/** ****************************************************************************** * @file stm32f3xx_hal_rcc_ex.c * @author MCD Application Team * @version V1.1.0 * @date 12-Sept-2014 * @brief Extended RCC HAL module driver * This file provides firmware functions to manage the following * functionalities RCC Extended peripheral: * + Extended Clock Source configuration functions * ****************************************************************************** * @attention * *

© COPYRIGHT(c) 2014 STMicroelectronics

* * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f3xx_hal.h" /** @addtogroup STM32F3xx_HAL_Driver * @{ */ /** @defgroup RCCEx RCC Extended HAL module driver * @brief RCC Extended HAL module driver. * @{ */ #ifdef HAL_RCC_MODULE_ENABLED /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /** @defgroup RCCEx_Private_Define RCC Extended Private Define * @{ */ #define HSE_TIMEOUT_VALUE HSE_STARTUP_TIMEOUT #define HSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ #define LSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ #define PLL_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ #define CLOCKSWITCH_TIMEOUT_VALUE ((uint32_t)5000) /* 5 s */ /** * @} */ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /** @defgroup RCCEx_Private_Variables RCC Extented Private Variables * @{ */ const uint8_t PLLMULFactorTable[16] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16}; const uint8_t PredivFactorTable[16] = { 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11, 12, 13, 14, 15, 16}; /** * @} */ /* Private function prototypes -----------------------------------------------*/ /* Exported functions ---------------------------------------------------------*/ /** @defgroup RCCEx_Exported_Functions RCC Extended Exported Functions * @{ */ /** @defgroup RCCEx_Exported_Functions_Group1 Extended Peripheral Control functions * @brief Extended Peripheral Control functions * @verbatim =============================================================================== ##### Extended Peripheral Control functions ##### =============================================================================== [..] This subsection provides a set of functions allowing to control the RCC Clocks frequencies. [..] (@) Important note: Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select the RTC clock source; in this case the Backup domain will be reset in order to modify the RTC Clock source, as consequence RTC registers (including the backup registers) and RCC_BDCR register are set to their reset values. @endverbatim * @{ */ /** * @brief Initializes the RCC extended peripherals clocks according to the specified * parameters in the RCC_PeriphCLKInitTypeDef. * @param PeriphClkInit: pointer to an RCC_PeriphCLKInitTypeDef structure that * contains the configuration information for the Extended Peripherals clocks * (ADC, CEC, I2C, I2S, SDADC, HRTIM, TIM, USART, RTC and USB). * * @note Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select * the RTC clock source; in this case the Backup domain will be reset in * order to modify the RTC Clock source, as consequence RTC registers (including * the backup registers) and RCC_BDCR register are set to their reset values. * * @retval HAL status */ HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) { uint32_t tickstart = 0; uint32_t tmpreg = 0; /* Check the parameters */ assert_param(IS_RCC_PERIPHCLK(PeriphClkInit->PeriphClockSelection)); /*---------------------------- RTC configuration -------------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == (RCC_PERIPHCLK_RTC)) { /* Enable Power Clock*/ __PWR_CLK_ENABLE(); /* Enable write access to Backup domain */ SET_BIT(PWR->CR, PWR_CR_DBP); /* Wait for Backup domain Write protection disable */ tickstart = HAL_GetTick(); while((PWR->CR & PWR_CR_DBP) == RESET) { if((HAL_GetTick()-tickstart) > DBP_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } /* Reset the Backup domain only if the RTC Clock source selction is modified */ if((RCC->BDCR & RCC_BDCR_RTCSEL) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)) { /* Store the content of BDCR register before the reset of Backup Domain */ tmpreg = (RCC->BDCR & ~(RCC_BDCR_RTCSEL)); /* RTC Clock selection can be changed only if the Backup Domain is reset */ __HAL_RCC_BACKUPRESET_FORCE(); __HAL_RCC_BACKUPRESET_RELEASE(); /* Restore the Content of BDCR register */ RCC->BDCR = tmpreg; } /* If LSE is selected as RTC clock source, wait for LSE reactivation */ if(PeriphClkInit->RTCClockSelection == RCC_RTCCLKSOURCE_LSE) { /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till LSE