RTEMS 6.1-rc1
Macros | Functions | Variables
stm32h7xx_hal_timebase_rtc_alarm_template.c File Reference

HAL time base based on the hardware RTC_ALARM Template. More...

#include "stm32h7xx_hal.h"

Macros

#define RTC_CLOCK_SOURCE_HSE
 
#define RTC_ASYNCH_PREDIV   99U
 
#define RTC_SYNCH_PREDIV   9U
 
#define RCC_RTCCLKSOURCE_1MHZ   ((uint32_t)((uint32_t)RCC_BDCR_RTCSEL | (uint32_t)((HSE_VALUE/1000000U) << 12U)))
 

Functions

void RTC_Alarm_IRQHandler (void)
 This function handles RTC ALARM interrupt request. More...
 
HAL_StatusTypeDef HAL_InitTick (uint32_t TickPriority)
 This function configures the RTC_ALARMA as a time base source. The time source is configured to have 1ms time base with a dedicated Tick interrupt priority. More...
 
void HAL_SuspendTick (void)
 Suspend Tick increment. More...
 
void HAL_ResumeTick (void)
 Resume Tick increment. More...
 
void HAL_RTC_AlarmAEventCallback (RTC_HandleTypeDef *hrtc)
 ALARM A Event Callback in non blocking mode. More...
 

Variables

 verbatim
 

Detailed Description

HAL time base based on the hardware RTC_ALARM Template.

Author
MCD Application Team
     This file override the native HAL time base functions (defined as weak)
     to use the RTC ALARM for time base generation:
      + Initializes the RTC peripheral to increment the seconds registers each 1ms
      + The alarm is configured to assert an interrupt when the RTC reaches 1ms
      + HAL_IncTick is called at each Alarm event and the time is reset to 00:00:00
      + HSE (default), LSE or LSI can be selected as RTC clock source
Attention

Copyright (c) 2017 STMicroelectronics. All rights reserved.

This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

Function Documentation

◆ HAL_InitTick()

HAL_StatusTypeDef HAL_InitTick ( uint32_t  TickPriority)

This function configures the RTC_ALARMA as a time base source. The time source is configured to have 1ms time base with a dedicated Tick interrupt priority.

Note
This function is called automatically at the beginning of program after reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig().
Parameters
TickPriorityTick interrupt priority.
Return values
HALstatus

◆ RTC_Alarm_IRQHandler()

void RTC_Alarm_IRQHandler ( void  )

This function handles RTC ALARM interrupt request.

Return values
None