/**
******************************************************************************
* @file stm32f3xx_hal_rcc_ex.c
* @author MCD Application Team
* @version V1.1.0
* @date 12-Sept-2014
* @brief Extended RCC HAL module driver
* This file provides firmware functions to manage the following
* functionalities RCC Extended peripheral:
* + Extended Clock Source configuration functions
*
******************************************************************************
* @attention
*
*
© COPYRIGHT(c) 2014 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f3xx_hal.h"
/** @addtogroup STM32F3xx_HAL_Driver
* @{
*/
/** @defgroup RCCEx RCC Extended HAL module driver
* @brief RCC Extended HAL module driver.
* @{
*/
#ifdef HAL_RCC_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @defgroup RCCEx_Private_Define RCC Extended Private Define
* @{
*/
#define HSE_TIMEOUT_VALUE HSE_STARTUP_TIMEOUT
#define HSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */
#define LSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */
#define PLL_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */
#define CLOCKSWITCH_TIMEOUT_VALUE ((uint32_t)5000) /* 5 s */
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/** @defgroup RCCEx_Private_Variables RCC Extented Private Variables
* @{
*/
const uint8_t PLLMULFactorTable[16] = { 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 16};
const uint8_t PredivFactorTable[16] = { 1, 2, 3, 4, 5, 6, 7, 8,
9,10, 11, 12, 13, 14, 15, 16};
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions ---------------------------------------------------------*/
/** @defgroup RCCEx_Exported_Functions RCC Extended Exported Functions
* @{
*/
/** @defgroup RCCEx_Exported_Functions_Group1 Extended Peripheral Control functions
* @brief Extended Peripheral Control functions
*
@verbatim
===============================================================================
##### Extended Peripheral Control functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to control the RCC Clocks
frequencies.
[..]
(@) Important note: Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to
select the RTC clock source; in this case the Backup domain will be reset in
order to modify the RTC Clock source, as consequence RTC registers (including
the backup registers) and RCC_BDCR register are set to their reset values.
@endverbatim
* @{
*/
/**
* @brief Initializes the RCC extended peripherals clocks according to the specified
* parameters in the RCC_PeriphCLKInitTypeDef.
* @param PeriphClkInit: pointer to an RCC_PeriphCLKInitTypeDef structure that
* contains the configuration information for the Extended Peripherals clocks
* (ADC, CEC, I2C, I2S, SDADC, HRTIM, TIM, USART, RTC and USB).
*
* @note Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select
* the RTC clock source; in this case the Backup domain will be reset in
* order to modify the RTC Clock source, as consequence RTC registers (including
* the backup registers) and RCC_BDCR register are set to their reset values.
*
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
{
uint32_t tickstart = 0;
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_RCC_PERIPHCLK(PeriphClkInit->PeriphClockSelection));
/*---------------------------- RTC configuration -------------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == (RCC_PERIPHCLK_RTC))
{
/* Enable Power Clock*/
__PWR_CLK_ENABLE();
/* Enable write access to Backup domain */
SET_BIT(PWR->CR, PWR_CR_DBP);
/* Wait for Backup domain Write protection disable */
tickstart = HAL_GetTick();
while((PWR->CR & PWR_CR_DBP) == RESET)
{
if((HAL_GetTick()-tickstart) > DBP_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Reset the Backup domain only if the RTC Clock source selction is modified */
if((RCC->BDCR & RCC_BDCR_RTCSEL) != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL))
{
/* Store the content of BDCR register before the reset of Backup Domain */
tmpreg = (RCC->BDCR & ~(RCC_BDCR_RTCSEL));
