I test General Purpose Outputs MRAA Pin numbers 35 to 41, 45 to 47, 52 and 53. I connect 1K resistor and LED for output testing.
I take below reference command for testing above all pins.
echo 77 > /sys/class/gpio/export
echo out > /sys/class/gpio/PC13/direction
echo 1 > /sys/class/gpio/PC13/value
echo 0 > /sys/class/gpio/PC13/value.
I faced issue in MRAA Pin number 35 and Pin number 38. Output not getting on and off for MRAA Pin number 35 and Pin number 38.