UM0097 datasheet(90/229 Pages) STMICROELECTRONICS

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Peripheral firmware overview

UM0097

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RTC_AlarmConfig

Example:

This example illustrates how to configure a new alarm time.

{

u32 wAlarm_Time;

...

wAlarm_Time = 0x007FFFFF;

...

RTC_AlarmConfig (wAlarm_Time);

...

}

RTC_FlagStatus

Example:

This example illustrates how to check the RTC Second interrupt flag.

{

...

/* Test if the Second interrupt request is set */

if (RTC_FlagStatus (RTC_SIR))

{

...

}

Function Name

RTC_AlarmConfig

Function Prototype

void RTC_AlarmConfig (u32 Xalarm);

Behavior Description

This routine sets the alarm time value. It updates AHI & ALO register

values.

Input Parameter

Xalarm: specifies the new RTC alarm time value.

Output Parameter

None

Return Value

None

Required preconditions

None

Called Functions

RTC_WaitForLastTask, RTC_EnterCfgMode and RTC_ExitCfgMode.

Function Name

RTC_FlagStatus

Function Prototype

FlagStatus RTC_FlagStatus (RTC_FLAGS Xflag);

Behavior Description

This routine is used to check if the specified RTC flag is set or not.

Input Parameter

Xflag: Designates an RTC flag. Refer to RTC flags on page 85 for more

details on the allowed values of this parameter.

Output Parameter

None

Return Value

The specified flag status:

– SET: The corresponding flag is SET

– RESET: The corresponding flag is RESET

Required preconditions

None

Called Functions

None

UM0097 데이터시트(PDF) 90 Page - STMicroelectronics

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