I have been busy refurbishing a couple of VIC pcbs recently ..and am down to my last 2 x UE12 901486-07 chips ROMs ..
In light of their scarcity ..Im wondering if I can clone such chips to Eprom..?
I have a UV Eraser and some random Eprom chips.
My question is ..
If this is possible ..
what programmer will recognise the roms (what device is the original rom ?) and copy the data to bin files ..
plus which eprom is a suitable replacement ?
any advice on this topic would be appreciated..
I presume the Char roms and Basic rom would also be posible using the same method..
???
rgds
VS
Cloning the ROMs ?
Moderator: Moderators
Re: Cloning the ROMs ?
Read all!
http://sleepingelephant.com/ipw-web/bul ... f=3&t=8320
http://sleepingelephant.com/ipw-web/bul ... =11&t=8434
http://sleepingelephant.com/ipw-web/bul ... f=3&t=8320
http://sleepingelephant.com/ipw-web/bul ... =11&t=8434
"Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." (Albert Einstein)
Re: Cloning the ROMs ?
Already had a programmed AM27C256 ..on a plug in header I made many years ago ...
took a chance the contents were indeed 901486-07 ...
Indeed they were ..so scraped clean a second AMBIOS 27C256 I had in the bits box ..and subjected it to the UV eraser strobe gun ..
All clean FFs ..
Popped it in tmy TL866 MiniPro ..and cloned the chip ..
I now have 2 ....
That was easy because I already had a dump of the Kernal ...
but how do I read ...the other Proms ..eg ..the Charset rom ?
I used to have a more advanced programmer back then ..
I wonder if the TL866 can read VIC proms ????
took a chance the contents were indeed 901486-07 ...
Indeed they were ..so scraped clean a second AMBIOS 27C256 I had in the bits box ..and subjected it to the UV eraser strobe gun ..
All clean FFs ..
Popped it in tmy TL866 MiniPro ..and cloned the chip ..
I now have 2 ....
That was easy because I already had a dump of the Kernal ...
but how do I read ...the other Proms ..eg ..the Charset rom ?
I used to have a more advanced programmer back then ..
I wonder if the TL866 can read VIC proms ????
Re: Cloning the ROMs ?
So ..I guess my problem now is how to dump the contents of a 2364 MOS rom ...?
Is there a modern USB type programmer/device with zif socket that can do this ?
If so ..please advise me ?
rgds
VS
Is there a modern USB type programmer/device with zif socket that can do this ?
If so ..please advise me ?
rgds
VS
Re: Cloning the ROMs ?
Rom images are already archived http://www.zimmers.net/anonftp/pub/cbm/ ... index.html
Adapters can be made to use 27xx http://ist.uwaterloo.ca/~schepers/sockets.html
Char rom: http://sleepingelephant.com/ipw-web/bul ... php?t=7058
Adapters can be made to use 27xx http://ist.uwaterloo.ca/~schepers/sockets.html
Char rom: http://sleepingelephant.com/ipw-web/bul ... php?t=7058
“In religion and politics people’s beliefs and convictions are in almost every case gotten at second-hand, and without examination... whose opinions about them were not worth a brass farthing.”
-Autobiography of Mark Twain
-Autobiography of Mark Twain
Re: Cloning the ROMs ?
Thanks for the links Norm ..
very useful indeed ..though I do feel Im cheating a little by not doing the job myself..lol
Then again ..why try and re-invent the wheel ?
very useful indeed ..though I do feel Im cheating a little by not doing the job myself..lol
Then again ..why try and re-invent the wheel ?
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Re: Cloning the ROMs ?
The pinout of the 2364 ROMs used in the VIC-20, 1541, C64 and all Commodore made VIC-20 cartridges is directly compatible with MCM68764 and MCM68766 EPROMs.ViperSan wrote:I wonder if the TL866 can read VIC proms ????
I have a BK Precision 866B with can read the old ROMs as well as program the above EPROMs. Unfortunately, I never had the privilege of dumping ROMs which had not previously been archived by someone else. I think the only ROM I provided to Zimmer's which was not already there is the BASIC V4 for the VIC-20 which I had sitting for more than 20 years on a floppy disk that was given to me in the late 80s.
Be normal.