Print Page - PC3 pin unavailable as GPIO

Title: PC3 pin unavailable as GPIO
Post by: pac on October 29, 2020, 01:02:15 PM

Hi All,
I'm using an A20 Olinuxino LIME with A20-OLinuXino-bionic-base-20201008-190649 image.
Trying to export the PC3 pin to use them as GPIO, I get that this pin is busy (already used ?).

How can I get PC3 pin available as GPIO ?

(in the past I got that pin available for GPIO modifying the FEX file.)

Many thanks in advance
Paolo

Title: Re: PC3 pin unavailable as GPIO
Post by: martinayotte on October 30, 2020, 08:19:30 PM

What output is provided by "cat /sys/kernel/debug/gpio" command ?
You will probably see what is currently using PC3 ...

Title: Re: PC3 pin unavailable as GPIO
Post by: LubOlimex on November 02, 2020, 10:10:09 AM

https://www.olimex.com/forum/index.php?topic=7737.msg29740#msg29740

Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: pac on October 29, 2020, 01:02:15 PM