PIN is not a valid PIN name on MCU

Since I do not know what you have built and what you intended to built:

  1. Read through Klipper Architecture / Ecosystem to get some understanding how Klipper works
  2. Get the general config here for the Manta: GitHub - bigtreetech/Manta-M8P
    • Note that there are different version of the M8P - choose the correct one
  3. Get the general config for the EBB here: EBB/EBB SB2209 CAN (RP2040)/sample-bigtreetech-ebb-sb-rp2040-canbus-v1.0.cfg at master · bigtreetech/EBB · GitHub
  4. Follow the setup instructions for Klipper here: Installing Klipper with KIAUH
    • Build the respective firmwares according to the connection scheme you want to use (FOLLOW CLOSELY the instructions on top of the cfg files)
    • For the EBB only CAN is applicable
    • For the M8P both USB or CAN could be applicable - You need to choose one according to your wiring
    • Assuming you go by CAN only, obtain your canbus_uuid according to CANBUS - Klipper documentation
  5. Flash both boards with their respective firmware
  6. The representation of the M8P and EBB in your printer.cfg should finally look like (still assuming CAN only):
    [mcu] # This is the M8P
    canbus_uuid: 4b94c57be78e #YOURS WILL BE DIFFERENT - CHANGE IT  TO MATCH
    
    [mcu EBBCan]
    canbus_uuid: 2f0b1ce14660 #YOURS WILL BE DIFFERENT - CHANGE IT  TO MATCH
    
  7. Forget about the serial = /tmp/klipper_host_mcu. You likely do not need it, and if you will know.