From aa38e5c1f48e31213ee349aa5cd6f06c85bda70d Mon Sep 17 00:00:00 2001
From: android <android@lingyun.com>
Date: Tue, 25 Jun 2024 21:49:39 +0800
Subject: [PATCH] Add GD32F103RCT6 ADC converter board SDK source code
---
mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c | 863 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 863 insertions(+), 0 deletions(-)
diff --git a/mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c b/mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c
new file mode 100644
index 0000000..4719727
--- /dev/null
+++ b/mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c
@@ -0,0 +1,863 @@
+/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_rcc_ex.c
+ * @author MCD Application Team
+ * @brief Extended 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) 2016 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+
+/** @defgroup RCCEx RCCEx
+ * @brief RCC Extension HAL module driver.
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup RCCEx_Private_Constants RCCEx Private Constants
+ * @{
+ */
+/**
+ * @}
+ */
+
+/* Private macro -------------------------------------------------------------*/
+/** @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 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 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(RTC clock).
+ *
+ * @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.
+ *
+ * @note In case of STM32F105xC or STM32F107xC devices, PLLI2S will be enabled if requested on
+ * one of 2 I2S interfaces. When PLLI2S is enabled, you need to call HAL_RCCEx_DisablePLLI2S to
+ * manually disable it.
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U, temp_reg = 0U;
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ uint32_t pllactive = 0U;
+#endif /* STM32F105xC || STM32F107xC */
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*------------------------------- RTC/LCD Configuration ------------------------*/
+ if ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == RCC_PERIPHCLK_RTC))
+ {
+ /* check for RTC Parameters used to output RTCCLK */
+ assert_param(IS_RCC_RTCCLKSOURCE(PeriphClkInit->RTCClockSelection));
+
+ FlagStatus pwrclkchanged = RESET;
+
+ /* As soon as function is called to change RTC clock source, activation of the
+ power domain is done. */
+ /* Requires to enable write access to Backup Domain of necessary */
+ if (__HAL_RCC_PWR_IS_CLK_DISABLED())
+ {
+ __HAL_RCC_PWR_CLK_ENABLE();
+ pwrclkchanged = SET;
+ }
+
+ if (HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ /* Enable write access to Backup domain */
+ SET_BIT(PWR->CR, PWR_CR_DBP);
+
+ /* Wait for Backup domain Write protection disable */
+ tickstart = HAL_GetTick();
+
+ while (HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ if ((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /* Reset the Backup domain only if the RTC Clock source selection is modified from reset value */
+ temp_reg = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if ((temp_reg != 0x00000000U) && (temp_reg != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ temp_reg = (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 = temp_reg;
+
+ /* Wait for LSERDY if LSE was enabled */
+ if (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSEON))
+ {
+ /* 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);
+
+ /* Require to disable power clock if necessary */
+ if (pwrclkchanged == SET)
+ {
+ __HAL_RCC_PWR_CLK_DISABLE();
+ }
+ }
+
+ /*------------------------------ ADC clock Configuration ------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC) == RCC_PERIPHCLK_ADC)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_ADCPLLCLK_DIV(PeriphClkInit->AdcClockSelection));
+
+ /* Configure the ADC clock source */
+ __HAL_RCC_ADC_CONFIG(PeriphClkInit->AdcClockSelection);
+ }
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ /*------------------------------ I2S2 Configuration ------------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S2) == RCC_PERIPHCLK_I2S2)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2S2CLKSOURCE(PeriphClkInit->I2s2ClockSelection));
