Can't connect to mcu

[judy2k]

Printer Model

Voron 2.4 Rev D

Hey all!

This is my first build. I've just finished the physical build of an LDO kit of the Voron 2.4 300mm Rev D with a Raspberry Pi 4, and I've flashed the Pi with the latest version of Raspberry Pi OS Lite.

From the Pi, I can see the Nitehawk PCB, but I can't see the Leviathan board. Both are connected via USB.

• I've tried turning everything off and on again
• I've tried 3 different USB cables (including the one that came with the kit). I've also tried different USB sockets on the Pi, just in case.
• I've unplugged the Nitehawk's USB cable (in case it was conflicting in some way)
• I can't flash the Leviathan board, because even setting the board to DFU mode doesn't make it appear in `lsusb`. (In fact following the instructions for rebooting into DFU doesn't seem to do much - should I expect any of the board's LEDs to blink or anything? Maybe this isn't working for me for some reason.)

In the Leviathan instructions, I haven't followed the host setup instructions for CAN or UART configuration on the Pi. I don't think I need them, because I'm connecting via USB – could someone confirm that's the case? (Steps 14 and 17 in the linked docs).

Would appreciate any help anyone can offer!