Mercurial > pub > halpp
diff l476rg/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc_ex.c @ 0:32a3b1785697
a rough draft of Hardware Abstraction Layer for C++
STM32L476RG drivers
| author | cin |
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| date | Thu, 12 Jan 2017 02:45:43 +0300 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/l476rg/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc_ex.c Thu Jan 12 02:45:43 2017 +0300 @@ -0,0 +1,2772 @@ +/** + ****************************************************************************** + * @file stm32l4xx_hal_rcc_ex.c + * @author MCD Application Team + * @version V1.6.0 + * @date 28-October-2016 + * @brief Extended RCC HAL module driver. + * This file provides firmware functions to manage the following + * functionalities RCC extended peripheral: + * + Extended Peripheral Control functions + * + Extended Clock management functions + * + Extended Clock Recovery System Control functions + * + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2016 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 "stm32l4xx_hal.h" + +/** @addtogroup STM32L4xx_HAL_Driver + * @{ + */ + +/** @defgroup RCCEx RCCEx + * @brief RCC Extended HAL module driver + * @{ + */ + +#ifdef HAL_RCC_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private defines -----------------------------------------------------------*/ +/** @defgroup RCCEx_Private_Constants RCCEx Private Constants + * @{ + */ +#define PLLSAI1_TIMEOUT_VALUE ((uint32_t)2U) /* 2 ms (minimum Tick + 1) */ +#define PLLSAI2_TIMEOUT_VALUE ((uint32_t)2U) /* 2 ms (minimum Tick + 1) */ +#define PLL_TIMEOUT_VALUE ((uint32_t)2U) /* 2 ms (minimum Tick + 1) */ + +#define DIVIDER_P_UPDATE 0U +#define DIVIDER_Q_UPDATE 1U +#define DIVIDER_R_UPDATE 2U + +#define __LSCO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE() +#define LSCO_GPIO_PORT GPIOA +#define LSCO_PIN GPIO_PIN_2 +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @defgroup RCCEx_Private_Functions RCCEx Private Functions + * @{ + */ +static HAL_StatusTypeDef RCCEx_PLLSAI1_Config(RCC_PLLSAI1InitTypeDef *PllSai1, uint32_t Divider); + +#if defined(RCC_PLLSAI2_SUPPORT) + +static HAL_StatusTypeDef RCCEx_PLLSAI2_Config(RCC_PLLSAI2InitTypeDef *PllSai2, uint32_t Divider); + +#endif /* RCC_PLLSAI2_SUPPORT */ + +/** + * @} + */ + +/* Exported 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) are set to their reset values. + +@endverbatim + * @{ + */ +/** + * @brief Initialize the RCC extended peripherals clocks according to the specified + * parameters in the RCC_PeriphCLKInitTypeDef. + * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that + * contains a field PeriphClockSelection which can be a combination of the following values: + * @arg @ref RCC_PERIPHCLK_RTC RTC peripheral clock + * @arg @ref RCC_PERIPHCLK_ADC ADC peripheral clock + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_DFSDM1 DFSDM1 peripheral clock (only for devices with DFSDM1) + @endif + @if STM32L462xx + * @arg @ref RCC_PERIPHCLK_DFSDM1 DFSDM1 peripheral clock (only for devices with DFSDM1) + @endif + * @arg @ref RCC_PERIPHCLK_I2C1 I2C1 peripheral clock + * @arg @ref RCC_PERIPHCLK_I2C2 I2C2 peripheral clock + * @arg @ref RCC_PERIPHCLK_I2C3 I2C3 peripheral clock + @if STM32L462xx + * @arg @ref RCC_PERIPHCLK_I2C4 I2C4 peripheral clock (only for devices with I2C4) + @endif + * @arg @ref RCC_PERIPHCLK_LPTIM1 LPTIM1 peripheral clock + * @arg @ref RCC_PERIPHCLK_LPTIM2 LPTIM2 peripheral clock + * @arg @ref RCC_PERIPHCLK_LPUART1 LPUART1 peripheral clock + * @arg @ref RCC_PERIPHCLK_RNG RNG peripheral clock + * @arg @ref RCC_PERIPHCLK_SAI1 SAI1 peripheral clock + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_SAI2 SAI2 peripheral clock (only for devices with SAI2) + @endif + * @arg @ref RCC_PERIPHCLK_SDMMC1 SDMMC1 peripheral clock + @if STM32L443xx + * @arg @ref RCC_PERIPHCLK_SWPMI1 SWPMI1 peripheral clock (only for devices with SWPMI1) + @endif + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_SWPMI1 SWPMI1 peripheral clock (only for devices with SWPMI1) + @endif + * @arg @ref RCC_PERIPHCLK_USART1 USART1 peripheral clock + * @arg @ref RCC_PERIPHCLK_USART2 USART1 peripheral clock + * @arg @ref RCC_PERIPHCLK_USART3 USART1 peripheral clock + @if STM32L462xx + * @arg @ref RCC_PERIPHCLK_UART4 USART1 peripheral clock (only for devices with UART4) + @endif + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_UART4 USART1 peripheral clock (only for devices with UART4) + * @arg @ref RCC_PERIPHCLK_UART5 USART1 peripheral clock (only for devices with UART5) + * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock (only for devices with USB) + @endif + * + * @note Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select + * the RTC clock source: in this case the access to Backup domain is enabled. + * + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) +{ + uint32_t tmpregister = 0; + uint32_t tickstart = 0U; + HAL_StatusTypeDef ret = HAL_OK; /* Intermediate status */ + HAL_StatusTypeDef status = HAL_OK; /* Final status */ + + /* Check the parameters */ + assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection)); + + /*-------------------------- SAI1 clock source configuration ---------------------*/ + if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI1) == RCC_PERIPHCLK_SAI1)) + { + /* Check the parameters */ + assert_param(IS_RCC_SAI1CLK(PeriphClkInit->Sai1ClockSelection)); + + switch(PeriphClkInit->Sai1ClockSelection) + { + case RCC_SAI1CLKSOURCE_PLL: /* PLL is used as clock source for SAI1*/ + /* Enable SAI Clock output generated form System PLL . */ +#if defined(RCC_PLLSAI2_SUPPORT) + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_SAI3CLK); +#else + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_SAI2CLK); +#endif /* RCC_PLLSAI2_SUPPORT */ + /* SAI1 clock source config set later after clock selection check */ + break; + + case RCC_SAI1CLKSOURCE_PLLSAI1: /* PLLSAI1 is used as clock source for SAI1*/ + /* PLLSAI1 input clock, parameters M, N & P configuration and clock output (PLLSAI1ClockOut) */ + ret = RCCEx_PLLSAI1_Config(&(PeriphClkInit->PLLSAI1), DIVIDER_P_UPDATE); + /* SAI1 clock source config set later after clock selection check */ + break; + +#if defined(RCC_PLLSAI2_SUPPORT) + + case RCC_SAI1CLKSOURCE_PLLSAI2: /* PLLSAI2 is used as clock source for SAI1*/ + /* PLLSAI2 input clock, parameters M, N & P configuration clock output (PLLSAI2ClockOut) */ + ret = RCCEx_PLLSAI2_Config(&(PeriphClkInit->PLLSAI2), DIVIDER_P_UPDATE); + /* SAI1 clock source config set later after clock selection check */ + break; + +#endif /* RCC_PLLSAI2_SUPPORT */ + + case RCC_SAI1CLKSOURCE_PIN: /* External clock is used as source of SAI1 clock*/ + /* SAI1 clock source config set later after clock selection check */ + break; + + default: + ret = HAL_ERROR; + break; + } + + if(ret == HAL_OK) + { + /* Set the source of SAI1 clock*/ + __HAL_RCC_SAI1_CONFIG(PeriphClkInit->Sai1ClockSelection); + } + else + { + /* set overall return value */ + status = ret; + } + } + +#if defined(SAI2) + + /*-------------------------- SAI2 clock source configuration ---------------------*/ + if((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SAI2) == RCC_PERIPHCLK_SAI2)) + { + /* Check the parameters */ + assert_param(IS_RCC_SAI2CLK(PeriphClkInit->Sai2ClockSelection)); + + switch(PeriphClkInit->Sai2ClockSelection) + { + case RCC_SAI2CLKSOURCE_PLL: /* PLL is used as clock source for SAI2*/ + /* Enable SAI Clock output generated form System PLL . */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_SAI3CLK); + /* SAI2 clock source config set later after clock selection check */ + break; + + case RCC_SAI2CLKSOURCE_PLLSAI1: /* PLLSAI1 is used as clock source for SAI2*/ + /* PLLSAI1 input clock, parameters M, N & P configuration and clock output (PLLSAI1ClockOut) */ + ret = RCCEx_PLLSAI1_Config(&(PeriphClkInit->PLLSAI1), DIVIDER_P_UPDATE); + /* SAI2 clock source config set later after clock selection check */ + break; + + case RCC_SAI2CLKSOURCE_PLLSAI2: /* PLLSAI2 is used as clock source for SAI2*/ + /* PLLSAI2 input clock, parameters M, N & P configuration and clock output (PLLSAI2ClockOut) */ + ret = RCCEx_PLLSAI2_Config(&(PeriphClkInit->PLLSAI2), DIVIDER_P_UPDATE); + /* SAI2 clock source config set later after clock selection check */ + break; + + case RCC_SAI2CLKSOURCE_PIN: /* External clock is used as source of SAI2 clock*/ + /* SAI2 clock source config set later after clock selection check */ + break; + + default: + ret = HAL_ERROR; + break; + } + + if(ret == HAL_OK) + { + /* Set the source of SAI2 clock*/ + __HAL_RCC_SAI2_CONFIG(PeriphClkInit->Sai2ClockSelection); + } + else + { + /* set overall return value */ + status = ret; + } + } +#endif /* SAI2 */ + + /*-------------------------- RTC clock source configuration ----------------------*/ + if((PeriphClkInit->PeriphClockSelection & RCC_PERIPHCLK_RTC) == RCC_PERIPHCLK_RTC) + { + FlagStatus pwrclkchanged = RESET; + + /* Check for RTC Parameters used to output RTCCLK */ + assert_param(IS_RCC_RTCCLKSOURCE(PeriphClkInit->RTCClockSelection)); + + /* Enable Power Clock */ + if(__HAL_RCC_PWR_IS_CLK_DISABLED()) + { + __HAL_RCC_PWR_CLK_ENABLE(); + pwrclkchanged = SET; + } + + /* Enable write access to Backup domain */ + SET_BIT(PWR->CR1, PWR_CR1_DBP); + + /* Wait for Backup domain Write protection disable */ + tickstart = HAL_GetTick(); + + while((PWR->CR1 & PWR_CR1_DBP) == RESET) + { + if((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE) + { + ret = HAL_TIMEOUT; + break; + } + } + + if(ret == HAL_OK) + { + /* Reset the Backup domain only if the RTC Clock source selection is modified from default */ + tmpregister = READ_BIT(RCC->BDCR, RCC_BDCR_RTCSEL); + + if((tmpregister != RCC_RTCCLKSOURCE_NO_CLK) && (tmpregister != PeriphClkInit->RTCClockSelection)) + { + /* Store the content of BDCR register before the reset of Backup Domain */ + tmpregister = READ_BIT(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 = tmpregister; + } + + /* Wait for LSE reactivation if LSE was enable prior to Backup Domain reset */ + if (HAL_IS_BIT_SET(tmpregister, RCC_BDCR_LSEON)) + { + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till LSE is ready */ + while(READ_BIT(RCC->BDCR, RCC_BDCR_LSERDY) == RESET) + { + if((HAL_GetTick() - tickstart) > RCC_LSE_TIMEOUT_VALUE) + { + ret = HAL_TIMEOUT; + break; + } + } + } + + if(ret == HAL_OK) + { + /* Apply new RTC clock source selection */ + __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection); + } + else + { + /* set overall return value */ + status = ret; + } + } + else + { + /* set overall return value */ + status = ret; + } + + /* Restore clock configuration if changed */ + if(pwrclkchanged == SET) + { + __HAL_RCC_PWR_CLK_DISABLE(); + } + } + + /*-------------------------- USART1 clock source 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 clock source 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); + } + +#if defined(USART3) + + /*-------------------------- USART3 clock source 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); + } + +#endif /* USART3 */ + +#if defined(UART4) + + /*-------------------------- UART4 clock source 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); + } + +#endif /* UART4 */ + +#if defined(UART5) + + /*-------------------------- UART5 clock source 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 /* UART5 */ + + /*-------------------------- LPUART1 clock source configuration ------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LPUART1) == RCC_PERIPHCLK_LPUART1) + { + /* Check the parameters */ + assert_param(IS_RCC_LPUART1CLKSOURCE(PeriphClkInit->Lpuart1ClockSelection)); + + /* Configure the LPUAR1 clock source */ + __HAL_RCC_LPUART1_CONFIG(PeriphClkInit->Lpuart1ClockSelection); + } + + /*-------------------------- LPTIM1 clock source configuration -------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LPTIM1) == (RCC_PERIPHCLK_LPTIM1)) + { + assert_param(IS_RCC_LPTIM1CLK(PeriphClkInit->Lptim1ClockSelection)); + __HAL_RCC_LPTIM1_CONFIG(PeriphClkInit->Lptim1ClockSelection); + } + + /*-------------------------- LPTIM2 clock source configuration -------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_LPTIM2) == (RCC_PERIPHCLK_LPTIM2)) + { + assert_param(IS_RCC_LPTIM2CLK(PeriphClkInit->Lptim2ClockSelection)); + __HAL_RCC_LPTIM2_CONFIG(PeriphClkInit->Lptim2ClockSelection); + } + + /*-------------------------- I2C1 clock source 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(I2C2) + + /*-------------------------- I2C2 clock source 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 /* I2C2 */ + + /*-------------------------- I2C3 clock source 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); + } + +#if defined(I2C4) + + /*-------------------------- I2C4 clock source 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); + } + +#endif /* I2C4 */ + +#if defined(USB_OTG_FS) || defined(USB) + + /*-------------------------- USB clock source configuration ----------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == (RCC_PERIPHCLK_USB)) + { + assert_param(IS_RCC_USBCLKSOURCE(PeriphClkInit->UsbClockSelection)); + __HAL_RCC_USB_CONFIG(PeriphClkInit->UsbClockSelection); + + if(PeriphClkInit->UsbClockSelection == RCC_USBCLKSOURCE_PLL) + { + /* Enable PLL48M1CLK output */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_48M1CLK); + } + else + { + if(PeriphClkInit->UsbClockSelection == RCC_USBCLKSOURCE_PLLSAI1) + { + /* PLLSAI1 input clock, parameters M, N & Q configuration and clock output (PLLSAI1ClockOut) */ + ret = RCCEx_PLLSAI1_Config(&(PeriphClkInit->PLLSAI1), DIVIDER_Q_UPDATE); + + if(ret != HAL_OK) + { + /* set overall return value */ + status = ret; + } + } + } + } + +#endif /* USB_OTG_FS || USB */ + +#if defined(SDMMC1) + + /*-------------------------- SDMMC1 clock source configuration -------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDMMC1) == (RCC_PERIPHCLK_SDMMC1)) + { + assert_param(IS_RCC_SDMMC1CLKSOURCE(PeriphClkInit->Sdmmc1ClockSelection)); + __HAL_RCC_SDMMC1_CONFIG(PeriphClkInit->Sdmmc1ClockSelection); + + if(PeriphClkInit->Sdmmc1ClockSelection == RCC_SDMMC1CLKSOURCE_PLL) + { + /* Enable PLL48M1CLK output */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_48M1CLK); + } + else if(PeriphClkInit->Sdmmc1ClockSelection == RCC_SDMMC1CLKSOURCE_PLLSAI1) + { + /* PLLSAI1 input clock, parameters M, N & Q configuration and clock output (PLLSAI1ClockOut) */ + ret = RCCEx_PLLSAI1_Config(&(PeriphClkInit->PLLSAI1), DIVIDER_Q_UPDATE); + + if(ret != HAL_OK) + { + /* set overall return value */ + status = ret; + } + } + } + +#endif /* SDMMC1 */ + + /*-------------------------- RNG clock source configuration ----------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RNG) == (RCC_PERIPHCLK_RNG)) + { + assert_param(IS_RCC_RNGCLKSOURCE(PeriphClkInit->RngClockSelection)); + __HAL_RCC_RNG_CONFIG(PeriphClkInit->RngClockSelection); + + if(PeriphClkInit->RngClockSelection == RCC_RNGCLKSOURCE_PLL) + { + /* Enable PLL48M1CLK output */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_48M1CLK); + } + else if(PeriphClkInit->RngClockSelection == RCC_RNGCLKSOURCE_PLLSAI1) + { + /* PLLSAI1 input clock, parameters M, N & Q configuration and clock output (PLLSAI1ClockOut) */ + ret = RCCEx_PLLSAI1_Config(&(PeriphClkInit->PLLSAI1), DIVIDER_Q_UPDATE); + + if(ret != HAL_OK) + { + /* set overall return value */ + status = ret; + } + } + } + + /*-------------------------- ADC clock source configuration ----------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC) == RCC_PERIPHCLK_ADC) + { + /* Check the parameters */ + assert_param(IS_RCC_ADCCLKSOURCE(PeriphClkInit->AdcClockSelection)); + + /* Configure the ADC interface clock source */ + __HAL_RCC_ADC_CONFIG(PeriphClkInit->AdcClockSelection); + + if(PeriphClkInit->AdcClockSelection == RCC_ADCCLKSOURCE_PLLSAI1) + { + /* PLLSAI1 input clock, parameters M, N & R configuration and clock output (PLLSAI1ClockOut) */ + ret = RCCEx_PLLSAI1_Config(&(PeriphClkInit->PLLSAI1), DIVIDER_R_UPDATE); + + if(ret != HAL_OK) + { + /* set overall return value */ + status = ret; + } + } + +#if defined(STM32L471xx) || defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L485xx) || defined(STM32L486xx) + + else if(PeriphClkInit->AdcClockSelection == RCC_ADCCLKSOURCE_PLLSAI2) + { + /* PLLSAI2 input clock, parameters M, N & R configuration and clock output (PLLSAI2ClockOut) */ + ret = RCCEx_PLLSAI2_Config(&(PeriphClkInit->PLLSAI2), DIVIDER_R_UPDATE); + + if(ret != HAL_OK) + { + /* set overall return value */ + status = ret; + } + } + +#endif /* STM32L471xx || STM32L475xx || STM32L476xx || STM32L485xx || STM32L486xx */ + + } + +#if defined(SWPMI1) + + /*-------------------------- SWPMI1 clock source configuration -------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SWPMI1) == RCC_PERIPHCLK_SWPMI1) + { + /* Check the parameters */ + assert_param(IS_RCC_SWPMI1CLKSOURCE(PeriphClkInit->Swpmi1ClockSelection)); + + /* Configure the SWPMI1 clock source */ + __HAL_RCC_SWPMI1_CONFIG(PeriphClkInit->Swpmi1ClockSelection); + } + +#endif /* SWPMI1 */ + +#if defined(DFSDM1_Filter0) + + /*-------------------------- DFSDM1 clock source configuration -------------------*/ + if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_DFSDM1) == RCC_PERIPHCLK_DFSDM1) + { + /* Check the parameters */ + assert_param(IS_RCC_DFSDM1CLKSOURCE(PeriphClkInit->Dfsdm1ClockSelection)); + + /* Configure the DFSDM1 interface clock source */ + __HAL_RCC_DFSDM1_CONFIG(PeriphClkInit->Dfsdm1ClockSelection); + } + +#endif /* DFSDM1_Filter0 */ + + return status; +} + +/** + * @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(SAI1, SAI2, LPTIM1, LPTIM2, I2C1, I2C2, I2C3, I2C4, LPUART, + * USART1, USART2, USART3, UART4, UART5, RTC, ADCx, DFSDMx, SWPMI1, USB, SDMMC1 and RNG). + * @retval None + */ +void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) +{ + /* Set all possible values for the extended clock type parameter------------*/ + +#if defined(STM32L431xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 | RCC_PERIPHCLK_I2C3 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | \ + RCC_PERIPHCLK_SDMMC1 | RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_SWPMI1 | \ + RCC_PERIPHCLK_RTC ; + +#elif defined(STM32L432xx) || defined(STM32L442xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C3 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_USB | \ + RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_SWPMI1 | \ + RCC_PERIPHCLK_RTC ; + +#elif defined(STM32L433xx) || defined(STM32L443xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 | RCC_PERIPHCLK_I2C3 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_USB | \ + RCC_PERIPHCLK_SDMMC1 | RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_SWPMI1 | \ + RCC_PERIPHCLK_RTC ; + +#elif defined(STM32L451xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | RCC_PERIPHCLK_UART4 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 | RCC_PERIPHCLK_I2C3 | RCC_PERIPHCLK_I2C4 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | \ + RCC_PERIPHCLK_SDMMC1 | RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_DFSDM1 | \ + RCC_PERIPHCLK_RTC ; + +#elif defined(STM32L452xx) || defined(STM32L462xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | RCC_PERIPHCLK_UART4 