GPIO pins on Viola Board IMX7

How to use all GPIO pins provided in Viola Board V1.2A with Colibri IMX7 Board.

While Connecting pins 8,9,10,11,12 on X10 Connector on Viola board and using LINUX

GPIO echo Command for GPIO linux number 108, 109, 110, 119, 111.

$ echo > /sys/class/gpio/export

$ echo “out” > /sys/class/gpio/gpio89/direction

$ echo 1 > /sys/class/gpio/gpio89/value

Also unable to use UART bound pins on X10 Connecto,

Kindly help

hi @narayanamohan

Could you provide the software version of your module?

How to use all GPIO pins provided in Viola Board V1.2A with Colibri IMX7 Board.

You need to find out which SODIMM Pin Number the pin of X10 Connector on the viola carrier board belong to. Once you know this, you can look up in the datasheet for the GPIO designation. With the designation, you can find out the GPIO number in Linux.

Also unable to use UART bound pins on X10 Connector

What exactly is not working? Which pins from X10 connector did you connect to which uart device?

Best regards, Jaski

Dear Jaski,
Software Linux BSP 2.7

I have SODIMM No.s X10 and X9 connector pin NOs. and GPIOxIO[y] and Linux GPIO number ready.

But upon applying echo command I connected a LED with 100Ohm resistor.

But LED is Not glowing.

ALSO the pins used for UART are also not Working for same LED test.

did you measure the output voltage? Is the led connected to GND on other side?
Have you done any changes to the devicetree similar to this example?