keyboard/infinity/mbed-infinity/README

   1 mbed fix for Infinity
   2 =====================
   3 Without linker script patch it doesn't place vector table in final binary.
   4 And clock is configured to 48MHz using internal clock reference and FLL multiplication.
   5
   6
   7 mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/system_MK20D5.c
   8     Fix SystemInit: clock setup for internal clock. Inifinity has no external Xtal.
   9
  10 mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/cmsis_nvic.c
  11     Fix NVIC vector address of firmware 0x1000 instead of 0x0
  12
  13 mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/TOOLCHAIN_GCC_ARM/MK20D5.ld
  14     Fix memory map for Infinity bootloader
  15         Flash starts at 0x1000
  16         No flash config bytes sector
  17
  18 USBDevice/USBDevice/USBHAL_KL25Z.cpp
  19     Fix USB clock setup, see below.
  20
  21
  22 2015/01/04  Based on mbed-sdk @2f63fa7d78a26.
  23
  24
  25
  26 Kinetis USB config
  27 ==================
  28 Clock source: Internal reference clock wth FLL
  29     SIM_SOPT[USBSRC] = 1(MCGPLLCLK/MCGFLLCLK)
  30     SIM_SOPT[PLLSEL] = 0(MCGFLLCLK)
  31
  32 Clock dividor:
  33     SIM_CLKDIV2[USBDIV] = 0
  34     SIM_CLKDIV2[USBFAC] = 0
  35
  36 Clock enable:
  37     SIM_SCGC4[USBOTG] = 1
  38
  39