/**
* @brief RTC MSP Initialization
* This function configures the hardware resources used in this example
* @param hrtc: RTC handle pointer
*
* @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 None
*/
void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/*##-1- Configure LSE as RTC clock source ###################################*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* Configures the External Low Speed oscillator (LSE) drive capability */
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH);
/*##-2- Enable RTC peripheral Clocks #######################################*/
/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();
}
/**
* @brief RTC MSP Initialization
* This function configures the hardware resources used in this example
* @param hrtc: RTC handle pointer
*
* @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 None
*/
void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/*##-1- Configue LSE/LSI as RTC clock soucre ###############################*/
#ifdef RTC_CLOCK_SOURCE_LSE
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
RCC_OscInitStruct.LSIState = RCC_LSI_OFF;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* Configures the External Low Speed oscillator (LSE) drive capability */
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH);
#elif defined (RTC_CLOCK_SOURCE_LSI)
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.LSEState = RCC_LSE_OFF;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
#else
#error Please select the RTC Clock source inside the main.h file
#endif /*RTC_CLOCK_SOURCE_LSE*/
/*##-2- Enable RTC peripheral Clocks #######################################*/
/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();
/*##-3- Configure the NVIC for RTC TimeStamp ###############################*/
HAL_NVIC_SetPriority(TAMP_STAMP_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(TAMP_STAMP_IRQn);
}
/**
* @brief RTC MSP Initialization
* This function configures the hardware resources used in this example
* @param hrtc RTC handle pointer
*
* @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 None
*/
void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/*##-1- Enables the PWR Clock and Enables access to the backup domain ###################################*/
/* To change the source clock of the RTC feature (LSE, LSI), You have to:
- Enable the power clock using __HAL_RCC_PWR_CLK_ENABLE()
- Enable write access using HAL_PWR_EnableBkUpAccess() function before to
configure the RTC clock source (to be done once after reset).
- Reset the Back up Domain using __HAL_RCC_BACKUPRESET_FORCE() and
__HAL_RCC_BACKUPRESET_RELEASE().
- Configure the needed RTc clock source */
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWR_EnableBkUpAccess();
#ifdef RTC_CLOCK_SOURCE_LSE
/* Note: For STM32F3xx MCU families it is recommended to use the low drive mode configuration
of the LSE JUMPER_POSITION (low drive capability in LSEDRV register) due to the 6pF load capacitance
of the crystal on board*/
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
#endif /* RTC_CLOCK_SOURCE_LSE */
/*##-2- Configure LSE as RTC clock source ###################################*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/*##-3- Enable RTC peripheral Clocks #######################################*/
/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();
}
/**
* @brief RTC MSP Initialization
* This function configures the hardware resources used in this example
* @param hrtc: RTC handle pointer
*
* @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 None
*/
void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/*##-1- Enables the PWR Clock and Enables access to the backup domain ###################################*/
/* To change the source clock of the RTC feature (LSE, LSI), You have to:
- Enable the power clock using __HAL_RCC_PWR_CLK_ENABLE()
- Enable write access using HAL_PWR_EnableBkUpAccess() function before to
configure the RTC clock source (to be done once after reset).
- Reset the Back up Domain using __HAL_RCC_BACKUPRESET_FORCE() and
__HAL_RCC_BACKUPRESET_RELEASE().
- Configure the needed RTC clock source */
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWR_EnableBkUpAccess();
/*##-2- Configue LSE/LSI as RTC clock soucre ###############################*/
#ifdef RTC_CLOCK_SOURCE_LSE
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
RCC_OscInitStruct.LSIState = RCC_LSI_OFF;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* Configures the External Low Speed oscillator (LSE) drive capability */
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH);
#elif defined (RTC_CLOCK_SOURCE_LSI)
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.LSEState = RCC_LSE_OFF;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
#else
#error Please select the RTC Clock source inside the main.h file
#endif /*RTC_CLOCK_SOURCE_LSE*/
/*##-3- Enable RTC peripheral Clocks #######################################*/
/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();
/*##-4- Configure the NVIC for RTC TimeStamp ###############################*/
HAL_NVIC_SetPriority(TAMP_STAMP_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(TAMP_STAMP_IRQn);
}
