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Issue using RTC Alarm on 11u68

Question asked by Joseph Boykin on Mar 28, 2017
Latest reply on Apr 5, 2017 by Joseph Boykin

I have the LPC Xpresso 11U68 demo board and I'm trying to get the RTC alarm to work.  I can change the COUNT register and it is properly incrementing.  The RTC status is 0x90 and the MATCH register is 0xffffffff.  If I call Chip_RTC_SetAlarm(LPC_RTC, value) then read back the MATCH register it is unchanged from 0xffffffff.


Is there anything special I need to do in order to change the alarm?