How to verify GPIO function » History » Version 1
Lion Wang, 11/16/2021 10:01 AM
| 1 | 1 | Lion Wang | h1. How to verify GPIO function |
|---|---|---|---|
| 2 | |||
| 3 | Here is some command to verify GPIO151 can control via 40Pins IO. |
||
| 4 | * Set as GPIO mode |
||
| 5 | <pre> |
||
| 6 | echo "mode 151 0" > /sys/devices/platform/1000b000.pinctrl/mt_gpio |
||
| 7 | </pre> |
||
| 8 | * Set as output mode |
||
| 9 | <pre> |
||
| 10 | echo "dir 151 1" > /sys/devices/platform/1000b000.pinctrl/mt_gpio |
||
| 11 | </pre> |
||
| 12 | * Set output high |
||
| 13 | <pre> |
||
| 14 | echo "out 151 1" > /sys/devices/platform/1000b000.pinctrl/mt_gpio |
||
| 15 | </pre> |
||
| 16 | * Set output low |
||
| 17 | <pre> |
||
| 18 | echo "out 151 0" > /sys/devices/platform/1000b000.pinctrl/mt_gpio |
||
| 19 | </pre> |