Re: How do I add firmware to a card?

["RedskullDC" <RDC@oz.org>]

Hi Again Tristan,

"Tristan Mumford" <xtristan.xmumford@xgmail.xcom> wrote in message 
news:459b763f$0$38173$c30e37c6@lon-reader.news.telstra.net...
>
> I can get pretreated boards. I think I saw them in Jaycar. But i think 
> they
> have been sitting in light for a very long time. I have less than total
> faith in their protective coating.
>
> Why is everything so hard to get here?

I gave up making my own boards a few years ago. Modern chips are
just too small (for my rapidly ageing eyes hehe) to see to solder.

Places like:
http://www.expresspcb.com/
Will make boards to your design, relatively cheaply, no fuss, no mess,
software is free to download, yada yada.

>
> On one final note, let's say I wanted to put an EPROM or whatever on the
> card for firmware. How much extra work is required to do that for the ][
> based design? I'm not really concerned about writing to it etc. Just a
> simple thing that will (with correct firmware) work with a PR#n

Easy as pie.
Take a look at:
http://redskulldc.50megs.com/Flashrom/Flashrom.html

Circuit is there to show how an eprom (in this case a Flash rom)
can be interfaced to the Apple bus.
This example has the rom appear at the $CN00-CNFF space.
Getting it to appear in the communal $C800-$CFFF space isn't much
more difficult.

Red.

p.s thanks for the +ve rap. Thought I recognised your name from somewhere
else (Amiga territory).