keyboard/infinity/README

   1 Infinity
   2 ========
   3 Massdrop Infinity Keyboard:
   4 https://www.massdrop.com/buy/infinity-keyboard-kit
   5
   6 kiibohd controller(MD1):
   7 https://github.com/kiibohd/controller
   8
   9 DFU bootloader:
  10 https://github.com/kiibohd/controller/tree/master/Bootloader
  11
  12 Program with bootloader:
  13     $ dfu-util -D kiibohd.dfu.bin
  14
  15 Pinout:
  16 https://github.com/kiibohd/controller/blob/master/Scan/MD1/pinout
  17
  18 MCHCK compatible:
  19 https://mchck.org/about/
  20
  21 MCU Freescale MK20DX128VLF5 48-QFP:
  22 http://cache.freescale.com/files/32bit/doc/data_sheet/K20P48M50SF0.pdf
  23
  24
  25
  26 Pin Usage
  27 =========
  28 Key Matrix:
  29         For v1.0 (without LED support)
  30                 strobe(output high):            ptb0 ptb1 ptb2 ptb3 ptb16 ptb17 ptc4 ptc5 ptd0
  31                 sense(input with pull-down):    ptd1 ptd2 ptd3 ptd4 ptd5 ptd6 ptd7
  32         For v1.1a (with LED support)
  33                 strobe(output high):            ptc0 ptc1 ptc2 ptc3 ptc4 ptc5 ptc6 ptc7 ptd0
  34                 sense(input with pull-down):    ptd1 ptd2 ptd3 ptd4 ptd5 ptd6 ptd7
  35
  36
  37 SWD pinout:
  38     SWD_CLK(PTA0) SWD_DIO(PTA3)
  39     SWD pins are placed next to reset button; SWD_CLK, SWD_DIO, GND, VCC from top.
  40     Note that RESET is also needed to get full control with OpenOCD.
  41
  42 LED:
  43     PTA19(turns on with output high)
  44
  45
  46
  47 Memory map
  48 ==========
  49 kiibohd bootloader: Lib/mk20dx128vlf5.bootloader.ld
  50 0x0000_0000 +-------------------+ -----------------+---------------+ Vector table
  51             | .vectors          | ------------.    | StackPointer0 |     of Bootloader
  52             | .startup          |              \   | ResetHandler1 |
  53             | .rodata           |               `--+---------------+ 0xF8
  54 0x0000_0400 | .flashconfig(0x10)|
  55       _0410 | .text             |
  56             | .init             |
  57 0x0000_1000 +-------------------+ -----------------+---------------+ Vector table
  58             | _app_rom          | ------------.    |               |     of App
  59             |                   |              \   |               |
  60             |                   |               `--+---------------+
  61             |                   |
  62             ~                   ~
  63             |                   |
  64 0x07FF_FFFF +-------------------+ 128KB
  65
  66
  67 0x1FFF_E000 +-------------------+ -----------------+---------------+ Vector table
  68       _E0F8 |                   | ------------.    |               |     of App(copied)
  69             |                   |              \   |               |
  70             |                   |               `--+---------------+ mbed NVIC
  71             |                   |
  72             | RAM               |
  73             |                8KB|
  74 0x2000_0000 +-------------------+
  75             |                   |
  76             |                   |
  77             |                   |
  78             |                   |
  79             | RAM               |
  80             |                8KB|
  81 0x2000_2000 +-------------------+ _estack
  82
  83
  84
  85