Set up the Rasberry Pi CM4 for use with the Fly-Puppet.

Edit me

Configuring and installing Rasberry Pi CM4 for the Fly-Puppet

Mounting the Rasberry Pi CM4 to the Fly-Puppet

• The Rasberry Pi CM4 mounts to the sockets on the bottom of the Fly-Puppet

  

CM4 onboard EMMC programming

• If your CM4 does not have emmc, but use SD card, please skip this step and [start reading step 2]{./fly-puppet_klipper_cm4.html#cm4-onboard-emmc-programming}
• Turn on DIP switches 5 and 6 on the Puppet board to connect the Pi to the Pullet USB C port. Make sure DOP switches 1 and 2 are in the OFF position.

• Use tweezers to short-circuit PI_BOOT, as shown in the figure below. (In order to ensure the safety of the motherboard inserted into CM4, there is no pin header by default)

  

• Connect Fly-Puppet to the computer using a type-c data cable
• Download rpiboot

• Run RpiBoot directly after downloading, if everything is normal, the words success will appear as pictured below

  

• After running successfully, the emmc of CM4 will be directly mounted as a U disk to the system, which can be directly burned into the system

.

Write OS to SD or EMMC

• If you are using an SD card, mount the SD card on your PC.
• Chose an Operating system to load, It is recommended to use mainsailos or fluiddpi
  • Download MainsailOS
  • MainsailOS Burning Tutorial
  • FluiddPi download
  • FluiddPi Burning Tutorial
• After the burning is completed, please do not start the system, complete the following settings

Post image Burn configuration

Perform these steps before starting up the Rasberry Pi

• Open the mounted EMMC Drive or SD card on your PC.
• Open the config.txt file in the /boot directory and add following two lines configuration

  dtoverlay=pi3-miniuart-bt
  dtoverlay=dwc2,dr_mode=host
  

  

• Create a new blank file under the boot disk, the file name is SSH , no suffix
• WIFI Setup
  • MainsailOS modify /boot/mainsailos-wpa-supplicant.txt
  • FluiddPi modify /boot/fluiddpi-wpa-supplicant.txt
  • Delete the # in front of these 4 lines
  • Change ssid and psk to your WiFi name and password respectively

  

  • The preparations are complete, If you used an SD card now you can install the SD card into Fly-Puppet SD Slot and start it up

Compile Klipper firmware for Linux MCU

• ssh to your klipper host console
• cd to the klipper directory

  cd klipper
  

• Run make clean

  make clean
  

• Open menuconfig

  make menuconfig
  

• Set the following settings
  • Enable extra Low Level configuration options : Un-Checked

  • Micro Controller : Linux Process

    

• Quit and save the configuration

Flash The Rasberry Pi CM4 as a Lunix MCU

• run the following command to flash the Rasberry Pi CM4

  sudo service klipper stop
  make flash
  sudo service klipper start
  

• Add the following to your Fly-Puppet printer.cfg file to connect the Rasberry Pi CM4 as an MCU in klipper.

  [mcu host]
  serial: /tmp/klipper_host_mcu