I bought two VisionFive 2 SBC and one of them boots nicely with the debian image, but I have not been able to get the other one to boot. I have tried two different SD-cards, both of which works fine with the card that boots. I am using the same power source (100 W USB C).
What else can I do to troubleshoot the card that does not boot?
The advantage of having two boards, as long as both have 3.3 volt TTL GPIO pins - which will be the case if they are the same make and model, is you can use one with 3 wires to connect to the other
And then use a program like cu/screen/minicom/ckermit/dterm/picocom/putty/cutecom… for interactive access. Or just tail -f the serial device if you only need the output.
Ah, yeah. Good point. Be careful tho, the pins are weak enough. I had troubles connecting usb2uart and it got destroyed, but I bought a pack of them. Better safe than sorry.
Nope, I just connected VF2’s one of signal wire to GND of pl2303’s and vice versa. pl2303 fried probably because VF2 forced current into it’s crystal like a dead short of a diode I dunno how lol. Damaged pl2303 was able to receive, but never was able to transmit and ran hot. No 3V3 of both were ever connected (I don’t install 3V3 wire at all in my setups)