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/*
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 <http://www.gnu.org/licenses/>.
*/
/**
* @file STM32/hal_lld_F10x.h
* @brief STM32F10x HAL subsystem low level driver header.
*
* @addtogroup STM32F10x_HAL
* @{
*/
#ifndef _HAL_LLD_F10X_H_
#define _HAL_LLD_F10X_H_
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
#define STM32_HSICLK 8000000 /**< High speed internal clock. */
#define STM32_LSICLK 40000 /**< Low speed internal clock. */
/* RCC_CFGR register bits definitions.*/
#define STM32_SW_HSI (0 << 0) /**< SYSCLK source is HSI. */
#define STM32_SW_HSE (1 << 0) /**< SYSCLK source is HSE. */
#define STM32_SW_PLL (2 << 0) /**< SYSCLK source is PLL. */
#define STM32_HPRE_DIV1 (0 << 4) /**< SYSCLK divided by 1. */
#define STM32_HPRE_DIV2 (8 << 4) /**< SYSCLK divided by 2. */
#define STM32_HPRE_DIV4 (9 << 4) /**< SYSCLK divided by 4. */
#define STM32_HPRE_DIV8 (10 << 4) /**< SYSCLK divided by 8. */
#define STM32_HPRE_DIV16 (11 << 4) /**< SYSCLK divided by 16. */
#define STM32_HPRE_DIV64 (12 << 4) /**< SYSCLK divided by 64. */
#define STM32_HPRE_DIV128 (13 << 4) /**< SYSCLK divided by 128. */
#define STM32_HPRE_DIV256 (14 << 4) /**< SYSCLK divided by 256. */
#define STM32_HPRE_DIV512 (15 << 4) /**< SYSCLK divided by 512. */
#define STM32_PPRE1_DIV1 (0 << 8) /**< HCLK divided by 1. */
#define STM32_PPRE1_DIV2 (4 << 8) /**< HCLK divided by 2. */
#define STM32_PPRE1_DIV4 (5 << 8) /**< HCLK divided by 4. */
#define STM32_PPRE1_DIV8 (6 << 8) /**< HCLK divided by 8. */
#define STM32_PPRE1_DIV16 (7 << 8) /**< HCLK divided by 16. */
#define STM32_PPRE2_DIV1 (0 << 11) /**< HCLK divided by 1. */
#define STM32_PPRE2_DIV2 (4 << 11) /**< HCLK divided by 2. */
#define STM32_PPRE2_DIV4 (5 << 11) /**< HCLK divided by 4. */
#define STM32_PPRE2_DIV8 (6 << 11) /**< HCLK divided by 8. */
#define STM32_PPRE2_DIV16 (7 << 11) /**< HCLK divided by 16. */
#define STM32_ADCPRE_DIV2 (0 << 14) /**< HCLK divided by 2. */
#define STM32_ADCPRE_DIV4 (1 << 14) /**< HCLK divided by 4. */
#define STM32_ADCPRE_DIV6 (2 << 14) /**< HCLK divided by 6. */
#define STM32_ADCPRE_DIV8 (3 << 14) /**< HCLK divided by 8. */
#define STM32_PLLSRC_HSI (0 << 16) /**< PLL clock source is HSI. */
#define STM32_PLLSRC_HSE (1 << 16) /**< PLL clock source is HSE. */
#define STM32_PLLXTPRE_DIV1 (0 << 17) /**< HSE divided by 1. */
#define STM32_PLLXTPRE_DIV2 (1 << 17) /**< HSE divided by 2. */
#define STM32_MCO_NOCLOCK (0 << 24) /**< No clock on MCO pin. */
#define STM32_MCO_SYSCLK (4 << 24) /**< SYSCLK on MCO pin. */
#define STM32_MCO_HSI (5 << 24) /**< HSI clock on MCO pin. */
#define STM32_MCO_HSE (6 << 24) /**< HSE clock on MCO pin. */
#define STM32_MCO_PLLDIV2 (7 << 24) /**< PLL/2 clock on MCO pin. */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief Main clock source selection.
* @note If the selected clock source is not the PLL then the PLL is not
* initialized and started.
* @note The default value is calculated for a 72MHz system clock from
* a 8MHz crystal using the PLL.
*/
#if !defined(STM32_SW) || defined(__DOXYGEN__)
#define STM32_SW STM32_SW_PLL
#endif
/**
* @brief Clock source for the PLL.
* @note This setting has only effect if the PLL is selected as the
* system clock source.
* @note The default value is calculated for a 72MHz system clock from
* a 8MHz crystal using the PLL.
