +@brief <b>libopencm3 STM32F2xx USART</b> + +@version 1.0.0 + +@date 30 August 2012 + +LGPL License Terms @ref lgpl_license +*/ + +/* + * This file is part of the libopencm3 project. + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libopencm3/stm32/usart.h> |