/* RTC Clock selection can be changed only if the Backup Domain is reset */
__HAL_RCC_BACKUPRESET_FORCE();
__HAL_RCC_BACKUPRESET_RELEASE();
/* Restore the Content of BDCR register */
RCC->BDCR = tmpreg;
}
/* If LSE is selected as RTC clock source, wait for LSE reactivation */
if(PeriphClkInit->RTCClockSelection == RCC_RTCCLKSOURCE_LSE)
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till LSE is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET)
{
if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
__HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
}
/*------------------------------- USART1 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART1) == RCC_PERIPHCLK_USART1)
{
/* Check the parameters */
assert_param(IS_RCC_USART1CLKSOURCE(PeriphClkInit->Usart1ClockSelection));
/* Configure the USART1 clock source */
__HAL_RCC_USART1_CONFIG(PeriphClkInit->Usart1ClockSelection);
}
/*----------------------------- USART2 Configuration --------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART2) == RCC_PERIPHCLK_USART2)
{
/* Check the parameters */
assert_param(IS_RCC_USART2CLKSOURCE(PeriphClkInit->Usart2ClockSelection));
/* Configure the USART2 clock source */
__HAL_RCC_USART2_CONFIG(PeriphClkInit->Usart2ClockSelection);
}
/*------------------------------ USART3 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART3) == RCC_PERIPHCLK_USART3)
{
/* Check the parameters */
assert_param(IS_RCC_USART3CLKSOURCE(PeriphClkInit->Usart3ClockSelection));
/* Configure the USART3 clock source */
__HAL_RCC_USART3_CONFIG(PeriphClkInit->Usart3ClockSelection);
}
/*------------------------------ I2C1 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C1) == RCC_PERIPHCLK_I2C1)
{
/* Check the parameters */
assert_param(IS_RCC_I2C1CLKSOURCE(PeriphClkInit->I2c1ClockSelection));
/* Configure the I2C1 clock source */
__HAL_RCC_I2C1_CONFIG(PeriphClkInit->I2c1ClockSelection);
}
#if defined(STM32F302xE) || defined(STM32F303xE) || \
defined(STM32F302xC) || defined(STM32F303xC) || \
defined(STM32F302x8) || \
defined(STM32F373xC)
/*------------------------------ USB Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == RCC_PERIPHCLK_USB)
{
/* Check the parameters */
assert_param(IS_RCC_USBCLKSOURCE(PeriphClkInit->USBClockSelection));
/* Configure the USB clock source */
__HAL_RCC_USB_CONFIG(PeriphClkInit->USBClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || */
/* STM32F302xC || STM32F303xC || */
/* STM32F302x8 || */
/* STM32F373xC */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
/*------------------------------ I2C2 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C2) == RCC_PERIPHCLK_I2C2)
{
/* Check the parameters */
assert_param(IS_RCC_I2C2CLKSOURCE(PeriphClkInit->I2c2ClockSelection));
/* Configure the I2C2 clock source */
__HAL_RCC_I2C2_CONFIG(PeriphClkInit->I2c2ClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx || */
/* STM32F373xC || STM32F378xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
/*------------------------------ I2C3 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C3) == RCC_PERIPHCLK_I2C3)
{
/* Check the parameters */
assert_param(IS_RCC_I2C3CLKSOURCE(PeriphClkInit->I2c3ClockSelection));
/* Configure the I2C3 clock source */
__HAL_RCC_I2C3_CONFIG(PeriphClkInit->I2c3ClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx)
/*------------------------------ UART4 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_UART4) == RCC_PERIPHCLK_UART4)
{
/* Check the parameters */
assert_param(IS_RCC_UART4CLKSOURCE(PeriphClkInit->Uart4ClockSelection));
/* Configure the UART4 clock source */
__HAL_RCC_UART4_CONFIG(PeriphClkInit->Uart4ClockSelection);
}
/*------------------------------ UART5 Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_UART5) == RCC_PERIPHCLK_UART5)
{
/* Check the parameters */
assert_param(IS_RCC_UART5CLKSOURCE(PeriphClkInit->Uart5ClockSelection));
/* Configure the UART5 clock source */
