I made some notes while trying to get the TMK firmware on my Phantom/teensy so that I can go back and reference next time I need to do this. I figured I’d publish in case anyone didn’t know where to start. This would be a crude how-to but anyone with decent PC knowledge should be able to walk through this pretty quickly.
Download and install Git https://git-scm.com
Download dfu-programmer https://sourceforge.net/
Copy the dfu-programmer.exe to C:\Program Files\Git\usr\bin or wherever you installed Git.
Download and install WinAVR https://sourceforge.net/
Download the TMK firmware project https://github.com
There should be a “Download ZIP” button top right.
Extract the ZIP file to C:\Users\<yourusername>
Right-click on keyboard
Select Security tab
Click on the Full Control check box
Launch Git Bash
cd ~/tmk_keyboard-master/keyboard/phantom/ make -f Makefile.lufa ansi
You should end up with a phantom_lufa.hex file that you can now flash to the Phantom/teensy with the teensy loader.
Download the teensy loader https://www.pjrc.com
Plug the teensy into your PC
Open the teensy loader
Press the reset button on the teensy
Open the .hex file you made
Click the curved arrow that points down to flash the hex file.
Click the straight arrow that points to the right to reboot the teensy.
Your keyboard should now be functional.