Init no init parameters

[Yair H]

Hello,

I am using SoftDevice S140 SDK 7.2.0.
I need to initialize the no init parameters.

For doing that I used nrf_power_resetreas_get() return parameter.
Two questions:

1. The API returns 4 (soft reset) after each time that I burn the unit using IAR environment. How can I know that my no init parameters are not initialized?
2. The API returns 1 (reset pin) after each HW reset. Is it OK?

Please advise.
Y.H.

[Susheel Nuguru]

You need to clear the reset reasons once the system boots if it has been reset from known reasons like soft reset .

nrf_power_resetreas_clear(nrf_power_resetreas_get());

It is hard for us to tell why the pin reset occured But check if you have enabled and used the pin reset pin for something else.

[Yair H]

Hi,

The reset pin is floating.

Do I need to connect it to a pull-up or pull-down resistor?

Y.H.

[Susheel Nuguru]

it is nRESET pin, active low, so connect it to pull-up.