959 lines
31 KiB
C
959 lines
31 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file STM32F0xx/hal_lld.h
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* @brief STM32F0xx HAL subsystem low level driver header.
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* @pre This module requires the following macros to be defined in the
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* @p board.h file:
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* - STM32_LSECLK.
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* - STM32_LSEDRV.
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* - STM32_LSE_BYPASS (optionally).
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* - STM32_HSECLK.
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* - STM32_HSE_BYPASS (optionally).
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* .
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* One of the following macros must also be defined:
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* - STM32F030x6, STM32F030x8, STM32F030xC, STM32F070x6,
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* STM32F070xB for Value Line devices.
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* - STM32F031x6, STM32F038xx, STM32F042x6, STM32F048xx
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* for Low Density devices.
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* - STM32F051x8, STM32F058xx, STM32F071xB, STM32F072xB,
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* STM32F078xx for Medium Density devices.
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* .
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*
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* @addtogroup HAL
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* @{
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*/
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#ifndef HAL_HAL_LLD_H
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#define HAL_HAL_LLD_H
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/*
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* Registry definitions.
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*/
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#include "stm32_registry.h"
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @name Platform identification macros
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* @{
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*/
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#if defined(STM32F051x8) || defined(__DOXYGEN__)
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#define PLATFORM_NAME "STM32F051x8 Entry Level Medium Density devices"
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#elif defined(STM32F058xx)
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#define PLATFORM_NAME "STM32F058xx Entry Level Medium Density devices"
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#elif defined(STM32F071xB)
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#define PLATFORM_NAME "STM32F071xB Entry Level Medium Density devices"
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#elif defined(STM32F072xB)
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#define PLATFORM_NAME "STM32F072xB Entry Level Medium Density devices"
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#elif defined(STM32F078xx)
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#define PLATFORM_NAME "STM32F078xx Entry Level Medium Density devices"
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#elif defined(STM32F031x6)
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#define PLATFORM_NAME "STM32F031x6 Entry Level Low Density devices"
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#elif defined(STM32F038xx)
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#define PLATFORM_NAME "STM32F038xx Entry Level Low Density devices"
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#elif defined(STM32F042x6)
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#define PLATFORM_NAME "STM32F042x6 Entry Level Low Density devices"
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#elif defined(STM32F048xx)
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#define PLATFORM_NAME "STM32F048xx Entry Level Low Density devices"
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#elif defined(STM32F030x6)
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#define PLATFORM_NAME "STM32F030x6 Entry Level Value Line devices"
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#elif defined(STM32F030x8)
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#define PLATFORM_NAME "STM32F030x8 Entry Level Value Line devices"
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#elif defined(STM32F030xC)
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#define PLATFORM_NAME "STM32F030xC Entry Level Value Line devices"
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#elif defined(STM32F070x6)
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#define PLATFORM_NAME "STM32F070x6 Entry Level Value Line devices"
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#elif defined(STM32F070xB)
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#define PLATFORM_NAME "STM32F070xB Entry Level Value Line devices"
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#elif defined(STM32F091xC)
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#define PLATFORM_NAME "STM32F091xC Entry Level Medium Density devices"
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#elif defined(STM32F098xx)
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#define PLATFORM_NAME "STM32F098xx Entry Level Medium Density devices"
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#else
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#error "STM32F0xx device not specified"
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#endif
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/** @} */
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/**
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* @name Absolute Maximum Ratings
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* @{
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*/
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/**
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* @brief Maximum system clock frequency.
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*/
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#define STM32_SYSCLK_MAX 48000000
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/**
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* @brief Maximum HSE clock frequency.
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*/
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#define STM32_HSECLK_MAX 32000000
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/**
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* @brief Minimum HSE clock frequency.
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*/
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#define STM32_HSECLK_MIN 1000000
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/**
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* @brief Maximum LSE clock frequency.
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*/
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#define STM32_LSECLK_MAX 1000000
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/**
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* @brief Minimum LSE clock frequency.
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*/
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#define STM32_LSECLK_MIN 32768
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/**
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* @brief Maximum PLLs input clock frequency.
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*/
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#define STM32_PLLIN_MAX 25000000
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/**
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* @brief Minimum PLLs input clock frequency.
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*/
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#define STM32_PLLIN_MIN 1000000
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/**
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* @brief Maximum PLL output clock frequency.
