when i have to use bigger eproms than i need, i normally just make a file with two(or more) copies using the linux 'cat' command. that way i don't need to worry about the extra data lines.if you have to go out and buy them then get 27C512, if you have them lying around use 27c1010.if you're feeling brave you could take the old ones out of your s1100 and use them.On 30 January 2016 at 00:20, Unkle Belzrebuth belzrebuth.s@... [akaiS1000S1100Samplers] <akaiS1000S1100Samplers@yahoogroups.com> wrote:So for my S1100 should I go with 27c512 or 27c1010?!
On Jan 29, 2016 6:15 PM, "Ewan Colsell ewanuno@... [akaiS1000S1100Samplers]" <akaiS1000S1100Samplers@yahoogroups.com> wrote:
>
>
>
> for my s1000 I used 27c512 eproms pulled from junk electronics from
> the flea market. you can find them on ebay too.
>
> On 29/01/2016, deanolium@... [akaiS1000S1100Samplers]
>
> <akaiS1000S1100Samplers@...m> wrote:
> > I've just done this myself, and there9;s one gotcha. Assuming you use 1Mb
> > chips, the rom file has to be burned onto the upper 512kb of both chips.
> > This is because, despite using 1Mb chips, Akai only uses the upper 512kb and
> > the highest address line is held high.
> >
> > It does also mean that you can use a 512kb eprom instead of a 1Mb - though
> > the prices of both nowadays are pretty comparable.
> >
> > Hope that helps!
>
> --
> http://www.ewancolsell.com/
>
>
Message
Re: [akaiS1000S1100Samplers] Re: Akai S1100 4.3 OS Version EPROM images
2016-01-30 by Ewan Colsell
you can use them interchangably, no problem nothing will break.. i imagine that akai used the bigger chip because they were cheaper at the time, or maybe the couldn't get the 27c512 chips.
better to write the contents into both the upper and lower part of the chips. harder to mess up that way!On 30 January 2016 at 01:23, Ewan Colsell <ewanuno@...> wrote: