/* ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ /** * @file STM32F37x/hal_lld.h * @brief STM32F37x HAL subsystem low level driver header. * @pre This module requires the following macros to be defined in the * @p board.h file: * - STM32_LSECLK. * - STM32_LSEDRV. * - STM32_LSE_BYPASS (optionally). * - STM32_HSECLK. * - STM32_HSE_BYPASS (optionally). * . * One of the following macros must also be defined: * - STM32F373xC for Analog & DSP devices. * - STM32F378xx for Analog & DSP devices. * . * * @addtogroup HAL * @{ */ #ifndef HAL_LLD_H #define HAL_LLD_H /*===========================================================================*/ /* Driver constants. */ /*===========================================================================*/ /** * @brief Requires use of SPIv2 driver model. */ #define HAL_LLD_SELECT_SPI_V2 TRUE /** * @name Platform identification macros * @{ */ #if defined(STM32F373xC) || defined(__DOXYGEN__) #define PLATFORM_NAME "STM32F373xC Analog & DSP" #elif defined(STM32F378xx) #define PLATFORM_NAME "STM32F378xx Analog & DSP" #else #error "STM32F7x device not specified" #endif /** * @brief Sub-family identifier. */ #if !defined(STM32F37X) || defined(__DOXYGEN__) #define STM32F37X #endif /** @} */ /** * @name Absolute Maximum Ratings * @{ */ /** * @brief Maximum system clock frequency. */ #define STM32_SYSCLK_MAX 72000000 /** * @brief Maximum HSE clock frequency. */ #define STM32_HSECLK_MAX 32000000 /** * @brief Minimum HSE clock frequency. */ #define STM32_HSECLK_MIN 1000000 /** * @brief Maximum LSE clock frequency. */ #define STM32_LSECLK_MAX 1000000 /** * @brief Minimum LSE clock frequency. */ #define STM32_LSECLK_MIN 32768 /** * @brief Maximum PLLs input clock frequency. */ #define STM32_PLLIN_MAX 24000000 /** * @brief Minimum PLLs input clock frequency. */ #define STM32_PLLIN_MIN 1000000 /** * @brief Maximum PLL output clock frequency. */ #define STM32_PLLOUT_MAX 72000000 /** * @brief Minimum PLL output clock frequency. */ #define STM32_PLLOUT_MIN 16000000 /** * @brief Maximum APB1 clock frequency. */ #define STM32_PCLK1_MAX 36000000 /** * @brief Maximum APB2 clock frequency. */ #define STM32_PCLK2_MAX 72000000 /** * @brief Maximum ADC clock frequency. */ #define STM32_ADCCLK_MAX 14000000 /** * @brief Minimum ADC clock frequency. */ #define STM32_ADCCLK_MIN 600000 /** * @brief Maximum SDADC clock frequency in fast mode. */ #define STM32_SDADCCLK_FAST_MAX 6000000 /** * @brief Maximum SDADC clock frequency in slow mode. */ #define STM32_SDADCCLK_SLOW_MAX 1500000 /** * @brief Minimum SDADC clock frequency. */ #define STM32_SDADCCLK_MIN 500000 /** @} */ /** * @name Internal clock sources * @{ */ #define STM32_HSICLK 8000000 /**< High speed internal clock. */ #define STM32_LSICLK 40000 /**< Low speed internal clock. */ /** @} */ /** * @name PWR_CR register bits definitions * @{ */ #define STM32_PLS_MASK (7U << 5) /**< PLS bits mask. */ #define STM32_PLS_LEV0 (0U << 5) /**< PVD level 0. */ #define STM32_PLS_LEV1 (1U << 5) /**< PVD level 1. */ #define STM32_PLS_LEV2 (2U << 5) /**< PVD level 2. */ #define STM32_PLS_LEV3 (3U << 5) /**< PVD level 3. */ #define STM32_PLS_LEV4 (4U << 5) /**< PVD level 4. */ #define STM32_PLS_LEV5 (5U << 5) /**< PVD level 5. */ #define STM32_PLS_LEV6 (6U << 5) /**< PVD level 6. */ #define STM32_PLS_LEV7 (7U << 5) /**< PVD level 7. */ /** @} */ /** * @name RCC_CFGR register bits definitions * @{ */ #define STM32_SW_HSI (0U << 0) /**< SYSCLK source is HSI. */ #define STM32_SW_HSE (1U << 0) /**< SYSCLK source is HSE. */ #define STM32_SW_PLL (2U << 0) /**< SYSCLK source is PLL. */ #define STM32_HPRE_DIV1 (0U << 4) /**< SYSCLK divided by 1. */ #define STM32_HPRE_DIV2 (8u << 4) /**< SYSCLK divided by 2. */ #define STM32_HPRE_DIV4 (9U << 4) /**< SYSCLK divided by 4. */ #define STM32_HPRE_DIV8 (10U << 4) /**< SYSCLK divided by 8. */ #define STM32_HPRE_DIV16 (11U << 4) /**< SYSCLK divided by 16. */ #define STM32_HPRE_DIV64 (12U << 4) /**< SYSCLK divided by 64. */ #define STM32_HPRE_DIV128 (13U << 4) /**< SYSCLK divided by 128. */ #define STM32_HPRE_DIV256 (14U << 4) /**< SYSCLK divided by 256. */ #define STM32_HPRE_DIV512 (15U << 4) /**< SYSCLK divided by 512. */ #define STM32_PPRE1_DIV1 (0U << 8) /**< HCLK divided by 1. */ #define STM32_PPRE1_DIV2 (4U << 8) /**< HCLK divided by 2. */ #define STM32_PPRE1_DIV4 (5U << 8) /**< HCLK divided by 4. */ #define STM32_PPRE1_DIV8 (6U << 8) /**< HCLK divided by 8. */ #define STM32_PPRE1_DIV16 (7U << 8) /**< HCLK divided by 16. */ #define STM32_PPRE2_DIV1 (0U << 11) /**< HCLK divided by 1. */ #define STM32_PPRE2_DIV2 (4U << 11) /**< HCLK divided by 2. */ #define STM32_PPRE2_DIV4 (5U << 11) /**< HCLK divided by 4. */ #define STM32_PPRE2_DIV8 (6U << 11) /**< HCLK divided by 8. */ #define STM32_PPRE2_DIV16 (7U << 11) /**< HCLK divided by 16. */ #define STM32_ADCPRE_DIV2 (0U << 14) /**< PPRE2 divided by 2. */ #define STM32_ADCPRE_DIV4 (1U << 14) /**< PPRE2 divided by 4. */ #define STM32_ADCPRE_DIV6 (2U << 14) /**< PPRE2 divided by 6. */ #define STM32_ADCPRE_DIV8 (3U << 14) /**< PPRE2 divided by 8. */ #define STM32_PLLSRC_HSI (0U << 16) /**< PLL clock source is HSI/2. */ #define STM32_PLLSRC_HSE (1U << 16) /**< PLL clock source is HSE/PREDIV. */ #define STM32_USBPRE_DIV1P5 (0U << 22) /**< USB clock is PLLCLK/1.5. */ #define STM32_USBPRE_DIV1 (1U << 22) /**< USB clock is PLLCLK/1. */ #define STM32_MCOSEL_NOCLOCK (0U << 24) /**< No clock on MCO pin. */ #define STM32_MCOSEL_LSI (2U << 24) /**< LSI clock on MCO pin. */ #define STM32_MCOSEL_LSE (3U << 24) /**< LSE clock on MCO pin. */ #define STM32_MCOSEL_SYSCLK (4U << 24) /**< SYSCLK on MCO pin. */ #define STM32_MCOSEL_HSI (5U << 24) /**< HSI clock on MCO pin. */ #define STM32_MCOSEL_HSE (6U << 24) /**< HSE clock on MCO pin. */ #define STM32_MCOSEL_PLLDIV2 (7U << 24) /**< PLL/2 clock on MCO pin. */ #define STM32_SDPRE_DIV2 (16U << 27) /**< SYSCLK divided by 2. */ #define STM32_SDPRE_DIV4 (17U << 27) /**< SYSCLK divided by 4. */ #define STM32_SDPRE_DIV6 (18U << 27) /**< SYSCLK divided by 6. */ #define STM32_SDPRE_DIV8 (19U << 27) /**< SYSCLK divided by 8. */ #define STM32_SDPRE_DIV10 (20U << 27) /**< SYSCLK divided by 10. */ #define STM32_SDPRE_DIV12 (21U << 27) /**< SYSCLK divided by 12. */ #define STM32_SDPRE_DIV14 (22U << 27) /**< SYSCLK divided by 14. */ #define STM32_SDPRE_DIV16 (23U << 27) /**< SYSCLK divided by 16. */ #define STM32_SDPRE_DIV20 (24U << 27) /**< SYSCLK divided by 20. */ #define STM32_SDPRE_DIV24 (25U << 27) /**< SYSCLK divided by 24. */ #define STM32_SDPRE_DIV28 (26U << 27) /**< SYSCLK divided by 28. */ #define STM32_SDPRE_DIV32 (27U << 27) /**< SYSCLK divided by 32. */ #define STM32_SDPRE_DIV36 (28U << 27) /**< SYSCLK