UM0097 datasheet(87/229 Pages) STMICROELECTRONICS

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UM0097

Peripheral firmware overview

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RTC_PrescalerValue

Example:

This example illustrates how to get the current RTC prescaler value:

{

u32 wCurrent_Prescaler;

...

wCurrent_Prescaler = RTC_PrescalerValue ();

...

}

RTC_PrescalerConfig

Note:

The prescaler is a 20 bit value, the RTC_PrescalerConfig truncates any value, passed in

parameter, that exceeds 20 bits.

RTC_ITStatus

Checks the status of the specified RTC interrupt

RTC_ITClear

Clears the specified RTC interrupt

RTC_EnterCfgMode

Enters the RTC configuration mode

RTC_ExitCfgMode

Exit from the configuration mode

RTC_WaitForLastTask

Waits for last task to be finished

Function Name

RTC_PrescalerValue

Function Prototype

u32 RTC_PrescalerValue (void)

Behavior Description

This routine gets the RTC prescaler value.

Input Parameter

None

Output Parameter

None

Return Value

The current RTC prescaler value

Required preconditions

None

Called Functions

None

Function Name

RTC_PrescalerConfig

Function Prototype

void RTC_PrescalerConfig (u32 Xprescaler);

Behavior Description

This routine is used to configure the prescaler.

Input Parameter

Xprescaler: specifies the new RTC prescaler value.

Output Parameter

None

Return Value

None

Required preconditions

None

Called Functions

RTC_WaitForLastTask, RTC_EnterCfgMode and RTC_ExitCfgMode

Table 42.

RTC library functions (continued)

Function Name

Description

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