[Coco] DriveWire issues with Coco 1 F/285 Board

[Torsten Dittel]

Gene Heskett <gheskett at ...> writes:

> > > ...just enough for the max. 9.6 kBaud (POKE 150,1) the CoCo was
> > > designed for... 

> Not really.  If you ever saw it on a scope, you would cringe in horror that 
> it even worked.

I must confess I've never seen the 9600 baud on a scope (I concluded from
the 10kHz bandwith you mentioned that it would a least reach the
corresponding voltage levels for each single bit, even if not having a rect
pulse shape). However, I have seen on a scope what was left at 31250 baud,
and that's why I can hardly imagine the 57600 baud working flawlessly for
*any* bit pattern output as Robert was reporting, but who knows how
"intelligent" modern serial interfaces are, maybe it is sampling the slew at
very high speed and reconstructing the original data by considering the
corresponding slew rates.

Regards,
Torsten