*/
#if !defined(STM32_PLLSRC) || defined(__DOXYGEN__)
#define STM32_PLLSRC STM32_PLLSRC_HSE
#endif
/**
* @brief Crystal PLL pre-divider.
* @note This setting has only effect if the PLL is selected as the
* system clock source.
* @note The default value is calculated for a 72MHz system clock from
* a 8MHz crystal using the PLL.
*/
#if !defined(STM32_PLLXTPRE) || defined(__DOXYGEN__)
#define STM32_PLLXTPRE STM32_PLLXTPRE_DIV1
#endif
/**
* @brief PLL multiplier value.
* @note The allowed range is 2...16.
* @note The default value is calculated for a 72MHz system clock from
* a 8MHz crystal using the PLL.
*/
#if !defined(STM32_PLLMUL_VALUE) || defined(__DOXYGEN__)
#define STM32_PLLMUL_VALUE 9
#endif
/**
* @brief AHB prescaler value.
* @note The default value is calculated for a 72MHz system clock from
* a 8MHz crystal using the PLL.
*/
#if !defined(STM32_HPRE) || defined(__DOXYGEN__)
#define STM32_HPRE STM32_HPRE_DIV1
#endif
/**
* @brief APB1 prescaler value.
*/
#if !defined(STM32_PPRE1) || defined(__DOXYGEN__)
#define STM32_PPRE1 STM32_PPRE1_DIV2
#endif
/**
* @brief APB2 prescaler value.
*/
#if !defined(STM32_PPRE2) || defined(__DOXYGEN__)
#define STM32_PPRE2 STM32_PPRE2_DIV2
#endif
/**
* @brief ADC prescaler value.
*/
#if !defined(STM32_ADCPRE) || defined(__DOXYGEN__)
#define STM32_ADCPRE STM32_ADCPRE_DIV4
#endif
/**
* @brief MCO pin setting.
*/
#if !defined(STM32_MCO) || defined(__DOXYGEN__)
#define STM32_MCO STM32_MCO_NOCLOCK
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/* HSE prescaler setting check.*/
#if (STM32_PLLXTPRE != STM32_PLLXTPRE_DIV1) && \
(STM32_PLLXTPRE != STM32_PLLXTPRE_DIV2)
#error "invalid STM32_PLLXTPRE value specified"
#endif
/**
* @brief PLLMUL field.
*/
#if ((STM32_PLLMUL_VALUE >= 2) && (STM32_PLLMUL_VALUE <= 16)) || \
defined(__DOXYGEN__)
#define STM32_PLLMUL ((STM32_PLLMUL_VALUE - 2) << 18)
#else
#error "invalid STM32_PLLMUL_VALUE value specified"
#endif
/**
* @brief PLL input clock frequency.
*/
#if (STM32_PLLSRC == STM32_PLLSRC_HSE) || defined(__DOXYGEN__)
#if STM32_PLLXTPRE == STM32_PLLXTPRE_DIV1
#define STM32_PLLCLKIN (STM32_HSECLK / 1)
#else
#define STM32_PLLCLKIN (STM32_HSECLK / 2)
#endif
#elif STM32_PLLSRC == STM32_PLLSRC_HSI
#define STM32_PLLCLKIN (STM32_HSICLK / 2)
#else
#error "invalid STM32_PLLSRC value specified"
#endif
/* PLL input frequency range check.*/
#if (STM32_PLLCLKIN < 3000000) || (STM32_PLLCLKIN > 12000000)
#error "STM32_PLLCLKIN outside acceptable range (3...12MHz)"
#endif
/**
* @brief PLL output clock frequency.
*/
#define STM32_PLLCLKOUT (STM32_PLLCLKIN * STM32_PLLMUL_VALUE)
/* PLL output frequency range check.*/
#if (STM32_PLLCLKOUT < 16000000) || (STM32_PLLCLKOUT > 72000000)
#error "STM32_PLLCLKOUT outside acceptable range (16...72MHz)"
#endif
/**
* @brief System clock source.
*/
#if (STM32_SW == STM32_SW_PLL) || defined(__DOXYGEN__)
#define STM32_SYSCLK STM32_PLLCLKOUT
#elif (STM32_SW == STM32_SW_HSI)
#define STM32_SYSCLK STM32_HSICLK
#elif (STM32_SW == STM32_SW_HSE)
#define STM32_SYSCLK STM32_HSECLK
#else
#error "invalid STM32_SYSCLK_SW value specified"
#endif
/* Check on the system clock.*/
#if STM32_SYSCLK > 72000000
#error "STM32_SYSCLK above maximum rated frequency (72MHz)"
#endif
/**
* @brief AHB frequency.