+
+ /* Configure the I2S2 clock source */
+ __HAL_RCC_I2S2_CONFIG(PeriphClkInit->I2s2ClockSelection);
+ }
+
+ /*------------------------------ I2S3 Configuration ------------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S3) == RCC_PERIPHCLK_I2S3)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2S3CLKSOURCE(PeriphClkInit->I2s3ClockSelection));
+
+ /* Configure the I2S3 clock source */
+ __HAL_RCC_I2S3_CONFIG(PeriphClkInit->I2s3ClockSelection);
+ }
+
+ /*------------------------------ PLL I2S Configuration ----------------------*/
+ /* Check that PLLI2S need to be enabled */
+ if (HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_I2S2SRC) || HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+ {
+ /* Update flag to indicate that PLL I2S should be active */
+ pllactive = 1;
+ }
+
+ /* Check if PLL I2S need to be enabled */
+ if (pllactive == 1)
+ {
+ /* Enable PLL I2S only if not active */
+ if (HAL_IS_BIT_CLR(RCC->CR, RCC_CR_PLL3ON))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLLI2S_MUL(PeriphClkInit->PLLI2S.PLLI2SMUL));
+ assert_param(IS_RCC_HSE_PREDIV2(PeriphClkInit->PLLI2S.HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLL2 is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL2ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != PeriphClkInit->PLLI2S.HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(PeriphClkInit->PLLI2S.HSEPrediv2Value);
+
+ /* Configure the main PLLI2S multiplication factors. */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SMUL);
+
+ /* Enable the main 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 HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* Return an error only if user wants to change the PLLI2SMUL whereas PLLI2S is active */
+ if (READ_BIT(RCC->CFGR2, RCC_CFGR2_PLL3MUL) != PeriphClkInit->PLLI2S.PLLI2SMUL)
+ {
+ return HAL_ERROR;
+ }
+ }
+ }
+#endif /* STM32F105xC || STM32F107xC */
+
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+ /*------------------------------ USB clock Configuration ------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == RCC_PERIPHCLK_USB)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_USBPLLCLK_DIV(PeriphClkInit->UsbClockSelection));
+
+ /* Configure the USB clock source */
+ __HAL_RCC_USB_CONFIG(PeriphClkInit->UsbClockSelection);
+ }
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Get the PeriphClkInit 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(RTC, I2S, ADC clocks).
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t srcclk = 0U;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_RTC;
+
+ /* Get the RTC configuration -----------------------------------------------*/
+ srcclk = __HAL_RCC_GET_RTC_SOURCE();
+ /* Source clock is LSE or LSI*/
+ PeriphClkInit->RTCClockSelection = srcclk;
+
+ /* Get the ADC clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC;
+ PeriphClkInit->AdcClockSelection = __HAL_RCC_GET_ADC_SOURCE();
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ /* Get the I2S2 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S2;
+ PeriphClkInit->I2s2ClockSelection = __HAL_RCC_GET_I2S2_SOURCE();
+
+ /* Get the I2S3 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S3;
+ PeriphClkInit->I2s3ClockSelection = __HAL_RCC_GET_I2S3_SOURCE();
+
+#endif /* STM32F105xC || STM32F107xC */
+
+#if defined(STM32F103xE) || defined(STM32F103xG)
+ /* Get the I2S2 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S2;
+ PeriphClkInit->I2s2ClockSelection = RCC_I2S2CLKSOURCE_SYSCLK;
+
+ /* Get the I2S3 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S3;
+ PeriphClkInit->I2s3ClockSelection = RCC_I2S3CLKSOURCE_SYSCLK;
+
+#endif /* STM32F103xE || STM32F103xG */
+
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+ /* Get the USB clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USB;
+ PeriphClkInit->UsbClockSelection = __HAL_RCC_GET_USB_SOURCE();
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+}