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*/
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#define STM32_PLLOUT_MAX 48000000
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/**
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* @brief Minimum PLL output clock frequency.
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*/
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#define STM32_PLLOUT_MIN 16000000
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/**
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* @brief Maximum APB clock frequency.
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*/
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#define STM32_PCLK_MAX 48000000
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/** @} */
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/**
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* @name Internal clock sources
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* @{
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*/
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#define STM32_HSICLK 8000000 /**< High speed internal clock. */
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#define STM32_HSI14CLK 14000000 /**< 14MHz speed internal clock.*/
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#define STM32_HSI48CLK 48000000 /**< 48MHz speed internal clock.*/
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#define STM32_LSICLK 40000 /**< Low speed internal clock. */
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/** @} */
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/**
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* @name PWR_CR register bits definitions
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* @{
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*/
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#define STM32_PLS_MASK (7 << 5) /**< PLS bits mask. */
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#define STM32_PLS_LEV0 (0 << 5) /**< PVD level 0. */
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#define STM32_PLS_LEV1 (1 << 5) /**< PVD level 1. */
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#define STM32_PLS_LEV2 (2 << 5) /**< PVD level 2. */
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#define STM32_PLS_LEV3 (3 << 5) /**< PVD level 3. */
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#define STM32_PLS_LEV4 (4 << 5) /**< PVD level 4. */
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#define STM32_PLS_LEV5 (5 << 5) /**< PVD level 5. */
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#define STM32_PLS_LEV6 (6 << 5) /**< PVD level 6. */
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#define STM32_PLS_LEV7 (7 << 5) /**< PVD level 7. */
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/** @} */
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/**
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* @name RCC_CFGR register bits definitions
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* @{
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*/
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#define STM32_SW_HSI (0 << 0) /**< SYSCLK source is HSI. */
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#define STM32_SW_HSE (1 << 0) /**< SYSCLK source is HSE. */
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#define STM32_SW_PLL (2 << 0) /**< SYSCLK source is PLL. */
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#define STM32_SW_HSI48 (3 << 0) /**< SYSCLK source is HSI48. */
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#define STM32_HPRE_DIV1 (0 << 4) /**< SYSCLK divided by 1. */
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#define STM32_HPRE_DIV2 (8 << 4) /**< SYSCLK divided by 2. */
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#define STM32_HPRE_DIV4 (9 << 4) /**< SYSCLK divided by 4. */
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#define STM32_HPRE_DIV8 (10 << 4) /**< SYSCLK divided by 8. */
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#define STM32_HPRE_DIV16 (11 << 4) /**< SYSCLK divided by 16. */
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#define STM32_HPRE_DIV64 (12 << 4) /**< SYSCLK divided by 64. */
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#define STM32_HPRE_DIV128 (13 << 4) /**< SYSCLK divided by 128. */
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#define STM32_HPRE_DIV256 (14 << 4) /**< SYSCLK divided by 256. */
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#define STM32_HPRE_DIV512 (15 << 4) /**< SYSCLK divided by 512. */
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#define STM32_PPRE_DIV1 (0 << 8) /**< HCLK divided by 1. */
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#define STM32_PPRE_DIV2 (4 << 8) /**< HCLK divided by 2. */
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#define STM32_PPRE_DIV4 (5 << 8) /**< HCLK divided by 4. */
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#define STM32_PPRE_DIV8 (6 << 8) /**< HCLK divided by 8. */
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#define STM32_PPRE_DIV16 (7 << 8) /**< HCLK divided by 16. */
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#define STM32_PLLSRC_HSI_DIV2 (0 << 15) /**< PLL clock source is HSI/2. */
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#define STM32_PLLSRC_HSI (1 << 15) /**< PLL clock source is HSI */
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#define STM32_PLLSRC_HSE (2 << 15) /**< PLL clock source is HSE. */
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#define STM32_PLLSRC_HSI48 (3 << 15) /**< PLL clock source is HSI48. */
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#define STM32_MCOSEL_NOCLOCK (0 << 24) /**< No clock on MCO pin. */
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#define STM32_MCOSEL_HSI14 (1 << 24) /**< HSI14 clock on MCO pin. */
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#define STM32_MCOSEL_LSI (2 << 24) /**< LSI clock on MCO pin. */