__HAL_RCC_UART5_CONFIG(PeriphClkInit->Uart5ClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
/*------------------------------ I2S Configuration ------------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S) == RCC_PERIPHCLK_I2S)
{
/* Check the parameters */
assert_param(IS_RCC_I2SCLKSOURCE(PeriphClkInit->I2sClockSelection));
/* Configure the I2S clock source */
__HAL_RCC_I2S_CONFIG(PeriphClkInit->I2sClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
/*------------------------------ ADC1 clock Configuration ------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC1) == RCC_PERIPHCLK_ADC1)
{
/* Check the parameters */
assert_param(IS_RCC_ADC1PLLCLK_DIV(PeriphClkInit->Adc1ClockSelection));
/* Configure the ADC1 clock source */
__HAL_RCC_ADC1_CONFIG(PeriphClkInit->Adc1ClockSelection);
}
#endif /* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx)
/*------------------------------ ADC1 & ADC2 clock Configuration -------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC12) == RCC_PERIPHCLK_ADC12)
{
/* Check the parameters */
assert_param(IS_RCC_ADC12PLLCLK_DIV(PeriphClkInit->Adc12ClockSelection));
/* Configure the ADC12 clock source */
__HAL_RCC_ADC12_CONFIG(PeriphClkInit->Adc12ClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx */
#if defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F303xC) || defined(STM32F358xx)
/*------------------------------ ADC3 & ADC4 clock Configuration -------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC34) == RCC_PERIPHCLK_ADC34)
{
/* Check the parameters */
assert_param(IS_RCC_ADC34PLLCLK_DIV(PeriphClkInit->Adc34ClockSelection));
/* Configure the ADC34 clock source */
__HAL_RCC_ADC34_CONFIG(PeriphClkInit->Adc34ClockSelection);
}
#endif /* STM32F303xE || STM32F398xx || */
/* STM32F303xC || STM32F358xx */
#if defined(STM32F373xC) || defined(STM32F378xx)
/*------------------------------ ADC1 clock Configuration ------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC1) == RCC_PERIPHCLK_ADC1)
{
/* Check the parameters */
assert_param(IS_RCC_ADC1PCLK2_DIV(PeriphClkInit->Adc1ClockSelection));
/* Configure the ADC1 clock source */
__HAL_RCC_ADC1_CONFIG(PeriphClkInit->Adc1ClockSelection);
}
#endif /* STM32F373xC || STM32F378xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
/*------------------------------ TIM1 clock Configuration ----------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM1) == RCC_PERIPHCLK_TIM1)
{
/* Check the parameters */
assert_param(IS_RCC_TIM1CLKSOURCE(PeriphClkInit->Tim1ClockSelection));
/* Configure the TIM1 clock source */
__HAL_RCC_TIM1_CONFIG(PeriphClkInit->Tim1ClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F303xC) || defined(STM32F358xx)
/*------------------------------ TIM8 clock Configuration ----------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM8) == RCC_PERIPHCLK_TIM8)
{
/* Check the parameters */
assert_param(IS_RCC_TIM8CLKSOURCE(PeriphClkInit->Tim8ClockSelection));
/* Configure the TIM8 clock source */
__HAL_RCC_TIM8_CONFIG(PeriphClkInit->Tim8ClockSelection);
}
#endif /* STM32F303xE || STM32F398xx || */
/* STM32F303xC || STM32F358xx */
#if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
/*------------------------------ TIM15 clock Configuration ----------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM15) == RCC_PERIPHCLK_TIM15)
{
/* Check the parameters */
assert_param(IS_RCC_TIM15CLKSOURCE(PeriphClkInit->Tim15ClockSelection));
/* Configure the TIM15 clock source */
__HAL_RCC_TIM15_CONFIG(PeriphClkInit->Tim15ClockSelection);
}
/*------------------------------ TIM16 clock Configuration ----------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM16) == RCC_PERIPHCLK_TIM16)
{
/* Check the parameters */
assert_param(IS_RCC_TIM16CLKSOURCE(PeriphClkInit->Tim16ClockSelection));
/* Configure the TIM16 clock source */
__HAL_RCC_TIM16_CONFIG(PeriphClkInit->Tim16ClockSelection);
}
/*------------------------------ TIM17 clock Configuration ----------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM17) == RCC_PERIPHCLK_TIM17)
{
/* Check the parameters */
