Timer interrupt handler not getting called, please help

RE: Timer interrupt handler not getting called, please help

RK — Sun, 09 Apr 2017 08:22:40 GMT

well you can do what you want but yes the capture captures into the same register you use for timeout which means you'll never time out. Good that you found your error. Nice debugging.

RE: Timer interrupt handler not getting called, please help

Insaf — Sun, 09 Apr 2017 06:39:55 GMT

I found the problem. The interrupt is not getting called because, I am also capturing the timer values from the same channel(CC_CHANNEL0). So when I changed the interrupt listen channel to CC_CHANNEL1, everything works fine. I can capture the values from CHANNEL0, and also I can listen for EVENT_COMPARE interrupt at CHANNEL1.

What I learnt is, don't capture and listen to the same timer channel. Please correct me, if I am wrong.

RE: Timer interrupt handler not getting called, please help

Insaf — Sat, 08 Apr 2017 09:39:35 GMT

Thanks for replying, I have started the timer in the gpio pin handler( tsop_pin_handler function). Timer is working fine, I can capture the timer values. Also, the interrupt handler gets called when the timer values gets reset to 0 after reaching 16 bit limit.

Okay, I will put _WFE in the main loop. But this program is for testing purpose, that's why I didnt put that.

RE: Timer interrupt handler not getting called, please help

RK — Sat, 08 Apr 2017 08:49:00 GMT

Don't see anywhere you start a low frequency clock in that code. And please don't just busy spin at the end, at least put a _WFE in it.