Bananapi cm4 gpio

[陳柏儒]

Hello,

 

I tried 

`

echo 463 > /sys/class/gpio/export

`

and it build gpio464 folder under /sys/class/gpio , and I cat `value` file to check gpio status. It seems not work.

The same gpio was working on Bananapi official debian and Ubuntu mate image. How can I solve this problem? 

 

Thanks

[陳柏儒]

I solve this issue. 

 

Because in Armbian image, GPIO pin map as same as Khadas VIM3 (https://docs.khadas.com/products/sbc/vim3/applications/gpio/mainline-linux-table)

I use GPIOA_3, the pin number is 479 not 463.

 

PS. Armbian gpio pin num need to use "mainline linux table".

Edited October 13, 2023 by 陳柏儒