Troubleshooting • Loopback fails on raspberry pi 5

I am trying to run the loopback test between GPIO14 and GPIO15 on raspberry pi 5. I tried

groups yousef
- dialout is included in output.

sudo raspi-config
3. Interface options
16. Serial port
login shell: no
enable: yes

sudo minicom -D /dev/serial0
but no characters are echoed

I also added
enable_uart=1
dtoverlay=uart0
to /boot/firmware/config.txt

I checked /boot/firmware/cmdline.txt, I forget what you are supposed to delete, but I think it's not there.
I also tried a python3 script that chatgpt suggested, but nothing happened.

I am connecting GPIO14 and GPIO15 through a 1 KOhm resistor.
Are there any suggestions?

Statistics: Posted by Abdulrahman12345 — Sat Nov 30, 2024 4:02 am — Replies 0 — Views 30

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