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How to enable watchdog

Hi, I'm a beginner in programming Nordic uC and I would like to know how to enable the watchdog in my application. Are there particular functions to call? Thanks!

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0 AmbystomaLabs over 6 years ago

Also since it is not a protected service you can write directly to the registers if you want:

void wdt_init(void)
{
NRF_WDT->CONFIG = (WDT_CONFIG_HALT_Pause << WDT_CONFIG_HALT_Pos) | ( WDT_CONFIG_SLEEP_Run << WDT_CONFIG_SLEEP_Pos);
NRF_WDT->CRV = 150*32768; // 150 sec. timout
NRF_WDT->RREN |= WDT_RREN_RR0_Msk; //Enable reload register 0
NRF_WDT->TASKS_START = 1;
}

//And this bit refreshes the WDT.  Just put it where ever you think is appropriate. 
NRF_WDT->RR[0] = WDT_RR_RR_Reload; //Reload watchdog register 0

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0 AmbystomaLabs over 6 years ago

Also since it is not a protected service you can write directly to the registers if you want:

void wdt_init(void)
{
NRF_WDT->CONFIG = (WDT_CONFIG_HALT_Pause << WDT_CONFIG_HALT_Pos) | ( WDT_CONFIG_SLEEP_Run << WDT_CONFIG_SLEEP_Pos);
NRF_WDT->CRV = 150*32768; // 150 sec. timout
NRF_WDT->RREN |= WDT_RREN_RR0_Msk; //Enable reload register 0
NRF_WDT->TASKS_START = 1;
}

//And this bit refreshes the WDT.  Just put it where ever you think is appropriate. 
NRF_WDT->RR[0] = WDT_RR_RR_Reload; //Reload watchdog register 0

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