NRF52832 disable reset pin segger embedded studio

[tkleinloog]

Hi,

We have custom hardware that includes an NRF52832 microcontroller. Currently pin 0.21 is mapped as reset pin and i cannot seem to figure out how to change this using segger embedded studio. What we are trying to do is using the pin for other purposes then resetting the microcontroller.

I have found that i need to disable the define CONFIG_GPIO_AS_PINRESET, but i cannot seem to find it anywhere in my project. When i change the define in system_nrf52.c to CONFIG_GPIO_AS_PINRESET_x it still seems to use pin21 as Reset. Help would be very much appreciated to sort out this problem.

we are using SDK version 15.0.0

kind regards,

Tim

[Joakim Jakobsen]

Hi Tim.

You will have to remove the preprocessor definition CONFIG_GPIO_AS_PINRESET.

This can be done by opening your project settings->select the common configuration->Preprocessor->Preprocessor Definitions

See picture below:

Best regards,
Joakim

[tkleinloog]

Hi Joakim,

thanks for your response, that was indeed what i was looking for. The only problem is when i remove CONFIG_GPIO_AS_PINRESET pulling the pin low will still draw current and seems to reset the module. Is there anything else that could cause this? I have added a screenshot of my project settings.