How can I use Rpi GPIO Header of iMX93?

dpcivl — Mon, 19 Aug 2024 03:02:08 GMT

Hello, I am currently working on a project with the iMX93 EVK board. I am trying to control an interface by running a blinking LED example, but I'm having trouble figuring out how to use the RPi GPIO header.

I suspect that the RPi GPIO header is associated with 'gpiochip2'. I tried using GPIO line 0, assuming it was related, but the LED didn't respond. I also tried changing the line to 17 (the BCM number), but that didn't work either. I ruled out a hardware issue because the LED lights up when I connect it directly to 3.3V.

Could you please guide me on how to resolve this issue? Which documentation should I refer to for more information?

Below is the Python code I executed:

import gpiod from gpiod.line import Direction, Value import time LINE = 17 with gpiod.request_lines( "/dev/gpiochip2", consumer="blink-example", config={ LINE: gpiod.LineSettings( direction=Direction.OUTPUT, output_value=Value.ACTIVE ) }, ) as request: while True: request.set_value(LINE, Value.ACTIVE) time.sleep(1) request.set_value(LINE, Value.INACTIVE) time.sleep(1)

Re: How can I use Rpi GPIO Header of iMX93?

dpcivl — Mon, 19 Aug 2024 09:08:48 GMT

I found that those pins not working were used to do something else not for GPIO but SPI, SAI, CAN ...

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How can I use Rpi GPIO Header of iMX93?

Re: How can I use Rpi GPIO Header of iMX93?