AN3371 datasheet(33/45 Pages) STMICROELECTRONICS

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AN3371

RTC firmware driver API

Doc ID 018624 Rev 5

33/45

RTC firmware driver API

This driver provides a set of firmware functions to manage the following functionalities of the

RTC peripheral:

●

Initialization

●

Calendar (Time and Date) configuration

●

Alarm (alarm A and alarm B) configuration

●

Wakeup timer configuration

●

Daylight saving configuration

●

Output pin configuration

●

Digital calibration configuration

●

Synchronization configuration

●

Time-stamp configuration

●

Tamper configuration

●

Backup data register configuration

●

RTC Tamper and Time-stamp pin selection and Output type configuration

●

Interrupts and flag management

For the STM32F2xx family, the RTC driver stm32f2xx_rtc.c/.h can be found in the directory:

STM32F2xx_StdPeriph_Lib_vX.Y.Z\Libraries\STM32F2xx_StdPeriph_Driver.

For the STM32L1xx family, the RTC driver stm32l1xx_rtc.c/.h can be found in the directory:

STM32L1xx_StdPeriph_Lib_vX.Y.Z\Libraries\STM32L1xx_StdPeriph_Driver.

For the STM32F4xx family, the RTC driver stm32f4xx_rtc.c/.h can be found in the directory:

STM32F4xx_StdPeriph_Lib_vX.Y.Z\Libraries\STM32F4xx_StdPeriph_Driver.

For the STM32F0xx family, the RTC driver stm32f0xx_rtc.c/.h can be found in the directory:

STM32F0xx_StdPeriph_Lib_vX.Y.Z\Libraries\STM32F0xx_StdPeriph_Driver.

For the STM32F3xx family, the RTC driver stm32f3xx_rtc.c/.h can be found in the directory:

STM32F3xx_StdPeriph_Lib_vX.Y.Z\Libraries\STM32F3xx_StdPeriph_Driver.

These five drivers provide a fully compatible API making it easy to move from one product to

another.

3.1

Start with the RTC driver

Before using the RTC features:

●

Enable the RTC domain access (see following note)

●

Configure the RTC prescaler (Asynchronous and Synchronous) and RTC hour format

using the

RTC_Init() function.

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