borgware-2d/README.md

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Borgware-2D
===========
Firmware for AVR based two-dimensional LED matrices, especially the
[Blinken Borgs](http://www.das-labor.org/wiki/Blinken_Borgs) from
[Das LABOR](http://das-labor.org/index.en.php).
Main platform is the [Borg16](http://www.das-labor.org/wiki/Borg16) construction
kit. Other supported platforms are the
[LED Brett](http://www.hackerspace-ffm.de/wiki/index.php?title=LedBrett)
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projector from [Hackerspace FFM](http://www.hackerspace-ffm.de), the
[ELO Ping-Pong Board](http://www.elo-web.de/elo/mikrocontroller-und-programmierung/ping-pong/das-franzis-pingpong)
or the [LoL Shield](http://jimmieprodgers.com/kits/lolshield/) from Jimmie P.
Rodgers.
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![Small Borg16](/doc/img/Borg16-small.jpg)
![Glow Lamp Borg](/doc/img/Glow_Lamp_Borg.jpg)
Animations
----------
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![Matrix](/doc/img/anim-matrix.png)
![Fire](/doc/img/anim-feuer.png)
![Scrolling Text](/doc/img/anim-scroll.png)
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[Animated GIF (3.5 MB)](/doc/img/borg_anim.gif)
Games
-----
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![Snake](/doc/img/game-snake.png)
![Tetris](/doc/img/game-tetris.png)
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* Tetris
* Classic: Standard Tetris Clone
* First Person Tetris: Rotate the bucket instead of the Tetromino.
* Bastet: Dices the worst the possible Tetromino the whole time.
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* Snake
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* Breakout
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* Space Invaders
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Build
=====
Supported build platforms are Linux, FreeBSD, NetBSD and Windows (via Cygwin).
Due to customized linker scripts, simulator support is currently limited to x86
and x86_64 archs. Following dependencies have to be met:
Linux / FreeBSD / NetBSD
------------------------
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Package names are based on Debian/Ubuntu repositories. Please adapt the names
according to your Linux distribution (or BSD for that matter).
* build-essential (pulls in an ordinary gcc build tool chain for the host)
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* bc
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* make (gmake on BSD)
* libncurses5-dev
* gcc-avr
* avr-libc
* binutils-avr
* avrdude
* freeglut3-dev
* bash (note to the BSD folks: bash is required for the config tool)
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Windows
-------
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* AVR GCC toolchain for Windows, choose your poison:
* [WinAVR](http://winavr.sourceforge.net)
* already includes [avrdude](http://www.nongnu.org/avrdude/)
* installer offers to add the toolchain to the system path
* straight forward download from SourceForge
* project abandoned in 2010, therefore heavily outdated (avr-gcc 4.3.3)
* [Atmel AVR Toolchain for Windows](http://www.atmel.com/tools/atmelavrtoolchainforwindows.aspx)
* actively maintained, therefore fairly up to date
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* homepage nags you with rather awkward registration process before download
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* you have to add the toolchain to the system path manually
* avrdude is not included (but it is possible to install WinAVR in parallel)
* [Cygwin(64)](http://www.cygwin.com/)
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* bc
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* make
* gcc-core
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* gdb (in case you want to debug your code in the simulator)
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* libncurses-devel (Cygwin)
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* libncursesw-devel (Cygwin64)
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* [libusb-win32](http://sourceforge.net/apps/trac/libusb-win32/wiki) in case you
want to use an USBasp programmer device with avrdude
Configure
---------
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Open a (Cygwin) terminal, change to your checkout directory and type:
> make menuconfig
In case you build on BSD, just use 'gmake' instead of 'make'. This starts an
Ncurses based text interface for configuring certain aspects of your target
platform. After a fresh checkout, the first thing you do is to load a profile
with sane defaults. In the menuconfig interface, select 'Load a Default
Configuration' and choose a preset. After hitting enter, the main menu returns
immediately. You can either tune your configuration or just exit (choose 'Yes'
at the confirmation dialog to save your stuff).
Be careful if you use an IDE like Eclipse to manage the build, as
integrated terminal emulators tend to choke on Ncurses generated output.
Make sure that 'make menuconfig' has been run at least once in an ordinary
terminal emulator after a fresh checkout or after issuing 'make mrproper'.
Note: Always use 'make clean' after changing something in the menu, because
subsequent builds may be broken if you don't.
Compile
-------
To build for the actual target platform, just type:
> make
This yields an 'image.hex' file which you can flash to your AVR device.
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If you want to test and debug your code within a GUI application, you can use
the simulator:
> make simulator
Again, use 'gmake' instead of 'make' on BSD.
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You can start the simulator by typing ./borgsim(.exe)
Simulator Handling
------------------
Please keep in mind that the simulator is NOT an emulator. All it does is
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compile the source code to a native host application so you can step through
your C-Code with an ordinary host debugger. The GUI thread reads the simulated
frame buffer every 20ms (40ms on Windows) and draws its contents.
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Joystick directions are simulated by the WASD keys and SPACE acts as the fire
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button. The OpenGL based simulator (Linux/BSD) enables you to adjust the
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viewing angle of the LED matrix via the arrow keys (not available on Windows).