nrf52832 system on sleep from rtc

RE: nrf52832 system on sleep from rtc

jwx — Fri, 11 Oct 2019 02:47:10 GMT

I use rtc2，it can't wake up the system。but use rtc0 is ok，is this right？

RE: nrf52832 system on sleep from rtc

tangyu — Wed, 20 Mar 2019 10:41:15 GMT

thanks,

I replaced the RTC with a timer.Enable the timer to go to sleep after, timer interrupt after the wake - up disabled timer.

RE: nrf52832 system on sleep from rtc

Jared — Fri, 15 Mar 2019 14:51:15 GMT

Hi,

It seems that the program never wakes up from sleep because the interrupt is not enabled. Instead of calling nrf_drv_rtc_enable(&rtc) in rtc_enable(), try calling nrf_drv_rtc_tick_enable(&rtc,true);

void rtc_enable(void)
{
	nrf_drv_rtc_counter_clear(&rtc);
    nrf_drv_rtc_tick_enable(&rtc,true);
	mcuInSleep = true;
}

Best regards

Jared

RE: nrf52832 system on sleep from rtc

tangyu — Fri, 15 Mar 2019 04:04:23 GMT

Hi，

I'm working on a project that USES nRF52832's sleep mode.The flow chart is as follows.

The above code is my experimental sleep program, but will not be RTC wake up after sleep.Is my RTC and sleep mode used correctly?

My test code, RTC does not wake up the sleeping MCU.

RE: nrf52832 system on sleep from rtc

Jared — Thu, 14 Mar 2019 13:09:54 GMT

Hi,

I'm not sure I understand what the problem is. Could you elaborate?

Best regards

Jared