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#define STM32_MCOSEL_LSE (3 << 24) /**< LSE clock on MCO pin. */
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#define STM32_MCOSEL_SYSCLK (4 << 24) /**< SYSCLK on MCO pin. */
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#define STM32_MCOSEL_HSI (5 << 24) /**< HSI clock on MCO pin. */
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#define STM32_MCOSEL_HSE (6 << 24) /**< HSE clock on MCO pin. */
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#define STM32_MCOSEL_PLLDIV2 (7 << 24) /**< PLL/2 clock on MCO pin. */
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#define STM32_MCOSEL_HSI48 (8 << 24) /**< HSI48 clock on MCO pin. */
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#define STM32_MCOPRE_DIV1 (0 << 28) /**< MCO divided by 1. */
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#define STM32_MCOPRE_DIV2 (1 << 28) /**< MCO divided by 2. */
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#define STM32_MCOPRE_DIV4 (2 << 28) /**< MCO divided by 4. */
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#define STM32_MCOPRE_DIV8 (3 << 28) /**< MCO divided by 8. */
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#define STM32_MCOPRE_DIV16 (4 << 28) /**< MCO divided by 16. */
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#define STM32_MCOPRE_DIV32 (5 << 28) /**< MCO divided by 32. */
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#define STM32_MCOPRE_DIV64 (6 << 28) /**< MCO divided by 64. */
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#define STM32_MCOPRE_DIV128 (7 << 28) /**< MCO divided by 128. */
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#define STM32_PLLNODIV_MASK (1 << 31) /**< MCO PLL divider mask. */
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#define STM32_PLLNODIV_DIV2 (0 << 31) /**< MCO PLL is divided by two. */
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#define STM32_PLLNODIV_DIV1 (1 << 31) /**< MCO PLL is divided by one. */
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/** @} */
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/**
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* @name RCC_BDCR register bits definitions
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* @{
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*/
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#define STM32_RTCSEL_MASK (3 << 8) /**< RTC clock source mask. */
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#define STM32_RTCSEL_NOCLOCK (0 << 8) /**< No clock. */
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#define STM32_RTCSEL_LSE (1 << 8) /**< LSE used as RTC clock. */
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#define STM32_RTCSEL_LSI (2 << 8) /**< LSI used as RTC clock. */
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#define STM32_RTCSEL_HSEDIV (3 << 8) /**< HSE divided by 32 used as
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RTC clock. */
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/** @} */
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/**
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* @name RCC_CFGR3 register bits definitions
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* @{
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*/
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#define STM32_USART1SW_MASK (3 << 0) /**< USART1 clock source mask. */
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#define STM32_USART1SW_PCLK (0 << 0) /**< USART1 clock is PCLK. */
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#define STM32_USART1SW_SYSCLK (1 << 0) /**< USART1 clock is SYSCLK. */
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#define STM32_USART1SW_LSE (2 << 0) /**< USART1 clock is LSE. */
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#define STM32_USART1SW_HSI (3 << 0) /**< USART1 clock is HSI. */
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#define STM32_I2C1SW_MASK (1 << 4) /**< I2C clock source mask. */
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#define STM32_I2C1SW_HSI (0 << 4) /**< I2C clock is HSI. */
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#define STM32_I2C1SW_SYSCLK (1 << 4) /**< I2C clock is SYSCLK. */
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#define STM32_CECSW_MASK (1 << 6) /**< CEC clock source mask. */
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#define STM32_CECSW_HSI (0 << 6) /**< CEC clock is HSI/244. */
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#define STM32_CECSW_LSE (1 << 6) /**< CEC clock is LSE. */
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#define STM32_CECSW_OFF 0xFFFFFFFF /**< CEC clock is not required. */
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#define STM32_USBSW_MASK (1 << 7) /**< USB clock source mask. */
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#define STM32_USBSW_HSI48 (0 << 7) /**< USB clock is HSI48. */
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#define STM32_USBSW_PCLK (1 << 7) /**< USB clock is PCLK. */
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/** @} */
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @name Configuration options
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* @{
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*/
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/**
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* @brief Disables the PWR/RCC initialization in the HAL.
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*/
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#if !defined(STM32_NO_INIT) || defined(__DOXYGEN__)
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#define STM32_NO_INIT FALSE
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#endif
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/**
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* @brief Enables or disables the programmable voltage detector.
