This code is for board versions 1.*

1. Install the Arduino IDE (See www.arduino.cc)

2. Copy the content of the folder bootloaders into

   • Windows: <Arduino Installation>/hardware/arduino/avr/bootloaders/
   • Mac OS X: /Applications/Arduino.app/Contents/java/hardware/arduino/avr/bootloaders/

3. Copy the folder mega32 to

   • Windows: <Arduino Installation>/hardware/arduino/avr/variants
   • Mac OS X: /Applications/Arduino.app/Contents/java/hardware/arduino/avr/variants

4. Append the following text to

   • Windows: <Arduino Installation>/hardware/arduino/avr/boards.txt
   • Mac OS X: /Applications/Arduino.app/Contents/java/hardware/arduino/avr/boards.txt

   ledcube.name=LEDcube
   ledcube.build.mcu=atmega8
   ledcube.build.f_cpu=14745600L
   ledcube.build.core=arduino
   ledcube.upload.tool=avrdude
   ledcube.upload.protocol=arduino
   ledcube.upload.speed=19200
   ledcube.bootloader.tool=avrdude
   ledcube.bootloader.unlock_bits=0x3F
   ledcube.bootloader.lock_bits=0x0F
   
   ledcube.menu.cpu.atmega8=ATmega8 (4x4x4)
   ledcube.menu.cpu.atmega8.upload.maximum_size=7168
   ledcube.menu.cpu.atmega8.upload.maximum_data_size=1024
   ledcube.menu.cpu.atmega8.build.mcu=atmega8
   ledcube.menu.cpu.atmega8.build.variant=standard
   ledcube.menu.cpu.atmega8.build.board=X4
   ledcube.menu.cpu.atmega8.bootloader.low_fuses=0x3f
   ledcube.menu.cpu.atmega8.bootloader.high_fuses=0xca
   ledcube.menu.cpu.atmega8.bootloader.file=atmega8/ATmegaBOOT_14MHz.hex
   
   ledcube.menu.cpu.atmega32=ATmega32 (8x8x8)
   ledcube.menu.cpu.atmega32.upload.maximum_size=30720
   ledcube.menu.cpu.atmega32.upload.maximum_data_size=2048
   ledcube.menu.cpu.atmega32.build.mcu=atmega32
   ledcube.menu.cpu.atmega32.build.variant=mega32
   ledcube.menu.cpu.atmega32.build.board=X8
   ledcube.menu.cpu.atmega32.bootloader.low_fuses=0x3f
   ledcube.menu.cpu.atmega32.bootloader.high_fuses=0xca
   ledcube.menu.cpu.atmega32.bootloader.file=atmega/ATmegaBOOT_168_atmega32_14MHz.hex
   

5. Fix Serial library for ATmega32. Open

   • Windows: <Arduino Installation>/hardware/arduino/avr/cores/arduino/HardwareSerial.cpp
   • Mac OS X: /Applications/Arduino.app/Contents/java/hardware/arduino/avr/cores/arduino/HardwareSerial.cpp

   Replace:

   #if defined(__AVR_ATmega8__)
      config |= 0x80; // select UCSRC register (shared with UBRRH) 
   #endif
   

   With:

   #if defined(__AVR_ATmega8__) || defined(__AVR_ATmega32__) || defined(__AVR_ATmega16__)
      config |= 0x80; // select UCSRC register (shared with UBRRH) 
   #endif
   

The MIT License (MIT)

Copyright (c) 2016 Sandro Lutz

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.