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SB2209 not found on CANBus #57

Open FlorianWilk opened 1 year ago

FlorianWilk commented 1 year ago

I can't get my SB2209 working over CAN, need help:

I have an Octopus MCU with Klipper, which is connected via USB to CAN Bridge with my PI. "~/klippy-env/bin/python ~/klipper/scripts/canbus_query.py can0" gives me the uuid of my Octopus MCU (no SB2209 connected at this time).

Then i flashed Klipper on the SB2209 via USB - according to the Documentation, STM32G0B1, 8Mhz, PB0/PB1, 1000000Baud. Flashing went fine ("File downloaded succesfully"). I removed the 5V jumper and set the CANBus Terminator Jumper R120 on the SB2209, connected it to the Octopus via RJ11.

But it's not found on the CanBus, no matter what i try (flashed several times now, checked wiring of the RJ11, etc..). "~/klippy-env/bin/python ~/klipper/scripts/canbus_query.py can0" still gives me only one uuid - the one from my OctopusBoard

LEDs on the SB2209 are both on (green and red). Not sure what this means, can't find it on the documentation.

FlorianWilk commented 1 year ago

.... i was using the wrong CAN Port in Klipper for my Octopus (i used PB8/PB9) but correct is PD0/PD1.

BladerunnerxRC commented 10 months ago

I have had at least 3 issues where the usb cable was sub par or may have been just not good enough. Also make sure it is not a power only usb cable.