+
+/**
+ * @brief Returns the peripheral clock frequency
+ * @note Returns 0 if peripheral clock is unknown
+ * @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 STM32F103xE
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ @endif
+ @if STM32F103xG
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ @endif
+ @if STM32F105xC
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ @if STM32F107xC
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ @if STM32F102xx
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ @if STM32F103xx
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ * @retval Frequency in Hz (0: means that no available frequency for the peripheral)
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ const uint8_t aPLLMULFactorTable[14] = {0, 0, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 13};
+ const uint8_t aPredivFactorTable[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+
+ uint32_t prediv1 = 0U, pllclk = 0U, pllmul = 0U;
+ uint32_t pll2mul = 0U, pll3mul = 0U, prediv2 = 0U;
+#endif /* STM32F105xC || STM32F107xC */
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6) || \
+ defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)
+ const uint8_t aPLLMULFactorTable[16] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16};
+ const uint8_t aPredivFactorTable[2] = {1, 2};
+
+ uint32_t prediv1 = 0U, pllclk = 0U, pllmul = 0U;
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG */
+ uint32_t temp_reg = 0U, frequency = 0U;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClk));
+
+ switch (PeriphClk)
+ {
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+ case RCC_PERIPHCLK_USB:
+ {
+ /* Get RCC configuration ------------------------------------------------------*/
+ temp_reg = RCC->CFGR;
+
+ /* Check if PLL is enabled */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLLON))
+ {
+ pllmul = aPLLMULFactorTable[(uint32_t)(temp_reg & RCC_CFGR_PLLMULL) >> RCC_CFGR_PLLMULL_Pos];
+ if ((temp_reg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+ {
+#if defined(STM32F105xC) || defined(STM32F107xC) || defined(STM32F100xB)\
+ || defined(STM32F100xE)
+ prediv1 = aPredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV1) >> RCC_CFGR2_PREDIV1_Pos];
+#else
+ prediv1 = aPredivFactorTable[(uint32_t)(RCC->CFGR & RCC_CFGR_PLLXTPRE) >> RCC_CFGR_PLLXTPRE_Pos];
+#endif /* STM32F105xC || STM32F107xC || STM32F100xB || STM32F100xE */
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ if (HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC))
+ {
+ /* PLL2 selected as Prediv1 source */
+ /* PLLCLK = PLL2CLK / PREDIV1 * PLLMUL with PLL2CLK = HSE/PREDIV2 * PLL2MUL */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll2mul = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> RCC_CFGR2_PLL2MUL_Pos) + 2;
+ pllclk = (uint32_t)((((HSE_VALUE / prediv2) * pll2mul) / prediv1) * pllmul);
+ }
+ else
+ {
+ /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+ pllclk = (uint32_t)((HSE_VALUE / prediv1) * pllmul);
+ }
+
+ /* If PLLMUL was set to 13 means that it was to cover the case PLLMUL 6.5 (avoid using float) */
+ /* In this case need to divide pllclk by 2 */
+ if (pllmul == aPLLMULFactorTable[(uint32_t)(RCC_CFGR_PLLMULL6_5) >> RCC_CFGR_PLLMULL_Pos])
+ {
+ pllclk = pllclk / 2;
+ }
+#else
+ if ((temp_reg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+ {
+ /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+ pllclk = (uint32_t)((HSE_VALUE / prediv1) * pllmul);
+ }
+#endif /* STM32F105xC || STM32F107xC */
+ }
+ else
+ {
+ /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */
+ pllclk = (uint32_t)((HSI_VALUE >> 1) * pllmul);
+ }
+
+ /* Calcul of the USB frequency*/
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ /* USBCLK = PLLVCO = (2 x PLLCLK) / USB prescaler */
+ if (__HAL_RCC_GET_USB_SOURCE() == RCC_USBCLKSOURCE_PLL_DIV2)
+ {
+ /* Prescaler of 2 selected for USB */
+ frequency = pllclk;
+ }
+ else
+ {
+ /* Prescaler of 3 selected for USB */
+ frequency = (2 * pllclk) / 3;