divided by 36. */ #define STM32_SDPRE_DIV40 (29U << 27) /**< SYSCLK divided by 40. */ #define STM32_SDPRE_DIV44 (30U << 27) /**< SYSCLK divided by 44. */ #define STM32_SDPRE_DIV48 (31U << 27) /**< SYSCLK divided by 48. */ /** @} */ /** * @name RCC_BDCR register bits definitions * @{ */ #define STM32_RTCSEL_MASK (3U << 8) /**< RTC clock source mask. */ #define STM32_RTCSEL_NOCLOCK (0U << 8) /**< No clock. */ #define STM32_RTCSEL_LSE (1U << 8) /**< LSE used as RTC clock. */ #define STM32_RTCSEL_LSI (2U << 8) /**< LSI used as RTC clock. */ #define STM32_RTCSEL_HSEDIV (3U << 8) /**< HSE divided by 32 used as RTC clock. */ /** @} */ /** * @name RCC_CFGR2 register bits definitions * @{ */ #define STM32_PREDIV_MASK (15U << 0) /**< PREDIV divisor mask. */ /** @} */ /** * @name RCC_CFGR3 register bits definitions * @{ */ #define STM32_USART1SW_MASK (3U << 0) /**< USART1 clock source mask. */ #define STM32_USART1SW_PCLK (0U << 0) /**< USART1 clock is PCLK. */ #define STM32_USART1SW_SYSCLK (1U << 0) /**< USART1 clock is SYSCLK. */ #define STM32_USART1SW_LSE (2U << 0) /**< USART1 clock is LSE. */ #define STM32_USART1SW_HSI (3U << 0) /**< USART1 clock is HSI. */ #define STM32_I2C1SW_MASK (1U << 4) /**< I2C1 clock source mask. */ #define STM32_I2C1SW_HSI (0U << 4) /**< I2C1 clock is HSI. */ #define STM32_I2C1SW_SYSCLK (1U << 4) /**< I2C1 clock is SYSCLK. */ #define STM32_I2C2SW_MASK (1U << 5) /**< I2C2 clock source mask. */ #define STM32_I2C2SW_HSI (0U << 5) /**< I2C2 clock is HSI. */ #define STM32_I2C2SW_SYSCLK (1U << 5) /**< I2C2 clock is SYSCLK. */ #define STM32_USART2SW_MASK (3U << 16) /**< USART2 clock source mask. */ #define STM32_USART2SW_PCLK (0U << 16) /**< USART2 clock is PCLK. */ #define STM32_USART2SW_SYSCLK (1U << 16) /**< USART2 clock is SYSCLK. */ #define STM32_USART2SW_LSE (2U << 16) /**< USART2 clock is LSE. */ #define STM32_USART2SW_HSI (3U << 16) /**< USART2 clock is HSI. */ #define STM32_USART3SW_MASK (3U << 18) /**< USART3 clock source mask. */ #define STM32_USART3SW_PCLK (0U << 18) /**< USART3 clock is PCLK. */ #define STM32_USART3SW_SYSCLK (1U << 18) /**< USART3 clock is SYSCLK. */ #define STM32_USART3SW_LSE (2U << 18) /**< USART3 clock is LSE. */ #define STM32_USART3SW_HSI (3U << 18) /**< USART3 clock is HSI. */ /** @} */ /*===========================================================================*/ /* Driver pre-compile time settings. */ /*===========================================================================*/ /** * @name Configuration options * @{ */ /** * @brief Disables the PWR/RCC initialization in the HAL. */ #if !defined(STM32_NO_INIT) || defined(__DOXYGEN__) #define STM32_NO_INIT FALSE #endif /** * @brief Enables or disables the programmable voltage detector. */ #if !defined(STM32_PVD_ENABLE) || defined(__DOXYGEN__) #define STM32_PVD_ENABLE FALSE #endif /** * @brief Sets voltage level for programmable voltage detector. */ #if !defined(STM32_PLS) || defined(__DOXYGEN__) #define STM32_PLS STM32_PLS_LEV0 #endif /** * @brief Enables or disables the HSI clock source. */ #if !defined(STM32_HSI_ENABLED) || defined(__DOXYGEN__) #define STM32_HSI_ENABLED TRUE #endif /** * @brief Enables or disables the LSI clock source. */ #if !defined(STM32_LSI_ENABLED) || defined(__DOXYGEN__) #define STM32_LSI_ENABLED TRUE #endif /** * @brief Enables or disables the HSE clock source. */ #if !defined(STM32_HSE_ENABLED) || defined(__DOXYGEN__) #define STM32_HSE_ENABLED TRUE #endif /** * @brief Enables or disables the LSE clock source. */ #if !defined(STM32_LSE_ENABLED) || defined(__DOXYGEN__) #define STM32_LSE_ENABLED FALSE #endif /** * @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_PREDIV_VALUE) || defined(__DOXYGEN__) #define STM32_PREDIV_VALUE 1 #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 MCO pin setting. */ #if !defined(STM32_MCOSEL) || defined(__DOXYGEN__) #define STM32_MCOSEL STM32_MCOSEL_NOCLOCK #endif /** * @brief ADC prescaler value. */ #if !defined(STM32_ADCPRE) || defined(__DOXYGEN__) #define STM32_ADCPRE STM32_ADCPRE_DIV4 #endif /** * @brief SDADC prescaler value. */ #if !defined(STM32_SDPRE) || defined(__DOXYGEN__) #define STM32_SDPRE STM32_SDPRE_DIV12 #endif /** * @brief USART1 clock source. */ #if !defined(STM32_USART1SW) || defined(__DOXYGEN__) #define STM32_USART1SW STM32_USART1SW_PCLK #endif /** * @brief USART2 clock source. */ #if !defined(STM32_USART2SW) || defined(__DOXYGEN__) #define STM32_USART2SW STM32_USART2SW_PCLK #endif /** * @brief USART3 clock source. */ #if !defined(STM32_USART3SW) || defined(__DOXYGEN__) #define STM32_USART3SW STM32_USART3SW_PCLK #endif /** * @brief I2C1 clock source. */ #if !defined(STM32_I2C1SW) || defined(__DOXYGEN__) #define STM32_I2C1SW STM32_I2C1SW_SYSCLK #endif /** * @brief I2C2 clock source. */ #if !defined(STM32_I2C2SW) || defined(__DOXYGEN__) #define STM32_I2C2SW STM32_I2C2SW_SYSCLK #endif /** * @brief RTC clock source. */ #if !defined(STM32_RTCSEL) || defined(__DOXYGEN__) #define STM32_RTCSEL STM32_RTCSEL_LSI #endif /** * @brief USB clock setting. */ #if !defined(STM32_USB_CLOCK_REQUIRED) || defined(__DOXYGEN__) #define STM32_USB_CLOCK_REQUIRED TRUE #endif /** * @brief USB prescaler initialization. */ #if !defined(STM32_USBPRE) || defined(__DOXYGEN__) #define STM32_USBPRE STM32_USBPRE_DIV1P5 #endif /** @} */ /*===========================================================================*/ /* Derived constants and error checks. */ /*===========================================================================*/ /* * Configuration-related checks. */ #if !defined(STM32F37x_MCUCONF) #error "Using a wrong mcuconf.h file, STM32F37x_MCUCONF not defined" #endif /* * HSI related checks. */ #if STM32_HSI_ENABLED #else /* !STM32_HSI_ENABLED */ #if STM32_SW == STM32_SW_HSI #error "HSI not enabled, required by STM32_SW" #endif #if STM32_USART1SW == STM32_USART1SW_HSI #error "HSI not enabled, required by STM32_USART1SW" #endif #if STM32_USART2SW == STM32_USART2SW_HSI #error "HSI not enabled, required by STM32_USART2SW" #endif #if STM32_USART3SW == STM32_USART3SW_HSI #error "HSI not enabled, required by STM32_USART3SW" #endif #if STM32_I2C1SW == STM32_I2C1SW_HSI #error "HSI not enabled, required by STM32_I2C1SW" #endif #if STM32_I2C2SW == STM32_I2C2SW_HSI #error "HSI not enabled, required by STM32_I2C2SW" #endif #if (STM32_SW == STM32_SW_PLL) && (STM32_PLLSRC == STM32_PLLSRC_HSI) #error "HSI not enabled, required by STM32_SW and STM32_PLLSRC" #endif #if (STM32_MCOSEL == STM32_MCOSEL_HSI) || \ ((STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) && \ (STM32_PLLSRC == STM32_PLLSRC_HSI)) #error "HSI not enabled, required by STM32_MCOSEL" #endif #endif /* !STM32_HSI_ENABLED */ /* * HSE related checks. */ #if STM32_HSE_ENABLED #if STM32_HSECLK == 0 #error "HSE frequency not defined" #elif (STM32_HSECLK < STM32_HSECLK_MIN) || (STM32_HSECLK > STM32_HSECLK_MAX) #error "STM32_HSECLK outside acceptable range (STM32_HSECLK_MIN...STM32_HSECLK_MAX)" #endif #else /* !STM32_HSE_ENABLED */ #if STM32_SW == STM32_SW_HSE #error "HSE not enabled, required by STM32_SW" #endif #if (STM32_SW == STM32_SW_PLL) && (STM32_PLLSRC == STM32_PLLSRC_HSE) #error "HSE not enabled, required by STM32_SW and STM32_PLLSRC" #endif #if (STM32_MCOSEL == STM32_MCOSEL_HSE) || \ ((STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) && \ (STM32_PLLSRC == STM32_PLLSRC_HSE)) #error "HSE not enabled, required by STM32_MCOSEL" #endif #if STM32_RTCSEL == STM32_RTCSEL_HSEDIV #error "HSE not enabled, required by STM32_RTCSEL" #endif #endif /* !STM32_HSE_ENABLED */ /* * LSI related checks. */ #if STM32_LSI_ENABLED #else /* !STM32_LSI_ENABLED */ #if HAL_USE_RTC && (STM32_RTCSEL == STM32_RTCSEL_LSI) #error "LSI not enabled, required by STM32_RTCSEL" #endif #endif /* !STM32_LSI_ENABLED */ /* * LSE related checks. */ #if STM32_LSE_ENABLED #if !defined(STM32_LSECLK) || (STM32_LSECLK == 0) #error "STM32_LSECLK not defined" #endif #if (STM32_LSECLK < STM32_LSECLK_MIN) || (STM32_LSECLK > STM32_LSECLK_MAX) #error "STM32_LSECLK outside acceptable range (STM32_LSECLK_MIN...STM32_LSECLK_MAX)" #endif #if !defined(STM32_LSEDRV) #error "STM32_LSEDRV not defined" #endif #if (STM32_LSEDRV >> 3) > 3 #error "STM32_LSEDRV outside acceptable range ((0<<3)...(3<<3))" #endif #if STM32_USART1SW == STM32_USART1SW_LSE #error "LSE not enabled, required by STM32_USART1SW" #endif #if STM32_USART2SW == STM32_USART2SW_LSE #error "LSE not enabled, required by STM32_USART2SW" #endif #if STM32_USART3SW == STM32_USART3SW_LSE #error "LSE not enabled, required by STM32_USART3SW" #endif #else /* !STM32_LSE_ENABLED */ #if STM32_RTCSEL == STM32_RTCSEL_LSE #error "LSE not enabled, required by STM32_RTCSEL" #endif #endif /* !STM32_LSE_ENABLED */ /* PLL activation conditions.*/ #if (STM32_SW == STM32_SW_PLL) || \ (STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) || \ STM32_USB_CLOCK_REQUIRED || \ defined(__DOXYGEN__) /** * @brief PLL activation flag. */ #define STM32_ACTIVATE_PLL TRUE #else #define STM32_ACTIVATE_PLL FALSE #endif /* HSE prescaler setting check.*/ #if ((STM32_PREDIV_VALUE >= 1) || (STM32_PREDIV_VALUE <= 16)) #define STM32_PREDIV ((STM32_PREDIV_VALUE - 1) << 0) #else #error "invalid STM32_PREDIV 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__) #define STM32_PLLCLKIN (STM32_HSECLK / STM32_PREDIV_VALUE) #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 < STM32_PLLIN_MIN) || (STM32_PLLCLKIN > STM32_PLLIN_MAX) #error "STM32_PLLCLKIN outside acceptable range (STM32_PLLIN_MIN...STM32_PLLIN_MAX)" #endif /** * @brief PLL output clock frequency. */ #define STM32_PLLCLKOUT (STM32_PLLCLKIN * STM32_PLLMUL_VALUE) /* PLL output frequency range check.*/ #if (STM32_PLLCLKOUT < STM32_PLLOUT_MIN) || (STM32_PLLCLKOUT > STM32_PLLOUT_MAX) #error "STM32_PLLCLKOUT outside acceptable range (STM32_PLLOUT_MIN...STM32_PLLOUT_MAX)" #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_SW value specified" #endif /* Check on the system clock.