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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_rcc_ex.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_rcc_ex.c | 861 |
1 files changed, 861 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_rcc_ex.c b/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_rcc_ex.c new file mode 100644 index 0000000000..e04960d33e --- /dev/null +++ b/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_rcc_ex.c @@ -0,0 +1,861 @@ +/** + ****************************************************************************** + * @file stm32f7xx_hal_rcc_ex.c + * @author MCD Application Team + * @version V1.0.1 + * @date 25-June-2015 + * @brief Extension RCC HAL module driver. + * This file provides firmware functions to manage the following + * functionalities RCC extension peripheral: + * + Extended Peripheral Control functions + * + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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 "stm32f7xx_hal.h" + +/** @addtogroup STM32F7xx_HAL_Driver + * @{ + */ + +/** @defgroup RCCEx RCCEx + * @brief RCCEx HAL module driver + * @{ + */ + +#ifdef HAL_RCC_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @defgroup RCCEx_Private_Defines RCCEx Private Defines + * @{ + */ + +#define PLLI2S_TIMEOUT_VALUE 100 /* Timeout value fixed to 100 ms */ +#define PLLSAI_TIMEOUT_VALUE 100 /* Timeout value fixed to 100 ms */ + +/** + * @} + */ +/* Private macro -------------------------------------------------------------*/ +/** @defgroup RCCEx_Private_Macros RCCEx Private Macros + * @{ + */ +/** + * @} + */ + +/** @defgroup RCCEx_Private_Macros RCCEx Private Macros + * @{ + */ + +/** + * @} + */ + + +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ + +/** @defgroup RCCEx_Exported_Functions RCCEx 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 will be 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(I2S, SAI, LTDC RTC, TIM, UARTs, USARTs, LTPIM, SDMMC...). + * + * @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 tmpreg0 = 0; + uint32_t tmpreg1 = 0; + uint32_t plli2sused = 0; + uint32_t pllsaiused = 0; + + /* Check the parameters */ + assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection)); + + /*----------------------------------- I2S configuration ----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == (RCC_PERIPHCLK_I2S)) + { + /* Check the parameters */ + assert_param(IS_RCC_I2SCLKSOURCE(PeriphClkInit->I2sClockSelection)); + + /* Configure I2S Clock source */ + __HAL_RCC_I2S_CONFIG(PeriphClkInit->I2sClockSelection); + + /* Enable the PLLI2S when it's used as clock source for I2S */ + if(PeriphClkInit->I2sClockSelection == RCC_I2SCLKSOURCE_PLLI2S) + { + plli2sused = 1; + } + } + + /*------------------------------------ SAI1 configuration --------------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == (RCC_PERIPHCLK_SAI1)) + { + /* Check the parameters */ + assert_param(IS_RCC_SAI1CLKSOURCE(PeriphClkInit->Sai1ClockSelection)); + + /* Configure SAI1 Clock source */ + __HAL_RCC_SAI1_CONFIG(PeriphClkInit->Sai1ClockSelection); + /* Enable the PLLI2S when it's used as clock source for SAI */ + if(PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLI2S) + { + plli2sused = 1; + } + /* Enable the PLLSAI when it's used as clock source for SAI */ + if(PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLSAI) + { + pllsaiused = 1; + } + } + + /*------------------------------------ SAI2 configuration --------------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == (RCC_PERIPHCLK_SAI2)) + { + /* Check the parameters */ + assert_param(IS_RCC_SAI2CLKSOURCE(PeriphClkInit->Sai2ClockSelection)); + + /* Configure SAI2 Clock source */ + __HAL_RCC_SAI2_CONFIG(PeriphClkInit->Sai2ClockSelection); + + /* Enable the PLLI2S when it's used as clock source for SAI */ + if(PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLI2S) + { + plli2sused = 1; + } + /* Enable the PLLSAI when it's used as clock source for SAI */ + if(PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLSAI) + { + pllsaiused = 1; + } + } + + /*-------------------------------------- SPDIF-RX Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SPDIFRX) == RCC_PERIPHCLK_SPDIFRX) + { + plli2sused = 1; + } + + /*------------------------------------ RTC configuration --------------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == (RCC_PERIPHCLK_RTC)) + { + /* Reset the Backup domain only if the RTC Clock source selection is modified */ + if((RCC->BDCR & RCC_BDCR_RTCSEL) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)) + { + /* Enable Power Clock*/ + __HAL_RCC_PWR_CLK_ENABLE(); + + /* Enable write access to Backup domain */ + PWR->CR1 |= PWR_CR1_DBP; + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait for Backup domain Write protection disable */ + while((PWR->CR1 & PWR_CR1_DBP) == RESET) + { + if((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Store the content of BDCR register before the reset of Backup Domain */ + tmpreg0 = (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 = tmpreg0; + + /* If LSE is selected as RTC clock source, wait for LSE reactivation */ + if (HAL_IS_BIT_SET(tmpreg0, RCC_BDCR_LSERDY)) + { + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till LSE is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) + { + if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection); + } + } + + /*------------------------------------ TIM configuration --------------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM) == (RCC_PERIPHCLK_TIM)) + { + /* Check the parameters */ + assert_param(IS_RCC_TIMPRES(PeriphClkInit->TIMPresSelection)); + + /* Configure Timer Prescaler */ + __HAL_RCC_TIMCLKPRESCALER(PeriphClkInit->TIMPresSelection); + } + + /*-------------------------------------- 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); + } + + /*-------------------------------------- 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); + } + + /*-------------------------------------- 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); + } + + /*-------------------------------------- I2C4 Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C4) == RCC_PERIPHCLK_I2C4) + { + /* Check the parameters */ + assert_param(IS_RCC_I2C4CLKSOURCE(PeriphClkInit->I2c4ClockSelection)); + + /* Configure the I2C4 clock source */ + __HAL_RCC_I2C4_CONFIG(PeriphClkInit->I2c4ClockSelection); + } + + /*-------------------------------------- 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); + } + + /*-------------------------------------- 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); + } + + /*-------------------------------------- USART6 Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART6) == RCC_PERIPHCLK_USART6) + { + /* Check the parameters */ + assert_param(IS_RCC_USART6CLKSOURCE(PeriphClkInit->Usart6ClockSelection)); + + /* Configure the USART6 clock source */ + __HAL_RCC_USART6_CONFIG(PeriphClkInit->Usart6ClockSelection); + } + + /*-------------------------------------- UART7 Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_UART7) == RCC_PERIPHCLK_UART7) + { + /* Check the parameters */ + assert_param(IS_RCC_UART7CLKSOURCE(PeriphClkInit->Uart7ClockSelection)); + + /* Configure the UART7 clock source */ + __HAL_RCC_UART7_CONFIG(PeriphClkInit->Uart7ClockSelection); + } + + /*-------------------------------------- UART8 Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_UART8) == RCC_PERIPHCLK_UART8) + { + /* Check the parameters */ + assert_param(IS_RCC_UART8CLKSOURCE(PeriphClkInit->Uart8ClockSelection)); + + /* Configure the UART8 clock source */ + __HAL_RCC_UART8_CONFIG(PeriphClkInit->Uart8ClockSelection); + } + + /*--------------------------------------- CEC 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); + } + + /*-------------------------------------- CK48 Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48) + { + /* Check the parameters */ + assert_param(IS_RCC_CLK48SOURCE(PeriphClkInit->Clk48ClockSelection)); + + /* Configure the CLK48 source */ + __HAL_RCC_CLK48_CONFIG(PeriphClkInit->Clk48ClockSelection); + + /* Enable the PLLSAI when it's used as clock source for CK48 */ + if(PeriphClkInit->Clk48ClockSelection == RCC_CLK48SOURCE_PLLSAIP) + { + pllsaiused = 1; + } + } + + /*-------------------------------------- LTDC Configuration -----------------------------------*/ +#if defined(STM32F756xx) || defined(STM32F746xx) + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LTDC) == RCC_PERIPHCLK_LTDC) + { + pllsaiused = 1; + } +#endif /* STM32F756xx || STM32F746xx */ + /*-------------------------------------- LPTIM1 Configuration -----------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LPTIM1) == RCC_PERIPHCLK_LPTIM1) + { + /* Check the parameters */ + assert_param(IS_RCC_LPTIM1CLK(PeriphClkInit->Lptim1ClockSelection)); + + /* Configure the LTPIM1 clock source */ + __HAL_RCC_LPTIM1_CONFIG(PeriphClkInit->Lptim1ClockSelection); + } + + /*------------------------------------- SDMMC Configuration ------------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDMMC1) == RCC_PERIPHCLK_SDMMC1) + { + /* Check the parameters */ + assert_param(IS_RCC_SDMMC1CLKSOURCE(PeriphClkInit->Sdmmc1ClockSelection)); + + /* Configure the SDMMC1 clock source */ + __HAL_RCC_SDMMC1_CONFIG(PeriphClkInit->Sdmmc1ClockSelection); + } + + /*-------------------------------------- PLLI2S Configuration ---------------------------------*/ + /* PLLI2S is configured when a peripheral will use it as source clock : SAI1, SAI2, I2S or SPDIF-RX */ + if((plli2sused == 1) || (PeriphClkInit->PeriphClockSelection == RCC_PERIPHCLK_PLLI2S)) + { + /* Disable the PLLI2S */ + __HAL_RCC_PLLI2S_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLI2S is disabled */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE) + { + /* return in case of Timeout detected */ + return HAL_TIMEOUT; + } + } + + /* check for common PLLI2S Parameters */ + assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN)); + + /*----------------- In Case of PLLI2S is selected as source clock for I2S -------------------*/ + if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S) && (PeriphClkInit->I2sClockSelection == RCC_I2SCLKSOURCE_PLLI2S))) + { + /* check for Parameters */ + assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR)); + + /* Read PLLI2SP and PLLI2SQ value from PLLI2SCFGR register (this value is not needed for I2S configuration) */ + tmpreg0 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SP)); + tmpreg1 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SQ)); + /* Configure the PLLI2S division factors */ + /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) x (PLLI2SN/PLLM) */ + /* I2SCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SR */ + __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , tmpreg0, tmpreg1, PeriphClkInit->PLLI2S.PLLI2SR); + } + + /*----------------- In Case of PLLI2S is selected as source clock for SAI -------------------*/ + if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == RCC_PERIPHCLK_SAI1) && (PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLI2S)) || + ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == RCC_PERIPHCLK_SAI2) && (PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLI2S))) + { + /* Check for PLLI2S Parameters */ + assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ)); + /* Check for PLLI2S/DIVQ parameters */ + assert_param(IS_RCC_PLLI2S_DIVQ_VALUE(PeriphClkInit->PLLI2SDivQ)); + + /* Read PLLI2SP and PLLI2SR values from PLLI2SCFGR register (this value is not needed for SAI configuration) */ + tmpreg0 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SP)); + tmpreg1 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SR)); + /* Configure