SAMA5D3 Environmental Testing Gpio--yx test

Description

Gpio map Relationship yx0--20 yx1--16 yx2--12 yx3--10 yx4--14 yx5--4 yx6--2 yx7--0

Use cat mode to capture the level, if the character ' 1 ', means the input node is not closed, if the character ' 0 ', representing the external input node closed,

1 Configuring Gpio

[Email protected]:~ echo >/sys/class/gpio/export
[Email protected]:~ echo >/sys/class/gpio/export
[Email protected]:~ echo >/sys/class/gpio/export
[Email protected]:~ echo >/sys/class/gpio/export
[Email protected]:~ echo 4 >/sys/class/gpio/export
[Email protected]:~ echo 2 >/sys/class/gpio/export
[Email protected]:~ echo 0 >/sys/class/gpio/export

2 Configuring the direction of the Gpio--input

[Email protected]: echo in >/sys/class/gpio/pioa20/direction
[Email protected]: echo in >/sys/class/gpio/pioa16/direction
[Email protected]: echo in >/sys/class/gpio/pioa12/direction
[Email protected]: echo in >/sys/class/gpio/pioa10/direction
[Email protected]: echo in >/sys/class/gpio/pioa14/direction
[Email protected]: echo in >/sys/class/gpio/pioa4/direction
[Email protected]: echo in >/sys/class/gpio/pioa2/direction
[Email protected]: echo in >/sys/class/gpio/pioa0/direction

3 Capture Level:

[Email protected]: cat/sys/class/gpio/pioa20/value//If the character ' 1 ' is returned, the input node is not closed, if it is the character ' 0 ', the external input node is closed

[Email protected]: Cat/sys/class/gpio/pioa16/value

[Email protected]: Cat/sys/class/gpio/pioa12/value

[Email protected]: Cat/sys/class/gpio/pioa10/value

[Email protected]: Cat/sys/class/gpio/pioa4/value

[Email protected]: Cat/sys/class/gpio/pioa2/value

[Email protected]: Cat/sys/class/gpio/pioa0/value

SAMA5D3 Environmental Testing Gpio--yx test