EPC-R5710 GPIO
GPIO Pin
| Pin | Numbers |
|---|---|
| GPIO1 | 43 |
| GPIO2 | 42 |
| GPIO3 | 475 |
| GPIO4 | 474 |
| GPIO5 | 472 |
Generate the path node number of the corresponding gpioX, increasing with the export orde.
GPIO Loopback Test (Using GPIO1 and GPIO2 as examples)
Step 1: Connect GPIO1 and GPIO2
Step 2: Export GPIO interface
# echo 43 > /sys/class/gpio/export
# echo 42 > /sys/class/gpio/export
# echo out > /sys/class/gpio/gpio1/direction
# echo in > /sys/class/gpio/gpio2/direction
# cat /sys/class/gpio/gpio2/value
0#
echo 1 > /sys/class/gpio/gpio1/value
# cat /sys/class/gpio/gpio2/value
1