+ }
+#else
+ /* USBCLK = PLLCLK / USB prescaler */
+ if (__HAL_RCC_GET_USB_SOURCE() == RCC_USBCLKSOURCE_PLL)
+ {
+ /* No prescaler selected for USB */
+ frequency = pllclk;
+ }
+ else
+ {
+ /* Prescaler of 1.5 selected for USB */
+ frequency = (pllclk * 2) / 3;
+ }
+#endif
+ }
+ break;
+ }
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+#if defined(STM32F103xE) || defined(STM32F103xG) || defined(STM32F105xC) || defined(STM32F107xC)
+ case RCC_PERIPHCLK_I2S2:
+ {
+#if defined(STM32F103xE) || defined(STM32F103xG)
+ /* SYSCLK used as source clock for I2S2 */
+ frequency = HAL_RCC_GetSysClockFreq();
+#else
+ if (__HAL_RCC_GET_I2S2_SOURCE() == RCC_I2S2CLKSOURCE_SYSCLK)
+ {
+ /* SYSCLK used as source clock for I2S2 */
+ frequency = HAL_RCC_GetSysClockFreq();
+ }
+ else
+ {
+ /* Check if PLLI2S is enabled */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON))
+ {
+ /* PLLI2SVCO = 2 * PLLI2SCLK = 2 * (HSE/PREDIV2 * PLL3MUL) */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll3mul = ((RCC->CFGR2 & RCC_CFGR2_PLL3MUL) >> RCC_CFGR2_PLL3MUL_Pos) + 2;
+ frequency = (uint32_t)(2 * ((HSE_VALUE / prediv2) * pll3mul));
+ }
+ }
+#endif /* STM32F103xE || STM32F103xG */
+ break;
+ }
+ case RCC_PERIPHCLK_I2S3:
+ {
+#if defined(STM32F103xE) || defined(STM32F103xG)
+ /* SYSCLK used as source clock for I2S3 */
+ frequency = HAL_RCC_GetSysClockFreq();
+#else
+ if (__HAL_RCC_GET_I2S3_SOURCE() == RCC_I2S3CLKSOURCE_SYSCLK)
+ {
+ /* SYSCLK used as source clock for I2S3 */
+ frequency = HAL_RCC_GetSysClockFreq();
+ }
+ else
+ {
+ /* Check if PLLI2S is enabled */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON))
+ {
+ /* PLLI2SVCO = 2 * PLLI2SCLK = 2 * (HSE/PREDIV2 * PLL3MUL) */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll3mul = ((RCC->CFGR2 & RCC_CFGR2_PLL3MUL) >> RCC_CFGR2_PLL3MUL_Pos) + 2;
+ frequency = (uint32_t)(2 * ((HSE_VALUE / prediv2) * pll3mul));
+ }
+ }
+#endif /* STM32F103xE || STM32F103xG */
+ break;
+ }
+#endif /* STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+ case RCC_PERIPHCLK_RTC:
+ {
+ /* Get RCC BDCR configuration ------------------------------------------------------*/
+ temp_reg = RCC->BDCR;
+
+ /* Check if LSE is ready if RTC clock selection is LSE */
+ if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_LSE) && (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSERDY)))
+ {
+ frequency = LSE_VALUE;
+ }
+ /* Check if LSI is ready if RTC clock selection is LSI */
+ else if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY)))
+ {
+ frequency = LSI_VALUE;
+ }
+ else if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_HSE_DIV128) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSERDY)))
+ {
+ frequency = HSE_VALUE / 128U;
+ }
+ /* Clock not enabled for RTC*/
+ else
+ {
+ /* nothing to do: frequency already initialized to 0U */
+ }
+ break;
+ }
+ case RCC_PERIPHCLK_ADC:
+ {
+ frequency = HAL_RCC_GetPCLK2Freq() / (((__HAL_RCC_GET_ADC_SOURCE() >> RCC_CFGR_ADCPRE_Pos) + 1) * 2);
+ break;
+ }
+ default:
+ {
+ break;
+ }
+ }
+ return (frequency);
+}
+
+/**
+ * @}
+ */
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+/** @defgroup RCCEx_Exported_Functions_Group2 PLLI2S Management function
+ * @brief PLLI2S Management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Extended PLLI2S Management functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the PLLI2S
+ activation or deactivation
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enable PLLI2S
+ * @param PLLI2SInit pointer to an RCC_PLLI2SInitTypeDef structure that
+ * contains the configuration information for the PLLI2S
+ * @note The PLLI2S configuration not modified if used by I2S2 or I2S3 Interface.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLLI2S(RCC_PLLI2SInitTypeDef *PLLI2SInit)
+{
+ uint32_t tickstart = 0U;
+
+ /* Check that PLL I2S has not been already enabled by I2S2 or I2S3*/
+ if (HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S2SRC) && HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLLI2S_MUL(PLLI2SInit->PLLI2SMUL));
