use initialized WDT after software reset on a NRF52

RE: use initialized WDT after software reset on a NRF52

Hung Bui — Fri, 01 Dec 2017 23:12:37 GMT

Yes, I think so.

RE: use initialized WDT after software reset on a NRF52

trigerion — Wed, 29 Nov 2017 21:13:12 GMT

OK, so calling nrf_drv_wdt_init() again while WDT is running is safe?

RE: use initialized WDT after software reset on a NRF52

Hung Bui — Mon, 27 Nov 2017 10:30:28 GMT

Hi Trigerion,

Soft reset doesn't clear WDT. What you can do is when you booting up, you can read the WDT registers (NRF_WDT->CRV for example) and check if they are not the default reset values. Then you can assign the configuration values according to those in the NRF_WDT registers, call nrf_drv_wdt_init() continue to feed the watch dog from there.