*/ #if STM32_SYSCLK > STM32_SYSCLK_MAX #error "STM32_SYSCLK above maximum rated frequency (STM32_SYSCLK_MAX)" #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_HCLK > STM32_SYSCLK_MAX #error "STM32_HCLK exceeding maximum frequency (STM32_SYSCLK_MAX)" #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_PCLK1 > STM32_PCLK1_MAX #error "STM32_PCLK1 exceeding maximum frequency (STM32_PCLK1_MAX)" #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 > STM32_PCLK2_MAX #error "STM32_PCLK2 exceeding maximum frequency (STM32_PCLK2_MAX)" #endif /** * @brief RTC clock. */ #if (STM32_RTCSEL == STM32_RTCSEL_LSE) || defined(__DOXYGEN__) #define STM32_RTCCLK STM32_LSECLK #elif STM32_RTCSEL == STM32_RTCSEL_LSI #define STM32_RTCCLK STM32_LSICLK #elif STM32_RTCSEL == STM32_RTCSEL_HSEDIV #define STM32_RTCCLK (STM32_HSECLK / 32) #elif STM32_RTCSEL == STM32_RTCSEL_NOCLOCK #define STM32_RTCCLK 0 #else #error "invalid source selected for RTC clock" #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 maximum frequency check.*/ #if STM32_ADC_USE_ADC1 && (STM32_ADCCLK > STM32_ADCCLK_MAX) #error "STM32_ADCCLK exceeding maximum frequency (STM32_ADCCLK_MAX)" #endif /* ADC minimum frequency check.*/ #if STM32_ADC_USE_ADC1 && (STM32_ADCCLK < STM32_ADCCLK_MIN) #error "STM32_ADCCLK exceeding minimum frequency (STM32_ADCCLK_MIN)" #endif /** * @brief SDADC frequency. */ #if (STM32_SDPRE == STM32_SDPRE_DIV2) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 2) #elif (STM32_SDPRE == STM32_SDPRE_DIV4) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 4) #elif (STM32_SDPRE == STM32_SDPRE_DIV6) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 6) #elif (STM32_SDPRE == STM32_SDPRE_DIV8) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 8) #elif (STM32_SDPRE == STM32_SDPRE_DIV10) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 10) #elif (STM32_SDPRE == STM32_SDPRE_DIV12) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 12) #elif (STM32_SDPRE == STM32_SDPRE_DIV14) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 14) #elif (STM32_SDPRE == STM32_SDPRE_DIV16) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 16) #elif (STM32_SDPRE == STM32_SDPRE_DIV20) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 20) #elif (STM32_SDPRE == STM32_SDPRE_DIV24) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 24) #elif (STM32_SDPRE == STM32_SDPRE_DIV28) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 28) #elif (STM32_SDPRE == STM32_SDPRE_DIV32) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 32) #elif (STM32_SDPRE == STM32_SDPRE_DIV36) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 36) #elif (STM32_SDPRE == STM32_SDPRE_DIV40) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 40) #elif (STM32_SDPRE == STM32_SDPRE_DIV44) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 44) #elif (STM32_SDPRE == STM32_SDPRE_DIV48) || defined(__DOXYGEN__) #define STM32_SDADCCLK (STM32_SYSCLK / 48) #else #error "invalid STM32_SDPRE value specified" #endif /* SDADC maximum frequency check.*/ #if (STM32_ADC_USE_SDADC1 || \ STM32_ADC_USE_SDADC2 || \ STM32_ADC_USE_SDADC3) && (STM32_SDADCCLK > STM32_SDADCCLK_FAST_MAX) #error "STM32_SDADCCLK exceeding maximum frequency (STM32_SDADCCLK_FAST_MAX)" #endif /* SDADC minimum frequency check.