+ assert_param(IS_RCC_HSE_PREDIV2(PLLI2SInit->HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLL2 is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL2ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != PLLI2SInit->HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Disable the main PLLI2S. */
+ __HAL_RCC_PLLI2S_DISABLE();
+
+ /* 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 HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(PLLI2SInit->HSEPrediv2Value);
+
+
+ /* Configure the main PLLI2S multiplication factors. */
+ __HAL_RCC_PLLI2S_CONFIG(PLLI2SInit->PLLI2SMUL);
+
+ /* Enable the main 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 HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* PLLI2S cannot be modified as already used by I2S2 or I2S3 */
+ return HAL_ERROR;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Disable PLLI2S
+ * @note PLLI2S is not disabled if used by I2S2 or I2S3 Interface.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLLI2S(void)
+{
+ uint32_t tickstart = 0U;
+
+ /* Disable PLL I2S as not requested by I2S2 or I2S3*/
+ if (HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S2SRC) && HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+ {
+ /* Disable the main PLLI2S. */
+ __HAL_RCC_PLLI2S_DISABLE();
+
+ /* 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 HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* PLLI2S is currently used by I2S2 or I2S3. Cannot be disabled.*/
+ return HAL_ERROR;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup RCCEx_Exported_Functions_Group3 PLL2 Management function
+ * @brief PLL2 Management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Extended PLL2 Management functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the PLL2
+ activation or deactivation
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enable PLL2
+ * @param PLL2Init pointer to an RCC_PLL2InitTypeDef structure that
+ * contains the configuration information for the PLL2
+ * @note The PLL2 configuration not modified if used indirectly as system clock.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLL2(RCC_PLL2InitTypeDef *PLL2Init)
+{
+ uint32_t tickstart = 0U;
+
+ /* This bit can not be cleared if the PLL2 clock is used indirectly as system
+ clock (i.e. it is used as PLL clock entry that is used as system clock). */
+ if ((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \
+ (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \
+ ((READ_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2))
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLL2_MUL(PLL2Init->PLL2MUL));
+ assert_param(IS_RCC_HSE_PREDIV2(PLL2Init->HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLLI2S is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != PLL2Init->HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Disable the main PLL2. */
+ __HAL_RCC_PLL2_DISABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(PLL2Init->HSEPrediv2Value);
+
+ /* Configure the main PLL2 multiplication factors. */
+ __HAL_RCC_PLL2_CONFIG(PLL2Init->PLL2MUL);
+
+ /* Enable the main PLL2. */
+ __HAL_RCC_PLL2_ENABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Disable PLL2
+ * @note PLL2 is not disabled if used indirectly as system clock.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLL2(void)
+{
+ uint32_t tickstart = 0U;
+
+ /* This bit can not be cleared if the PLL2 clock is used indirectly as system
+ clock (i.e. it is used as PLL clock entry that is used as system clock). */
+ if ((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \
+ (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \
+ ((READ_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2))
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Disable the main PLL2. */
+ __HAL_RCC_PLL2_DISABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+#endif /* STM32F105xC || STM32F107xC */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--
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