Interrupt of rtc_b alarm in MSP430FR5969

Pinky Patel

Other Parts Discussed in Thread: MSP430WARE

Hi,

I want alarm at specified time(eg 6.15 am). My RTC is working fine, but alarm event is not. Before starting RTC i have set the alarm event as

RTCAMIN = 0x15 //Disable the interrupt

RTCAHOUR = 0x06 //Disable the interrupt

RTCAMIN = RTC_AE | 0x15 //Enable the interrupt

RTCAHOUR = RTC_AE | 0x06 //Enable the interrupt.

But it is not coming in the isr. Is this correct setting i am doing.

where RTC_AE = 0x80

over 11 years ago

0 Pinky Patel over 11 years ago

Intellectual 280 points

Can any one guide me

0 Todd Anderson78572 over 11 years ago in reply to Pinky Patel

Guru 14640 points

I would start by comparing your code to the msp430fr59xx_rtc_02.c code found in the latest msp430ware (95).

It has an interrupt set up - not necessarily the same, but it may be a good starting point...

0 Jens-Michael Gross over 11 years ago

Guru 227245 points

In addition to setting RTC_AE for selecting the value(s) you want to trigger the alarm, you also need to globally enable the alarm events by setting the RTCAIE bit in RTCCTL0. And of course you need to set GIE to allow any interrupts at all.

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Interrupt of rtc_b alarm in MSP430FR5969