is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) { if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection); } /*------------------------------- USART1 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART1) == RCC_PERIPHCLK_USART1) { /* Check the parameters */ assert_param(IS_RCC_USART1CLKSOURCE(PeriphClkInit->Usart1ClockSelection)); /* Configure the USART1 clock source */ __HAL_RCC_USART1_CONFIG(PeriphClkInit->Usart1ClockSelection); } /*----------------------------- USART2 Configuration --------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART2) == RCC_PERIPHCLK_USART2) { /* Check the parameters */ assert_param(IS_RCC_USART2CLKSOURCE(PeriphClkInit->Usart2ClockSelection)); /* Configure the USART2 clock source */ __HAL_RCC_USART2_CONFIG(PeriphClkInit->Usart2ClockSelection); } /*------------------------------ USART3 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART3) == RCC_PERIPHCLK_USART3) { /* Check the parameters */ assert_param(IS_RCC_USART3CLKSOURCE(PeriphClkInit->Usart3ClockSelection)); /* Configure the USART3 clock source */ __HAL_RCC_USART3_CONFIG(PeriphClkInit->Usart3ClockSelection); } /*------------------------------ I2C1 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C1) == RCC_PERIPHCLK_I2C1) { /* Check the parameters */ assert_param(IS_RCC_I2C1CLKSOURCE(PeriphClkInit->I2c1ClockSelection)); /* Configure the I2C1 clock source */ __HAL_RCC_I2C1_CONFIG(PeriphClkInit->I2c1ClockSelection); } #if defined(STM32F302xE) || defined(STM32F303xE) || \ defined(STM32F302xC) || defined(STM32F303xC) || \ defined(STM32F302x8) || \ defined(STM32F373xC) /*------------------------------ USB Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == RCC_PERIPHCLK_USB) { /* Check the parameters */ assert_param(IS_RCC_USBCLKSOURCE(PeriphClkInit->USBClockSelection)); /* Configure the USB clock source */ __HAL_RCC_USB_CONFIG(PeriphClkInit->USBClockSelection); } #endif /* STM32F302xE || STM32F303xE || */ /* STM32F302xC || STM32F303xC || */ /* STM32F302x8 || */ /* STM32F373xC */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) /*------------------------------ I2C2 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C2) == RCC_PERIPHCLK_I2C2) { /* Check the parameters */ assert_param(IS_RCC_I2C2CLKSOURCE(PeriphClkInit->I2c2ClockSelection)); /* Configure the I2C2 clock source */ __HAL_RCC_I2C2_CONFIG(PeriphClkInit->I2c2ClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx || */ /* STM32F373xC || STM32F378xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) /*------------------------------ I2C3 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C3) == RCC_PERIPHCLK_I2C3) { /* Check the parameters */ assert_param(IS_RCC_I2C3CLKSOURCE(PeriphClkInit->I2c3ClockSelection)); /* Configure the I2C3 clock source */ __HAL_RCC_I2C3_CONFIG(PeriphClkInit->I2c3ClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) /*------------------------------ UART4 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_UART4) == RCC_PERIPHCLK_UART4) { /* Check the parameters */ assert_param(IS_RCC_UART4CLKSOURCE(PeriphClkInit->Uart4ClockSelection)); /* Configure the UART4 clock source */ __HAL_RCC_UART4_CONFIG(PeriphClkInit->Uart4ClockSelection); } /*------------------------------ UART5 Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_UART5) == RCC_PERIPHCLK_UART5) { /* Check the parameters */ assert_param(IS_RCC_UART5CLKSOURCE(PeriphClkInit->Uart5ClockSelection)); /* Configure the UART5 clock source */ __HAL_RCC_UART5_CONFIG(PeriphClkInit->Uart5ClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) /*------------------------------ I2S Configuration ------------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S) { /* Check the parameters */ assert_param(IS_RCC_I2SCLKSOURCE(PeriphClkInit->I2sClockSelection)); /* Configure the I2S clock source */ __HAL_RCC_I2S_CONFIG(PeriphClkInit->I2sClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) /*------------------------------ ADC1 clock Configuration ------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC1) == RCC_PERIPHCLK_ADC1) { /* Check the parameters */ assert_param(IS_RCC_ADC1PLLCLK_DIV(PeriphClkInit->Adc1ClockSelection)); /* Configure the ADC1 clock source */ __HAL_RCC_ADC1_CONFIG(PeriphClkInit->Adc1ClockSelection); } #endif /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) /*------------------------------ ADC1 & ADC2 clock Configuration -------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC12) == RCC_PERIPHCLK_ADC12) { /* Check the parameters */ assert_param(IS_RCC_ADC12PLLCLK_DIV(PeriphClkInit->Adc12ClockSelection)); /* Configure the ADC12 clock source */ __HAL_RCC_ADC12_CONFIG(PeriphClkInit->Adc12ClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx */ #if defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F303xC) || defined(STM32F358xx) /*------------------------------ ADC3 & ADC4 clock Configuration -------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC34) == RCC_PERIPHCLK_ADC34) { /* Check the parameters */ assert_param(IS_RCC_ADC34PLLCLK_DIV(PeriphClkInit->Adc34ClockSelection)); /* Configure the ADC34 clock source */ __HAL_RCC_ADC34_CONFIG(PeriphClkInit->Adc34ClockSelection); } #endif /* STM32F303xE || STM32F398xx || */ /* STM32F303xC || STM32F358xx */ #if defined(STM32F373xC) || defined(STM32F378xx) /*------------------------------ ADC1 clock Configuration ------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC1) == RCC_PERIPHCLK_ADC1) { /* Check the parameters */ assert_param(IS_RCC_ADC1PCLK2_DIV(PeriphClkInit->Adc1ClockSelection)); /* Configure the ADC1 clock source */ __HAL_RCC_ADC1_CONFIG(PeriphClkInit->Adc1ClockSelection); } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) /*------------------------------ TIM1 clock Configuration ----------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM1) == RCC_PERIPHCLK_TIM1) { /* Check the parameters */ assert_param(IS_RCC_TIM1CLKSOURCE(PeriphClkInit->Tim1ClockSelection)); /* Configure the TIM1 clock source */ __HAL_RCC_TIM1_CONFIG(PeriphClkInit->Tim1ClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F303xC) || defined(STM32F358xx) /*------------------------------ TIM8 clock Configuration ----------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM8) == RCC_PERIPHCLK_TIM8) { /* Check the parameters */ assert_param(IS_RCC_TIM8CLKSOURCE(PeriphClkInit->Tim8ClockSelection)); /* Configure the TIM8 clock source */ __HAL_RCC_TIM8_CONFIG(PeriphClkInit->Tim8ClockSelection); } #endif /* STM32F303xE || STM32F398xx || */ /* STM32F303xC || STM32F358xx */ #if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) /*------------------------------ TIM15 clock Configuration ----------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM15) == RCC_PERIPHCLK_TIM15) { /* Check the parameters */ assert_param(IS_RCC_TIM15CLKSOURCE(PeriphClkInit->Tim15ClockSelection)); /* Configure the TIM15 clock source */ __HAL_RCC_TIM15_CONFIG(PeriphClkInit->Tim15ClockSelection); } /*------------------------------ TIM16 clock Configuration ----------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM16) == RCC_PERIPHCLK_TIM16) { /* Check the parameters */ assert_param(IS_RCC_TIM16CLKSOURCE(PeriphClkInit->Tim16ClockSelection)); /* Configure the TIM16 clock source */ __HAL_RCC_TIM16_CONFIG(PeriphClkInit->Tim16ClockSelection); } /*------------------------------ TIM17 clock Configuration ----------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM17) == RCC_PERIPHCLK_TIM17) { /* Check the parameters */ assert_param(IS_RCC_TIM17CLKSOURCE(PeriphClkInit->Tim17ClockSelection)); /* Configure the TIM17 clock source */ __HAL_RCC_TIM17_CONFIG(PeriphClkInit->Tim17ClockSelection); } #endif /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F334x8) /*------------------------------ HRTIM1 clock Configuration ----------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_HRTIM1) == RCC_PERIPHCLK_HRTIM1) { /* Check the parameters */ assert_param(IS_RCC_HRTIM1CLKSOURCE(PeriphClkInit->Hrtim1ClockSelection)); /* Configure the HRTIM1 clock source */ __HAL_RCC_HRTIM1_CONFIG(PeriphClkInit->Hrtim1ClockSelection); } #endif /* STM32F334x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) /*------------------------------ SDADC clock Configuration -------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDADC) == RCC_PERIPHCLK_SDADC) { /* Check the parameters */ assert_param(IS_RCC_SDADCSYSCLK_DIV(PeriphClkInit->SdadcClockSelection)); /* Configure the SDADC clock prescaler */ __HAL_RCC_SDADC_CONFIG(PeriphClkInit->SdadcClockSelection); } /*------------------------------ CEC clock Configuration -------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CEC) == RCC_PERIPHCLK_CEC) { /* Check the parameters */ assert_param(IS_RCC_CECCLKSOURCE(PeriphClkInit->CecClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_CEC_CONFIG(PeriphClkInit->CecClockSelection); } #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) /*------------------------------ TIM2 clock Configuration -------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM2) == RCC_PERIPHCLK_TIM2) { /* Check the parameters */ assert_param(IS_RCC_TIM2CLKSOURCE(PeriphClkInit->Tim2ClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_TIM2_CONFIG(PeriphClkInit->Tim2ClockSelection); } /*------------------------------ TIM3 clock Configuration -------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM34) == RCC_PERIPHCLK_TIM34) { /* Check the parameters */ assert_param(IS_RCC_TIM3CLKSOURCE(PeriphClkInit->Tim34ClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_TIM34_CONFIG(PeriphClkInit->Tim34ClockSelection); } /*------------------------------ TIM15 clock Configuration ------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM15) == RCC_PERIPHCLK_TIM15) { /* Check the parameters */ assert_param(IS_RCC_TIM15CLKSOURCE(PeriphClkInit->Tim15ClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_TIM15_CONFIG(PeriphClkInit->Tim15ClockSelection); } /*------------------------------ TIM16 clock Configuration ------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM16) == RCC_PERIPHCLK_TIM16) { /* Check the parameters */ assert_param(IS_RCC_TIM16CLKSOURCE(PeriphClkInit->Tim16ClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_TIM16_CONFIG(PeriphClkInit->Tim16ClockSelection); } /*------------------------------ TIM17 clock Configuration ------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM17) == RCC_PERIPHCLK_TIM17) { /* Check the parameters */ assert_param(IS_RCC_TIM17CLKSOURCE(PeriphClkInit->Tim17ClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_TIM17_CONFIG(PeriphClkInit->Tim17ClockSelection); } #endif /* STM32F302xE || STM32F303xE || STM32F398xx */ #if defined(STM32F303xE) || defined(STM32F398xx) /*------------------------------ TIM20 clock Configuration ------------------*/ if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM20) == RCC_PERIPHCLK_TIM20) { /* Check the parameters */ assert_param(IS_RCC_TIM20CLKSOURCE(PeriphClkInit->Tim20ClockSelection)); /* Configure the CEC clock source */ __HAL_RCC_TIM20_CONFIG(PeriphClkInit->Tim20ClockSelection); } #endif /* STM32F303xE || STM32F398xx */ return HAL_OK; } /** * @brief Get the RCC_ClkInitStruct according to the internal * RCC configuration registers. * @param PeriphClkInit: pointer to an RCC_PeriphCLKInitTypeDef structure that * returns the configuration information for the Extended Peripherals clocks * (ADC, CEC, I2C, I2S, SDADC, HRTIM, TIM, USART, RTC and USB clocks). * @retval None */ void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) { /* Set all possible values for the extended clock type parameter------------*/ /* Common part first */ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | \ RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_RTC; /* Get the RTC configuration --------------------------------------------*/ PeriphClkInit->RTCClockSelection = __HAL_RCC_GET_RTC_SOURCE(); /* Get the USART1 clock configuration --------------------------------------------*/ PeriphClkInit->Usart1ClockSelection = __HAL_RCC_GET_USART1_SOURCE(); /* Get the USART2 clock configuration -----------------------------------------*/ PeriphClkInit->Usart2ClockSelection = __HAL_RCC_GET_USART2_SOURCE(); /* Get the USART3 clock configuration -----------------------------------------*/ PeriphClkInit->Usart3ClockSelection = __HAL_RCC_GET_USART3_SOURCE(); /* Get the I2C1 clock configuration -----------------------------------------*/ PeriphClkInit->I2c1ClockSelection = __HAL_RCC_GET_I2C1_SOURCE(); #if defined(STM32F302xE) || defined(STM32F303xE) || \ defined(STM32F302xC) || defined(STM32F303xC) || \ defined(STM32F302x8) || \ defined(STM32F373xC) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USB; /* Get the USB clock configuration -----------------------------------------*/ PeriphClkInit->USBClockSelection = __HAL_RCC_GET_USB_SOURCE(); #endif /* STM32F302xE || STM32F303xE || */ /* STM32F302xC || STM32F303xC || */ /* STM32F302x8 || */ /* STM32F373xC */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2C2; /* Get the I2C2 clock configuration -----------------------------------------*/ PeriphClkInit->I2c2ClockSelection = __HAL_RCC_GET_I2C2_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx || */ /* STM32F373xC || STM32F378xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2C3; /* Get the I2C3 clock configuration -----------------------------------------*/ PeriphClkInit->I2c3ClockSelection = __HAL_RCC_GET_I2C3_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) ||defined(STM32F358xx) PeriphClkInit->PeriphClockSelection |= (RCC_PERIPHCLK_UART4 | RCC_PERIPHCLK_UART5); /* Get the UART4 clock configuration -----------------------------------------*/ PeriphClkInit->Uart4ClockSelection = __HAL_RCC_GET_UART4_SOURCE(); /* Get the UART5 clock configuration -----------------------------------------*/ PeriphClkInit->Uart5ClockSelection = __HAL_RCC_GET_UART5_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S; /* Get the I2S clock configuration -----------------------------------------*/ PeriphClkInit->I2sClockSelection = __HAL_RCC_GET_I2S_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx || */ #if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC1; /* Get the ADC1 clock configuration -----------------------------------------*/ PeriphClkInit->Adc1ClockSelection = __HAL_RCC_GET_ADC1_SOURCE(); #endif /* STM32F301x8 || STM32F302x8 || STM32F318xx || */ /* STM32F373xC || STM32F378xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC12; /* Get the ADC1 & ADC2 clock configuration -----------------------------------------*/ PeriphClkInit->Adc12ClockSelection = __HAL_RCC_GET_ADC12_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx */ #if defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F303xC) || defined(STM32F358xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC34; /* Get the ADC3 & ADC4 clock configuration -----------------------------------------*/ PeriphClkInit->Adc34ClockSelection = __HAL_RCC_GET_ADC34_SOURCE(); #endif /* STM32F303xE || STM32F398xx || */ /* STM32F303xC || STM32F358xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM1; /* Get the TIM1 clock configuration -----------------------------------------*/ PeriphClkInit->Tim1ClockSelection = __HAL_RCC_GET_TIM1_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F303xE) || defined(STM32F398xx) || \ defined(STM32F303xC) || defined(STM32F358xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM8; /* Get the TIM8 clock configuration -----------------------------------------*/ PeriphClkInit->Tim8ClockSelection = __HAL_RCC_GET_TIM8_SOURCE(); #endif /* STM32F303xE || STM32F398xx || */ /* STM32F303xC || STM32F358xx */ #if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) PeriphClkInit->PeriphClockSelection |= (RCC_PERIPHCLK_TIM15 | RCC_PERIPHCLK_TIM16 | RCC_PERIPHCLK_TIM17); /* Get the TIM15 clock configuration -----------------------------------------*/ PeriphClkInit->Tim15ClockSelection = __HAL_RCC_GET_TIM15_SOURCE(); /* Get the TIM16 clock configuration -----------------------------------------*/ PeriphClkInit->Tim16ClockSelection = __HAL_RCC_GET_TIM16_SOURCE(); /* Get the TIM17 clock configuration -----------------------------------------*/ PeriphClkInit->Tim17ClockSelection = __HAL_RCC_GET_TIM17_SOURCE(); #endif /* STM32F301x8 || STM32F302x8 || STM32F318xx */ #if defined(STM32F334x8) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_HRTIM1; /* Get the HRTIM1 clock configuration -----------------------------------------*/ PeriphClkInit->Hrtim1ClockSelection = __HAL_RCC_GET_HRTIM1_SOURCE(); #endif /* STM32F334x8 */ #if defined(STM32F373xC) || defined(STM32F378xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_SDADC; /* Get the SDADC clock configuration -----------------------------------------*/ PeriphClkInit->SdadcClockSelection = __HAL_RCC_GET_SDADC_SOURCE(); PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_CEC; /* Get the CEC clock configuration -----------------------------------------*/ PeriphClkInit->CecClockSelection = __HAL_RCC_GET_CEC_SOURCE(); #endif /* STM32F373xC || STM32F378xx */ #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM2; /* Get the TIM2 clock configuration -----------------------------------------*/ PeriphClkInit->Tim2ClockSelection = __HAL_RCC_GET_TIM2_SOURCE(); PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM34; /* Get the TIM3 clock configuration -----------------------------------------*/ PeriphClkInit->Tim34ClockSelection = __HAL_RCC_GET_TIM34_SOURCE(); PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM15; /* Get the TIM15 clock configuration -----------------------------------------*/ PeriphClkInit->Tim15ClockSelection = __HAL_RCC_GET_TIM15_SOURCE(); PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM16; /* Get the TIM16 clock configuration -----------------------------------------*/ PeriphClkInit->Tim16ClockSelection = __HAL_RCC_GET_TIM16_SOURCE(); PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM17; /* Get the TIM17 clock configuration -----------------------------------------*/ PeriphClkInit->Tim17ClockSelection = __HAL_RCC_GET_TIM17_SOURCE(); #endif /* STM32F302xE || STM32F303xE || STM32F398xx */ #if defined (STM32F303xE) || defined(STM32F398xx) PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM20; /* Get the TIM20 clock configuration -----------------------------------------*/ PeriphClkInit->Tim20ClockSelection = __HAL_RCC_GET_TIM20_SOURCE(); #endif /* STM32F303xE || STM32F398xx */ } /** * @brief Initializes the RCC Oscillators