[Coco] ROM Development question

Louis Ciotti lciotti1 at gmail.com
Wed Mar 11 21:06:20 EDT 2015


Thanks guys... I have a uv eraser already, picked it up from an co-worker
when he reitered and cleaned out his desk, have not tried it yet, but it
should work , looks barely used.  An emulator would be nice, but I suppose
that those would have to be specific to the circuit used.  I wish I got
into this stuff 30 years agowhen I had gotten my coco, it would be easier
for me to learn!



On Wed, Mar 11, 2015 at 8:53 PM, Bill Nobel <b_nobel at hotmail.com> wrote:

> I’ve also got the same programmer coming (paid $55, but oh well Lou..)  I
> also went to the extent of getting a eprom eraser as well ($14 from China)
> does 8 chips @ once.  I have used a few different programmers in my past.
> You just need the raw image (either extracted from a real 1, or asm build)
> I compiled Grants rom with as9 and haven’t been able to try on this burner
> (as I’m waiting for shipping)  There is also another rom image & circuit to
> try as well
>
> http://www.8bitforce.com/simon6809/ <http://www.8bitforce.com/simon6809/>
>
> Another version of 6809 sbc, but uses smaller rom image (no basic, monitor
> only), and slightly different base 6 chip design (before rs232 connection)
> it has a slightly more controllable memory map vs Grants base.
>
> Bill Nobel
>
> > On Mar 11, 2015, at 5:15 PM, Christopher Barnett Fox <cbfox01 at syr.edu>
> wrote:
> >
> > Lou,
> >
> > I picked up a MiniPro TL866CS from a Chinese seller on eBay for $40
> shipped. It seems to be a great little programmer. The included software is
> Windows-only. I'm using ST M27C128-10F1 EPROMs, also purchased off eBay.
> Two sleeves of five for $17 total, shipped. I've successfully burned a
> custom ADOS-3 ROM for use in a Disto Mini Controller that includes a socket
> for a 28-pin EPROM.
> >
> > Christopher
> >
> >
> >
> >
> >
> >
> > On 2015/03/11/, 7:03 PM, "Lou Ciotti" <lciotti1 at gmail.com> wrote:
> >
> >> Reading the posts about Kips SBC, has me wondering about how one
> >> develops the ROM image for use on an SBC like Kips/Grants.  If I were
> >> starting from scratch and going through many many iterations I would
> >> hate to have to burn/erase/burn/erase an EPROM.  I guess an EEPROM would
> >> work, but that requires you to extract, program, insert, extract,
> >> program, insert... etc...   Is there a better way?  I suppose that using
> >> an emulator might work, but are the ROM images exactly the same as what
> >> is used to program an (E)EPROM.  Excuse my ignorance on this as I have
> >> never dealt with (E)EPROMS, but I want to.
> >>
> >> Speaking of programming EEPROMS, what is a good low cost one, I think
> >> someone just mentioned this, and I feel like I have asked this before
> lol.
> >>
> >> Lou
> >>
> >>
> >> --
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> >>
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> >
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