5 Apr
2002
5 Apr
'02
4:58 a.m.
> > Something like the CMU Free6809 board would
be great, but I'd
> > prefer to add a CRT coltroller to get a video display. I'd
> > also want a keyboard interface so that the machine could
> > be independent of a terminal. Maybe even a disk interface
> > of some sort, and the AY-3-8910 sound chip, and a parallel
> > port, and... Oh dear, now I'm making it too complicated!
> My SWTP/c contains a third-party board called
"the communicator" with a 6845
> CRTC. Complexity is low : 6845, 2K sram, character generator and around 10 TTL
> IC's. It produces a standard 80x25 output.
> The same board also contains a 6821 to interface to a parallel ouput keyboard.
> The floppy interface of the SWTPc is also rather simple.
Speaking of 6800 components:
Does anybody still have a 6829 datasheet ?
Gruss
H.
--
VCF Europa 3.0 am 27./28. April 2002 in Muenchen
http://www.vcfe.org/