Amiga 1000 Kickstart Eproms/Roms

[Jeff]

I have 3 Amiga 1000's and one of them came to me with Kickstart 1.2 in Rom. Here is what the boot Roms look like. Did the dealer do this, or did it come from the factory like this? The labels look original to me.

Amiga 1000 Kickstart Roms

I would like to program a set of 1.3 Eproms for one of my other machines. Is this a simple ODD-EVEN Split with a byte swap (from a 256k binary file) between a pair of 27256 Eproms or is it more difficult than that?

What about 2.x or 3.x, I assume that would take additional hardware as it is a 512k Kickstart?  If so, has anyone here successfully built this hack?

I have the stuff to erase and program my own Eproms as well as legit originals of all the OS versions (see my photo album). It would be nice to retire my Kickstart floppies:-)

Thanks for any advice.
Jeff

[Jeff]

Thanks! I'll do some more checking and get back with the info. The thing is, it looks like the extra pair of Eproms that were added are in locations U2N and U2P and I think they are soldered in on my board (not sure why they didn't use sockets). I may not go to the trouble to remove them just to dump them. I'll probably just start with another motherboard and some blanks Eproms using Zac67's information and see if it works first. I know I won't fry anything if the data is programmed wrong the first time or two. Good thing I have a few 1000's:-)

@CLS2086
Good eyes! I hadn't even noticed the 2 jumpers.

Jeff

[Jeff]

@CLS2086
I pulled the jumpers at locations W2 and W4 and the machine won't boot (black screen), put them back in and it boots to a Workbench 1.2 prompt.

@DJBase
PM Sent for information about your adapter.

@Everyone
I guess the next step would be to pull the chips at locations U5N and U5P (since they are socketed) and see if they compare to the same chips in my other machine by reading them in to the eprom programmer. If they are the same and I can't find DJBases adapter, then I'll start working on some eproms for the empty locations in my other machines or build my own adapter.

Thanks,
Jeff

[Jeff]

@TJLazer
Thank You, looks like you were right!

@mark_k
I would like to read it. Let me know.

Thank You,
Jeff

BTW It looks like I may be purchasing the Amiga 1000 Kickstart adapter from DJBase.  I'll hold off a couple weeks and see if he makes some more. If that falls through then I'll continue on with the eproms.

[Jeff]

I purchased (2) of the A1000 Kickstart adapters from DJBase. The adapters are TOP quality as is DJBase's knowledge and tech support.  My 1000 is now happily running 3.1.

There are a couple of simple changes to the daughter board and motherboard needed to get the adapter working. Once done you will be glad you did it. It really is a slick kit and well worth the price and you NEED his instructions.

Thanks DJBase for all of your help!

Now if I could just add an IDE68K:-D

Jeff

@eroom
It looks like one of my 1000's probably has this kit installed. Thanks for solving the mystery. I bet that special PAL would be impossible to find these days even if you made the eproms.