according to the specified parameters in the * RCC_OscInitTypeDef. * @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that * contains the configuration information for the RCC Oscillators. * @note The PLL is not disabled when used as system clock. * @retval HAL status */ HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) { uint32_t tickstart = 0; /* Check the parameters */ assert_param(RCC_OscInitStruct != HAL_NULL); assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType)); /*------------------------------- HSE Configuration ------------------------*/ if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE) { /* Check the parameters */ assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState)); /* When the HSE is used as system clock or clock source for PLL in these cases HSE will not disabled */ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSE) || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE))) { if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState != RCC_HSE_ON)) { return HAL_ERROR; } } else { /* Reset HSEON and HSEBYP bits before configuring the HSE --------------*/ __HAL_RCC_HSE_CONFIG(RCC_HSE_OFF); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till HSE is bypassed or disabled */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) { if((HAL_GetTick()-tickstart) > HSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } /* Set the new HSE configuration ---------------------------------------*/ __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState); #if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) /* Configure the HSE predivision factor --------------------------------*/ __HAL_RCC_HSE_PREDIV_CONFIG(RCC_OscInitStruct->HSEPredivValue); #endif /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ /* STM32F373xC || STM32F378xx */ /* Check the HSE State */ if(RCC_OscInitStruct->HSEState == RCC_HSE_ON) { /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till HSE is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) { if((HAL_GetTick()-tickstart) > HSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } else { /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till HSE is bypassed or disabled */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) { if((HAL_GetTick()-tickstart) > HSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } } } /*----------------------------- HSI Configuration --------------------------*/ if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI) { /* Check the parameters */ assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState)); assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue)); /* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */ if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSI) || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSI))) { /* When the HSI is used as system clock it is not allowed to be disabled */ if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON)) { return HAL_ERROR; } /* Otherwise, just the calibration is allowed */ else { /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); } } else { /* Check the HSI State */ if(RCC_OscInitStruct->HSIState != RCC_HSI_OFF) { /* Enable the Internal High Speed oscillator (HSI). */ __HAL_RCC_HSI_ENABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till HSI is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) { if((HAL_GetTick()-tickstart) > HSI_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); } else { /* Disable the Internal High Speed oscillator (HSI). */ __HAL_RCC_HSI_DISABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till HSI is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) { if((HAL_GetTick()-tickstart) > HSI_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } } } /*------------------------------ LSI Configuration -------------------------*/ if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI) { /* Check the parameters */ assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState)); /* Check the LSI State */ if(RCC_OscInitStruct->LSIState != RCC_LSI_OFF) { /* Enable the Internal Low Speed oscillator (LSI). */ __HAL_RCC_LSI_ENABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till LSI is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET) { if((HAL_GetTick()-tickstart) > LSI_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } else { /* Disable the Internal Low Speed oscillator (LSI). */ __HAL_RCC_LSI_DISABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till LSI is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET) { if((HAL_GetTick()-tickstart) > LSI_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } } /*------------------------------ LSE Configuration -------------------------*/ if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE) { /* Check the parameters */ assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState)); /* Enable Power Clock*/ __PWR_CLK_ENABLE(); /* Enable write access to Backup domain */ SET_BIT(PWR->CR, PWR_CR_DBP); /* Wait for Backup domain Write protection disable */ tickstart = HAL_GetTick(); while((PWR->CR & PWR_CR_DBP) == RESET) { if((HAL_GetTick()-tickstart) > DBP_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } /* Reset LSEON and LSEBYP bits before configuring the LSE ----------------*/ __HAL_RCC_LSE_CONFIG(RCC_LSE_OFF); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till LSE is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) { if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } /* Set the new LSE configuration -----------------------------------------*/ __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState); /* Check the LSE State */ if(RCC_OscInitStruct->LSEState == RCC_LSE_ON) { /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till LSE is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) { if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } else { /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till LSE is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) { if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } } /*-------------------------------- PLL Configuration -----------------------*/ /* Check the parameters */ assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState)); if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE) { /* Check if the PLL is used as system clock or not */ if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK) { if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON) { /* Check the parameters */ assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource)); assert_param(IS_RCC_PLL_MUL(RCC_OscInitStruct->PLL.PLLMUL)); #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) assert_param(IS_RCC_PREDIV(RCC_OscInitStruct->PLL.PREDIV)); #endif /* STM32F302xE || STM32F303xE || STM32F398xx */ /* Disable the main PLL. */ __HAL_RCC_PLL_DISABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till PLL is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) { if((HAL_GetTick()-tickstart) > PLL_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } #if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) /* Configure the main PLL clock source and multiplication factor. */ __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource, RCC_OscInitStruct->PLL.PLLMUL); #else /* Configure the main PLL clock source, predivider and multiplication factor. */ __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource, RCC_OscInitStruct->PLL.PREDIV, RCC_OscInitStruct->PLL.PLLMUL); #endif /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ /* STM32F373xC || STM32F378xx */ /* Enable the main PLL. */ __HAL_RCC_PLL_ENABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till PLL is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) { if((HAL_GetTick()-tickstart) > PLL_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } else { /* Disable the main PLL. */ __HAL_RCC_PLL_DISABLE(); /* Get timeout */ tickstart = HAL_GetTick(); /* Wait till PLL is ready */ while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) { if((HAL_GetTick()-tickstart) > PLL_TIMEOUT_VALUE) { return HAL_TIMEOUT; } } } } else { return HAL_ERROR; } } return HAL_OK; } /** * @brief Configures the RCC_OscInitStruct according to the internal * RCC configuration registers. * @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that * will be configured. * @retval None */ void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) { /* Check the parameters */ assert_param(RCC_OscInitStruct != HAL_NULL); /* Set all possible values for the Oscillator type parameter ---------------*/ RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI; /* Get the HSE configuration -----------------------------------------------*/ if((RCC->CR & RCC_CR_HSEBYP) == RCC_CR_HSEBYP) { RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS; } else if((RCC->CR & RCC_CR_HSEON) == RCC_CR_HSEON) { RCC_OscInitStruct->HSEState = RCC_HSE_ON; } else { RCC_OscInitStruct->HSEState = RCC_HSE_OFF; } #if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) RCC_OscInitStruct->HSEPredivValue = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV); #endif /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ /* STM32F373xC || STM32F378xx */ /* Get