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*/
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#if !defined(STM32_PVD_ENABLE) || defined(__DOXYGEN__)
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#define STM32_PVD_ENABLE FALSE
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#endif
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/**
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* @brief Sets voltage level for programmable voltage detector.
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*/
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#if !defined(STM32_PLS) || defined(__DOXYGEN__)
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#define STM32_PLS STM32_PLS_LEV0
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#endif
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/**
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* @brief Enables or disables the HSI clock source.
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*/
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#if !defined(STM32_HSI_ENABLED) || defined(__DOXYGEN__)
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#define STM32_HSI_ENABLED TRUE
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#endif
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/**
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* @brief Enables or disables the HSI14 clock source.
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*/
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#if !defined(STM32_HSI14_ENABLED) || defined(__DOXYGEN__)
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#define STM32_HSI14_ENABLED TRUE
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#endif
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/**
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* @brief Enables or disables the HSI48 clock source.
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*/
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#if !defined(STM32_HSI48_ENABLED) || defined(__DOXYGEN__)
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#define STM32_HSI48_ENABLED FALSE
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#endif
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/**
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* @brief Enables or disables the LSI clock source.
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*/
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#if !defined(STM32_LSI_ENABLED) || defined(__DOXYGEN__)
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#define STM32_LSI_ENABLED FALSE
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#endif
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/**
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* @brief Enables or disables the HSE clock source.
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*/
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#if !defined(STM32_HSE_ENABLED) || defined(__DOXYGEN__)
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#define STM32_HSE_ENABLED TRUE
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#endif
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/**
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* @brief Enables or disables the LSE clock source.
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*/
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#if !defined(STM32_LSE_ENABLED) || defined(__DOXYGEN__)
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#define STM32_LSE_ENABLED FALSE
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#endif
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/**
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* @brief Main clock source selection.
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* @note If the selected clock source is not the PLL then the PLL is not
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* initialized and started.
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* @note The default value is calculated for a 48MHz system clock from
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* a 8MHz crystal using the PLL.
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*/
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#if !defined(STM32_SW) || defined(__DOXYGEN__)
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#define STM32_SW STM32_SW_PLL
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#endif
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/**
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* @brief Clock source for the PLL.
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* @note This setting has only effect if the PLL is selected as the
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* system clock source.
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* @note The default value is calculated for a 48MHz system clock from
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* a 8MHz crystal using the PLL.
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*/
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#if !defined(STM32_PLLSRC) || defined(__DOXYGEN__)
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#define STM32_PLLSRC STM32_PLLSRC_HSE
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#endif
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/**
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* @brief Crystal PLL pre-divider.
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* @note This setting has only effect if the PLL is selected as the
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* system clock source.
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* @note The default value is calculated for a 72MHz system clock from
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* a 8MHz crystal using the PLL.
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*/
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#if !defined(STM32_PREDIV_VALUE) || defined(__DOXYGEN__)
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#define STM32_PREDIV_VALUE 1
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#endif
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/**
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* @brief PLL multiplier value.
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* @note The allowed range is 2...16.
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* @note The default value is calculated for a 48MHz system clock from
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* a 8MHz crystal using the PLL.
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*/
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#if !defined(STM32_PLLMUL_VALUE) || defined(__DOXYGEN__)
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#define STM32_PLLMUL_VALUE 6
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#endif
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/**
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* @brief AHB prescaler value.
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* @note The default value is calculated for a 48MHz system clock from
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* a 8MHz crystal using the PLL.
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*/
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#if !defined(STM32_HPRE) || defined(__DOXYGEN__)
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#define STM32_HPRE STM32_HPRE_DIV1
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#endif
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/**
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* @brief APB1 prescaler value.
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*/
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#if !defined(STM32_PPRE) || defined(__DOXYGEN__)
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#define STM32_PPRE STM32_PPRE_DIV1
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#endif
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/**
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* @brief MCO pin setting.
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*/
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#if !defined(STM32_MCOSEL) || defined(__DOXYGEN__)
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#define STM32_MCOSEL STM32_MCOSEL_NOCLOCK
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#endif
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/**
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* @brief MCO divider setting.
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*/
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#if !defined(STM32_MCOPRE) || defined(__DOXYGEN__)
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#define STM32_MCOPRE STM32_MCOPRE_DIV1
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#endif
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/**
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* @brief MCO PLL divider setting.
