35 lines
1.7 KiB
Markdown
35 lines
1.7 KiB
Markdown
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# TADA68 (65% ATMega32U4 PCB)
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The TADA68 comes with a custom firmware based on the LUFA mass storage
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driver, which mounts the user-accessible portion of the flash storage
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as a USB drive. This is prone to failure and can only be accessed by
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hitting the physical reset button on the base of the board, which is
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relatively accessible in an assembled keyboard.
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This keymap has some customisation to work with a TADA68 which has been
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ISP-reflashed (using a USBasp or other ISP) to work with the QMK bootloader.
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This allows use of dfu-programmer to reflash the firmware in DFU mode, and
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bootloader entry and exit with key-combos.
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To build the firmware, set up a build environment according to the standard
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QMK instructions, then run:
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```make tada68:tokyovigilante:production```
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which will build the bootloader, user firmware, and the combined image `<keyboard>_<keymap>_production.hex`.
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Then run
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```avrdude -F -c usbasp -p m32u4 -e -U flash:w:tada68_tokyovigilante_production.hex:a -U lfuse:w:0x5E:m -U hfuse:w:0xD9:m -U efuse:w:0xC3:m -U lock:w:0x3F:m```
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to copy it to your board (connected to the USBasp or other programmer, replacing the -c and filename parameters as required). The fuse and lock
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bitmaps will enable DFU mode.
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Once the board is unplugged and plugged in via USB, the default key-combo to
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enter DFU mode is Fn-Meta-R, then Esc to exit. You can then use
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`make tada68:<keymap>:dfu` to build and flash any other custom keymap you
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like, as the qmk-dfu bootloader can only be replaced using the ISP. This keymap is fairly basic, just make sure any replacement one has a RESET command defined (ideally on a non-default layer).
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More information can be found in the QMK docs: <https://docs.qmk.fm>
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