assert_param(IS_RCC_TIM17CLKSOURCE(PeriphClkInit->Tim17ClockSelection));
/* Configure the TIM17 clock source */
__HAL_RCC_TIM17_CONFIG(PeriphClkInit->Tim17ClockSelection);
}
#endif /* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F334x8)
/*------------------------------ HRTIM1 clock Configuration ----------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_HRTIM1) == RCC_PERIPHCLK_HRTIM1)
{
/* Check the parameters */
assert_param(IS_RCC_HRTIM1CLKSOURCE(PeriphClkInit->Hrtim1ClockSelection));
/* Configure the HRTIM1 clock source */
__HAL_RCC_HRTIM1_CONFIG(PeriphClkInit->Hrtim1ClockSelection);
}
#endif /* STM32F334x8 */
#if defined(STM32F373xC) || defined(STM32F378xx)
/*------------------------------ SDADC clock Configuration -------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_SDADC) == RCC_PERIPHCLK_SDADC)
{
/* Check the parameters */
assert_param(IS_RCC_SDADCSYSCLK_DIV(PeriphClkInit->SdadcClockSelection));
/* Configure the SDADC clock prescaler */
__HAL_RCC_SDADC_CONFIG(PeriphClkInit->SdadcClockSelection);
}
/*------------------------------ CEC clock Configuration -------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CEC) == RCC_PERIPHCLK_CEC)
{
/* Check the parameters */
assert_param(IS_RCC_CECCLKSOURCE(PeriphClkInit->CecClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_CEC_CONFIG(PeriphClkInit->CecClockSelection);
}
#endif /* STM32F373xC || STM32F378xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx)
/*------------------------------ TIM2 clock Configuration -------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM2) == RCC_PERIPHCLK_TIM2)
{
/* Check the parameters */
assert_param(IS_RCC_TIM2CLKSOURCE(PeriphClkInit->Tim2ClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_TIM2_CONFIG(PeriphClkInit->Tim2ClockSelection);
}
/*------------------------------ TIM3 clock Configuration -------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM34) == RCC_PERIPHCLK_TIM34)
{
/* Check the parameters */
assert_param(IS_RCC_TIM3CLKSOURCE(PeriphClkInit->Tim34ClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_TIM34_CONFIG(PeriphClkInit->Tim34ClockSelection);
}
/*------------------------------ TIM15 clock Configuration ------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM15) == RCC_PERIPHCLK_TIM15)
{
/* Check the parameters */
assert_param(IS_RCC_TIM15CLKSOURCE(PeriphClkInit->Tim15ClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_TIM15_CONFIG(PeriphClkInit->Tim15ClockSelection);
}
/*------------------------------ TIM16 clock Configuration ------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM16) == RCC_PERIPHCLK_TIM16)
{
/* Check the parameters */
assert_param(IS_RCC_TIM16CLKSOURCE(PeriphClkInit->Tim16ClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_TIM16_CONFIG(PeriphClkInit->Tim16ClockSelection);
}
/*------------------------------ TIM17 clock Configuration ------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM17) == RCC_PERIPHCLK_TIM17)
{
/* Check the parameters */
assert_param(IS_RCC_TIM17CLKSOURCE(PeriphClkInit->Tim17ClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_TIM17_CONFIG(PeriphClkInit->Tim17ClockSelection);
}
#endif /* STM32F302xE || STM32F303xE || STM32F398xx */
#if defined(STM32F303xE) || defined(STM32F398xx)
/*------------------------------ TIM20 clock Configuration ------------------*/
if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_TIM20) == RCC_PERIPHCLK_TIM20)
{
/* Check the parameters */
assert_param(IS_RCC_TIM20CLKSOURCE(PeriphClkInit->Tim20ClockSelection));
/* Configure the CEC clock source */
__HAL_RCC_TIM20_CONFIG(PeriphClkInit->Tim20ClockSelection);
}
#endif /* STM32F303xE || STM32F398xx */
return HAL_OK;
}
/**
* @brief Get the RCC_ClkInitStruct according to the internal
* RCC configuration registers.
* @param PeriphClkInit: pointer to an RCC_PeriphCLKInitTypeDef structure that
* returns the configuration information for the Extended Peripherals clocks
* (ADC, CEC, I2C, I2S, SDADC, HRTIM, TIM, USART, RTC and USB clocks).
