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     Strobe(output high):            PTB0 PTB1 PTB2 PTB3 PTB16 PTB17 PTC4 PTC5 PTD0
  30     Sense(input with pull-down):    PTD1 PTD2 PTD3 PTD4 PTD5 PTD6 PTD7
  31
  32
  33 SWD pinout:
  34     SWD_CLK(PTA0) SWD_DIO(PTA3)
  35     SWD pins are placed next to reset button; SWD_CLK, SWD_DIO, GND, VCC from top.
  36     Note that RESET is also needed to get full control with OpenOCD.
  37
  38 LED:
  39     PTA19(turns on with output high)
  40
  41
  42
  43 Memory map
  44 ==========
  45 kiibohd bootloader: Lib/mk20dx128vlf5.bootloader.ld
  46 0x0000_0000 +-------------------+ -----------------+---------------+ Vector table
  47             | .vectors          | ------------.    | StackPointer0 |     of Bootloader
  48             | .startup          |              \   | ResetHandler1 |
  49             | .rodata           |               `--+---------------+ 0xF8
  50 0x0000_0400 | .flashconfig(0x10)|
  51       _0410 | .text             |
  52             | .init             |
  53 0x0000_1000 +-------------------+ -----------------+---------------+ Vector table
  54             | _app_rom          | ------------.    |               |     of App
  55             |                   |              \   |               |
  56             |                   |               `--+---------------+
  57             |                   |
  58             ~                   ~
  59             |                   |
  60 0x07FF_FFFF +-------------------+ 128KB
  61
  62
  63 0x1FFF_E000 +-------------------+ -----------------+---------------+ Vector table
  64       _E0F8 |                   | ------------.    |               |     of App(copied)
  65             |                   |              \   |               |
  66             |                   |               `--+---------------+ mbed NVIC
  67             |                   |
  68             | RAM               |
  69             |                8KB|
  70 0x2000_0000 +-------------------+
  71             |                   |
  72             |                   |
  73             |                   |
  74             |                   |
  75             | RAM               |
  76             |                8KB|
  77 0x2000_2000 +-------------------+ _estack
  78
  79
  80
  81