IBASE IB102 - Manual (Page 64)

64
IB102
6.2. How to use GPIO in Linux
6.2.1. GPIO Mapping Table
GPIO
Logical Number Physical Number
1 32
2 33
3 34
5 36
7 38
8 39
9 81
10 82
11 40
12 41
6.2.2. GPIO Sample Code
# GPIO example 1: Output (take GPIO 32 as example)
echo 32 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio32/direction
echo 0 > /sys/class/gpio/gpio32/value
echo 1 > /sys/class/gpio/gpio32/value
# GPIO example 2: Input (take GPIO 32 as example)
echo 32 > /sys/class/gpio/export
echo in > /sys/class/gpio/gpio32/direction
cat /sys/class/gpio/gpio32/value