klipper_canbus

3DMellow UTOC 1 & 3

PI Setup

` sudo nano /etc/network/interfaces.d/can0 `

allow-hotplug can0
iface can0 can static
 bitrate 500000
 up ifconfig $IFACE txqueuelen 256
 pre-up ip link set can0 type can bitrate 500000
 pre-up ip link set can0 txqueuelen 256

and press Ctrl+X to save.

you can now reboot the pi with ` sudo reboot `

Test the network

Once the pi has rebooted you can run the ip -s link show can0 command to check your network status.

You should see a line like the below in the results. The key thing to note is that the network is UP for now.

../images/iplink.png

Wiring Guide – Coming Soon

Termination Guide - Coming Soon

Troubleshooting

  1. My device doesnt have a name when I run lsusb

If your device id is 4d4c:5543 you have an early revision of the board intended for use with the Gemini boards, these boards ship with a firmware which is not recognised by Linux and will require manual flashing in order to resolve. see utoc flashing

  1. I can see my can0 network but when I connect my device to query the uuid there is no value returned.

    Check Wiring

    Check Firmware

    Check Termination

Flashing UTOC Firmware

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In order to flash the UTOC a jumper cap needs to be installed as indicated in the picture (for UTOC-1 I believe it’s in the same place).

UTOC Bootloader PIN

NOTE: you can also just flash candlelight_fw

If you want the firmware provided by Mellow to flash its here > utc_firmware.bin

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