* @retval None
*/
void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
{
/* Set all possible values for the extended clock type parameter------------*/
/* Common part first */
PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_USART3 | \
RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_RTC;
/* Get the RTC configuration --------------------------------------------*/
PeriphClkInit->RTCClockSelection = __HAL_RCC_GET_RTC_SOURCE();
/* Get the USART1 clock configuration --------------------------------------------*/
PeriphClkInit->Usart1ClockSelection = __HAL_RCC_GET_USART1_SOURCE();
/* Get the USART2 clock configuration -----------------------------------------*/
PeriphClkInit->Usart2ClockSelection = __HAL_RCC_GET_USART2_SOURCE();
/* Get the USART3 clock configuration -----------------------------------------*/
PeriphClkInit->Usart3ClockSelection = __HAL_RCC_GET_USART3_SOURCE();
/* Get the I2C1 clock configuration -----------------------------------------*/
PeriphClkInit->I2c1ClockSelection = __HAL_RCC_GET_I2C1_SOURCE();
#if defined(STM32F302xE) || defined(STM32F303xE) || \
defined(STM32F302xC) || defined(STM32F303xC) || \
defined(STM32F302x8) || \
defined(STM32F373xC)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USB;
/* Get the USB clock configuration -----------------------------------------*/
PeriphClkInit->USBClockSelection = __HAL_RCC_GET_USB_SOURCE();
#endif /* STM32F302xE || STM32F303xE || */
/* STM32F302xC || STM32F303xC || */
/* STM32F302x8 || */
/* STM32F373xC */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2C2;
/* Get the I2C2 clock configuration -----------------------------------------*/
PeriphClkInit->I2c2ClockSelection = __HAL_RCC_GET_I2C2_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx || */
/* STM32F373xC || STM32F378xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2C3;
/* Get the I2C3 clock configuration -----------------------------------------*/
PeriphClkInit->I2c3ClockSelection = __HAL_RCC_GET_I2C3_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) ||defined(STM32F358xx)
PeriphClkInit->PeriphClockSelection |= (RCC_PERIPHCLK_UART4 | RCC_PERIPHCLK_UART5);
/* Get the UART4 clock configuration -----------------------------------------*/
PeriphClkInit->Uart4ClockSelection = __HAL_RCC_GET_UART4_SOURCE();
/* Get the UART5 clock configuration -----------------------------------------*/
PeriphClkInit->Uart5ClockSelection = __HAL_RCC_GET_UART5_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S;
/* Get the I2S clock configuration -----------------------------------------*/
PeriphClkInit->I2sClockSelection = __HAL_RCC_GET_I2S_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx || */
#if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC1;
/* Get the ADC1 clock configuration -----------------------------------------*/
PeriphClkInit->Adc1ClockSelection = __HAL_RCC_GET_ADC1_SOURCE();
#endif /* STM32F301x8 || STM32F302x8 || STM32F318xx || */
/* STM32F373xC || STM32F378xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC12;
/* Get the ADC1 & ADC2 clock configuration -----------------------------------------*/
PeriphClkInit->Adc12ClockSelection = __HAL_RCC_GET_ADC12_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx */
#if defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F303xC) || defined(STM32F358xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC34;
/* Get the ADC3 & ADC4 clock configuration -----------------------------------------*/
PeriphClkInit->Adc34ClockSelection = __HAL_RCC_GET_ADC34_SOURCE();
#endif /* STM32F303xE || STM32F398xx || */
/* STM32F303xC || STM32F358xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM1;
/* Get the TIM1 clock configuration -----------------------------------------*/
PeriphClkInit->Tim1ClockSelection = __HAL_RCC_GET_TIM1_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx || */
/* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F303xE) || defined(STM32F398xx) || \
defined(STM32F303xC) || defined(STM32F358xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM8;
/* Get the TIM8 clock configuration -----------------------------------------*/
PeriphClkInit->Tim8ClockSelection = __HAL_RCC_GET_TIM8_SOURCE();
#endif /* STM32F303xE || STM32F398xx || */
/* STM32F303xC || STM32F358xx */
#if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
PeriphClkInit->PeriphClockSelection |= (RCC_PERIPHCLK_TIM15 | RCC_PERIPHCLK_TIM16 | RCC_PERIPHCLK_TIM17);
/* Get the TIM15 clock configuration -----------------------------------------*/
PeriphClkInit->Tim15ClockSelection = __HAL_RCC_GET_TIM15_SOURCE();
/* Get the TIM16 clock configuration -----------------------------------------*/
PeriphClkInit->Tim16ClockSelection = __HAL_RCC_GET_TIM16_SOURCE();
/* Get the TIM17 clock configuration -----------------------------------------*/
PeriphClkInit->Tim17ClockSelection = __HAL_RCC_GET_TIM17_SOURCE();
#endif /* STM32F301x8 || STM32F302x8 || STM32F318xx */
#if defined(STM32F334x8)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_HRTIM1;
/* Get the HRTIM1 clock configuration -----------------------------------------*/
PeriphClkInit->Hrtim1ClockSelection = __HAL_RCC_GET_HRTIM1_SOURCE();
#endif /* STM32F334x8 */
