HCL:Raspberry Pi3 Serial Console
This is a quick guide how to connect to the Raspberry Pi console via a USB serial adapter.
First you need a USB serial adapter that can be used to connect to the correct GPIO pins.
The TX and RX wires have to be crossed from the USB adapter to the GPIO pins.
TX <----> RX RX <----> TX
Now it's time to connect to the serial terminal. In this example we are using picocom. The default rate of the Raspberry Pi boot loader is 115200 baud.
#> picocom -q --baud 115200 /dev/ttyUSB0
After powering the Raspberry Pi, with an openSUSE SD card image, you should see the boot loader output inside the terminal.
U-Boot 2020.01 (Apr 14 2020 - 09:16:06 +0000) DRAM: 992 MiB RPI 3 Model B+ (0xa020d3) MMC: mmc@7e202000: 0, mmcnr@7e300000: 1 Loading Environment from FAT... *** Warning - bad CRC, using default environment In: serial Out: vidconsole Err: vidconsole Net: No ethernet found. starting USB... Bus usb@7e980000: scanning bus usb@7e980000 for devices... 4 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Hit any key to stop autoboot: 2