AN3371 datasheet(37/45 Pages) STMICROELECTRONICS

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AN3371

RTC firmware driver API

Doc ID 018624 Rev 5

37/45

Initialization and Configuration

RTC_Init

Initializes the RTC registers

according to the specified

parameters in RTC_InitStruct

<Hour format, Asynchronous

predivisor, Asynchronous

predivisor>.

Yes

RTC_StructInit

Fills each RTC_InitStruct member

with its default value.

Yes

RTC_RefClockCmd

Enables or disables the RTC

reference clock detection.

Yes

RTC_EnterInitMode

Enters the RTC initialization mode.

Yes

RTC_ExitInitMode

Exits the RTC initialization mode.

Yes

RTC_WriteProtectionC

Enables or disables the RTC

registers write protection.

Yes

RTC_WaitForSynchro

Waits until the RTC time and date

registers (RTC_TR and RTC_DR)

are synchronized.

Yes

RTC_TimeStructInit

Fills each RTC_TimeStruct

member with its default value (Time

= 00h:00min:00sec).

Yes

RTC_BypassShadowC

Enables or disables the bypass

shadow feature.

Yes

RTC time and date functions

RTC_SetTime

Sets the RTC current time < RTC

hours, RTC minutes, RTC seconds,

RTC 12-hour clock period

(AM/PM)>.

Yes

RTC_SetDate

Sets the current RTC date. <

Calendar weekday, Calendar

Month, Calendar date, Calendar

year>.

Yes

RTC_GetTime

Gets the current RTC time.

Yes

RTC_GetDate

Gets the current RTC date.

Yes

RTC_DateStructInit

Fills each RTC_DateStruct member

with its default value (Monday 01

January xx00).

Yes

RTC_TimeStructInit

Fills each RTC_TimeStruct

member with its default value (Time

= 00h:00min:00sec).

Yes

RTC_GetSubSecond

Gets the RTC current calendar sub-

seconds value.

Yes

Table 16.

RTC function groups (continued)

Group

Function name

Description

ULPM

density

ULPH

density

series

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