How to use gpio in linux 6.2.1, Gpio mapping table, Gpio sample code – IBASE IB102 User Manual
Page 64: How to use gpio in linux 6.2.1. gpio mapping table
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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