RTC_SetDateAsync

C Specification

#include <nitro/rtc.h>
RTCResult RTC_SetDateAsync( 
const RTCDate*    date, 
RTCCallback		callback, 
void*             arg );

Arguments

date Pointer to the buffer storing date data.
callback Pointer to the callback function. This callback is called from within the interrupt handler.
arg Argument to pass to the callback function.

Return Values

If the request succeeds, it returns 0. If the request fails, it returns some numeric value other than 0.

Description

This function asynchronously writes date data to the real time clock. It sends date data to ARM7 and returns the process result without waiting for a response from the processor.  If this function fails, no operation is performed and no user callback function is called.

Caution

Do not define parameter values of nonexistent dates or times. However, you may specify a day of the week that does not match the actual calendar. Values are written to the variable specified by the date argument asynchronously with respect to the function. Do not use this variable for anything else until a user callback function confirms the completion of this asynchronous operation.Because applications cannot change the date, use this API only for debugging during development.

See Also

RTC_SetDate, RTC_GetDate, RTC_GetDateAsync, RTCResult, RTCDate, RTCCallback

Revision History

06/27/2005 Added additional text indicating that the callback is called from the interrupt handler.
05/18/2004 Initial version