Hi everybody. I have been using Ubuntu 12.04 just Console and I set /sys/devices/ocp.2/helper.14/AIN1 den I got AIN1 inside the line as the mV measurement. I use 3.3V and Analog ground with PTC (positively change the resistor heat with respect) but sometimes I got max measurement such 1760 mV. So is there something wrong with Ubuntu or what I did. What I did for init.d folder I added as a bash contains: if [ ! -d /sys/devices/ocp.2/helper.14 ]; then echo cape-bone-iio > /sys/devices/bone_capemgr.9/slots; fi so it works... But I got miss conversion SOMETIMES (1 miss per 10 samples). I used for AIN1 (P9-40) connected a PTC with parallel 480 ohm resistor and P9-03 3.3V and P9_34 AGND. I did not used VADC P9-32 as reference. Is there anybody knows what I did wrong?
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