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*/
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#if !defined(STM32_PLLNODIV) || defined(__DOXYGEN__)
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#define STM32_PLLNODIV STM32_PLLNODIV_DIV2
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#endif
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/**
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* @brief USB Clock source.
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*/
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#if !defined(STM32_USBSW) || defined(__DOXYGEN__)
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#define STM32_USBSW STM32_USBSW_HSI48
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#endif
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/**
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* @brief CEC clock source.
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*/
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#if !defined(STM32_CECSW) || defined(__DOXYGEN__)
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#define STM32_CECSW STM32_CECSW_HSI
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#endif
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/**
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* @brief I2C1 clock source.
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*/
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#if !defined(STM32_I2C1SW) || defined(__DOXYGEN__)
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#define STM32_I2C1SW STM32_I2C1SW_HSI
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#endif
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/**
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* @brief USART1 clock source.
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*/
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#if !defined(STM32_USART1SW) || defined(__DOXYGEN__)
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#define STM32_USART1SW STM32_USART1SW_PCLK
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#endif
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/**
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* @brief RTC clock source.
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*/
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#if !defined(STM32_RTCSEL) || defined(__DOXYGEN__)
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#define STM32_RTCSEL STM32_RTCSEL_LSI
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#endif
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/** @} */
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*
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* Configuration-related checks.
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*/
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#if !defined(STM32F0xx_MCUCONF)
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#error "Using a wrong mcuconf.h file, STM32F0xx_MCUCONF not defined"
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#endif
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/*
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|
* 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_CECSW == STM32_CECSW_HSI
|
|
#error "HSI not enabled, required by STM32_CECSW"
|
|
#endif
|
|
|
|
#if STM32_I2C1SW == STM32_I2C1SW_HSI
|
|
#error "HSI not enabled, required by STM32_I2C1SW"
|
|
#endif
|
|
|
|
#if STM32_USART1SW == STM32_USART1SW_HSI
|
|
#error "HSI not enabled, required by STM32_USART1SW"
|
|
#endif
|
|
|
|
#if (STM32_SW == STM32_SW_PLL) && \
|
|
(STM32_PLLSRC == STM32_PLLSRC_HSI_DIV2) || \
|
|
(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_DIV2) || \
|
|
(STM32_PLLSRC == STM32_PLLSRC_HSI)))
|
|
#error "HSI not enabled, required by STM32_MCOSEL"
|
|
#endif
|
|
|
|
#endif /* !STM32_HSI_ENABLED */
|
|
|
|
/*
|
|
* HSI14 related checks.
|
|
*/
|
|
#if STM32_HSI14_ENABLED
|
|
#else /* !STM32_HSI14_ENABLED */
|
|
|
|
#if STM32_MCOSEL == STM32_MCOSEL_HSI14
|
|
#error "HSI14 not enabled, required by STM32_MCOSEL"
|
|
#endif
|
|
|
|
#endif /* !STM32_HSI14_ENABLED */
|
|
|
|
/*
|
|
* HSI48 related checks.
|
|
*/
|
|
#if STM32_HSI48_ENABLED
|
|
#else /* !STM32_HSI48_ENABLED */
|
|
|
|
#if STM32_SW == STM32_SW_HSI48
|
|
#error "HSI48 not enabled, required by STM32_SW"
|
|
#endif
|
|
|
|
#if (STM32_MCOSEL == STM32_MCOSEL_HSI48) || \
|
|
((STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) && \
|
|
((STM32_PLLSRC == STM32_PLLSRC_HSI_DIV2) || \
|
|
(STM32_PLLSRC == STM32_PLLSRC_HSI48)))
|
|
#error "HSI48 not enabled, required by STM32_MCOSEL"
|
|
#endif
|
|
|
|
#if (STM32_SW == STM32_SW_PLL) && (STM32_PLLSRC == STM32_PLLSRC_HSI48)
|
|
#error "HSI48 not enabled, required by STM32_SW and STM32_PLLSRC"
|
|
#endif
|
|
|
|
#endif /* !STM32_HSI48_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 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 (STM32_LSECLK == 0)
|
|
#error "LSE frequency 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_CECSW == STM32_CECSW_LSE
|
|
#error "LSE not enabled, required by STM32_CECSW"
|
|
#endif
|
|
|
|
#if STM32_USART1SW == STM32_USART1SW_LSE
|
|
#error "LSE not enabled, required by STM32_USART1SW"
|
|
#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_USBSW == STM32_USBSW_PCLK) || \
|
|
(STM32_MCOSEL == STM32_MCOSEL_PLLDIV2) || \
|
|
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_DIV2
|
|
#define STM32_PLLCLKIN (STM32_HSICLK / 2)
|
|
#elif STM32_PLLSRC == STM32_PLLSRC_HSI
|
|
#define STM32_PLLCLKIN (STM32_HSICLK / STM32_PREDIV_VALUE)
|
|
#elif STM32_PLLSRC == STM32_PLLSRC_HSI48
|
|
#define STM32_PLLCLKIN (STM32_HSI48CLK / STM32_PREDIV_VALUE)
|
|
#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_HSI48)
|
|
#define STM32_SYSCLK STM32_HSI48CLK
|
|
#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 APB frequency.