#if defined(STM32F373xC) || defined(STM32F378xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_SDADC;
/* Get the SDADC clock configuration -----------------------------------------*/
PeriphClkInit->SdadcClockSelection = __HAL_RCC_GET_SDADC_SOURCE();
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_CEC;
/* Get the CEC clock configuration -----------------------------------------*/
PeriphClkInit->CecClockSelection = __HAL_RCC_GET_CEC_SOURCE();
#endif /* STM32F373xC || STM32F378xx */
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM2;
/* Get the TIM2 clock configuration -----------------------------------------*/
PeriphClkInit->Tim2ClockSelection = __HAL_RCC_GET_TIM2_SOURCE();
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM34;
/* Get the TIM3 clock configuration -----------------------------------------*/
PeriphClkInit->Tim34ClockSelection = __HAL_RCC_GET_TIM34_SOURCE();
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM15;
/* Get the TIM15 clock configuration -----------------------------------------*/
PeriphClkInit->Tim15ClockSelection = __HAL_RCC_GET_TIM15_SOURCE();
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM16;
/* Get the TIM16 clock configuration -----------------------------------------*/
PeriphClkInit->Tim16ClockSelection = __HAL_RCC_GET_TIM16_SOURCE();
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM17;
/* Get the TIM17 clock configuration -----------------------------------------*/
PeriphClkInit->Tim17ClockSelection = __HAL_RCC_GET_TIM17_SOURCE();
#endif /* STM32F302xE || STM32F303xE || STM32F398xx */
#if defined (STM32F303xE) || defined(STM32F398xx)
PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_TIM20;
/* Get the TIM20 clock configuration -----------------------------------------*/
PeriphClkInit->Tim20ClockSelection = __HAL_RCC_GET_TIM20_SOURCE();
#endif /* STM32F303xE || STM32F398xx */
}
/**
* @brief Initializes the RCC Oscillators according to the specified parameters in the
* RCC_OscInitTypeDef.
* @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that
* contains the configuration information for the RCC Oscillators.
* @note The PLL is not disabled when used as system clock.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct)
{
uint32_t tickstart = 0;
/* Check the parameters */
assert_param(RCC_OscInitStruct != HAL_NULL);
assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType));
/*------------------------------- HSE Configuration ------------------------*/
if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE)
{
/* Check the parameters */
assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState));
/* When the HSE is used as system clock or clock source for PLL in these cases HSE will not disabled */
if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSE) ||
((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE)))
{
if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState != RCC_HSE_ON))
{
return HAL_ERROR;
}
}
else
{
/* Reset HSEON and HSEBYP bits before configuring the HSE --------------*/
__HAL_RCC_HSE_CONFIG(RCC_HSE_OFF);
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till HSE is bypassed or disabled */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET)
{
if((HAL_GetTick()-tickstart) > HSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Set the new HSE configuration ---------------------------------------*/
__HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState);
#if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
/* Configure the HSE predivision factor --------------------------------*/
__HAL_RCC_HSE_PREDIV_CONFIG(RCC_OscInitStruct->HSEPredivValue);
#endif /* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
/* STM32F373xC || STM32F378xx */
/* Check the HSE State */
if(RCC_OscInitStruct->HSEState == RCC_HSE_ON)
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till HSE is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET)
{
if((HAL_GetTick()-tickstart) > HSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
else
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till HSE is bypassed or disabled */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET)
{
if((HAL_GetTick()-tickstart) > HSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
}
}
/*----------------------------- HSI Configuration --------------------------*/
if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI)
{
/* Check the parameters */
assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState));
assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue));
/* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */
if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSI) ||
((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSI)))
{
/* When the HSI is used as system clock it is not allowed to be disabled */
if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON))
{
return HAL_ERROR;
}
/* Otherwise, just the calibration is allowed */
else
{
/* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
__HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
}
}
else
{
/* Check the HSI State */
if(RCC_OscInitStruct->HSIState != RCC_HSI_OFF)
{
/* Enable the Internal High Speed oscillator (HSI). */
