How to enable the Reset bit in the Reset Register of Power Management

RE: How to enable the Reset bit in the Reset Register of Power Management

Sigurd — Tue, 24 Jan 2017 12:37:00 GMT

Only a 1k ohm external pulldown resistor should be necessary. Also if the device is restarting all the time, it is probably because of an error in your code. See this thread on how to debug, and find the error that is causing the restart.

RE: How to enable the Reset bit in the Reset Register of Power Management

SumitS — Tue, 24 Jan 2017 10:51:52 GMT

we have Pulled it down using 1M ohm resistor. Should this do. Or only 1k ohm is recommended

RE: How to enable the Reset bit in the Reset Register of Power Management

Sigurd — Thu, 19 Jan 2017 14:22:46 GMT

In normal mode there is no way to disable the nReset function of the nRESET/SWDIO pin. Are you having problem with the device resetting? In the latest reference design an additional 1k ohm external pulldown resistor on the SWDCLK is now recommended if you are having reset issues.

RE: How to enable the Reset bit in the Reset Register of Power Management

SumitS — Thu, 19 Jan 2017 10:37:02 GMT

Hi,

I want to disable the external reset pin, during runtime. How can i do that.

Regards, Sumit

RE: How to enable the Reset bit in the Reset Register of Power Management

Sigurd — Thu, 19 Jan 2017 09:53:13 GMT

Hi,

NRF_POWER->RESET = 1 enables pin reset in debug interface mode, is this what you want to do? Or do you want to reset? Then you can use NVIC_SystemReset(), or sd_nvic_SystemReset() if you have enabled the SoftDevice.