APP_timer & RTC

RE: APP_timer & RTC

anuja — Tue, 09 Jan 2018 06:26:05 GMT

Hi,

Thank you for the answer.In my code, in the appRTC handler, I was always comparing with the NRF_DRV_RTC_INT_COMPARE0 and inside ppi_init() function it was &NRF_RTC2->EVENTS_COMPARE[1] which should be :

&NRF_RTC2->EVENTS_COMPARE[0] for both the channels(3&7) and the count_timer variable was static which I made to global.Then in appRTCInit() function, I made initialization like below:

nrf_drv_rtc_config_t m_default_config = NRF_DRV_RTC_DEFAULT_CONFIG(2);
	m_default_config.prescaler = 4095;
	m_default_config.interrupt_priority = 2;

So everything is working fine now.

RE: APP_timer & RTC

anuja — Tue, 09 Jan 2018 06:17:45 GMT

i have done that

RE: APP_timer & RTC

MartinBL — Fri, 05 Jan 2018 13:45:06 GMT

You also need to enable the RTC driver after you have configured it with:

nrf_drv_rtc_enable(&rtc);

RE: APP_timer & RTC

anuja — Fri, 05 Jan 2018 12:12:39 GMT

In the rtc handler function, I have this line: int_type == NRF_DRV_RTC_INT_COMPARE0 and I have declared in NRF_DRV_RTC_INSTANCE(2).Whether this COMPARE0 register belongs to RTC0 or RTC2?

RE: APP_timer & RTC

anuja — Fri, 05 Jan 2018 07:58:43 GMT

okay as mentioned in the above code still in the appRTChandler function if I put the breakpoint the flow doesn't stop at that point. This particular snippet works only for the first time but if we run the same code again even though I can see even if this condition is true: if(count_timer== (timer_minutes[3]-0x30)) the code doesn't stop at the provided breakpoint. It didn't give an error but executing some task that I Cant interpret. what can be done for this?

RE: APP_timer & RTC

MartinBL — Fri, 05 Jan 2018 07:49:58 GMT

Yes, that should be right.

RE: APP_timer & RTC

anuja — Fri, 05 Jan 2018 05:31:43 GMT

I forgot to tell before I am doing : const nrf_drv_rtc_t rtc = NRF_DRV_RTC_INSTANCE(2); at the top of the code. Is it right ?

RE: APP_timer & RTC

MartinBL — Thu, 04 Jan 2018 15:22:16 GMT

Hi,

The way you are initializing the RTC sets the interrupt priority to 0. This level is reserved for the Softdevice. Try to initialize your RTC like this:

nrf_drv_rtc_config_t rtc_config = NRF_DRV_RTC_DEFAULT_CONFIG(2);
rtc_config.prescaler = 4095;

Or use any of the interrupts reserved for the application like this:

rtc_config.interrupt_priority = 7;

(note that level 5 is not available to the application in S132 v2.0.1).