Tony Duell wrote:
That
doesn't always work. luckily, there's one every year pretty nearby.
That's where I got my Tandy 1000 with 4 LPT ports (I don't know how they
all work, but they do, and I'm not gonna touch 'em). I was planning on
using it as the controller, and hooking up printer guts and making it work
by sending line feeds and spaces, and things like through BASIC.
Can I recomend that you grab the parallel port FAQ off the web. Those
printer ports are really 12 output lines and 4 input lines each. You can
do all sorts of neat stuff with those. Like _directly_ control the
stepper motors (or use some simple stepper control ICs). Hook up
switches/sensors. You can do that from BASIC, but I think you have to be
running MS-DOS and not Windows (cetainly not 95 or NT), since that tends
to get in the way of direct port access.
He won't have that problem. While I _think_ there might have been a
final member of the Tandy 1000 line with a 386, the usual CPU in a
Tandy 1000 is an 8088 (and my TL/2 has a 286, but only an 8-bit bus).
Windows is _not_ an option except maybe 1.x (2.x with a 286), and it
needs a CGA screen driver (preferably with knowledge of the PC Jr.
video modes). So I think we're safe to assume BASIC under MS-DOS.
--
Ward Griffiths <mailto:gram@cnct.com> <http://www.cnct.com/home/gram/>
When I was crossing the border into Canada, they asked me if I had any
firearms with me. I said "Well, what do you need?" -- Steven Wright