AIN0 not measuring on pca10028

[gaminn]

Hello, measuring ADC signal on P0.26/AIN0/XL2 and P0.27/AIN1/XL1 doesn't work (I get constant value from the ADC not reflecting actual voltage on the pin). AIN2 - AIN7 seem to work.

I hope 32khz xtal (it occupies these two pins) is disabled by calling SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION, NULL);

What else can it be?

[Stefan Birnir Sverrisson]

Hi gaminn

To disconnect the crystal and enable the pins as GPIO/AIN pin you need to perform the steps described in the nRF51 DK User guide, section 5.6

[gaminn]

Classic example of RTFM :) Thanks.