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12p onto a 27c128??????
Posted: Tue Nov 06, 2018 12:52 pm
by nutbag355
as the title states, can i even split the nvram loaded with 12p (tuned) down to fit onto a 27c128? or have i gone an done a silly thing by tuning with 12p? i dont have access to a 27c256 or larger, its for a '808' v8
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 1:17 pm
by Charlescrown
Not as far as I know. It needs a 27C256. I just cut them off and solder in a 27C512 and use 8000 offset.
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 1:25 pm
by nutbag355
ok so given that i dont have access to any bigger chips, whats my options tuning wise, what file can i use and still be able to us rt tuning?
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 1:42 pm
by vlad01
none. you need a bigger prom
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 1:43 pm
by nutbag355
fml
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 1:49 pm
by nutbag355
and can i safely assume i cant just go to jaycar and buy a chip to solder in?
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 3:03 pm
by vlad01
I doubt it. they are often too slow to work and one time program only what you can get off the shelf and generally the ones you need only found as clones of obsolete 27c series proms
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 3:16 pm
by nutbag355
well looks like im scouring the internet and ebay for memcals tonight
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 4:30 pm
by delcowizzid
I just bought 50 more winbond w27c512 45ns eeproms off ebay cheap as chips
Re: 12p onto a 27c128??????
Posted: Tue Nov 06, 2018 5:09 pm
by delcowizzid
https://www.ebay.com/itm/10pcs-W27C512- ... %7Ciid%3A1
Second lot I've got through this guy I love not having to erase eprom anymore lol