Pin assignment not working

[yuval]

Hi , im using the ble_app_uart project on nRF52832 chip.

Im trying to use SPI pins as: P0.13-data P0.14-clock P0.15-cs. before that i wanted to see that i control the pins and that they are free from another function. i tried to place them high/low but i got no response. i can see that pin P0.15 is toggleling in 10MHz.

how can i see if the pin is assigned to another function? i tried looking for an assignment but didn't fined anything.

[haakonsh]

Hey yk9,

You will have to search your project for any use of those pins. 

What does the signal on p0.15 look like? The CS pin should not toggle at 10MHz, but closer to 10kHz at 500KHz CLK during a large transfer. 

Cheers,

Håkon.

[yuval]

i disabled the SPI function (its not working properly yet) in order to try and see if i can control each pin by it self . no success.

of course i went over the project and found no reference to P0.15 | P0.14 | P0.13. i think there is an assignment some where that is not included in the regular search.

my question is there another way to see the pin assignment . 

[haakonsh]

Yes, you can read the gpio Registers when debugging to see the state and configuration of each GPIO.