[Coco] DRAGON TANO Arrived

Phill Harvey-Smith afra at aurigae.demon.co.uk
Mon Oct 1 13:55:44 EDT 2012


On 01/10/2012 18:03, Ken H. wrote:
> Phill
> Could you share with us the design of a dragon parallel to coco-bit banger
> converter circuit?
> Schematics for this converter could be really useful as it would allow the
> Dragon to use drivewire (at least under Nitros9)

Well not so much a design, just an observation that the I/O lines from 
the PIA that the bit-banger uses are available on the Dragon's Parallel 
printer port. I guess youd need a level shifter circuit, something like 
a MAX232 or MAX202 to generate proper RS232 levels, but should be doable.

If I get a few minutes later I'll see if I can design something.

Cheers.

Phill.

-- 
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !

"You can twist perceptions, but reality won't budge" -- Rush.



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