ROM Simm Programmer

[dougg3]

I think I just figured out the commands not working properly too. How strange. Here's a test build of programmer software 2.0 with fixes for Windows 7. Just extract SIMMProgrammer2.0-win.zip, and replace its SIMMProgrammer.exe with this one.

 

[ymk]

@ymk Does 1.0.3 actually work if you click any buttons?

It does work. I was able to read one SIMM and write another.

I'll try your update.

 

[ymk]

The update works. It found the programmer immediately.

Reading and writing works. A read-back diff checks out, but my SE/30 won't boot from the 1.2mm SIMM. Probably a contact issue.

Thanks for the very quick fix!

 

[dougg3]

You’re welcome! I will look into releasing it as a new version 2.0.1 eventually.

Yeah, definitely sounds like a contact issue. The SE/30 sockets have always been flaky. I wish the PCB manufacturers had standardized on 1.27mm.

 

[DarthNvader]

It would be nice if someone took this project to Old World PPC Mac's. We have some software to modify the 4MB ROM Images, but no hardware to new ROM SIMMs to program.

I'd really like to do some custom ROM's for my Beige G3 starting with the v3 ROM for OF 2.4 support.

Moving on from that we could extract the USB packages from New Old ROM and add boot support for USB as a match to the class code of any USB card.

Just generally mess around with the ROMs.

We have DingusPPC emulator to test the ROM's to a high degree of satisfaction they won't burn our logic boards.

 

[DarthNvader]

It would be nice if someone took this project to Old World PPC Mac's. We have some software to modify the 4MB ROM Images, but no hardware to new ROM SIMMs to program.

I'd really like to do some custom ROM's for my Beige G3 starting with the v3 ROM for OF 2.4 support.

Moving on from that we could extract the USB packages from New Old ROM and add boot support for USB as a match to the class code of any USB card.

Just generally mess around with the ROMs.

We have DingusPPC emulator to test the ROM's to a high degree of satisfaction they won't burn our logic boards.

What, no love for PPC?

If you want to have a look that the PPC ROM collection internals, and you have brew and pip2 installed:

pip install tbxi

Then it's just tbxi dump or build.

Works on old world rooms( mostly ) and new world :tbxi's ( very well ).

A very useful tool for ROM hacking Elliot Nunn wrote for us!

 

[Jockelill]

It would be nice if someone took this project to Old World PPC Mac's. We have some software to modify the 4MB ROM Images, but no hardware to new ROM SIMMs to program.

I'd really like to do some custom ROM's for my Beige G3 starting with the v3 ROM for OF 2.4 support.

Moving on from that we could extract the USB packages from New Old ROM and add boot support for USB as a match to the class code of any USB card.

Just generally mess around with the ROMs.

We have DingusPPC emulator to test the ROM's to a high degree of satisfaction they won't burn our logic boards.

Should be possible to build an adapter and actually use the current programmer. So far my main issue has been sourcing that a lot connector for the PPC ROM.

 

[DarthNvader]

Should be possible to build an adapter and actually use the current programmer. So far my main issue has been sourcing that a lot connector for the PPC ROM.

I think the ROM SIMMs for the PM8600/9600 Kansas Boards and the Beige G3 are electronically the same.

Looks like pretty simple circuitry, if someone could work us up a custom clone board.

 

[Jockelill]

I think the ROM SIMMs for the PM8600/9600 Kansas Boards and the Beige G3 are electronically the same.

Looks like pretty simple circuitry, if someone could work us up a custom clone board.

The G3 has a special pinning and the biggest difference is that it a 3.3V machine. So ROM for those are completely different.