https://github.com/defparam/21fx

A bootloader for the SNES console
https://github.com/defparam/21fx

Last synced: about 2 months ago
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A bootloader for the SNES console

• Host: GitHub
• URL: https://github.com/defparam/21fx
• Owner: defparam
• License: gpl-3.0
• Created: 2015-08-26T04:32:41.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2016-11-03T20:41:49.000Z (about 8 years ago)
• Last Synced: 2024-11-09T14:40:38.248Z (2 months ago)
• Language: Verilog
• Homepage:
• Size: 22.5 MB
• Stars: 55
• Watchers: 12
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        


# 21FX - An SNES Primary Bootloader (formerly SNES-Hook) 

This project includes Altium and verilog design files for an SNES CPLD 

expansion port to perform a simple reset hijacking and present a primary 

bootloader for the SNES to use. The bootloader is intended to be used in

conjunction with byuu's Controller Port Serial Cable for uploading

executable code into WRAM.

Updates

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4/14/2016 - REV C boards back and tested working. The boards now conform

to the new SNES expansion bridge DB-25 connector. byuu has produced the IPLROM

which is programmed to the EEPROM. Couple of issues with some power off noise

to the 232H but nothing serious

21FX - Rev C (Full Release)

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In this release we have changed the entire form factor of the board.

The board now conforms to a DB-25 connector and will mate to the new

SNES expansion bridge. We have also kept the same size CPLD and decided

to keep the IPLROM on a separate microchip 5v parallel eeprom chip. Lastly

the project no longer targets byuu's USART board. It instead has the connector

footprint for the Adafruit FT232H USB transceiver board. The IPLROM targets

all back and forth communication through this device.

SNES-Hook v1.1 REV B (Full Release)

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Updated top verilog file to include 2 more force/glitch outputs for

providing extra current strength on the glitched lines.

SNES-Hook v1.0 (Full Release)

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This a preliminary full release of SNES-Hook. In the release is the 

verilog files, Altium board design files and the quartus project which 

targets the MAX7000S CPLD on the SNES-Hook board.

@defparam