The Infinity Ergodox bootloader was the first instance of porting the mk20dx128vlf5 bootloader to the mk20dx256vlh7. The McHCK project did/does not support the mk20dx256vlh7, so this was a rather large effort.
- 2015 - Initial support
- 2016 - Upload support, descriptor cleanup, serial number
- 2017 - Secure dfu flashing, keyboard name inside descriptor and dfu info, reset to firmware with dfu-util
- The flash sector size of the mk20dx256vlh7 is half the size of the flexRAM store size (dfu.h:USB_DFU_TRANSFER_SIZE)
- Debug LED turns on when in bootloader mode
- LCD backlight turns red when in bootloader mode
- Reset to firmware with switch S7
- Top left key on the left hand, top right key on the right hand
- Secure DFU
- Nothing, unless there are requests