just a small question on RIOT-OS on the bluepill board.
I’m not getting any ‘actual’ values when using ADC8 and ADC9. The values are somewhat constant. I’m basicly using the example as mentioned in the periph_adc test program. Only using 12 bit resolution and only ADC inputs 8 and 9. I’ve connected the inputs via a potentiometer to the 3.3V supply. I’ve verified that the input value changes via a voltmeter.
So does any have an idea what could be the problem? Has any one used the ADC’s 8 or 9 on the blue pill?