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 | RCC_PERIPHCLK_I2C3 | RCC_PERIPHCLK_I2C4 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_USB | \ + RCC_PERIPHCLK_SDMMC1 | RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_DFSDM1 | \ + RCC_PERIPHCLK_RTC ; + +#elif defined(STM32L471xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | RCC_PERIPHCLK_UART4 | RCC_PERIPHCLK_UART5 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 | RCC_PERIPHCLK_I2C3 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_SAI2 | \ + RCC_PERIPHCLK_SDMMC1 | RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_SWPMI1 | RCC_PERIPHCLK_DFSDM1 | \ + RCC_PERIPHCLK_RTC ; + +#elif defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L485xx) || defined(STM32L486xx) + + PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | RCC_PERIPHCLK_UART4 | RCC_PERIPHCLK_UART5 | \ + RCC_PERIPHCLK_LPUART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_I2C2 | RCC_PERIPHCLK_I2C3 | \ + RCC_PERIPHCLK_LPTIM1 | RCC_PERIPHCLK_LPTIM2 | RCC_PERIPHCLK_SAI1 | RCC_PERIPHCLK_SAI2 | RCC_PERIPHCLK_USB | \ + RCC_PERIPHCLK_SDMMC1 | RCC_PERIPHCLK_RNG | RCC_PERIPHCLK_ADC | RCC_PERIPHCLK_SWPMI1 | RCC_PERIPHCLK_DFSDM1 | \ + RCC_PERIPHCLK_RTC ; + +#endif /* STM32L431xx */ + + /* Get the PLLSAI1 Clock configuration -----------------------------------------------*/ + + PeriphClkInit->PLLSAI1.PLLSAI1Source = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> POSITION_VAL(RCC_PLLCFGR_PLLSRC)); + PeriphClkInit->PLLSAI1.PLLSAI1M = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> POSITION_VAL(RCC_PLLCFGR_PLLM)) + 1U; + PeriphClkInit->PLLSAI1.PLLSAI1N = (uint32_t)((RCC->PLLSAI1CFGR & RCC_PLLSAI1CFGR_PLLSAI1N) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N)); + PeriphClkInit->PLLSAI1.PLLSAI1P = (uint32_t)(((RCC->PLLSAI1CFGR & RCC_PLLSAI1CFGR_PLLSAI1P) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1P)) << 4U) + 7U; + PeriphClkInit->PLLSAI1.PLLSAI1Q = (uint32_t)(((RCC->PLLSAI1CFGR & RCC_PLLSAI1CFGR_PLLSAI1Q) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1Q))+1U) * 2U; + PeriphClkInit->PLLSAI1.PLLSAI1R = (uint32_t)(((RCC->PLLSAI1CFGR & RCC_PLLSAI1CFGR_PLLSAI1R) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1R))+1U) * 2U; + +#if defined(RCC_PLLSAI2_SUPPORT) + + /* Get the PLLSAI2 Clock configuration -----------------------------------------------*/ + + PeriphClkInit->PLLSAI2.PLLSAI2Source = PeriphClkInit->PLLSAI1.PLLSAI1Source; + PeriphClkInit->PLLSAI2.PLLSAI2M = PeriphClkInit->PLLSAI1.PLLSAI1M; + PeriphClkInit->PLLSAI2.PLLSAI2N = (uint32_t)((RCC->PLLSAI2CFGR & RCC_PLLSAI2CFGR_PLLSAI2N) >> POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2N)); + PeriphClkInit->PLLSAI2.PLLSAI2P = (uint32_t)(((RCC->PLLSAI2CFGR & RCC_PLLSAI2CFGR_PLLSAI2P) >> POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2P)) << 4U) + 7U; + PeriphClkInit->PLLSAI2.PLLSAI2R = (uint32_t)(((RCC->PLLSAI2CFGR & RCC_PLLSAI2CFGR_PLLSAI2R)>> POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2R))+1U) * 2U; + +#endif /* RCC_PLLSAI2_SUPPORT */ + + /* Get the USART1 clock source ---------------------------------------------*/ + PeriphClkInit->Usart1ClockSelection = __HAL_RCC_GET_USART1_SOURCE(); + /* Get the USART2 clock source ---------------------------------------------*/ + PeriphClkInit->Usart2ClockSelection = __HAL_RCC_GET_USART2_SOURCE(); + +#if defined(USART3) + /* Get the USART3 clock source ---------------------------------------------*/ + PeriphClkInit->Usart3ClockSelection = __HAL_RCC_GET_USART3_SOURCE(); +#endif /* USART3 */ + +#if defined(UART4) + /* Get the UART4 clock source ----------------------------------------------*/ + PeriphClkInit->Uart4ClockSelection = __HAL_RCC_GET_UART4_SOURCE(); +#endif /* UART4 */ + +#if defined(UART5) + /* Get the UART5 clock source ----------------------------------------------*/ + PeriphClkInit->Uart5ClockSelection = __HAL_RCC_GET_UART5_SOURCE(); +#endif /* UART5 */ + + /* Get the LPUART1 clock source --------------------------------------------*/ + PeriphClkInit->Lpuart1ClockSelection = __HAL_RCC_GET_LPUART1_SOURCE(); + + /* Get the I2C1 clock source -----------------------------------------------*/ + PeriphClkInit->I2c1ClockSelection = __HAL_RCC_GET_I2C1_SOURCE(); + +#if defined(I2C2) + /* Get the I2C2 clock source ----------------------------------------------*/ + PeriphClkInit->I2c2ClockSelection = __HAL_RCC_GET_I2C2_SOURCE(); +#endif /* I2C2 */ + + /* Get the I2C3 clock source -----------------------------------------------*/ + PeriphClkInit->I2c3ClockSelection = __HAL_RCC_GET_I2C3_SOURCE(); + +#if defined(I2C4) + /* Get the I2C4 clock source -----------------------------------------------*/ + PeriphClkInit->I2c4ClockSelection = __HAL_RCC_GET_I2C4_SOURCE(); +#endif /* I2C4 */ + + /* Get the LPTIM1 clock source ---------------------------------------------*/ + PeriphClkInit->Lptim1ClockSelection = __HAL_RCC_GET_LPTIM1_SOURCE(); + + /* Get the LPTIM2 clock source ---------------------------------------------*/ + PeriphClkInit->Lptim2ClockSelection = __HAL_RCC_GET_LPTIM2_SOURCE(); + + /* Get the SAI1 clock source -----------------------------------------------*/ + PeriphClkInit->Sai1ClockSelection = __HAL_RCC_GET_SAI1_SOURCE(); + +#if defined(SAI2) + /* Get the SAI2 clock source -----------------------------------------------*/ + PeriphClkInit->Sai2ClockSelection = __HAL_RCC_GET_SAI2_SOURCE(); +#endif /* SAI2 */ + + /* Get the RTC clock source ------------------------------------------------*/ + PeriphClkInit->RTCClockSelection = __HAL_RCC_GET_RTC_SOURCE(); + +#if defined(USB_OTG_FS) || defined(USB) + /* Get the USB clock source ------------------------------------------------*/ + PeriphClkInit->UsbClockSelection = __HAL_RCC_GET_USB_SOURCE(); +#endif /* USB_OTG_FS || USB */ + +#if defined(SDMMC1) + /* Get the SDMMC1 clock source ---------------------------------------------*/ + PeriphClkInit->Sdmmc1ClockSelection = __HAL_RCC_GET_SDMMC1_SOURCE(); +#endif /* SDMMC1 */ + + /* Get the RNG clock source ------------------------------------------------*/ + PeriphClkInit->RngClockSelection = __HAL_RCC_GET_RNG_SOURCE(); + + /* Get the ADC clock source ------------------------------------------------*/ + PeriphClkInit->AdcClockSelection = __HAL_RCC_GET_ADC_SOURCE(); + +#if defined(SWPMI1) + /* Get the SWPMI1 clock source ---------------------------------------------*/ + PeriphClkInit->Swpmi1ClockSelection = __HAL_RCC_GET_SWPMI1_SOURCE(); +#endif /* SWPMI1 */ + +#if defined(DFSDM1_Filter0) + /* Get the DFSDM1 clock source ---------------------------------------------*/ + PeriphClkInit->Dfsdm1ClockSelection = __HAL_RCC_GET_DFSDM1_SOURCE(); +#endif /* DFSDM1_Filter0 */ +} + +/** + * @brief Return the peripheral clock frequency for peripherals with clock source from PLLSAIs + * @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 @ref RCC_PERIPHCLK_RTC RTC peripheral clock + * @arg @ref RCC_PERIPHCLK_ADC ADC peripheral clock + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_DFSDM1 DFSDM1 peripheral clock (only for devices with DFSDM) + @endif + @if STM32L462xx + * @arg @ref RCC_PERIPHCLK_DFSDM1 DFSDM1 peripheral clock (only for devices with DFSDM) + @endif + * @arg @ref RCC_PERIPHCLK_I2C1 I2C1 peripheral clock + * @arg @ref RCC_PERIPHCLK_I2C2 I2C2 peripheral clock + * @arg @ref RCC_PERIPHCLK_I2C3 I2C3 peripheral clock + @if STM32L462xx + * @arg @ref RCC_PERIPHCLK_I2C4 I2C4 peripheral clock (only for devices with I2C4) + @endif + * @arg @ref RCC_PERIPHCLK_LPTIM1 LPTIM1 peripheral clock + * @arg @ref RCC_PERIPHCLK_LPTIM2 LPTIM2 peripheral clock + * @arg @ref RCC_PERIPHCLK_LPUART1 LPUART1 peripheral clock + * @arg @ref RCC_PERIPHCLK_RNG RNG peripheral clock + * @arg @ref RCC_PERIPHCLK_SAI1 SAI1 peripheral clock + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_SAI2 SAI2 peripheral clock (only for devices with SAI2) + @endif + * @arg @ref RCC_PERIPHCLK_SDMMC1 SDMMC1 peripheral clock + @if STM32L443xx + * @arg @ref RCC_PERIPHCLK_SWPMI1 SWPMI1 peripheral clock (only for devices with SWPMI1) + @endif + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_SWPMI1 SWPMI1 peripheral clock (only for devices with SWPMI1) + @endif + * @arg @ref RCC_PERIPHCLK_USART1 USART1 peripheral clock + * @arg @ref RCC_PERIPHCLK_USART2 USART1 peripheral clock + * @arg @ref RCC_PERIPHCLK_USART3 USART1 peripheral clock + @if STM32L486xx + * @arg @ref RCC_PERIPHCLK_UART4 UART4 peripheral clock (only for devices with UART4) + * @arg @ref RCC_PERIPHCLK_UART5 UART5 peripheral clock (only for devices with UART5) + * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock (only for devices with USB) + @endif + @if STM32L462xx + * @arg @ref RCC_PERIPHCLK_UART4 UART4 peripheral clock (only for devices with UART4) + * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock (only for devices with USB) + @endif + * @retval Frequency in Hz + */ +uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk) +{ + uint32_t frequency = 0U; + uint32_t srcclk = 0U; + uint32_t pllvco = 0U, plln = 0U, pllp = 0U; + + /* Check the parameters */ + assert_param(IS_RCC_PERIPHCLOCK(PeriphClk)); + + if(PeriphClk == RCC_PERIPHCLK_RTC) + { + /* Get the current RTC source */ + srcclk = __HAL_RCC_GET_RTC_SOURCE(); + + /* Check if LSE is ready and if RTC clock selection is LSE */ + if ((srcclk == RCC_RTCCLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Check if LSI is ready and if RTC clock selection is LSI */ + else if ((srcclk == RCC_RTCCLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY))) + { + frequency = LSI_VALUE; + } + /* Check if HSE is ready and if RTC clock selection is HSI_DIV32*/ + else if ((srcclk == RCC_RTCCLKSOURCE_HSE_DIV32) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSERDY))) + { + frequency = HSE_VALUE / 32; + } + /* Clock not enabled for RTC*/ + else + { + frequency = 0U; + } + } + else + { + /* Other external peripheral clock source than RTC */ + + /* Compute PLL clock input */ + if(__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_MSI) /* MSI ? */ + { + if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_MSIRDY)) + { + pllvco = (1U << ((__HAL_RCC_GET_MSI_RANGE() >> 4U) - 4U)) * 1000000U; + } + else + { + pllvco = 0U; + } + } + else if(__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSI) /* HSI ? */ + { + if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY)) + { + pllvco = HSI_VALUE; + } + else + { + pllvco = 0U; + } + } + else if(__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) /* HSE ? */ + { + if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSERDY)) + { + pllvco = HSE_VALUE; + } + else + { + pllvco = 0U; + } + } + else /* No source */ + { + pllvco = 0U; + } + + /* f(PLL Source) / PLLM */ + pllvco = (pllvco / ((READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLM) >> POSITION_VAL(RCC_PLLCFGR_PLLM)) + 1U)); + + switch(PeriphClk) + { +#if defined(SAI2) + + case RCC_PERIPHCLK_SAI1: + case RCC_PERIPHCLK_SAI2: + + if(PeriphClk == RCC_PERIPHCLK_SAI1) + { + srcclk = __HAL_RCC_GET_SAI1_SOURCE(); + + if(srcclk == RCC_SAI1CLKSOURCE_PIN) + { + frequency = EXTERNAL_SAI1_CLOCK_VALUE; + } + /* Else, PLL clock output to check below */ + } + else /* RCC_PERIPHCLK_SAI2 */ + { + srcclk = __HAL_RCC_GET_SAI2_SOURCE(); + + if(srcclk == RCC_SAI2CLKSOURCE_PIN) + { + frequency = EXTERNAL_SAI2_CLOCK_VALUE; + } + /* Else, PLL clock output to check below */ + } + +#else + + case RCC_PERIPHCLK_SAI1: + + if(PeriphClk == RCC_PERIPHCLK_SAI1) + { + srcclk = READ_BIT(RCC->CCIPR, RCC_CCIPR_SAI1SEL); + + if(srcclk == RCC_SAI1CLKSOURCE_PIN) + { + frequency = EXTERNAL_SAI1_CLOCK_VALUE; + } + /* Else, PLL clock output to check below */ + } + +#endif /* SAI2 */ + + if(frequency == 0U) + { +#if defined(SAI2) + if((srcclk == RCC_SAI1CLKSOURCE_PLL) || (srcclk == RCC_SAI2CLKSOURCE_PLL)) + { + if(__HAL_RCC_GET_PLLCLKOUT_CONFIG(RCC_PLL_SAI3CLK) != RESET) + { + /* f(PLLSAI3CLK) = f(VCO input) * PLLN / PLLP */ + plln = READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN); +#if defined(RCC_PLLP_DIV_2_31_SUPPORT) + pllp = READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLPDIV) >> POSITION_VAL(RCC_PLLCFGR_PLLPDIV); +#endif + if(pllp == 0U) + { + if(READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLP) != RESET) + { + pllp = 17U; + } + else + { + pllp = 7U; + } + } + frequency = (pllvco * plln) / pllp; + } + } + else if(srcclk == 0U) /* RCC_SAI1CLKSOURCE_PLLSAI1 || RCC_SAI2CLKSOURCE_PLLSAI1 */ + { + if(__HAL_RCC_GET_PLLSAI1CLKOUT_CONFIG(RCC_PLLSAI1_SAI1CLK) != RESET) + { + /* f(PLLSAI1CLK) = f(VCOSAI1 input) * PLLSAI1N / PLLSAI1P */ + plln = READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1N) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N); +#if defined(RCC_PLLSAI1P_DIV_2_31_SUPPORT) + pllp = READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1PDIV) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1PDIV); +#endif + if(pllp == 0U) + { + if(READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1P) != RESET) + { + pllp = 17U; + } + else + { + pllp = 7U; + } + } + frequency = (pllvco * plln) / pllp; + } + } +#else + if(srcclk == RCC_SAI1CLKSOURCE_PLL) + { + if(__HAL_RCC_GET_PLLCLKOUT_CONFIG(RCC_PLL_SAI2CLK) != RESET) + { + /* f(PLLSAI2CLK) = f(VCO input) * PLLN / PLLP */ + plln = READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN); +#if defined(RCC_PLLP_DIV_2_31_SUPPORT) + pllp = READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLPDIV) >> POSITION_VAL(RCC_PLLCFGR_PLLPDIV); +#endif + if(pllp == 0U) + { + if(READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLP) != RESET) + { + pllp = 17U; + } + else + { + pllp = 7U; + } + } + + frequency = (pllvco * plln) / pllp; + } + else if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY)) + { + /* HSI automatically selected as clock source if PLLs not enabled */ + frequency = HSI_VALUE; + } + else + { + /* No clock source */ + frequency = 0U; + } + } + else if(srcclk == RCC_SAI1CLKSOURCE_PLLSAI1) + { + if(__HAL_RCC_GET_PLLSAI1CLKOUT_CONFIG(RCC_PLLSAI1_SAI1CLK) != RESET) + { + /* f(PLLSAI1CLK) = f(VCOSAI1 input) * PLLSAI1N / PLLSAI1P */ + plln = READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1N) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N); +#if defined(RCC_PLLSAI1P_DIV_2_31_SUPPORT) + pllp = READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1PDIV) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1PDIV); +#endif + if(pllp == 0U) + { + if(READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1P) != RESET) + { + pllp = 17U; + } + else + { + pllp = 7U; + } + } + + frequency = (pllvco * plln) / pllp; + } + else if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY)) + { + /* HSI automatically selected as clock source if PLLs not enabled */ + frequency = HSI_VALUE; + } + else + { + /* No clock source */ + frequency = 0U; + } + } +#endif /* SAI2 */ + +#if defined(RCC_PLLSAI2_SUPPORT) + + else if((srcclk == RCC_SAI1CLKSOURCE_PLLSAI2) || (srcclk == RCC_SAI2CLKSOURCE_PLLSAI2)) + { + if(__HAL_RCC_GET_PLLSAI2CLKOUT_CONFIG(RCC_PLLSAI2_SAI2CLK) != RESET) + { + /* f(PLLSAI2CLK) = f(VCOSAI2 input) * PLLSAI2N / PLLSAI2P */ + plln = READ_BIT(RCC->PLLSAI2CFGR, RCC_PLLSAI2CFGR_PLLSAI2N) >> POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2N); + if(pllp == 0U) + { + if(READ_BIT(RCC->PLLSAI2CFGR, RCC_PLLSAI2CFGR_PLLSAI2P) != RESET) + { + pllp = 17U; + } + else + { + pllp = 7U; + } + } + frequency = (pllvco * plln) / pllp; + } + } + +#endif /* RCC_PLLSAI2_SUPPORT */ + + else + { + /* No clock source */ + frequency = 0U; + } + } + break; + +#if defined(USB_OTG_FS) || defined(USB) + + case RCC_PERIPHCLK_USB: + +#endif /* USB_OTG_FS || USB */ + + case RCC_PERIPHCLK_RNG: + +#if defined(SDMMC1) + + case RCC_PERIPHCLK_SDMMC1: + +#endif /* SDMMC1 */ + + srcclk = READ_BIT(RCC->CCIPR, RCC_CCIPR_CLK48SEL); + + if(srcclk == RCC_CCIPR_CLK48SEL) /* MSI ? */ + { + if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_MSIRDY)) + { + frequency = (1U << ((__HAL_RCC_GET_MSI_RANGE() >> 4U) - 4U)) * 1000000U; + } + else + { + frequency = 0U; + } + } + else if(srcclk == RCC_CCIPR_CLK48SEL_1) /* PLL ? */ + { + if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLLRDY) && HAL_IS_BIT_SET(RCC->PLLCFGR, RCC_PLLCFGR_PLLQEN)) + { + /* f(PLL48M1CLK) = f(VCO input) * PLLN / PLLQ */ + plln = READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN); + frequency = (pllvco * plln) / (((READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLQ) >> POSITION_VAL(RCC_PLLCFGR_PLLQ)) + 1U) << 1U); + } + else + { + frequency = 0U; + } + } + else if(srcclk == RCC_CCIPR_CLK48SEL_0) /* PLLSAI1 ? */ + { + if(HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLLSAI1RDY) && HAL_IS_BIT_SET(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1QEN)) + { + /* f(PLL48M2CLK) = f(VCOSAI1 input) * PLLSAI1N / PLLSAI1Q */ + plln = READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1N) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N); + frequency = (pllvco * plln) / (((READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1Q) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1Q)) + 1U) << 1U); + } + else + { + frequency = 0U; + } + } +#if defined(RCC_HSI48_SUPPORT) + else if((srcclk == 0U) && (HAL_IS_BIT_SET(RCC->CRRCR, RCC_CRRCR_HSI48RDY))) /* HSI48 ? */ + { + frequency = HSI48_VALUE; + } + else /* No clock source */ + { + frequency = 0U; + } +#else + else /* No clock source */ + { + frequency = 0U; + } +#endif /* RCC_HSI48_SUPPORT */ + break; + + case RCC_PERIPHCLK_USART1: + /* Get the current USART1 source */ + srcclk = __HAL_RCC_GET_USART1_SOURCE(); + + if(srcclk == RCC_USART1CLKSOURCE_PCLK2) + { + frequency = HAL_RCC_GetPCLK2Freq(); + } + else if(srcclk == RCC_USART1CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_USART1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if((srcclk == RCC_USART1CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for USART1 */ + else + { + frequency = 0U; + } + break; + + case RCC_PERIPHCLK_USART2: + /* Get the current USART2 source */ + srcclk = __HAL_RCC_GET_USART2_SOURCE(); + + if(srcclk == RCC_USART2CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_USART2CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_USART2CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if((srcclk == RCC_USART2CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for USART2 */ + else + { + frequency = 0U; + } + break; + +#if defined(USART3) + + case RCC_PERIPHCLK_USART3: + /* Get the current USART3 source */ + srcclk = __HAL_RCC_GET_USART3_SOURCE(); + + if(srcclk == RCC_USART3CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_USART3CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_USART3CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if((srcclk == RCC_USART3CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for USART3 */ + else + { + frequency = 0U; + } + break; + +#endif /* USART3 */ + +#if defined(UART4) + + case RCC_PERIPHCLK_UART4: + /* Get the current UART4 source */ + srcclk = __HAL_RCC_GET_UART4_SOURCE(); + + if(srcclk == RCC_UART4CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_UART4CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_UART4CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if((srcclk == RCC_UART4CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for UART4 */ + else + { + frequency = 0U; + } + break; + +#endif /* UART4 */ + +#if defined(UART5) + + case RCC_PERIPHCLK_UART5: + /* Get the current UART5 source */ + srcclk = __HAL_RCC_GET_UART5_SOURCE(); + + if(srcclk == RCC_UART5CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_UART5CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_UART5CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if((srcclk == RCC_UART5CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for UART5 */ + else + { + frequency = 0U; + } + break; + +#endif /* UART5 */ + + case RCC_PERIPHCLK_LPUART1: + /* Get the current LPUART1 source */ + srcclk = __HAL_RCC_GET_LPUART1_SOURCE(); + + if(srcclk == RCC_LPUART1CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_LPUART1CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_LPUART1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if((srcclk == RCC_LPUART1CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for LPUART1 */ + else + { + frequency = 0U; + } + break; + + case RCC_PERIPHCLK_ADC: + + srcclk = __HAL_RCC_GET_ADC_SOURCE(); + + if(srcclk == RCC_ADCCLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if(srcclk == RCC_ADCCLKSOURCE_PLLSAI1) + { + if(__HAL_RCC_GET_PLLSAI1CLKOUT_CONFIG(RCC_PLLSAI1_ADC1CLK) != RESET) + { + /* f(PLLADC1CLK) = f(VCOSAI1 input) * PLLSAI1N / PLLSAI1R */ + plln = READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1N) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N); + frequency = (pllvco * plln) / (((READ_BIT(RCC->PLLSAI1CFGR, RCC_PLLSAI1CFGR_PLLSAI1R) >> POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1R)) + 1U) << 1U); + } + } +#if defined(STM32L471xx) || defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L485xx) || defined(STM32L486xx) + else if(srcclk == RCC_ADCCLKSOURCE_PLLSAI2) + { + if(__HAL_RCC_GET_PLLSAI2CLKOUT_CONFIG(RCC_PLLSAI2_ADC2CLK) != RESET) + { + /* f(PLLADC2CLK) = f(VCOSAI2 input) * PLLSAI2N / PLLSAI2R */ + plln = READ_BIT(RCC->PLLSAI2CFGR, RCC_PLLSAI2CFGR_PLLSAI2N) >> POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2N); + frequency = (pllvco * plln) / (((READ_BIT(RCC->PLLSAI2CFGR, RCC_PLLSAI2CFGR_PLLSAI2R) >> POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2R)) + 1U) << 1U); + } + } +#endif /* STM32L471xx || STM32L475xx || STM32L476xx || STM32L485xx || STM32L486xx */ + /* Clock not enabled for ADC */ + else + { + frequency = 0U; + } + break; + +#if defined(DFSDM1_Filter0) + + case RCC_PERIPHCLK_DFSDM1: + /* Get the current DFSDM1 source */ + srcclk = __HAL_RCC_GET_DFSDM1_SOURCE(); + + if(srcclk == RCC_DFSDM1CLKSOURCE_PCLK) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else + { + frequency = HAL_RCC_GetSysClockFreq(); + } + break; + +#endif /* DFSDM1_Filter0 */ + + case RCC_PERIPHCLK_I2C1: + /* Get the current I2C1 source */ + srcclk = __HAL_RCC_GET_I2C1_SOURCE(); + + if(srcclk == RCC_I2C1CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_I2C1CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_I2C1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + /* Clock not enabled for I2C1 */ + else + { + frequency = 0U; + } + break; + +#if defined(I2C2) + + case RCC_PERIPHCLK_I2C2: + /* Get the current I2C2 source */ + srcclk = __HAL_RCC_GET_I2C2_SOURCE(); + + if(srcclk == RCC_I2C2CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_I2C2CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_I2C2CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + /* Clock not enabled for I2C2 */ + else + { + frequency = 0U; + } + break; + +#endif /* I2C2 */ + + case RCC_PERIPHCLK_I2C3: + /* Get the current I2C3 source */ + srcclk = __HAL_RCC_GET_I2C3_SOURCE(); + + if(srcclk == RCC_I2C3CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_I2C3CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_I2C3CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + /* Clock not enabled for I2C3 */ + else + { + frequency = 0U; + } + break; + +#if defined(I2C4) + + case RCC_PERIPHCLK_I2C4: + /* Get the current I2C4 source */ + srcclk = __HAL_RCC_GET_I2C4_SOURCE(); + + if(srcclk == RCC_I2C4CLKSOURCE_PCLK1) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if(srcclk == RCC_I2C4CLKSOURCE_SYSCLK) + { + frequency = HAL_RCC_GetSysClockFreq(); + } + else if((srcclk == RCC_I2C4CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + /* Clock not enabled for I2C4 */ + else + { + frequency = 0U; + } + break; + +#endif /* I2C4 */ + + case RCC_PERIPHCLK_LPTIM1: + /* Get the current LPTIM1 source */ + srcclk = __HAL_RCC_GET_LPTIM1_SOURCE(); + + if(srcclk == RCC_LPTIM1CLKSOURCE_PCLK) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if((srcclk == RCC_LPTIM1CLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY))) + { + frequency = LSI_VALUE; + } + else if((srcclk == RCC_LPTIM1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if ((srcclk == RCC_LPTIM1CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for LPTIM1 */ + else + { + frequency = 0U; + } + break; + + case RCC_PERIPHCLK_LPTIM2: + /* Get the current LPTIM2 source */ + srcclk = __HAL_RCC_GET_LPTIM2_SOURCE(); + + if(srcclk == RCC_LPTIM2CLKSOURCE_PCLK) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if((srcclk == RCC_LPTIM2CLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY))) + { + frequency = LSI_VALUE; + } + else if((srcclk == RCC_LPTIM2CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + else if ((srcclk == RCC_LPTIM2CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) + { + frequency = LSE_VALUE; + } + /* Clock not enabled for LPTIM2 */ + else + { + frequency = 0U; + } + break; + +#if defined(SWPMI1) + + case RCC_PERIPHCLK_SWPMI1: + /* Get the current SWPMI1 source */ + srcclk = __HAL_RCC_GET_SWPMI1_SOURCE(); + + if(srcclk == RCC_SWPMI1CLKSOURCE_PCLK) + { + frequency = HAL_RCC_GetPCLK1Freq(); + } + else if((srcclk == RCC_SWPMI1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) + { + frequency = HSI_VALUE; + } + /* Clock not enabled for SWPMI1 */ + else + { + frequency = 0U; + } + break; + +#endif /* SWPMI1 */ + + default: + break; + } + } + + return(frequency); +} + +/** + * @} + */ + +/** @defgroup RCCEx_Exported_Functions_Group2 Extended Clock management functions + * @brief Extended Clock management functions + * +@verbatim + =============================================================================== + ##### Extended clock management functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to control the + activation or deactivation of MSI PLL-mode, PLLSAI1, PLLSAI2, LSE CSS, + Low speed clock output and clock after wake-up from STOP mode. +@endverbatim + * @{ + */ + +/** + * @brief Enable PLLSAI1. + * @param PLLSAI1Init pointer to an RCC_PLLSAI1InitTypeDef structure that + * contains the configuration information for the PLLSAI1 + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RCCEx_EnablePLLSAI1(RCC_PLLSAI1InitTypeDef *PLLSAI1Init) +{ + uint32_t tickstart = 0U; + HAL_StatusTypeDef status = HAL_OK; + + /* check for PLLSAI1 Parameters used to output PLLSAI1CLK */ + assert_param(IS_RCC_PLLSAI1SOURCE(PLLSAI1Init->PLLSAI1Source)); + assert_param(IS_RCC_PLLSAI1M_VALUE(PLLSAI1Init->PLLSAI1M)); + assert_param(IS_RCC_PLLSAI1N_VALUE(PLLSAI1Init->PLLSAI1N)); + assert_param(IS_RCC_PLLSAI1P_VALUE(PLLSAI1Init->PLLSAI1P)); + assert_param(IS_RCC_PLLSAI1Q_VALUE(PLLSAI1Init->PLLSAI1Q)); + assert_param(IS_RCC_PLLSAI1R_VALUE(PLLSAI1Init->PLLSAI1R)); + assert_param(IS_RCC_PLLSAI1CLOCKOUT_VALUE(PLLSAI1Init->PLLSAI1ClockOut)); + + /* Disable the PLLSAI1 */ + __HAL_RCC_PLLSAI1_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI1 is ready to be updated */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI1RDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI1_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + if(status == HAL_OK) + { + /* Configure the PLLSAI1 Multiplication factor N */ + /* Configure the PLLSAI1 Division factors P, Q and R */ + __HAL_RCC_PLLSAI1_CONFIG(PLLSAI1Init->PLLSAI1N, PLLSAI1Init->PLLSAI1P, PLLSAI1Init->PLLSAI1Q, PLLSAI1Init->PLLSAI1R); + /* Configure the PLLSAI1 Clock output(s) */ + __HAL_RCC_PLLSAI1CLKOUT_ENABLE(PLLSAI1Init->PLLSAI1ClockOut); + + /* Enable the PLLSAI1 again by setting PLLSAI1ON to 1*/ + __HAL_RCC_PLLSAI1_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI1 is ready */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI1RDY) == RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI1_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + } + + return status; +} + +/** + * @brief Disable PLLSAI1. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RCCEx_DisablePLLSAI1(void) +{ + uint32_t tickstart = 0U; + HAL_StatusTypeDef status = HAL_OK; + + /* Disable the PLLSAI1 */ + __HAL_RCC_PLLSAI1_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI1 is ready */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI1RDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI1_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + /* Disable the PLLSAI1 Clock outputs */ + __HAL_RCC_PLLSAI1CLKOUT_DISABLE(RCC_PLLSAI1CFGR_PLLSAI1PEN|RCC_PLLSAI1CFGR_PLLSAI1QEN|RCC_PLLSAI1CFGR_PLLSAI1REN); + + /* Reset PLL source to save power if no PLLs on */ + if((READ_BIT(RCC->CR, RCC_CR_PLLRDY) == RESET) +#if defined(RCC_PLLSAI2_SUPPORT) + && + (READ_BIT(RCC->CR, RCC_CR_PLLSAI2RDY) == RESET) +#endif /* RCC_PLLSAI2_SUPPORT */ + ) + { + MODIFY_REG(RCC->PLLCFGR, RCC_PLLCFGR_PLLSRC, RCC_PLLSOURCE_NONE); + } + + return status; +} + +#if defined(RCC_PLLSAI2_SUPPORT) + +/** + * @brief Enable PLLSAI2. + * @param PLLSAI2Init pointer to an RCC_PLLSAI2InitTypeDef structure that + * contains the configuration information for the PLLSAI2 + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RCCEx_EnablePLLSAI2(RCC_PLLSAI2InitTypeDef *PLLSAI2Init) +{ + uint32_t tickstart = 0U; + HAL_StatusTypeDef status = HAL_OK; + + /* check for PLLSAI2 Parameters used to output PLLSAI2CLK */ + assert_param(IS_RCC_PLLSAI2SOURCE(PLLSAI2Init->PLLSAI2Source)); + assert_param(IS_RCC_PLLSAI2M_VALUE(PLLSAI2Init->PLLSAI2M)); + assert_param(IS_RCC_PLLSAI2N_VALUE(PLLSAI2Init->PLLSAI2N)); + assert_param(IS_RCC_PLLSAI2P_VALUE(PLLSAI2Init->PLLSAI2P)); + assert_param(IS_RCC_PLLSAI2R_VALUE(PLLSAI2Init->PLLSAI2R)); + assert_param(IS_RCC_PLLSAI2CLOCKOUT_VALUE(PLLSAI2Init->PLLSAI2ClockOut)); + + /* Disable the PLLSAI2 */ + __HAL_RCC_PLLSAI2_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI2 is ready to be updated */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI2RDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI2_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + if(status == HAL_OK) + { + /* Configure the PLLSAI2 Multiplication factor N */ + /* Configure the PLLSAI2 Division factors P and R */ + __HAL_RCC_PLLSAI2_CONFIG(PLLSAI2Init->PLLSAI2N, PLLSAI2Init->PLLSAI2P, PLLSAI2Init->PLLSAI2R); + /* Configure the PLLSAI2 Clock output(s) */ + __HAL_RCC_PLLSAI2CLKOUT_ENABLE(PLLSAI2Init->PLLSAI2ClockOut); + + /* Enable the PLLSAI2 again by setting PLLSAI2ON to 1*/ + __HAL_RCC_PLLSAI2_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI2 is ready */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI2RDY) == RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI2_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + } + + return status; +} + +/** + * @brief Disable PLLISAI2. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RCCEx_DisablePLLSAI2(void) +{ + uint32_t tickstart = 0U; + HAL_StatusTypeDef status = HAL_OK; + + /* Disable the PLLSAI2 */ + __HAL_RCC_PLLSAI2_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI2 is ready */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI2RDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI2_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + /* Disable the PLLSAI2 Clock outputs */ + __HAL_RCC_PLLSAI2CLKOUT_DISABLE(RCC_PLLSAI2CFGR_PLLSAI2PEN|RCC_PLLSAI2CFGR_PLLSAI2REN); + + /* Reset PLL source to save power if no PLLs on */ + if((READ_BIT(RCC->CR, RCC_CR_PLLRDY) == RESET) + && + (READ_BIT(RCC->CR, RCC_CR_PLLSAI1RDY) == RESET) + ) + { + MODIFY_REG(RCC->PLLCFGR, RCC_PLLCFGR_PLLSRC, RCC_PLLSOURCE_NONE); + } + + return status; +} + +#endif /* RCC_PLLSAI2_SUPPORT */ + +/** + * @brief Configure the oscillator clock source for wakeup from Stop and CSS backup clock. + * @param WakeUpClk Wakeup clock + * This parameter can be one of the following values: + * @arg @ref RCC_STOP_WAKEUPCLOCK_MSI MSI oscillator selection + * @arg @ref RCC_STOP_WAKEUPCLOCK_HSI HSI oscillator selection + * @note This function shall not be called after the Clock Security System on HSE has been + * enabled. + * @retval None + */ +void HAL_RCCEx_WakeUpStopCLKConfig(uint32_t WakeUpClk) +{ + assert_param(IS_RCC_STOP_WAKEUPCLOCK(WakeUpClk)); + + __HAL_RCC_WAKEUPSTOP_CLK_CONFIG(WakeUpClk); +} + +/** + * @brief Configure the MSI range after standby mode. + * @note After Standby its frequency can be selected between 4 possible values (1, 2, 4 or 8 MHz). + * @param MSIRange MSI range + * This parameter can be one of the following values: + * @arg @ref RCC_MSIRANGE_4 Range 4 around 1 MHz + * @arg @ref RCC_MSIRANGE_5 Range 5 around 2 MHz + * @arg @ref RCC_MSIRANGE_6 Range 6 around 4 MHz (reset value) + * @arg @ref RCC_MSIRANGE_7 Range 7 around 8 MHz + * @retval None + */ +void HAL_RCCEx_StandbyMSIRangeConfig(uint32_t MSIRange) +{ + assert_param(IS_RCC_MSI_STANDBY_CLOCK_RANGE(MSIRange)); + + __HAL_RCC_MSI_STANDBY_RANGE_CONFIG(MSIRange); +} + +/** + * @brief Enable the LSE Clock Security System. + * @note Prior to enable the LSE Clock Security System, LSE oscillator is to be enabled + * with HAL_RCC_OscConfig() and the LSE oscillator clock is to be selected as RTC + * clock with HAL_RCCEx_PeriphCLKConfig(). + * @retval None + */ +void HAL_RCCEx_EnableLSECSS(void) +{ + SET_BIT(RCC->BDCR, RCC_BDCR_LSECSSON) ; +} + +/** + * @brief Disable the LSE Clock Security System. + * @note LSE Clock Security System can only be disabled after a LSE failure detection. + * @retval None + */ +void HAL_RCCEx_DisableLSECSS(void) +{ + CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSECSSON) ; + + /* Disable LSE CSS IT if any */ + __HAL_RCC_DISABLE_IT(RCC_IT_LSECSS); +} + +/** + * @brief Enable the LSE Clock Security System Interrupt & corresponding EXTI line. + * @note LSE Clock Security System Interrupt is mapped on RTC EXTI line 19 + * @retval None + */ +void HAL_RCCEx_EnableLSECSS_IT(void) +{ + /* Enable LSE CSS */ + SET_BIT(RCC->BDCR, RCC_BDCR_LSECSSON) ; + + /* Enable LSE CSS IT */ + __HAL_RCC_ENABLE_IT(RCC_IT_LSECSS); + + /* Enable IT on EXTI Line 19 */ + __HAL_RCC_LSECSS_EXTI_ENABLE_IT(); + __HAL_RCC_LSECSS_EXTI_ENABLE_RISING_EDGE(); +} + +/** + * @brief Handle the RCC LSE Clock Security System interrupt request. + * @retval None + */ +void HAL_RCCEx_LSECSS_IRQHandler(void) +{ + /* Check RCC LSE CSSF flag */ + if(__HAL_RCC_GET_IT(RCC_IT_LSECSS)) + { + /* RCC LSE Clock Security System interrupt user callback */ + HAL_RCCEx_LSECSS_Callback(); + + /* Clear RCC LSE CSS pending bit */ + __HAL_RCC_CLEAR_IT(RCC_IT_LSECSS); + } +} + +/** + * @brief RCCEx LSE Clock Security System interrupt callback. + * @retval none + */ +__weak void HAL_RCCEx_LSECSS_Callback(void) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the @ref HAL_RCCEx_LSECSS_Callback should be implemented in the user file + */ +} + +/** + * @brief Select the Low Speed clock source to output on LSCO pin (PA2). + * @param LSCOSource specifies the Low Speed clock source to output. + * This parameter can be one of the following values: + * @arg @ref RCC_LSCOSOURCE_LSI LSI clock selected as LSCO source + * @arg @ref RCC_LSCOSOURCE_LSE LSE clock selected as LSCO source + * @retval None + */ +void HAL_RCCEx_EnableLSCO(uint32_t LSCOSource) +{ + GPIO_InitTypeDef GPIO_InitStruct; + FlagStatus pwrclkchanged = RESET; + FlagStatus backupchanged = RESET; + + /* Check the parameters */ + assert_param(IS_RCC_LSCOSOURCE(LSCOSource)); + + /* LSCO Pin Clock Enable */ + __LSCO_CLK_ENABLE(); + + /* Configue the LSCO pin in analog mode */ + GPIO_InitStruct.Pin = LSCO_PIN; + GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(LSCO_GPIO_PORT, &GPIO_InitStruct); + + /* Update LSCOSEL clock source in Backup Domain control register */ + if(__HAL_RCC_PWR_IS_CLK_DISABLED()) + { + __HAL_RCC_PWR_CLK_ENABLE(); + pwrclkchanged = SET; + } + if(HAL_IS_BIT_CLR(PWR->CR1, PWR_CR1_DBP)) + { + HAL_PWR_EnableBkUpAccess(); + backupchanged = SET; + } + + MODIFY_REG(RCC->BDCR, RCC_BDCR_LSCOSEL | RCC_BDCR_LSCOEN, LSCOSource | RCC_BDCR_LSCOEN); + + if(backupchanged == SET) + { + HAL_PWR_DisableBkUpAccess(); + } + if(pwrclkchanged == SET) + { + __HAL_RCC_PWR_CLK_DISABLE(); + } +} + +/** + * @brief Disable the Low Speed clock output. + * @retval None + */ +void HAL_RCCEx_DisableLSCO(void) +{ + FlagStatus pwrclkchanged = RESET; + FlagStatus backupchanged = RESET; + + /* Update LSCOEN bit in Backup Domain control register */ + if(__HAL_RCC_PWR_IS_CLK_DISABLED()) + { + __HAL_RCC_PWR_CLK_ENABLE(); + pwrclkchanged = SET; + } + if(HAL_IS_BIT_CLR(PWR->CR1, PWR_CR1_DBP)) + { + /* Enable access to the backup domain */ + HAL_PWR_EnableBkUpAccess(); + backupchanged = SET; + } + + CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSCOEN); + + /* Restore previous configuration */ + if(backupchanged == SET) + { + /* Disable access to the backup domain */ + HAL_PWR_DisableBkUpAccess(); + } + if(pwrclkchanged == SET) + { + __HAL_RCC_PWR_CLK_DISABLE(); + } +} + +/** + * @brief Enable the PLL-mode of the MSI. + * @note Prior to enable the PLL-mode of the MSI for automatic hardware + * calibration LSE oscillator is to be enabled with HAL_RCC_OscConfig(). + * @retval None + */ +void HAL_RCCEx_EnableMSIPLLMode(void) +{ + SET_BIT(RCC->CR, RCC_CR_MSIPLLEN) ; +} + +/** + * @brief Disable the PLL-mode of the MSI. + * @note PLL-mode of the MSI is automatically reset when LSE oscillator is disabled. + * @retval None + */ +void HAL_RCCEx_DisableMSIPLLMode(void) +{ + CLEAR_BIT(RCC->CR, RCC_CR_MSIPLLEN) ; +} + +/** + * @} + */ + +#if defined(CRS) + +/** @defgroup RCCEx_Exported_Functions_Group3 Extended Clock Recovery System Control functions + * @brief Extended Clock Recovery System Control functions + * +@verbatim + =============================================================================== + ##### Extended Clock Recovery System Control functions ##### + =============================================================================== + [..] + For devices with Clock Recovery System feature (CRS), RCC Extention HAL driver can be used as follows: + + (#) In System clock config, HSI48 needs to be enabled + + (#) Enable CRS clock in IP MSP init which will use CRS functions + + (#) Call CRS functions as follows: + (##) Prepare synchronization configuration necessary for HSI48 calibration + (+++) Default values can be set for frequency Error Measurement (reload and error limit) + and also HSI48 oscillator smooth trimming. + (+++) Macro __HAL_RCC_CRS_RELOADVALUE_CALCULATE can be also used to calculate + directly reload value with target and sychronization frequencies values + (##) Call function HAL_RCCEx_CRSConfig which + (+++) Resets CRS registers to their default values. + (+++) Configures CRS registers with synchronization configuration + (+++) Enables automatic calibration and frequency error counter feature + Note: When using USB LPM (Link Power Management) and the device is in Sleep mode, the + periodic USB SOF will not be generated by the host. No SYNC signal