Flashing the Gamepad PMOD

Clone controllers may report incorrect values when the PMOD attempts to read from it, rendering them unusable. This issue can be fixed with a simple firmware reflash of the PMOD, using your demoboard as the programmer.

Steps

  1. Get the flashing code:

    git clone https://github.com/psychogenic/gamepad-update
cd gamepad-update
git submodule update --init

  2. If you have an older RP2040 demoboard (TT06/07/08), open src/pinmap.py and change the last line to PinMapSelected = PinMapTT06. Skip this step for the TT ETR (RP2350) demoboard.

  3. Put the gamepad PMOD in programming mode by connecting the PRJ and SWIO pins together with a jumper.

    PRJ and SWIO must be connected together with a jumper to enable programming mode.

  4. Plug the gamepad PMOD into the INPUT PMOD port of your demoboard, and connect the demoboard to your PC. You don’t need any controllers plugged in yet.

  5. Run the flashing script:

    cd src
mpremote mount . + run main.py

    If you have more than one USB serial device connected, mpremote may pick the wrong one. Run mpremote devs to list them, then name the demoboard’s port, for example mpremote connect /dev/ttyACM1 mount . + run main.py.

  6. When prompted, press the RESET button on the demoboard. Wait until it prints Done.

  7. Plug a controller into the gamepad PMOD and press some buttons. You should see them printed in the terminal. Press RESET when you are done.

Your gamepad PMOD should now work nicely with clone controllers!