Overview
The Fly-MMU V1.0 H723 can be connected to any Duet 3 mainboards produced by Duet3D (or cloned by Fysetc) as well as another STM32H743 or STM32H723 board. This includes, but is not limited to:
- Duet 3 6HC
- Duet 3 6XD
- Duet 3 Mini 5+
- Fysetc Big Dipper
- STM32H723 board
- STM32H743 board
- STM32F4 board with an spi2can module
How to connect the board
CAN-FD only requires 2 wires to be connected between each board, CAN-H and CAN-L.
We recommend using stranded twisted wire pairs, such as those found in ethernet patch cables. If using a board such as the Fly-RRF-36 that comes supplied with a cable, we suggest twisting the CAN wires together.
The yellow wire on the CAN-FD cable is the CAN-H wire and the white is the CAN-L wire. CAN-H is connected to CAN-H and CAN-L is connected to CAN-L on the mainboard.
Please ensure that you have the 120 ohm jumper installed if you are using this just with a mainboard or if it is the last expansion board on the CANbus.
Also ensure that the slider near the CAN port is set to CAN and not RS232.
The default CAN address is set by the firmware as 119.