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authorJun Wako <wakojun@gmail.com>2015-01-04 17:03:47 +0900
committerJun Wako <wakojun@gmail.com>2015-01-04 17:21:43 +0900
commitd0fefb76f8a1430c749e67bc72b4dba00c7143c9 (patch)
tree2cf2fe560e83fef19c9a99adcc5d2b2300145bfc /keyboard/infinity/mbed-infinity/README
parentc6e533ce83d6ae4393e6cdf1f6d39ffefc790115 (diff)
infinity: Add initial files for keyboard support
Diffstat (limited to 'keyboard/infinity/mbed-infinity/README')
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diff --git a/keyboard/infinity/mbed-infinity/README b/keyboard/infinity/mbed-infinity/README
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+mbed fix for Infinity
+=====================
+Without linker script patch it doesn't place vector table in final binary.
+And clock is configured to 48MHz using internal clock reference and FLL multiplication.
+
+
+mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/system_MK20D5.c
+ Fix SystemInit: clock setup for internal clock. Inifinity has no external Xtal.
+
+mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/cmsis_nvic.c
+ Fix NVIC vector address of firmware 0x1000 instead of 0x0
+
+mbed/targets/cmsis/TARGET_Freescale/TARGET_K20D50M/TOOLCHAIN_GCC_ARM/MK20D5.ld
+ Fix memory map for Infinity bootloader
+ Flash starts at 0x1000
+ No flash config bytes sector
+
+USBDevice/USBDevice/USBHAL_KL25Z.cpp
+ Fix USB clock setup, see below.
+
+
+2015/01/04 Based on mbed-sdk @2f63fa7d78a26.
+
+
+
+Kinetis USB config
+==================
+Clock source: Internal reference clock wth FLL
+ SIM_SOPT[USBSRC] = 1(MCGPLLCLK/MCGFLLCLK)
+ SIM_SOPT[PLLSEL] = 0(MCGFLLCLK)
+
+Clock dividor:
+ SIM_CLKDIV2[USBDIV] = 0
+ SIM_CLKDIV2[USBFAC] = 0
+
+Clock enable:
+ SIM_SCGC4[USBOTG] = 1
+
+