I’m trying to use one GPIO on the X9 Extension Connector of Viola Carrier board, I choose to use pin 18 which contains SODIMM_63 with one pull up resistor. I try to do the following commands without success:
echo 63 > /sys/class/gpio/export echo "out" > /sys/class/gpio/gpio63/direction echo 1 > /sys/class/gpio/gpio63/value echo 0 > /sys/class/gpio/gpio63/value
After that I realized that 63 wasnt the right Linux number to activate, I’ve tried some other numbers and pins also without success. How can I find the correct number to activate? What am I doing wrong? I realized also that the WB version have some gpio not connected, can I use pin 18 (SODIMM_63)?