__HAL_RCC_HSI_ENABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till HSI is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET)
{
if((HAL_GetTick()-tickstart) > HSI_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
__HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
}
else
{
/* Disable the Internal High Speed oscillator (HSI). */
__HAL_RCC_HSI_DISABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till HSI is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET)
{
if((HAL_GetTick()-tickstart) > HSI_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
}
}
/*------------------------------ LSI Configuration -------------------------*/
if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI)
{
/* Check the parameters */
assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState));
/* Check the LSI State */
if(RCC_OscInitStruct->LSIState != RCC_LSI_OFF)
{
/* Enable the Internal Low Speed oscillator (LSI). */
__HAL_RCC_LSI_ENABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till LSI is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET)
{
if((HAL_GetTick()-tickstart) > LSI_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
else
{
/* Disable the Internal Low Speed oscillator (LSI). */
__HAL_RCC_LSI_DISABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till LSI is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET)
{
if((HAL_GetTick()-tickstart) > LSI_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
}
/*------------------------------ LSE Configuration -------------------------*/
if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE)
{
/* Check the parameters */
assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState));
/* Enable Power Clock*/
__PWR_CLK_ENABLE();
/* Enable write access to Backup domain */
SET_BIT(PWR->CR, PWR_CR_DBP);
/* Wait for Backup domain Write protection disable */
tickstart = HAL_GetTick();
while((PWR->CR & PWR_CR_DBP) == RESET)
{
if((HAL_GetTick()-tickstart) > DBP_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Reset LSEON and LSEBYP bits before configuring the LSE ----------------*/
__HAL_RCC_LSE_CONFIG(RCC_LSE_OFF);
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till LSE is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET)
{
if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
/* Set the new LSE configuration -----------------------------------------*/
__HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState);
/* Check the LSE State */
if(RCC_OscInitStruct->LSEState == RCC_LSE_ON)
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till LSE is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET)
{
if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
else
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till LSE is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET)
{
if((HAL_GetTick()-tickstart) > LSE_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
}
/*-------------------------------- PLL Configuration -----------------------*/
/* Check the parameters */
assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState));
if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE)
{
/* Check if the PLL is used as system clock or not */
if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK)
{
if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON)
{
/* Check the parameters */
assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource));
assert_param(IS_RCC_PLL_MUL(RCC_OscInitStruct->PLL.PLLMUL));
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx)
assert_param(IS_RCC_PREDIV(RCC_OscInitStruct->PLL.PREDIV));
#endif /* STM32F302xE || STM32F303xE || STM32F398xx */
/* Disable the main PLL. */
__HAL_RCC_PLL_DISABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till PLL is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET)
{
if((HAL_GetTick()-tickstart) > PLL_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
#if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
/* Configure the main PLL clock source and multiplication factor. */
__HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource,
RCC_OscInitStruct->PLL.PLLMUL);
#else
/* Configure the main PLL clock source, predivider and multiplication factor. */
__HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource,
RCC_OscInitStruct->PLL.PREDIV,
RCC_OscInitStruct->PLL.PLLMUL);
#endif /* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
/* STM32F373xC || STM32F378xx */
/* Enable the main PLL. */
__HAL_RCC_PLL_ENABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till PLL is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
{
if((HAL_GetTick()-tickstart) > PLL_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
else
{
/* Disable the main PLL. */
__HAL_RCC_PLL_DISABLE();
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait till PLL is ready */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET)
{
if((HAL_GetTick()-tickstart) > PLL_TIMEOUT_VALUE)
{
return HAL_TIMEOUT;
}
}
}
}
else
{
return HAL_ERROR;
}
}
return HAL_OK;
}
/**
* @brief Configures the RCC_OscInitStruct according to the internal
* RCC configuration registers.
* @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that
* will be configured.
