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kurtjd / CHIPnGo Public

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A custom-built CHIP-8 hand-held gaming console powered by a STM32
microcontroller.

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MIT license
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CHIPnGo Build Guide Development Blog Features ToDo Limitations

README.md

 CHIPnGo

Current Status
[current_st]

Recently I've taken a serious interest in embedded development, so I
decided for my first project I would attempt to port my CHIP-8
emulator to a STM32 microcontroller in order to eventually build a
CHIP-8 hand-held gaming console. Since this is being done as a
learning experience, I also decided I would do this bare-metal with
no libraries and write all drivers from scratch. While this is
proving to be slow and extremely frustrating at times, it has also
been very insightful and I've already learned a ton in such a short
time.

See it in action!

 Build Guide

If you are interested in building your own CHIPnGo, check out this
guide.

 Development Blog

If you are interested in reading about my development of the project,
some challenges I faced, and the bone-headed design decisions I made
along the way due to my inexperience, check out my dev blog.

 Features

  * Fully supports all CHIP-8 and S-CHIP ROMs
  * LCD graphical display
  * Four directional buttons and two action buttons
  * Piezo buzzer for simple tone generation
  * SD card reader for quick loading of any CHIP-8 ROM
  * Battery power
  * Desktop application to manage ROMs on an SD card (aka game
    cartridge)

 ToDo

  * Improve startup menu for user to select ROM via SD card (make a
    bit more pretty)
  * Improve startup splash screen (want something cool and animated)
  * Iron out minor firmware bugs

 Limitations

Although my original emulator also has full support for XO-CHIP roms,
I decided to focus on just CHIP-8 and S-CHIP for now for several
reasons:

  * XO-CHIP ROMs expect up to 64kb of memory, as opposed to 4kb
    expected by original CHIP-8 ROMs.
  * XO-CHIP supports up to three colors, which would mean needing to
    move beyond a simple monochrome display.
  * XO-CHIP supports variable frequencies/tones whereas CHIP-8 ROMs
    can only produce a single frequency, which makes handling sound
    simple.

CHIP-8 supports 16 keys for input, however for design purposes, the
console only has 6 buttons. However, most games only use a few
buttons so this isn't too much of an issue.

About

A custom-built CHIP-8 hand-held gaming console powered by a STM32
microcontroller.

Topics

emulator microcontroller gaming chip-8 video-game stm32 bluepill 
game-console

Resources

Readme

License

MIT license

Stars

19 stars

Watchers

1 watching

Forks

0 forks

Languages

  * C 80.9%
  * Python 19.1%

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