RE: How can I disable RESET of P0.21

u-akihiro — Mon, 05 Dec 2016 13:49:10 GMT

Thanks.

I can use P0.21 as a normal GPIO.

I can not find CONFIG_GPIO_AS_PINRESET in C/C++ tab of uVision dialog, however a project file contains CONFIG_GPIO_AS_PINRESET. So I have deleted those using an text editor.

I sometimes use Xcode to edit an uVison project file, so something may get wrong...

RE: How can I disable RESET of P0.21

Sigurd — Mon, 05 Dec 2016 12:02:13 GMT

Hi,

You can disable the reset on P0.21 by removing the CONFIG_GPIO_AS_PINRESET define. In Keil you can find the defines in "Options for Target.." -> C/C++ tab.

Note: It's written into UICR, so remember to do a nrfjprog --eraseall first