the PLLI2S division factors */ + /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ + /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ + /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */ + __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN, tmpreg0, PeriphClkInit->PLLI2S.PLLI2SQ, tmpreg1); + + /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */ + __HAL_RCC_PLLI2S_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLI2SDivQ); + } + + /*----------------- In Case of PLLI2S is selected as source clock for SPDIF-RX -------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SPDIFRX) == RCC_PERIPHCLK_SPDIFRX) + { + /* check for Parameters */ + assert_param(IS_RCC_PLLI2SP_VALUE(PeriphClkInit->PLLI2S.PLLI2SP)); + + /* Read PLLI2SR value from PLLI2SCFGR register (this value is not needed for SPDIF-RX configuration) */ + tmpreg0 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SQ)); + tmpreg1 = ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SR)); + /* Configure the PLLI2S division factors */ + /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) x (PLLI2SN/PLLM) */ + /* SPDIFCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SP */ + __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SP, tmpreg0, tmpreg1); + } + + /*----------------- In Case of PLLI2S is just selected -----------------*/ + if((PeriphClkInit->PeriphClockSelection & RCC_PERIPHCLK_PLLI2S) == RCC_PERIPHCLK_PLLI2S) + { + /* Check for Parameters */ + assert_param(IS_RCC_PLLI2SN_VALUE(PeriphClkInit->PLLI2S.PLLI2SN)); + assert_param(IS_RCC_PLLI2SP_VALUE(PeriphClkInit->PLLI2S.PLLI2SP)); + assert_param(IS_RCC_PLLI2SR_VALUE(PeriphClkInit->PLLI2S.PLLI2SR)); + assert_param(IS_RCC_PLLI2SQ_VALUE(PeriphClkInit->PLLI2S.PLLI2SQ)); + + /* Configure the PLLI2S division factors */ + /* PLLI2S_VCO = f(VCO clock) = f(PLLI2S clock input) x (PLLI2SN/PLLI2SM) */ + /* SPDIFRXCLK = f(PLLI2S clock output) = f(VCO clock) / PLLI2SP */ + __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SN , PeriphClkInit->PLLI2S.PLLI2SP, PeriphClkInit->PLLI2S.PLLI2SQ, PeriphClkInit->PLLI2S.PLLI2SR); + } + + /* Enable the PLLI2S */ + __HAL_RCC_PLLI2S_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLI2S is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) == RESET) + { + if((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE) + { + /* return in case of Timeout detected */ + return HAL_TIMEOUT; + } + } + } + + /*-------------------------------------- PLLSAI Configuration ---------------------------------*/ + /* PLLSAI is configured when a peripheral will use it as source clock : SAI1, SAI2, LTDC or CK48 */ + if(pllsaiused == 1) + { + /* Disable PLLSAI Clock */ + __HAL_RCC_PLLSAI_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI is disabled */ + while(__HAL_RCC_PLLSAI_GET_FLAG() != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI_TIMEOUT_VALUE) + { + /* return in case of Timeout detected */ + return HAL_TIMEOUT; + } + } + + /* Check the PLLSAI division factors */ + assert_param(IS_RCC_PLLSAIN_VALUE(PeriphClkInit->PLLSAI.PLLSAIN)); + + /*----------------- In Case of PLLSAI is selected as source clock for SAI -------------------*/ + if(((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == RCC_PERIPHCLK_SAI1) && (PeriphClkInit->Sai1ClockSelection == RCC_SAI1CLKSOURCE_PLLSAI)) || + ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == RCC_PERIPHCLK_SAI2) && (PeriphClkInit->Sai2ClockSelection == RCC_SAI2CLKSOURCE_PLLSAI))) + { + /* check for PLLSAIQ Parameter */ + assert_param(IS_RCC_PLLSAIQ_VALUE(PeriphClkInit->PLLSAI.PLLSAIQ)); + /* check for PLLSAI/DIVQ Parameter */ + assert_param(IS_RCC_PLLSAI_DIVQ_VALUE(PeriphClkInit->PLLSAIDivQ)); + + /* Read PLLSAIP value from PLLSAICFGR register (this value is not needed for SAI configuration) */ + tmpreg0 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIP)); + tmpreg1 = ((RCC->PLLSAICFGR & RCC_PLLI2SCFGR_PLLI2SR) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIR)); + /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */ + /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */ + /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */ + __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN , tmpreg0, PeriphClkInit->PLLSAI.PLLSAIQ, tmpreg1); + + /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */ + __HAL_RCC_PLLSAI_PLLSAICLKDIVQ_CONFIG(PeriphClkInit->PLLSAIDivQ); + } + + /*----------------- In Case of PLLSAI is selected as source clock for CLK48 -------------------*/ + /* In Case of PLLI2S is selected as source clock for CK48 */ + if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CLK48) == RCC_PERIPHCLK_CLK48) && (PeriphClkInit->Clk48ClockSelection == RCC_CLK48SOURCE_PLLSAIP)) + { + /* check for Parameters */ + assert_param(IS_RCC_PLLSAIP_VALUE(PeriphClkInit->PLLSAI.PLLSAIP)); + /* Read PLLSAIQ and PLLSAIR value from PLLSAICFGR register (this value is not needed for CK48 configuration) */ + tmpreg0 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIQ)); + tmpreg1 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIR)); + + /* Configure the PLLSAI division factors */ + /* PLLSAI_VCO = f(VCO clock) = f(PLLSAI clock input) x (PLLI2SN/PLLM) */ + /* 48CLK = f(PLLSAI clock output) = f(VCO clock) / PLLSAIP */ + __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN , PeriphClkInit->PLLSAI.PLLSAIP, tmpreg0, tmpreg1); + } + +#if defined(STM32F756xx) || defined(STM32F746xx) + /*---------------------------- LTDC configuration -------------------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LTDC) == (RCC_PERIPHCLK_LTDC)) + { + assert_param(IS_RCC_PLLSAIR_VALUE(PeriphClkInit->PLLSAI.PLLSAIR)); + assert_param(IS_RCC_PLLSAI_DIVR_VALUE(PeriphClkInit->PLLSAIDivR)); + + /* Read PLLSAIP and PLLSAIQ value from PLLSAICFGR register (these value are not needed for LTDC configuration) */ + tmpreg0 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIQ)); + tmpreg1 = ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIP)); + + /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */ + /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */ + /* LTDC_CLK(first level) = PLLSAI_VCO Output/PLLSAIR */ + __HAL_RCC_PLLSAI_CONFIG(PeriphClkInit->PLLSAI.PLLSAIN , tmpreg1, tmpreg0, PeriphClkInit->PLLSAI.PLLSAIR); + + /* LTDC_CLK = LTDC_CLK(first level)/PLLSAIDIVR */ + __HAL_RCC_PLLSAI_PLLSAICLKDIVR_CONFIG(PeriphClkInit->PLLSAIDivR); + } +#endif /* STM32F756xx || STM32F746xx */ + + /* Enable PLLSAI Clock */ + __HAL_RCC_PLLSAI_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI is ready */ + while(__HAL_RCC_PLLSAI_GET_FLAG() == RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI_TIMEOUT_VALUE) + { + /* return in case of Timeout detected */ + return HAL_TIMEOUT; + } + } + } + return HAL_OK; +} + +/** + * @brief Get the RCC_PeriphCLKInitTypeDef according to the internal + * RCC configuration registers. + * @param PeriphClkInit: pointer to the configured RCC_PeriphCLKInitTypeDef structure + * @retval None + */ +void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) +{ + uint32_t tempreg = 0; + + /* Set all possible values for the extended clock type parameter------------*/ + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_I2S | RCC_PERIPHCLK_LPTIM1 |\ + RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_SAI2 |\ + RCC_PERIPHCLK_TIM | RCC_PERIPHCLK_RTC |\ + RCC_PERIPHCLK_CEC | RCC_PERIPHCLK_I2C4 |\ + RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 |\ + RCC_PERIPHCLK_I2C3 | RCC_PERIPHCLK_USART1 |\ + RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 |\ + RCC_PERIPHCLK_UART4 | RCC_PERIPHCLK_UART5 |\ + RCC_PERIPHCLK_USART6 | RCC_PERIPHCLK_UART7 |\ + RCC_PERIPHCLK_UART8 | RCC_PERIPHCLK_SDMMC1 |\ + RCC_PERIPHCLK_CLK48; + + /* Get the PLLI2S Clock configuration -----------------------------------------------*/ + PeriphClkInit->PLLI2S.PLLI2SN = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SN)); + PeriphClkInit->PLLI2S.PLLI2SP = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SP) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SP)); + PeriphClkInit->PLLI2S.PLLI2SQ = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SQ)); + PeriphClkInit->PLLI2S.PLLI2SR = (uint32_t)((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> POSITION_VAL(RCC_PLLI2SCFGR_PLLI2SR)); + + /* Get the PLLSAI Clock configuration -----------------------------------------------*/ + PeriphClkInit->PLLSAI.PLLSAIN = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIN)); + PeriphClkInit->PLLSAI.PLLSAIP = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIP) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIP)); + PeriphClkInit->PLLSAI.PLLSAIQ = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIQ)); + PeriphClkInit->PLLSAI.PLLSAIR = (uint32_t)((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIR) >> POSITION_VAL(RCC_PLLSAICFGR_PLLSAIR)); + + /* Get the PLLSAI/PLLI2S division factors -------------------------------------------*/ + PeriphClkInit->PLLI2SDivQ = (uint32_t)((RCC->DCKCFGR1 & RCC_DCKCFGR1_PLLI2SDIVQ) >> POSITION_VAL(RCC_DCKCFGR1_PLLI2SDIVQ)); + PeriphClkInit->PLLSAIDivQ = (uint32_t)((RCC->DCKCFGR1 & RCC_DCKCFGR1_PLLSAIDIVQ) >> POSITION_VAL(RCC_DCKCFGR1_PLLSAIDIVQ)); + PeriphClkInit->PLLSAIDivR = (uint32_t)((RCC->DCKCFGR1 & RCC_DCKCFGR1_PLLSAIDIVR) >> POSITION_VAL(RCC_DCKCFGR1_PLLSAIDIVR)); + + /* Get the SAI1 clock configuration ----------------------------------------------*/ + PeriphClkInit->Sai1ClockSelection = __HAL_RCC_GET_SAI1_SOURCE(); + + /* Get the SAI2 clock configuration ----------------------------------------------*/ + PeriphClkInit->Sai2ClockSelection = __HAL_RCC_GET_SAI2_SOURCE(); + + /* Get the I2S clock configuration ------------------------------------------*/ + PeriphClkInit->I2sClockSelection = __HAL_RCC_GET_I2SCLKSOURCE(); + + /* Get the I2C1 clock configuration ------------------------------------------*/ + PeriphClkInit->I2c1ClockSelection = __HAL_RCC_GET_I2C1_SOURCE(); + + /* Get the I2C2 clock configuration ------------------------------------------*/ + PeriphClkInit->I2c2ClockSelection = __HAL_RCC_GET_I2C2_SOURCE(); + + /* Get the I2C3 clock configuration ------------------------------------------*/ + PeriphClkInit->I2c3ClockSelection = __HAL_RCC_GET_I2C3_SOURCE(); + + /* Get the I2C4 clock configuration ------------------------------------------*/ + PeriphClkInit->I2c4ClockSelection = __HAL_RCC_GET_I2C4_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 UART4 clock configuration ------------------------------------------*/ + PeriphClkInit->Uart4ClockSelection = __HAL_RCC_GET_UART4_SOURCE(); + + /* Get the UART5 clock configuration ------------------------------------------*/ + PeriphClkInit->Uart5ClockSelection = __HAL_RCC_GET_UART5_SOURCE(); + + /* Get the USART6 clock configuration ------------------------------------------*/ + PeriphClkInit->Usart6ClockSelection = __HAL_RCC_GET_USART6_SOURCE(); + + /* Get the UART7 clock configuration ------------------------------------------*/ + PeriphClkInit->Uart7ClockSelection = __HAL_RCC_GET_UART7_SOURCE(); + + /* Get the UART8 clock configuration ------------------------------------------*/ + PeriphClkInit->Uart8ClockSelection = __HAL_RCC_GET_UART8_SOURCE(); + + /* Get the LPTIM1 clock configuration ------------------------------------------*/ + PeriphClkInit->Lptim1ClockSelection = __HAL_RCC_GET_LPTIM1_SOURCE(); + + /* Get the CEC clock configuration -----------------------------------------------*/ + PeriphClkInit->CecClockSelection = __HAL_RCC_GET_CEC_SOURCE(); + + /* Get the CK48 clock configuration -----------------------------------------------*/ + PeriphClkInit->Clk48ClockSelection = __HAL_RCC_GET_CLK48_SOURCE(); + + /* Get the SDMMC clock configuration -----------------------------------------------*/ + PeriphClkInit->Sdmmc1ClockSelection = __HAL_RCC_GET_SDMMC1_SOURCE(); + + /* Get the RTC Clock configuration -----------------------------------------------*/ + tempreg = (RCC->CFGR & RCC_CFGR_RTCPRE); + PeriphClkInit->RTCClockSelection = (uint32_t)((tempreg) | (RCC->BDCR & RCC_BDCR_RTCSEL)); + + /* Get the TIM Prescaler configuration --------------------------------------------*/ + if ((RCC->DCKCFGR1 & RCC_DCKCFGR1_TIMPRE) == RESET) + { + PeriphClkInit->TIMPresSelection = RCC_TIMPRES_DESACTIVATED; + } + else + { + PeriphClkInit->TIMPresSelection = RCC_TIMPRES_ACTIVATED; + } +} + +/** + * @brief Return the peripheral clock frequency for a given peripheral(SAI..) + * @note Return 0 if peripheral clock identifier not managed by this API + * @param PeriphClk: Peripheral clock identifier + * This parameter can be one of the following values: + * @arg RCC_PERIPHCLK_SAI1: SAI1 peripheral clock + * @arg RCC_PERIPHCLK_SAI2: SAI2 peripheral clock + * @retval Frequency in KHz + */ +uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk) +{ + uint32_t tmpreg = 0; + /* This variable used to store the SAI clock frequency (value in Hz) */ + uint32_t frequency = 0; + /* This variable used to store the VCO Input (value in Hz) */ + uint32_t vcoinput = 0; + /* This variable used to store the SAI clock source */ + uint32_t saiclocksource = 0; + if ((PeriphClk == RCC_PERIPHCLK_SAI1) || (PeriphClk == RCC_PERIPHCLK_SAI2)) + { + saiclocksource = RCC->DCKCFGR1; + saiclocksource &= (RCC_DCKCFGR1_SAI1SEL | RCC_DCKCFGR1_SAI2SEL); + switch (saiclocksource) + { + case 0: /* PLLSAI is the clock source for SAI*/ + { + /* Configure the PLLSAI division factor */ + /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */ + if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI) + { + /* In Case the PLL Source is HSI (Internal Clock) */ + vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)); + } + else + { + /* In Case the PLL Source is HSE (External Clock) */ + vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM))); + } + /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */ + /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */ + tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24; + frequency = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6))/(tmpreg); + + /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */ + tmpreg = (((RCC->DCKCFGR1 & RCC_DCKCFGR1_PLLSAIDIVQ) >> 8) + 1); + frequency = frequency/(tmpreg); + break; + } + case RCC_DCKCFGR1_SAI1SEL_0: /* PLLI2S is the clock source for SAI*/ + case RCC_DCKCFGR1_SAI2SEL_0: /* PLLI2S is the clock source for SAI*/ + { + /* Configure the PLLI2S division factor */ + /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ + if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI) + { + /* In Case the PLL Source is HSI (Internal Clock) */ + vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)); + } + else + { + /* In Case the PLL Source is HSE (External Clock) */ + vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM))); + } + + /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ + /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */ + tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24; + frequency = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6))/(tmpreg); + + /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */ + tmpreg = ((RCC->DCKCFGR1 & RCC_DCKCFGR1_PLLI2SDIVQ) + 1); + frequency = frequency/(tmpreg); + break; + } + case RCC_DCKCFGR1_SAI1SEL_1: /* External clock is the clock source for SAI*/ + case RCC_DCKCFGR1_SAI2SEL_1: /* External clock is the clock source for SAI*/ + { + frequency = EXTERNAL_CLOCK_VALUE; + break; + } + default : + { + break; + } + } + } + return frequency; +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_RCC_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |