mirror of https://github.com/raphnet/4nes4snes
76 lines
2.3 KiB
Plaintext
76 lines
2.3 KiB
Plaintext
This is 4nes3snes Readme.txt file.
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Table of contents:
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1) What is 4nes3snes?
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2) USB Implementation
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3) Compilation and installation
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4) License
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5) About the vendor id/product id pair:
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6) Where do I get more information and updates?
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1) What is 4nes3snes?
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--------------------
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4nes3snes if a firmware for Atmel ATmega8 which
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allows one to connect NES and SNES controllers to
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a PC using a single circuit. Here are the possible
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combinations:
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- 4 NES controllers
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- 3 SNES controllers
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- 2 SNES controllers + 2 NES controllers
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- 1 SNES controller + 3 NES controllers
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The device connects to an USB port and appears to the
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PC as standard HID joystick with 4 axes and 32 buttons.
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The two first controllers get their D-PADs mapped to a
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pair of axes. The remaining controllers D-PADs
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are mapped to ordinary buttons.
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2) USB Implementation
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------------------
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4nes3snes uses the software-only usb driver from Objective Development.
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See http://www.obdev.at/products/avrusb/index.html
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A good portion of 4nes3snes is based on Objective Development's
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HIDKeys example.
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3) Compilation and installation
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----------------------------
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First, you must compile it. To compile, you need a working avr-gcc and
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avr-libc. Under linux or cygwin, simply type make in the project directory.
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(assuming avr-gcc is in your path).
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Next, you must upload the generated file (main.hex) to the Atmega8 using
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whatever tools you like. Personally, I use uisp. The 'flash' and 'fuse'
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targets in the makefile is a good example about how to use it.
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The Atmega fuse bits must also be set properly. The idea behind this is to
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enable the external 12mhz crystal instead of the internal clock. Check the
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makefile for good fuse bytes values.
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4) License
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-------
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4nes3snes is released under Objective Development's extended GPL
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license. See License.txt
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5) About the vendor id/product id pair:
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------------------------------------
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Please dont re-use them for other projects. Instead,
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obtain your own. I got mine from mecanique:
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http://www.mecanique.co.uk/products/usb/pid.html
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6) Where do I get more information and updates?
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--------------------------------------------
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Visit 4nes3snes page:
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http://www.raphnet.net/electronique/4nes_3snes/index_en.php
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you may also contact me by email:
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Raphael Assenat <raph@raphnet.net>
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