|
|
*/
|
|
#if (STM32_PPRE == STM32_PPRE_DIV1) || defined(__DOXYGEN__)
|
|
#define STM32_PCLK (STM32_HCLK / 1)
|
|
#elif STM32_PPRE == STM32_PPRE_DIV2
|
|
#define STM32_PCLK (STM32_HCLK / 2)
|
|
#elif STM32_PPRE == STM32_PPRE_DIV4
|
|
#define STM32_PCLK (STM32_HCLK / 4)
|
|
#elif STM32_PPRE == STM32_PPRE_DIV8
|
|
#define STM32_PCLK (STM32_HCLK / 8)
|
|
#elif STM32_PPRE == STM32_PPRE_DIV16
|
|
#define STM32_PCLK (STM32_HCLK / 16)
|
|
#else
|
|
#error "invalid STM32_PPRE value specified"
|
|
#endif
|
|
|
|
/* APB frequency check.*/
|
|
#if STM32_PCLK > STM32_PCLK_MAX
|
|
#error "STM32_PCLK exceeding maximum frequency (STM32_PCLK_MAX)"
|
|
#endif
|
|
|
|
/* STM32_PLLNODIV check.*/
|
|
#if (STM32_PLLNODIV != STM32_PLLNODIV_DIV2) && \
|
|
(STM32_PLLNODIV != STM32_PLLNODIV_DIV1)
|
|
#error "invalid STM32_PLLNODIV value specified"
|
|
#endif
|
|
|
|
/**
|
|
* @brief MCO clock before divider.
|
|
*/
|
|
#if (STM32_MCOSEL == STM32_MCOSEL_NOCLOCK) || defined(__DOXYGEN__)
|
|
#define STM32_MCODIVCLK 0
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_HSI14
|
|
#define STM32_MCODIVCLK STM32_HSI14CLK
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_LSI
|
|
#define STM32_MCODIVCLK STM32_LSICLK
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_LSE
|
|
#define STM32_MCODIVCLK STM32_LSECLK
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_SYSCLK
|
|
#define STM32_MCODIVCLK STM32_SYSCLK
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_HSI
|
|
#define STM32_MCODIVCLK STM32_HSICLK
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_HSE
|
|
#define STM32_MCODIVCLK STM32_HSECLK
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_PLLDIV2
|
|
#if STM32_PLLNODIV == STM32_PLLNODIV_DIV2
|
|
#define STM32_MCODIVCLK (STM32_PLLCLKOUT / 2)
|
|
#else
|
|
#define STM32_MCODIVCLK (STM32_PLLCLKOUT / 1)
|
|
#endif
|
|
#elif STM32_MCOSEL == STM32_MCOSEL_HSI48
|
|
#define STM32_MCODIVCLK STM32_HSI48CLK
|
|
#else
|
|
#error "invalid STM32_MCOSEL value specified"
|
|
#endif
|
|
|
|
/**
|
|
* @brief MCO output pin clock.
