If I enable watchdog in main applicatio it cause bootloader to reboot

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Spartak — Thu, 23 Jul 2020 07:13:40 GMT

Yes. Thank you.

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Øyvind — Thu, 23 Jul 2020 07:13:12 GMT

Hello,

Sorry for the late response. The technical support team at Nordic is currently out in summer vacation and we are somewhat low on resources. Is it working now?

Kind regards,
Øyvind

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Spartak — Tue, 21 Jul 2020 13:44:07 GMT

I found a solution:

static void timer_init(void)
{
static bool m_timer_initialized;

if (!m_timer_initialized)
{
/*if (!nrf_clock_lf_is_running())
{
lfclk_config(); //VG 20200211 for init of LFCLK with external Oscillator
}*/

NRF_CLOCK->EVENTS_LFCLKSTARTED = 0; //20200511 Modified as per Nordic's suggestions. Solves the RTC2 Starting issue
NRF_CLOCK->TASKS_LFCLKSTART = 1;
while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0) {}
NRF_RTC0->TASKS_STOP = 0;

nrf_rtc_event_clear(RTC_STRUCT, NRF_RTC_EVENT_TICK);
nrf_rtc_event_clear(RTC_STRUCT, NRF_RTC_EVENT_COMPARE_0);
nrf_rtc_event_clear(RTC_STRUCT, NRF_RTC_EVENT_COMPARE_1);
NRFX_IRQ_PRIORITY_SET(RTC_IRQn, 5);
NRFX_IRQ_ENABLE(RTC_IRQn);
nrf_rtc_prescaler_set(RTC_STRUCT, RTC_PRESCALER);
nrf_rtc_task_trigger(RTC_STRUCT, NRF_RTC_TASK_CLEAR);
nrf_rtc_task_trigger(RTC_STRUCT, NRF_RTC_TASK_START);
nrf_rtc_int_enable(RTC_STRUCT, RTC_INTENSET_OVRFLW_Msk);

m_timer_initialized = true;
}
}

The problem is in timer that is working from RTC2.

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Spartak — Tue, 21 Jul 2020 13:04:33 GMT

Who can help with these issue. It is not only me who found it.

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Spartak — Tue, 21 Jul 2020 13:00:24 GMT

I don't found a solution

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Øyvind — Tue, 21 Jul 2020 12:59:17 GMT

Yes, I was going to ask you about that. Glad you found the solution.

Kind regards,
Øyvind

RE: If I enable watchdog in main applicatio it cause bootloader to reboot

Spartak — Tue, 21 Jul 2020 11:48:56 GMT

The problem is that bootloader not feed watchdog. If I put breakpoint after checking dfu_enter then it goes to dfu mode