[Coco] How to detect a CoCo 1 vs a CoCo 2 in software.
davidwladd at gmail.com
Mon Aug 22 21:54:47 EDT 2016
Is there a way to replace/upgrade the OP Amp so you can run at a faster
On Mon, Aug 22, 2016 at 2:20 AM, Barry Nelson <
barry.nelson at amobiledevice.com> wrote:
> The slower OP amp is EXACTLY why I want to detect the CoCo 1 or 2 in
> software. I am trying to come up with code that will load the correct
> version of a DriveWire ROM for a CoCo 1, 2 or 3 by auto detecting the CoCo
> model and loading the proper code. A CoCo 1 must run at 38400 baud, a CoCo
> 2 can run at 57600, and a CoCo 3 can run at 115200 baud.
> > Gene Heskett gheskett at shentel.net
> > Sun Aug 21 23:15:41 EDT 2016
> > On Sunday 21 August 2016 22:37:00 Arthur Flexser wrote:
> > > Since one Basic ROM version can be replaced with another, no test
> > > based on ROM contents would be totally reliable in distinguishing what
> > > model CoCo you had.
> > >
> > True Art. But if that rom has been replaced, is not the old grey ghost
> > then functionally a coco2? Minor hardware diffs of course, like the
> > slower speed of the op-amp in the bit-banger, but will this code be able
> > to tell the diff and mis-behave? How the game plays is of course the
> > final answer.
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