will therefore be + provided to the CRS to calibrate the HSI48 on the run. To guarantee the required clock + precision after waking up from Sleep mode, the LSE or reference clock on the GPIOs + should be used as SYNC signal. + + (##) A polling function is provided to wait for complete synchronization + (+++) Call function HAL_RCCEx_CRSWaitSynchronization() + (+++) According to CRS status, user can decide to adjust again the calibration or continue + application if synchronization is OK + + (#) User can retrieve information related to synchronization in calling function + HAL_RCCEx_CRSGetSynchronizationInfo() + + (#) Regarding synchronization status and synchronization information, user can try a new calibration + in changing synchronization configuration and call again HAL_RCCEx_CRSConfig. + Note: When the SYNC event is detected during the downcounting phase (before reaching the zero value), + it means that the actual frequency is lower than the target (and so, that the TRIM value should be + incremented), while when it is detected during the upcounting phase it means that the actual frequency + is higher (and that the TRIM value should be decremented). + + (#) In interrupt mode, user can resort to the available macros (__HAL_RCC_CRS_XXX_IT). Interrupts will go + through CRS Handler (CRS_IRQn/CRS_IRQHandler) + (++) Call function HAL_RCCEx_CRSConfig() + (++) Enable CRS_IRQn (thanks to NVIC functions) + (++) Enable CRS interrupt (__HAL_RCC_CRS_ENABLE_IT) + (++) Implement CRS status management in the following user callbacks called from + HAL_RCCEx_CRS_IRQHandler(): + (+++) HAL_RCCEx_CRS_SyncOkCallback() + (+++) HAL_RCCEx_CRS_SyncWarnCallback() + (+++) HAL_RCCEx_CRS_ExpectedSyncCallback() + (+++) HAL_RCCEx_CRS_ErrorCallback() + + (#) To force a SYNC EVENT, user can use the function HAL_RCCEx_CRSSoftwareSynchronizationGenerate(). + This function can be called before calling HAL_RCCEx_CRSConfig (for instance in Systick handler) + +@endverbatim + * @{ + */ + +/** + * @brief Start automatic synchronization for polling mode + * @param pInit Pointer on RCC_CRSInitTypeDef structure + * @retval None + */ +void HAL_RCCEx_CRSConfig(RCC_CRSInitTypeDef *pInit) +{ + uint32_t value = 0; + + /* Check the parameters */ + assert_param(IS_RCC_CRS_SYNC_DIV(pInit->Prescaler)); + assert_param(IS_RCC_CRS_SYNC_SOURCE(pInit->Source)); + assert_param(IS_RCC_CRS_SYNC_POLARITY(pInit->Polarity)); + assert_param(IS_RCC_CRS_RELOADVALUE(pInit->ReloadValue)); + assert_param(IS_RCC_CRS_ERRORLIMIT(pInit->ErrorLimitValue)); + assert_param(IS_RCC_CRS_HSI48CALIBRATION(pInit->HSI48CalibrationValue)); + + /* CONFIGURATION */ + + /* Before configuration, reset CRS registers to their default values*/ + __HAL_RCC_CRS_FORCE_RESET(); + __HAL_RCC_CRS_RELEASE_RESET(); + + /* Set the SYNCDIV[2:0] bits according to Prescaler value */ + /* Set the SYNCSRC[1:0] bits according to Source value */ + /* Set the SYNCSPOL bit according to Polarity value */ + value = (pInit->Prescaler | pInit->Source | pInit->Polarity); + /* Set the RELOAD[15:0] bits according to ReloadValue value */ + value |= pInit->ReloadValue; + /* Set the FELIM[7:0] bits according to ErrorLimitValue value */ + value |= (pInit->ErrorLimitValue << POSITION_VAL(CRS_CFGR_FELIM)); + WRITE_REG(CRS->CFGR, value); + + /* Adjust HSI48 oscillator smooth trimming */ + /* Set the TRIM[5:0] bits according to RCC_CRS_HSI48CalibrationValue value */ + MODIFY_REG(CRS->CR, CRS_CR_TRIM, (pInit->HSI48CalibrationValue << POSITION_VAL(CRS_CR_TRIM))); + + /* START AUTOMATIC SYNCHRONIZATION*/ + + /* Enable Automatic trimming & Frequency error counter */ + SET_BIT(CRS->CR, CRS_CR_AUTOTRIMEN | CRS_CR_CEN); +} + +/** + * @brief Generate the software synchronization event + * @retval None + */ +void HAL_RCCEx_CRSSoftwareSynchronizationGenerate(void) +{ + SET_BIT(CRS->CR, CRS_CR_SWSYNC); +} + +/** + * @brief Return synchronization info + * @param pSynchroInfo Pointer on RCC_CRSSynchroInfoTypeDef structure + * @retval None + */ +void HAL_RCCEx_CRSGetSynchronizationInfo(RCC_CRSSynchroInfoTypeDef *pSynchroInfo) +{ + /* Check the parameter */ + assert_param(pSynchroInfo != NULL); + + /* Get the reload value */ + pSynchroInfo->ReloadValue = (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_RELOAD)); + + /* Get HSI48 oscillator smooth trimming */ + pSynchroInfo->HSI48CalibrationValue = (uint32_t)(READ_BIT(CRS->CR, CRS_CR_TRIM) >> POSITION_VAL(CRS_CR_TRIM)); + + /* Get Frequency error capture */ + pSynchroInfo->FreqErrorCapture = (uint32_t)(READ_BIT(CRS->ISR, CRS_ISR_FECAP) >> POSITION_VAL(CRS_ISR_FECAP)); + + /* Get Frequency error direction */ + pSynchroInfo->FreqErrorDirection = (uint32_t)(READ_BIT(CRS->ISR, CRS_ISR_FEDIR)); +} + +/** +* @brief Wait for CRS Synchronization status. +* @param Timeout Duration of the timeout +* @note Timeout is based on the maximum time to receive a SYNC event based on synchronization +* frequency. +* @note If Timeout set to HAL_MAX_DELAY, HAL_TIMEOUT will be never returned. +* @retval Combination of Synchronization status +* This parameter can be a combination of the following values: +* @arg @ref RCC_CRS_TIMEOUT +* @arg @ref RCC_CRS_SYNCOK +* @arg @ref RCC_CRS_SYNCWARN +* @arg @ref RCC_CRS_SYNCERR +* @arg @ref RCC_CRS_SYNCMISS +* @arg @ref RCC_CRS_TRIMOVF +*/ +uint32_t HAL_RCCEx_CRSWaitSynchronization(uint32_t Timeout) +{ + uint32_t crsstatus = RCC_CRS_NONE; + uint32_t tickstart = 0U; + + /* Get timeout */ + tickstart = HAL_GetTick(); + + /* Wait for CRS flag or timeout detection */ + do + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout)) + { + crsstatus = RCC_CRS_TIMEOUT; + } + } + /* Check CRS SYNCOK flag */ + if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCOK)) + { + /* CRS SYNC event OK */ + crsstatus |= RCC_CRS_SYNCOK; + + /* Clear CRS SYNC event OK bit */ + __HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCOK); + } + + /* Check CRS SYNCWARN flag */ + if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCWARN)) + { + /* CRS SYNC warning */ + crsstatus |= RCC_CRS_SYNCWARN; + + /* Clear CRS SYNCWARN bit */ + __HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCWARN); + } + + /* Check CRS TRIM overflow flag */ + if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_TRIMOVF)) + { + /* CRS SYNC Error */ + crsstatus |= RCC_CRS_TRIMOVF; + + /* Clear CRS Error bit */ + __HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_TRIMOVF); + } + + /* Check CRS Error flag */ + if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCERR)) + { + /* CRS SYNC Error */ + crsstatus |= RCC_CRS_SYNCERR; + + /* Clear CRS Error bit */ + __HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCERR); + } + + /* Check CRS SYNC Missed flag */ + if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCMISS)) + { + /* CRS SYNC Missed */ + crsstatus |= RCC_CRS_SYNCMISS; + + /* Clear CRS SYNC Missed bit */ + __HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCMISS); + } + + /* Check CRS Expected SYNC flag */ + if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_ESYNC)) + { + /* frequency error counter reached a zero value */ + __HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_ESYNC); + } + } while(RCC_CRS_NONE == crsstatus); + + return crsstatus; +} + +/** + * @brief Handle the Clock Recovery System interrupt request. + * @retval None + */ +void HAL_RCCEx_CRS_IRQHandler(void) +{ + uint32_t crserror = RCC_CRS_NONE; + /* Get current IT flags and IT sources values */ + uint32_t itflags = READ_REG(CRS->ISR); + uint32_t itsources = READ_REG(CRS->CR); + + /* Check CRS SYNCOK flag */ + if(((itflags & RCC_CRS_FLAG_SYNCOK) != RESET) && ((itsources & RCC_CRS_IT_SYNCOK) != RESET)) + { + /* Clear CRS SYNC event OK flag */ + WRITE_REG(CRS->ICR, CRS_ICR_SYNCOKC); + + /* user callback */ + HAL_RCCEx_CRS_SyncOkCallback(); + } + /* Check CRS SYNCWARN flag */ + else if(((itflags & RCC_CRS_FLAG_SYNCWARN) != RESET) && ((itsources & RCC_CRS_IT_SYNCWARN) != RESET)) + { + /* Clear CRS SYNCWARN flag */ + WRITE_REG(CRS->ICR, CRS_ICR_SYNCWARNC); + + /* user callback */ + HAL_RCCEx_CRS_SyncWarnCallback(); + } + /* Check CRS Expected SYNC flag */ + else if(((itflags & RCC_CRS_FLAG_ESYNC) != RESET) && ((itsources & RCC_CRS_IT_ESYNC) != RESET)) + { + /* frequency error counter reached a zero value */ + WRITE_REG(CRS->ICR, CRS_ICR_ESYNCC); + + /* user callback */ + HAL_RCCEx_CRS_ExpectedSyncCallback(); + } + /* Check CRS Error flags */ + else + { + if(((itflags & RCC_CRS_FLAG_ERR) != RESET) && ((itsources & RCC_CRS_IT_ERR) != RESET)) + { + if((itflags & RCC_CRS_FLAG_SYNCERR) != RESET) + { + crserror |= RCC_CRS_SYNCERR; + } + if((itflags & RCC_CRS_FLAG_SYNCMISS) != RESET) + { + crserror |= RCC_CRS_SYNCMISS; + } + if((itflags & RCC_CRS_FLAG_TRIMOVF) != RESET) + { + crserror |= RCC_CRS_TRIMOVF; + } + + /* Clear CRS Error flags */ + WRITE_REG(CRS->ICR, CRS_ICR_ERRC); + + /* user error callback */ + HAL_RCCEx_CRS_ErrorCallback(crserror); + } + } +} + +/** + * @brief RCCEx Clock Recovery System SYNCOK interrupt callback. + * @retval none + */ +__weak void HAL_RCCEx_CRS_SyncOkCallback(void) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the @ref HAL_RCCEx_CRS_SyncOkCallback should be implemented in the user file + */ +} + +/** + * @brief RCCEx Clock Recovery System SYNCWARN interrupt callback. + * @retval none + */ +__weak void HAL_RCCEx_CRS_SyncWarnCallback(void) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the @ref HAL_RCCEx_CRS_SyncWarnCallback should be implemented in the user file + */ +} + +/** + * @brief RCCEx Clock Recovery System Expected SYNC interrupt callback. + * @retval none + */ +__weak void HAL_RCCEx_CRS_ExpectedSyncCallback(void) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the @ref HAL_RCCEx_CRS_ExpectedSyncCallback should be implemented in the user file + */ +} + +/** + * @brief RCCEx Clock Recovery System Error interrupt callback. + * @param Error Combination of Error status. + * This parameter can be a combination of the following values: + * @arg @ref RCC_CRS_SYNCERR + * @arg @ref RCC_CRS_SYNCMISS + * @arg @ref RCC_CRS_TRIMOVF + * @retval none + */ +__weak void HAL_RCCEx_CRS_ErrorCallback(uint32_t Error) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(Error); + + /* NOTE : This function should not be modified, when the callback is needed, + the @ref HAL_RCCEx_CRS_ErrorCallback should be implemented in the user file + */ +} + +/** + * @} + */ + +#endif /* CRS */ + +/** + * @} + */ + +/** @addtogroup RCCEx_Private_Functions + * @{ + */ + +/** + * @brief Configure the parameters N & P & optionally M of PLLSAI1 and enable PLLSAI1 output clock(s). + * @param PllSai1 pointer to an RCC_PLLSAI1InitTypeDef structure that + * contains the configuration parameters N & P & optionally M as well as PLLSAI1 output clock(s) + * @param Divider divider parameter to be updated + * + * @note PLLSAI1 is temporary disable to apply new parameters + * + * @retval HAL status + */ +static HAL_StatusTypeDef RCCEx_PLLSAI1_Config(RCC_PLLSAI1InitTypeDef *PllSai1, uint32_t Divider) +{ + uint32_t tickstart = 0U; + HAL_StatusTypeDef status = HAL_OK; + + /* check for PLLSAI1 Parameters used to output PLLSAI1CLK */ + /* P, Q and R dividers are verified in each specific divider case below */ + assert_param(IS_RCC_PLLSAI1SOURCE(PllSai1->PLLSAI1Source)); + assert_param(IS_RCC_PLLSAI1M_VALUE(PllSai1->PLLSAI1M)); + assert_param(IS_RCC_PLLSAI1N_VALUE(PllSai1->PLLSAI1N)); + assert_param(IS_RCC_PLLSAI1CLOCKOUT_VALUE(PllSai1->PLLSAI1ClockOut)); + + /* Check that PLLSAI1 clock source and divider M can be applied */ + if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_NONE) + { + /* PLL clock source and divider M already set, check that no request for change */ + if((__HAL_RCC_GET_PLL_OSCSOURCE() != PllSai1->PLLSAI1Source) + || + (PllSai1->PLLSAI1Source == RCC_PLLSOURCE_NONE) + || + (((READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLM) >> POSITION_VAL(RCC_PLLCFGR_PLLM)) + 1U) != PllSai1->PLLSAI1M) + ) + { + status = HAL_ERROR; + } + } + else + { + /* Check PLLSAI1 clock source availability */ + switch(PllSai1->PLLSAI1Source) + { + case RCC_PLLSOURCE_MSI: + if(HAL_IS_BIT_CLR(RCC->CR, RCC_CR_MSIRDY)) + { + status = HAL_ERROR; + } + break; + case RCC_PLLSOURCE_HSI: + if(HAL_IS_BIT_CLR(RCC->CR, RCC_CR_HSIRDY)) + { + status = HAL_ERROR; + } + break; + case RCC_PLLSOURCE_HSE: + if(HAL_IS_BIT_CLR(RCC->CR, RCC_CR_HSERDY) && HAL_IS_BIT_CLR(RCC->CR, RCC_CR_HSEBYP)) + { + status = HAL_ERROR; + } + break; + default: + status = HAL_ERROR; + break; + } + + if(status == HAL_OK) + { + /* Set PLLSAI1 clock source and divider M */ + MODIFY_REG(RCC->PLLCFGR, RCC_PLLCFGR_PLLSRC | RCC_PLLCFGR_PLLM, PllSai1->PLLSAI1Source | (PllSai1->PLLSAI1M - 1U) << POSITION_VAL(RCC_PLLCFGR_PLLM)); + } + } + + if(status == HAL_OK) + { + /* Disable the PLLSAI1 */ + __HAL_RCC_PLLSAI1_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI1 is ready to be updated */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI1RDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI1_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + if(status == HAL_OK) + { + if(Divider == DIVIDER_P_UPDATE) + { + assert_param(IS_RCC_PLLSAI1P_VALUE(PllSai1->PLLSAI1P)); + /* Configure the PLLSAI1 Division factor P and Multiplication factor N*/ +#if defined(RCC_PLLSAI1P_DIV_2_31_SUPPORT) + MODIFY_REG(RCC->PLLSAI1CFGR, + RCC_PLLSAI1CFGR_PLLSAI1N | RCC_PLLSAI1CFGR_PLLSAI1PDIV, + (PllSai1->PLLSAI1N << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N)) | + (PllSai1->PLLSAI1P << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1PDIV))); +#else + MODIFY_REG(RCC->PLLSAI1CFGR, + RCC_PLLSAI1CFGR_PLLSAI1N | RCC_PLLSAI1CFGR_PLLSAI1P, + (PllSai1->PLLSAI1N << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N)) | + ((PllSai1->PLLSAI1P >> 4U) << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1P))); +#endif /* RCC_PLLSAI1P_DIV_2_31_SUPPORT */ + } + else if(Divider == DIVIDER_Q_UPDATE) + { + assert_param(IS_RCC_PLLSAI1Q_VALUE(PllSai1->PLLSAI1Q)); + /* Configure the PLLSAI1 Division factor Q and Multiplication factor N*/ + MODIFY_REG(RCC->PLLSAI1CFGR, + RCC_PLLSAI1CFGR_PLLSAI1N | RCC_PLLSAI1CFGR_PLLSAI1Q, + (PllSai1->PLLSAI1N << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N)) | + (((PllSai1->PLLSAI1Q >> 1U) - 1U) << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1Q))); + } + else + { + assert_param(IS_RCC_PLLSAI1R_VALUE(PllSai1->PLLSAI1R)); + /* Configure the PLLSAI1 Division factor R and Multiplication factor N*/ + MODIFY_REG(RCC->PLLSAI1CFGR, + RCC_PLLSAI1CFGR_PLLSAI1N | RCC_PLLSAI1CFGR_PLLSAI1R, + (PllSai1->PLLSAI1N << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1N)) | + (((PllSai1->PLLSAI1R >> 1U) - 1U) << POSITION_VAL(RCC_PLLSAI1CFGR_PLLSAI1R))); + } + + /* Enable the PLLSAI1 again by setting PLLSAI1ON to 1*/ + __HAL_RCC_PLLSAI1_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI1 is ready */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI1RDY) == RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI1_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + if(status == HAL_OK) + { + /* Configure the PLLSAI1 Clock output(s) */ + __HAL_RCC_PLLSAI1CLKOUT_ENABLE(PllSai1->PLLSAI1ClockOut); + } + } + } + + return status; +} + +#if defined(RCC_PLLSAI2_SUPPORT) + +/** + * @brief Configure the parameters N & P & optionally M of PLLSAI2 and enable PLLSAI2 output clock(s). + * @param PllSai2 pointer to an RCC_PLLSAI2InitTypeDef structure that + * contains the configuration parameters N & P & optionally M as well as PLLSAI2 output clock(s) + * @param Divider divider parameter to be updated + * + * @note PLLSAI2 is temporary disable to apply new parameters + * + * @retval HAL status + */ +static HAL_StatusTypeDef RCCEx_PLLSAI2_Config(RCC_PLLSAI2InitTypeDef *PllSai2, uint32_t Divider) +{ + uint32_t tickstart = 0U; + HAL_StatusTypeDef status = HAL_OK; + + /* check for PLLSAI2 Parameters used to output PLLSAI2CLK */ + /* P, Q and R dividers are verified in each specific divider case below */ + assert_param(IS_RCC_PLLSAI2SOURCE(PllSai2->PLLSAI2Source)); + assert_param(IS_RCC_PLLSAI2M_VALUE(PllSai2->PLLSAI2M)); + assert_param(IS_RCC_PLLSAI2N_VALUE(PllSai2->PLLSAI2N)); + assert_param(IS_RCC_PLLSAI2CLOCKOUT_VALUE(PllSai2->PLLSAI2ClockOut)); + + /* Check that PLLSAI2 clock source and divider M can be applied */ + if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_NONE) + { + /* PLL clock source and divider M already set, check that no request for change */ + if((__HAL_RCC_GET_PLL_OSCSOURCE() != PllSai2->PLLSAI2Source) + || + (PllSai2->PLLSAI2Source == RCC_PLLSOURCE_NONE) + || + (((READ_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLM) >> POSITION_VAL(RCC_PLLCFGR_PLLM)) + 1U) != PllSai2->PLLSAI2M) + ) + { + status = HAL_ERROR; + } + } + else + { + /* Check PLLSAI2 clock source availability */ + switch(PllSai2->PLLSAI2Source) + { + case RCC_PLLSOURCE_MSI: + if(HAL_IS_BIT_CLR(RCC->CR, RCC_CR_MSIRDY)) + { + status = HAL_ERROR; + } + break; + case RCC_PLLSOURCE_HSI: + if(HAL_IS_BIT_CLR(RCC->CR, RCC_CR_HSIRDY)) + { + status = HAL_ERROR; + } + break; + case RCC_PLLSOURCE_HSE: + if(HAL_IS_BIT_CLR(RCC->CR, RCC_CR_HSERDY) && HAL_IS_BIT_CLR(RCC->CR, RCC_CR_HSEBYP)) + { + status = HAL_ERROR; + } + break; + default: + status = HAL_ERROR; + break; + } + + if(status == HAL_OK) + { + /* Set PLLSAI2 clock source and divider M */ + MODIFY_REG(RCC->PLLCFGR, RCC_PLLCFGR_PLLSRC | RCC_PLLCFGR_PLLM, PllSai2->PLLSAI2Source | (PllSai2->PLLSAI2M - 1U) << POSITION_VAL(RCC_PLLCFGR_PLLM)); + } + } + + if(status == HAL_OK) + { + /* Disable the PLLSAI2 */ + __HAL_RCC_PLLSAI2_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI2 is ready to be updated */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI2RDY) != RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI2_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + if(status == HAL_OK) + { + if(Divider == DIVIDER_P_UPDATE) + { + assert_param(IS_RCC_PLLSAI2P_VALUE(PllSai2->PLLSAI2P)); + /* Configure the PLLSAI2 Division factor P and Multiplication factor N*/ + MODIFY_REG(RCC->PLLSAI2CFGR, + RCC_PLLSAI2CFGR_PLLSAI2N | RCC_PLLSAI2CFGR_PLLSAI2P, + (PllSai2->PLLSAI2N << POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2N)) | + ((PllSai2->PLLSAI2P >> 4U) << POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2P))); + } + else + { + assert_param(IS_RCC_PLLSAI2R_VALUE(PllSai2->PLLSAI2R)); + /* Configure the PLLSAI2 Division factor R and Multiplication factor N*/ + MODIFY_REG(RCC->PLLSAI2CFGR, + RCC_PLLSAI2CFGR_PLLSAI2N | RCC_PLLSAI2CFGR_PLLSAI2R, + (PllSai2->PLLSAI2N << POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2N)) | + (((PllSai2->PLLSAI2R >> 1U) - 1U) << POSITION_VAL(RCC_PLLSAI2CFGR_PLLSAI2R))); + } + + /* Enable the PLLSAI2 again by setting PLLSAI2ON to 1*/ + __HAL_RCC_PLLSAI2_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till PLLSAI2 is ready */ + while(READ_BIT(RCC->CR, RCC_CR_PLLSAI2RDY) == RESET) + { + if((HAL_GetTick() - tickstart) > PLLSAI2_TIMEOUT_VALUE) + { + status = HAL_TIMEOUT; + break; + } + } + + if(status == HAL_OK) + { + /* Configure the PLLSAI2 Clock output(s) */ + __HAL_RCC_PLLSAI2CLKOUT_ENABLE(PllSai2->PLLSAI2ClockOut); + } + } + } + + return status; +} + +#endif /* RCC_PLLSAI2_SUPPORT */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_RCC_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +