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Interfacing (DSI, CSI, I2C, etc.) • I am loosing my mind over getting miniUART to work

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I am trying to perform a UART loop back test on the Raspberry Pi Zero 2 W with OS version bookworm. I am using miniUART so the pins 8 and 10 are set to TXD1 and RXD1 by having enable_uart=1 in config.txt (which I set through the raspi-config command) and serial console is disabled. I did physcially wire pin 8 and 10 together. I did set core_freq=250 in config.txt so that UART operates at a stable rate. After trying numerous attempts with baud rates of 9600 and 115200, I've had no luck.

I've used the settings: 9600 8N1 and 115200 8N1
I've used both /dev/serial0 and /dev/ttyS0
I remembered to set the baud with stty -F

I'm using minicom to do the test but every time I enter a key nothing shows up on the screen. If anyone has a clue as to what I might be missing or what I might have configured incorrectly, your insight would be greatly appreciated.:cry:

The command I use for minicom: minicom -D /dev/ttyS0 -b 9600 -o

Med

Statistics: Posted by medp1991 — Sat Feb 03, 2024 9:45 am — Replies 3 — Views 95



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