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Old 14 October 2018, 19:55   #1
source
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Burning new 3.1.4 rom

I just purchased os3. 1.4 and I want to make a room for my 500. I don't have an eprom burner. I was wondering if anyone here would be able to direct me to a cheap burner as well what eprom I need for the a500. Thanks
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Old 14 October 2018, 20:07   #2
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The chip you need is a 27c400 and a suitable programmer could be something from mcumall or perhaps some wellon programmer that supports that part.
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Old 14 October 2018, 20:45   #3
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I would suggest a TL866 programmer - you can find them on ebay.
Then you need an adapter like this one: https://www.ebay.co.uk/itm/292737973186

I got my setup for less than £60 all in.
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Old 14 October 2018, 21:29   #4
source
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Thanks for the response. I am seeing tk866ii and tl866cs burner does it matter or does it have to be a tl866? Thanks
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Old 14 October 2018, 22:03   #5
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Quote:
Originally Posted by source View Post
Thanks for the response. I am seeing tk866ii and tl866cs burner does it matter or does it have to be a tl866? Thanks
As long as it's a TL866 you should be fine, the letters after relate to features not needed for burning 27c400 EPROMS. Mine is the most basic variant, TL866CS.
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Old 15 October 2018, 05:35   #6
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I believe that if you use any of the TL866 models, that you will also need an adapter. The TL866 doesn't support the 27c400. I have an adapter that makes the 27c400 look like a 27c4096, which is supported.
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Old 15 October 2018, 21:41   #7
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I use a GQ-4X which I really like.
https://www.amazon.co.uk/PRG-112-uni.../dp/B01212KD74

£89 (about $120) including 27c400 adapter. Not cheap but maybe it gives you an idea.
(Doesn't support GALs which is a bit annoying).
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Old 16 October 2018, 14:26   #8
source
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This maybe a dumb question what is the difference between gal's and eprom
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Old 16 October 2018, 14:31   #9
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GALs are logic devices that can have their function erased and reprogrammed, and are sometimes used for things like address decoding and other similar functions. An EPROM is a ROM (as in, Read-Only Memory) that can be erased and reprogrammed. It generally won't do any logic stuff itself, instead being used for storing information (semi-)permanently.
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Old 16 October 2018, 17:51   #10
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Source If you have the EEPROM already I can Program it for you, i'm inb Richmond Hill so not too far away from you.

Shaf
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