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pftf / RPi4

Raspberry Pi 4 UEFI Firmware Images
https://rpi4-uefi.dev
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Using mini-UART serial port as input #254

Closed phanbagiabao2001 closed 2 months ago

phanbagiabao2001 commented 3 months ago

I connect 3 pins: GND, GPIO14 (UART_TX) and GPIO15 (UART_RX) with my PC and use Minicom to display the boot message. Instead of using USB keyboards as input, how can I use the mini-UART serial port as input? I tried to press on keyboard of computer host when choosing boot options (F1 to Shell, ESC to setup,...) but it has no effection. What must I do to use mini-UART from PC host?

phanbagiabao2001 commented 2 months ago

The problem is due to using minicom. I tried gtkterm and it worked well