*/
#if (STM32_HPRE == STM32_HPRE_DIV1) || defined(__DOXYGEN__)
#define STM32_HCLK (STM32_SYSCLK / 1)
#elif STM32_HPRE == STM32_HPRE_DIV2
#define STM32_HCLK (STM32_SYSCLK / 2)
#elif STM32_HPRE == STM32_HPRE_DIV4
#define STM32_HCLK (STM32_SYSCLK / 4)
#elif STM32_HPRE == STM32_HPRE_DIV8
#define STM32_HCLK (STM32_SYSCLK / 8)
#elif STM32_HPRE == STM32_HPRE_DIV16
#define STM32_HCLK (STM32_SYSCLK / 16)
#elif STM32_HPRE == STM32_HPRE_DIV64
#define STM32_HCLK (STM32_SYSCLK / 64)
#elif STM32_HPRE == STM32_HPRE_DIV128
#define STM32_HCLK (STM32_SYSCLK / 128)
#elif STM32_HPRE == STM32_HPRE_DIV256
#define STM32_HCLK (STM32_SYSCLK / 256)
#elif STM32_HPRE == STM32_HPRE_DIV512
#define STM32_HCLK (STM32_SYSCLK / 512)
#else
#error "invalid STM32_HPRE value specified"
#endif
/* AHB frequency check.*/
#if STM32_HPRE > 72000000
#error "STM32_HPRE exceeding maximum frequency (72MHz)"
#endif
/**
* @brief APB1 frequency.
*/
#if (STM32_PPRE1 == STM32_PPRE1_DIV1) || defined(__DOXYGEN__)
#define STM32_PCLK1 (STM32_HCLK / 1)
#elif STM32_PPRE1 == STM32_PPRE1_DIV2
#define STM32_PCLK1 (STM32_HCLK / 2)
#elif STM32_PPRE1 == STM32_PPRE1_DIV4
#define STM32_PCLK1 (STM32_HCLK / 4)
#elif STM32_PPRE1 == STM32_PPRE1_DIV8
#define STM32_PCLK1 (STM32_HCLK / 8)
#elif STM32_PPRE1 == STM32_PPRE1_DIV16
#define STM32_PCLK1 (STM32_HCLK / 16)
#else
#error "invalid STM32_PPRE1 value specified"
#endif
/* APB1 frequency check.*/
#if STM32_PCLK2 > 36000000
#error "STM32_PCLK1 exceeding maximum frequency (36MHz)"
#endif
/**
* @brief APB2 frequency.
*/
#if (STM32_PPRE2 == STM32_PPRE2_DIV1) || defined(__DOXYGEN__)
#define STM32_PCLK2 (STM32_HCLK / 1)
#elif STM32_PPRE2 == STM32_PPRE2_DIV2
#define STM32_PCLK2 (STM32_HCLK / 2)
#elif STM32_PPRE2 == STM32_PPRE2_DIV4
#define STM32_PCLK2 (STM32_HCLK / 4)
#elif STM32_PPRE2 == STM32_PPRE2_DIV8
#define STM32_PCLK2 (STM32_HCLK / 8)
#elif STM32_PPRE2 == STM32_PPRE2_DIV16
#define STM32_PCLK2 (STM32_HCLK / 16)
#else
#error "invalid STM32_PPRE2 value specified"
#endif
/* APB2 frequency check.*/
#if STM32_PCLK2 > 72000000
#error "STM32_PCLK2 exceeding maximum frequency (72MHz)"
#endif
/**
* @brief ADC frequency.
*/
#if (STM32_ADCPRE == STM32_ADCPRE_DIV2) || defined(__DOXYGEN__)
#define STM32_ADCCLK (STM32_PCLK2 / 2)
#elif STM32_ADCPRE == STM32_ADCPRE_DIV4
#define STM32_ADCCLK (STM32_PCLK2 / 4)
#elif STM32_ADCPRE == STM32_ADCPRE_DIV6
#define STM32_ADCCLK (STM32_PCLK2 / 6)
#elif STM32_ADCPRE == STM32_ADCPRE_DIV8
#define STM32_ADCCLK (STM32_PCLK2 / 8)
#else
#error "invalid STM32_ADCPRE value specified"
#endif
/* ADC frequency check.*/
#if STM32_ADCCLK > 14000000
#error "STM32_ADCCLK exceeding maximum frequency (14MHz)"
#endif
/**
* @brief Flash settings.
*/
#if (STM32_HCLK <= 24000000) || defined(__DOXYGEN__)
#define STM32_FLASHBITS 0x00000010
#elif STM32_HCLK <= 48000000
#define STM32_FLASHBITS 0x00000011
#else
#define STM32_FLASHBITS 0x00000012
#endif
#endif /* _HAL_LLD_F10X_H_ */
/** @} */
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