*/ #if (STM32_ADC_USE_SDADC1 || \ STM32_ADC_USE_SDADC2 || \ STM32_ADC_USE_SDADC3) && \ (STM32_SDADCCLK < STM32_SDADCCLK_MIN) #error "STM32_SDADCCLK exceeding maximum frequency (STM32_SDADCCLK_MIN)" #endif /** * @brief I2C1 frequency. */ #if STM32_I2C1SW == STM32_I2C1SW_HSI #define STM32_I2C1CLK STM32_HSICLK #elif STM32_I2C1SW == STM32_I2C1SW_SYSCLK #define STM32_I2C1CLK STM32_SYSCLK #else #error "invalid source selected for I2C1 clock" #endif /** * @brief I2C2 frequency. */ #if STM32_I2C2SW == STM32_I2C2SW_HSI #define STM32_I2C2CLK STM32_HSICLK #elif STM32_I2C2SW == STM32_I2C2SW_SYSCLK #define STM32_I2C2CLK STM32_SYSCLK #else #error "invalid source selected for I2C2 clock" #endif /** * @brief USART1 frequency. */ #if STM32_USART1SW == STM32_USART1SW_PCLK #define STM32_USART1CLK STM32_PCLK2 #elif STM32_USART1SW == STM32_USART1SW_SYSCLK #define STM32_USART1CLK STM32_SYSCLK #elif STM32_USART1SW == STM32_USART1SW_LSE #define STM32_USART1CLK STM32_LSECLK #elif STM32_USART1SW == STM32_USART1SW_HSI #define STM32_USART1CLK STM32_HSICLK #else #error "invalid source selected for USART1 clock" #endif /** * @brief USART2 frequency. */ #if STM32_USART2SW == STM32_USART2SW_PCLK #define STM32_USART2CLK STM32_PCLK1 #elif STM32_USART2SW == STM32_USART2SW_SYSCLK #define STM32_USART2CLK STM32_SYSCLK #elif STM32_USART2SW == STM32_USART2SW_LSE #define STM32_USART2CLK STM32_LSECLK #elif STM32_USART2SW == STM32_USART2SW_HSI #define STM32_USART2CLK STM32_HSICLK #else #error "invalid source selected for USART2 clock" #endif /** * @brief USART3 frequency. */ #if STM32_USART3SW == STM32_USART3SW_PCLK #define STM32_USART3CLK STM32_PCLK1 #elif STM32_USART3SW == STM32_USART3SW_SYSCLK #define STM32_USART3CLK STM32_SYSCLK #elif STM32_USART3SW == STM32_USART3SW_LSE #define STM32_USART3CLK STM32_LSECLK #elif STM32_USART3SW == STM32_USART3SW_HSI #define STM32_USART3CLK STM32_HSICLK #else #error "invalid source selected for USART3 clock" #endif /** * @brief Timers 2, 3, 4, 5, 6, 7, 12, 13, 14, 18 frequency. */ #if (STM32_PPRE1 == STM32_PPRE1_DIV1) || defined(__DOXYGEN__) #define STM32_TIMCLK1 (STM32_PCLK1 * 1) #else #define STM32_TIMCLK1 (STM32_PCLK1 * 2) #endif /** * @brief Timers 15, 16, 17, 19 frequency. */ #if (STM32_PPRE2 == STM32_PPRE2_DIV1) || defined(__DOXYGEN__) #define STM32_TIMCLK2 (STM32_PCLK2 * 1) #else #define STM32_TIMCLK2 (STM32_PCLK2 * 2) #endif /** * @brief USB frequency. */ #if (STM32_USBPRE == STM32_USBPRE_DIV1P5) || defined(__DOXYGEN__) #define STM32_USBCLK ((STM32_PLLCLKOUT * 2) / 3) #elif (STM32_USBPRE == STM32_USBPRE_DIV1) #define STM32_USBCLK STM32_PLLCLKOUT #else #error "invalid STM32_USBPRE value specified" #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 /*===========================================================================*/ /* Driver data structures and types. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver macros. */ /*===========================================================================*/ /*===========================================================================*/ /* External declarations. */ /*===========================================================================*/ /* Various helpers.*/ #include "nvic.h" #include "cache.h" #include "mpu_v7m.h" #include "stm32_registry.h" #include "stm32_isr.h" #include "stm32_dma.h" #include "stm32_exti.h" #include "stm32_rcc.h" #include "stm32_tim.h" #ifdef __cplusplus extern "C" { #endif void hal_lld_init(void); void stm32_clock_init(void); #ifdef __cplusplus } #endif #endif /* HAL_LLD_H */ /** @} */