the HSI configuration -----------------------------------------------*/ if((RCC->CR & RCC_CR_HSION) == RCC_CR_HSION) { RCC_OscInitStruct->HSIState = RCC_HSI_ON; } else { RCC_OscInitStruct->HSIState = RCC_HSI_OFF; } RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR &RCC_CR_HSITRIM) >> POSITION_VAL(RCC_CR_HSITRIM)); /* Get the LSE configuration -----------------------------------------------*/ if((RCC->BDCR & RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP) { RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS; } else if((RCC->BDCR & RCC_BDCR_LSEON) == RCC_BDCR_LSEON) { RCC_OscInitStruct->LSEState = RCC_LSE_ON; } else { RCC_OscInitStruct->LSEState = RCC_LSE_OFF; } /* Get the LSI configuration -----------------------------------------------*/ if((RCC->CSR & RCC_CSR_LSION) == RCC_CSR_LSION) { RCC_OscInitStruct->LSIState = RCC_LSI_ON; } else { RCC_OscInitStruct->LSIState = RCC_LSI_OFF; } /* Get the PLL configuration -----------------------------------------------*/ if((RCC->CR & RCC_CR_PLLON) == RCC_CR_PLLON) { RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON; } else { RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF; } RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLSRC); RCC_OscInitStruct->PLL.PLLMUL = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLMUL); #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) RCC_OscInitStruct->PLL.PREDIV = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV); #endif /* STM32F302xE || STM32F303xE || STM32F398xx */ } /** * @brief Returns the SYSCLK frequency * @note The system frequency computed by this function is not the real * frequency in the chip. It is calculated based on the predefined * constant and the selected clock source: * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(*) * @note If SYSCLK source is HSE, function returns values based on HSE_VALUE * divided by PREDIV factor(**) * @note If SYSCLK source is PLL, function returns values based on HSE_VALUE * divided by PREDIV factor(**) or HSI_VALUE(*) multiplied by the PLL factor. * @note (*) HSI_VALUE is a constant defined in stm32f3xx.h file (default value * 8 MHz). * @note (**) HSE_VALUE is a constant defined in stm32f3xx.h file (default value * 8 MHz), user has to ensure that HSE_VALUE is same as the real * frequency of the crystal used. Otherwise, this function may * have wrong result. * * @note The result of this function could be not correct when using fractional * value for HSE crystal. * * @note This function can be used by the user application to compute the * baudrate for the communication peripherals or configure other parameters. * * @note Each time SYSCLK changes, this function must be called to update the * right SYSCLK value. Otherwise, any configuration based on this function will be incorrect. * * @retval SYSCLK frequency */ uint32_t HAL_RCC_GetSysClockFreq(void) { uint32_t tmpreg = 0, prediv = 0, pllmul = 0, pllclk = 0; uint32_t sysclockfreq = 0; tmpreg = RCC->CFGR; /* Get SYSCLK source -------------------------------------------------------*/ switch (tmpreg & RCC_CFGR_SWS) { case RCC_SYSCLKSOURCE_STATUS_HSE: /* HSE used as system clock source */ sysclockfreq = HSE_VALUE; break; case RCC_SYSCLKSOURCE_STATUS_PLLCLK: /* PLL used as system clock source */ pllmul = PLLMULFactorTable[(uint32_t)(tmpreg & RCC_CFGR_PLLMUL) >> POSITION_VAL(RCC_CFGR_PLLMUL)]; prediv = PredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV) >> POSITION_VAL(RCC_CFGR2_PREDIV)]; #if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \ defined(STM32F373xC) || defined(STM32F378xx) if ((tmpreg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI) { /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV * PLLMUL */ pllclk = (HSE_VALUE/prediv) * pllmul; } else { /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */ pllclk = (HSI_VALUE >> 1) * pllmul; } #else if ((tmpreg & RCC_CFGR_PLLSRC_HSE_PREDIV) == RCC_CFGR_PLLSRC_HSE_PREDIV) { /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV * PLLMUL */ pllclk = (HSE_VALUE/prediv) * pllmul; } else { /* HSI used as PLL clock source : PLLCLK = HSI/PREDIV * PLLMUL */ pllclk = (HSI_VALUE/prediv) * pllmul; } #endif /* STM32F302xC || STM32F303xC || STM32F358xx || */ /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ /* STM32F301x8 || STM32F302x8 || STM32F318xx */ /* STM32F373xC || STM32F378xx */ sysclockfreq = pllclk; break; case RCC_SYSCLKSOURCE_STATUS_HSI: /* HSI used as system clock source */ default: sysclockfreq = HSI_VALUE; break; } return sysclockfreq; } /** * @} */ /** * @} */ #endif /* HAL_RCC_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/