|
|
*/
|
|
#if (STM32_MCOPRE == STM32_MCOPRE_DIV1) || defined(__DOXYGEN__)
|
|
#define STM32_MCOCLK STM32_MCODIVCLK
|
|
#elif STM32_MCOPRE == STM32_MCOPRE_DIV2
|
|
#define STM32_MCOCLK (STM32_MCODIVCLK / 2)
|
|
#elif STM32_MCOPRE == STM32_MCOPRE_DIV4
|
|
#define STM32_MCOCLK (STM32_MCODIVCLK / 4)
|
|
#elif STM32_MCOPRE == STM32_MCOPRE_DIV8
|
|
#define STM32_MCOCLK (STM32_MCODIVCLK / 8)
|
|
#elif STM32_MCOPRE == STM32_MCOPRE_DIV16
|
|
#define STM32_MCOCLK (STM32_MCODIVCLK / 16)
|
|
#else
|
|
#error "invalid STM32_MCOPRE value specified"
|
|
#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 USB frequency.
|
|
*/
|
|
#if (STM32_USBSW == STM32_USBSW_HSI48) || defined(__DOXYGEN__)
|
|
#define STM32_USBCLK STM32_HSI48CLK
|
|
#elif STM32_USBSW == STM32_USBSW_PCLK
|
|
#define STM32_USBCLK STM32_PLLCLKOUT
|
|
#else
|
|
#error "invalid source selected for USB clock"
|
|
#endif
|
|
|
|
/**
|
|
* @brief CEC frequency.
|
|
*/
|
|
#if (STM32_CECSW == STM32_CECSW_HSI) || defined(__DOXYGEN__)
|
|
#define STM32_CECCLK STM32_HSICLK
|
|
#elif STM32_CECSW == STM32_CECSW_LSE
|
|
#define STM32_CECCLK STM32_LSECLK
|
|
#elif STM32_CECSW == STM32_CECSW_OFF
|
|
#define STM32_CECCLK 0
|
|
#else
|
|
#error "invalid source selected for CEC clock"
|
|
#endif
|
|
|
|
/**
|
|
* @brief I2C1 frequency.
|
|
*/
|
|
#if (STM32_I2C1SW == STM32_I2C1SW_HSI) || defined(__DOXYGEN__)
|
|
#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 USART1 frequency.
|
|
*/
|
|
#if (STM32_USART1SW == STM32_USART1SW_PCLK) || defined(__DOXYGEN__)
|
|
#define STM32_USART1CLK STM32_PCLK
|
|
#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.
|
|
*/
|
|
#define STM32_USART2CLK STM32_PCLK
|
|
|
|
/**
|
|
* @brief USART3 frequency.
|
|
*/
|
|
#define STM32_USART3CLK STM32_PCLK
|
|
|
|
/**
|
|
* @brief USART4 frequency.
|
|
*/
|
|
#define STM32_UART4CLK STM32_PCLK
|
|
|
|
/**
|
|
* @brief USART5 frequency.
|
|
*/
|
|
#define STM32_UART5CLK STM32_PCLK
|
|
|
|
/**
|
|
* @brief USART6 frequency.
|
|
*/
|
|
#define STM32_USART6CLK STM32_PCLK
|
|
|
|
/**
|
|
* @brief Timers clock.
|
|
*/
|
|
#if (STM32_PPRE == STM32_PPRE_DIV1) || defined(__DOXYGEN__)
|
|
#define STM32_TIMCLK1 (STM32_PCLK * 1)
|
|
#define STM32_TIMCLK2 (STM32_PCLK * 1)
|
|
#else
|
|
#define STM32_TIMCLK1 (STM32_PCLK * 2)
|
|
#define STM32_TIMCLK2 (STM32_PCLK * 2)
|
|
#endif
|
|
|
|
/**
|
|
* @brief Flash settings.
|
|
*/
|
|
#if (STM32_HCLK <= 24000000) || defined(__DOXYGEN__)
|
|
#define STM32_FLASHBITS 0x00000010
|
|
#else
|
|
#define STM32_FLASHBITS 0x00000011
|
|
#endif
|
|
|
|
/*
|
|
* For compatibility with driver assuming a specific PPRE clock.
|
|
*/
|
|
#define STM32_PCLK1 STM32_PCLK
|
|
#define STM32_PCLK2 STM32_PCLK
|
|
|
|
/*===========================================================================*/
|
|
/* Driver data structures and types. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver macros. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* External declarations. */
|
|
/*===========================================================================*/
|
|
|
|
/* Various helpers.*/
|
|
#include "nvic.h"
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#include "stm32_isr.h"
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#include "stm32_dma.h"
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#include "stm32_rcc.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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void hal_lld_init(void);
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void stm32_clock_init(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_HAL_LLD_H */
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/** @} */
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