akhamar / voron_canbus_octopus_sb2040 Goto Github PK

Great guide. When I tried this on my Octopus Pro F429 board the internal flash register reads unknown.

CanBoot for sb2040
Set your sb2040 board to DFU. To do that, remove any power to the board, press the boot button while connecting the board to USB. The board should now be in DFU.

To confirm that you can simple do a lsubs <---------- lsusb

Hello Akhamar,

First of all many thanks for sharing your detailed tutorial, it was very helpful and I now have a working SB2040 connected to my Octopus 1.1 over bridge mode. Since it took me quite a while to get it all working, here are some minor suggestions for making it even easier to follow for canbus noobs like me:

• You could mention when to connect and disconnect which cable, USB-C vs. 4 wire canbus etc
• Which cables can be plugged/unplugged with power on, and which ones could cause damage (I played it careful and probably turned my printer on and off and SSH'ed back into the Pi 100 times over the past 2 days.... 😅)
• Show the results you should get after each command, to know when and where exactly something is going wrong, you already have these for some but not for others.

Just some ideas, to make the best tutorial I found for bridge mode even better!

Kind regards,
Lukas

The section getting you to set the can0 file then has you check to see if the network shows up (the ip a. and ip -details -statistics link show can0 ) At this stage of the guide the octopus only has canboot flashed and so isn't acting as a USB-CAN bridge and so the CAN network won't show up.
This has caused some issues for people following the guide as they thing something has gone wrong at this stage.

I suggest maybe leaving the can0 file creation at this point, but move any network checking until after Klipper itself is flashed to the octopus (but before flashing klipper to the SB2040).