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@@ -111,4 +111,22 @@ R: 1K Ohm resistor
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## Arduino Micro's pin naming is confusing
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Note that Arduino Micro PCB marking is different from real AVR port name. D0 of Arduino Micro is not PD0, PD0 is D3. Check schematic yourself.
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-http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf
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+http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf
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+
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+
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+
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+## Bootloader jump doesn't work
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+Properly configure boot section size in Makefile. With wrong section size bootloader won't probably start with **Magic command** and **Boot Magic**.
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+- https://github.com/tmk/tmk_keyboard#magic-commands
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+- https://github.com/tmk/tmk_keyboard#bootloader
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+
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+```
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+# Boot Section Size in *bytes*
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+# Teensy halfKay 512
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+# Teensy++ halfKay 1024
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+# Atmel DFU loader 4096 (TMK Alt Controller)
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+# LUFA bootloader 4096
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+# USBaspLoader 2048
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+OPT_DEFS += -DBOOTLOADER_SIZE=4096
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+```
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+http://geekhack.org/index.php?topic=12047.msg1292018#msg1292018
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tmk