* @retval None
*/
void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct)
{
/* Check the parameters */
assert_param(RCC_OscInitStruct != HAL_NULL);
/* Set all possible values for the Oscillator type parameter ---------------*/
RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI;
/* Get the HSE configuration -----------------------------------------------*/
if((RCC->CR & RCC_CR_HSEBYP) == RCC_CR_HSEBYP)
{
RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS;
}
else if((RCC->CR & RCC_CR_HSEON) == RCC_CR_HSEON)
{
RCC_OscInitStruct->HSEState = RCC_HSE_ON;
}
else
{
RCC_OscInitStruct->HSEState = RCC_HSE_OFF;
}
#if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
RCC_OscInitStruct->HSEPredivValue = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV);
#endif /* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
/* STM32F373xC || STM32F378xx */
/* Get the HSI configuration -----------------------------------------------*/
if((RCC->CR & RCC_CR_HSION) == RCC_CR_HSION)
{
RCC_OscInitStruct->HSIState = RCC_HSI_ON;
}
else
{
RCC_OscInitStruct->HSIState = RCC_HSI_OFF;
}
RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR &RCC_CR_HSITRIM) >> POSITION_VAL(RCC_CR_HSITRIM));
/* Get the LSE configuration -----------------------------------------------*/
if((RCC->BDCR & RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP)
{
RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS;
}
else if((RCC->BDCR & RCC_BDCR_LSEON) == RCC_BDCR_LSEON)
{
RCC_OscInitStruct->LSEState = RCC_LSE_ON;
}
else
{
RCC_OscInitStruct->LSEState = RCC_LSE_OFF;
}
/* Get the LSI configuration -----------------------------------------------*/
if((RCC->CSR & RCC_CSR_LSION) == RCC_CSR_LSION)
{
RCC_OscInitStruct->LSIState = RCC_LSI_ON;
}
else
{
RCC_OscInitStruct->LSIState = RCC_LSI_OFF;
}
/* Get the PLL configuration -----------------------------------------------*/
if((RCC->CR & RCC_CR_PLLON) == RCC_CR_PLLON)
{
RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON;
}
else
{
RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF;
}
RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLSRC);
RCC_OscInitStruct->PLL.PLLMUL = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLMUL);
#if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx)
RCC_OscInitStruct->PLL.PREDIV = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV);
#endif /* STM32F302xE || STM32F303xE || STM32F398xx */
}
/**
* @brief Returns the SYSCLK frequency
* @note The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
* @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(*)
* @note If SYSCLK source is HSE, function returns values based on HSE_VALUE
* divided by PREDIV factor(**)
* @note If SYSCLK source is PLL, function returns values based on HSE_VALUE
* divided by PREDIV factor(**) or HSI_VALUE(*) multiplied by the PLL factor.
* @note (*) HSI_VALUE is a constant defined in stm32f3xx.h file (default value
* 8 MHz).
* @note (**) HSE_VALUE is a constant defined in stm32f3xx.h file (default value
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* @note The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @note This function can be used by the user application to compute the
* baudrate for the communication peripherals or configure other parameters.
*
* @note Each time SYSCLK changes, this function must be called to update the
* right SYSCLK value. Otherwise, any configuration based on this function will be incorrect.
*
* @retval SYSCLK frequency
*/
uint32_t HAL_RCC_GetSysClockFreq(void)
{
uint32_t tmpreg = 0, prediv = 0, pllmul = 0, pllclk = 0;
uint32_t sysclockfreq = 0;
tmpreg = RCC->CFGR;
/* Get SYSCLK source -------------------------------------------------------*/
switch (tmpreg & RCC_CFGR_SWS)
{
case RCC_SYSCLKSOURCE_STATUS_HSE: /* HSE used as system clock source */
sysclockfreq = HSE_VALUE;
break;
case RCC_SYSCLKSOURCE_STATUS_PLLCLK: /* PLL used as system clock source */
pllmul = PLLMULFactorTable[(uint32_t)(tmpreg & RCC_CFGR_PLLMUL) >> POSITION_VAL(RCC_CFGR_PLLMUL)];
prediv = PredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV) >> POSITION_VAL(RCC_CFGR2_PREDIV)];
#if defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \
defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \
defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || \
defined(STM32F373xC) || defined(STM32F378xx)
if ((tmpreg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI)
{
/* HSE used as PLL clock source : PLLCLK = HSE/PREDIV * PLLMUL */
pllclk = (HSE_VALUE/prediv) * pllmul;
}
else
{
/* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */
pllclk = (HSI_VALUE >> 1) * pllmul;
}
#else
if ((tmpreg & RCC_CFGR_PLLSRC_HSE_PREDIV) == RCC_CFGR_PLLSRC_HSE_PREDIV)
{
/* HSE used as PLL clock source : PLLCLK = HSE/PREDIV * PLLMUL */
pllclk = (HSE_VALUE/prediv) * pllmul;
}
else
{
/* HSI used as PLL clock source : PLLCLK = HSI/PREDIV * PLLMUL */
pllclk = (HSI_VALUE/prediv) * pllmul;
}
#endif /* STM32F302xC || STM32F303xC || STM32F358xx || */
/* STM32F303x8 || STM32F334x8 || STM32F328xx || */
/* STM32F301x8 || STM32F302x8 || STM32F318xx */
/* STM32F373xC || STM32F378xx */
sysclockfreq = pllclk;
break;
case RCC_SYSCLKSOURCE_STATUS_HSI: /* HSI used as system clock source */
default:
sysclockfreq = HSI_VALUE;
break;
}
return sysclockfreq;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_RCC_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/