Firmware for Mac ROM SIMM programmer
Go to file
Doug Brown a7fe6d9b39 Add utility function for determining the AVR model
This is needed in order to handle slightly different functionality
between the AT90USB64x and AT90USB128x.
2023-05-28 19:34:02 -07:00
.settings Fix line endings 2023-05-28 19:34:02 -07:00
drivers Fix line endings 2023-05-28 19:34:02 -07:00
hal Add utility function for determining the AVR model 2023-05-28 19:34:02 -07:00
tests Fix line endings 2023-05-28 19:34:02 -07:00
.cproject Fix line endings 2023-05-28 19:34:02 -07:00
.gitignore Ignore local settings files. Get project compiling on my computer. 2020-11-27 00:16:35 -08:00
.project Fix line endings 2023-05-28 19:34:02 -07:00
chip_id.h Fix line endings 2023-05-28 19:34:02 -07:00
led.h Fix line endings 2023-05-28 19:34:02 -07:00
LICENSE.txt Fix line endings 2023-05-28 19:34:02 -07:00
main.c Fix line endings 2023-05-28 19:34:02 -07:00
programmer_protocol.h Fix line endings 2023-05-28 19:34:02 -07:00
README.md Update README.md 2020-11-26 23:41:14 -08:00
simm_programmer.c Break out bootloader entry into HAL 2023-05-28 19:34:02 -07:00
simm_programmer.h Fix line endings 2023-05-28 19:34:02 -07:00
SIMMProgrammer-AVRStudio.atsln Added AVR Studio project file for SIMM Programmer firmware 2016-04-25 13:48:59 -07:00
SIMMProgrammer-AVRStudio.cproj Added AVR Studio project file for SIMM Programmer firmware 2016-04-25 13:48:59 -07:00
util.h Fix line endings 2023-05-28 19:34:02 -07:00

Description

This project is a bootloader and firmware for a Macintosh ROM SIMM programmer, along with control software for Mac OS X, Windows, and Linux. The ROM SIMM is compatible with the SE/30, all II-series Macs with a 64-pin SIMM socket (should include the IIx, IIcx, IIci, IIfx, and IIsi), and the Quadra 700.

This particular repository contains the main firmware that runs on the programmer board. The current compiler version used with this project is avr-gcc 4.8.2. Using a different version of gcc may result in worse performance due to some very tight optimization performed on this project to decrease programming time.

Downloads

Binary downloads (originally from Google Code) can be found at https://github.com/dougg3/mac-rom-simm-programmer/tree/downloads/downloads

Repositories

The project is spread over a few repositories. Some of them have a wiki.

Repository Repository location Wiki location
Programmer Firmware (AVR microcontroller) https://github.com/dougg3/mac-rom-simm-programmer https://github.com/dougg3/mac-rom-simm-programmer/wiki
Bootloader (AVR microcontroller) https://github.com/dougg3/mac-rom-simm-programmer.bootloader
Programmer Software (Windows/Mac/Linux) https://github.com/dougg3/mac-rom-simm-programmer.software none
Windows Driver (.inf file, not needed on Windows 10) https://github.com/dougg3/mac-rom-simm-programmer.windriver none
Custom QextSerialPort for Programmer Software https://github.com/dougg3/doug-qextserialport-linuxnotifications none
QextSerialPort base https://github.com/qextserialport/qextserialport https://github.com/qextserialport/qextserialport/blob/wiki/Welcome.md
CAD for programmer, along with 2 MB and 8 MB SIMM PCBs https://github.com/dougg3/mac-rom-simm-programmer.cad none
Mac ROM patcher https://github.com/jpluimers/macrompatcher/ (from https://code.google.com/p/macrompatcher) none

Videos

ROM SIMM

What Where
IIci booting from ROM disk https://www.youtube.com/watch?v=SEFcQRmYtBI
Mac IIci Modified (Slower) Startup Chime https://www.youtube.com/watch?v=lyIIRtR3Aw0
Playing with IIci ROM - other death chimes https://www.youtube.com/watch?v=mlmt1AealLo
Mac IIci with a newer Mac's startup chime https://www.youtube.com/watch?v=bRJtMMYCf0E
Mac IIci with Super Mario Bros startup chime! https://www.youtube.com/watch?v=omL7mx0zxvI
Mac IIci Mario Startup Chime Part 2 -- Long! https://www.youtube.com/watch?v=Yen0omvBo2Y
Mac IIci - Another Custom Startup Chime https://www.youtube.com/watch?v=1R4W3mApAio

Regular ROM

Mac IIci ROM hack (custom startup icons): https://www.youtube.com/watch?v=LALaYy7ZLy0

Related articles

Blog posts

Others

Non-related articles