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Author Topic: Looking for a ROM chip to be programmed  (Read 1249 times)

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Scottacus

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Looking for a ROM chip to be programmed
« on: March 07, 2015, 10:26:46 am »
I have a spare set of Gorf boards that I'd like to get up and running and one of the boards that is bad is a RAM board.  There is a hex file that can be loaded onto a 2532 EPROM chip and when run on the arcade game, this will give the location of the first bad RAM chip.  I have a PICKit 3 microprocessor programmer but unfortunately MPLAB will not program arcade ROMS and I don't want to buy a universal programmer and UV eraser to reprogram just one chip.

Is there anyone out there with a spare 2532 EPROM in their junk pile and programmer who would be willing to write this file to the ROM?  I will be happy to pay for shipping and will return the ROM once the trouble shoot is done.

The bin file is located here: http://www.ionpool.net/arcade/tech/gorftest.zip

The read me says:

"The included binary image should be padded with 0xffs and may be burned
into a 2716/2732/2532 depending on how your rom board is configured."

The hex file goes up to memory location 000016F and I don't know how much memory one of these ROMs has so I assume that the UV light erase sets the rest of the memory locations to hFF?

Thanks to anyone who can help out here!

Malenko

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Re: Looking for a ROM chip to be programmed
« Reply #1 on: March 07, 2015, 07:17:11 pm »
I think I saw this request over at KLOV and that you didnt wanna pay what hobbyroms.com was asking, so maybe try MK3Fan / Zenomorph?
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Scottacus

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Re: Looking for a ROM chip to be programmed
« Reply #2 on: March 07, 2015, 09:18:44 pm »
No this is a new project for me, I didn't know about Hobbyroms. 

Malenko

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Re: Looking for a ROM chip to be programmed
« Reply #3 on: March 07, 2015, 09:57:02 pm »
oh, well contact steph at hobbyroms.com   he's awesome and will have what you need.
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Scottacus

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Re: Looking for a ROM chip to be programmed
« Reply #4 on: March 07, 2015, 10:04:32 pm »
I did just after I got your first post, thanks!

Scottacus

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Re: Looking for a ROM chip to be programmed
« Reply #5 on: March 07, 2015, 11:09:16 pm »
Thanks again Malenko, Steph will get me a chip, program it and mail it for $15. 

Malenko

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Re: Looking for a ROM chip to be programmed
« Reply #6 on: March 07, 2015, 11:23:45 pm »
glad you got what you needed
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Scottacus

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Re: Looking for a ROM chip to be programmed
« Reply #7 on: March 15, 2015, 02:46:14 pm »
The ROM chip came in the mail yesterday and I got a chance to try it out today.  It worked perfectly so hats off to Step for programming the chip and to Mark Spaeth for writing the diagnostic program!

See here http://forum.arcadecontrols.com/index.php/topic,144471.0.html for details.