NECROTHREAD ARISE!I keep getting asked this so Im going to go ahead and put this here (mostly because this is where the techkeys.us info link leads for the GH60 rev.c)
GH60 rev.c quick and dirty "worked for me" WINDOWS firmware instructions
Download:
FLIP :
http://www.atmel.com/tools/flip.aspx (updated link 5-12-16)
winavr:
https://sourceforge.net/projects/winavr/QMK firmware:
https://github.com/jackhumbert/qmk_firmware/archive/master.zip1: Install FLIP and winavr and unzip QMK to an directory on your hard drive
2: Plug in GH60 after you have assembled it windows will say "Unrecongnized usb device" (it has no firmware yet)
3: Open windows device manager (could help to unplug other keyboards now)
4: Press button on back of PCB, it will disconnect and re-connect with another "Unrecognized usb device" warning. But now the chip is in bootloader mode. If you watch the device manager when then this is happening it will be easier to find the device, as it will appear either a unrecognized device or "HID keyboard device"
5: Find unrecognized device in device manager, right click > update driver software. The diver for the atmega chip is in the FLIP directory. Tell windows to look in the flip program directory for the driver. After it is done installing the driver it will take a few minuets but the keyboard (still in bootloader mode) will be detected and shown as an "atmega32u4" -- Congrats! you can now flash your firmware with FLIP.
6: Open windows command prompt, navagate to <your-QMK-unzip-location>\qmk_firmware-master\keyboard\gh60
7: type "make", winavr will now compile the firmware in that directory producing a .hex file in the same directory
8: Open FLIP, click on the microchip icon in the upper left "Set target device" "atmega32u4"
9: click the "Select a communication medium" (looks like a usb cord next to microchip icon), click USB > Open. If you successfully installed the drivers for the atmega32u4 you should now be able to File > Load HEX file (the one you just compiled) then click "Run" in the lower left of the FLIP screen.
10: Un-plug and re-plug in your GH60 rev.c, Done