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'[PIC]: Pic driving a pc monitor.'
2004\09\01@105142 by Massimo Gaggero

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Hi all,
   I have an old PC monitor and I was wondering if was possible to make
something with it and PIC.
In your experience, it is possible to drive a PC monitor by A Pic also
only in text mode to write something in it?
Someone knows where I can find information about this question?

Thanks,
   Massimo.

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2004\09\01@113923 by Alan B. Pearce

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>I have an old PC monitor and I was wondering if
>was possible to make something with it and PIC.

If it is a CGA or EGA, then quite possibly. If it is VGA then it will be
harder. I say a VGA will be harder as it has a faster scan frequency than
CGA or EGA.

A starting point to try something would be the Pong project at
http://dt.prohosting.com/pic/pong.html

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2004\09\01@124343 by Jan-Erik Soderholm

face picon face
Massimo Gaggero write :

> Hi all,
> I have an old PC monitor and I was wondering if was
> possible to make something with it and PIC.

I'd say that it would be hard to do any useful. What do you
have in mind with "to make something" ?

> In your experience, it is possible to drive a PC monitor by A
> Pic also only in text mode to write something in it?

A PC monitor doesn't have any "text mode". That screen needs
some video card or similar to produce anything reasonable.

If you'd like a "screen" to write characters to, get a used "VT"
compatible or emulating async terminal. The best are of course
the original VT screens from Digital Equipment Corp (DEC), such as
the VT100 to the VT520. They can be found quite sheap today.

Alan B. Pearce wrote :

> A starting point to try something would be the Pong project at
> http://dt.prohosting.com/pic/pong.html

Nice project, but it produce NTSC (or "US TV") video signal,
probably a long way from a video signal for a CGA/EGA/VGA
screen, not ?

Regards,
Jan-Erik.
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2004\09\01@125513 by Josh Koffman

face picon face
Another option might be to not use _just_ a PIC, but a PIC _and_ an
old computer. Older PI and PII laptops are fairly cheap nowadays, even
moreso if their screens are broken. Plus they run fairly quietly. I
have a few around just to use as user interfaces to various things.
The PIC does all the work, with the computer (and monitor) acting
mainly as a dumb terminal. Get a cheap DOS terminal emulator, plop
that on a sys'ed floppy drive, and you don't have to deal with hard
drive noise either.

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
       -Douglas Adams

On Wed, 1 Sep 2004 16:41:02 +0100, Alan B. Pearce <spam_OUTa.b.pearceTakeThisOuTspamrl.ac.uk> wrote:
> >I have an old PC monitor and I was wondering if
> >was possible to make something with it and PIC.
>
> If it is a CGA or EGA, then quite possibly. If it is VGA then it will be
> harder. I say a VGA will be harder as it has a faster scan frequency than
> CGA or EGA.
>
> A starting point to try something would be the Pong project at
> http://dt.prohosting.com/pic/pong.html
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2004\09\01@130555 by William Couture

picon face

>--- Original Message ---
>From: Massimo Gaggero <.....maxKILLspamspam@spam@crs4.it>
>Date: 9/1/04 9:51:32 AM
>
>I have an old PC monitor and I was wondering if was
>possible to make something with it and PIC.
>In your experience, it is possible to drive a PC monitor
>by A Pic also only in text mode to write something in it?

Check out
yusoft.kulichki.com/english/pic/my_proj.htm
for something to start with, at least.

Bill



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2004\09\01@131700 by William Couture

picon face

>--- Original Message ---
>From: "Alan B. Pearce" <A.B.PearcespamKILLspamrl.ac.uk>
>Date: 9/1/04 10:41:02 AM
>
>A starting point to try something would be the Pong
>project at http://dt.prohosting.com/pic/pong.html

There are a couple of "pong" projects out there, and
tetris as well.  Check out

http://www.rickard.gunee.com/projects/

Also, check out

http://www.brouhaha.com/~eric/pic/pictock.html

for a PIC-based video clock.

All of these are for TV's not VGA, though.

Bill



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2004\09\01@132536 by Dan Smith

face picon face
On Wed, 01 Sep 2004 16:51:32 +0200, Massimo Gaggero <.....maxKILLspamspam.....crs4.it> wrote:
> Hi all,
>    I have an old PC monitor and I was wondering if was possible to make
> something with it and PIC.
> In your experience, it is possible to drive a PC monitor by A Pic also
> only in text mode to write something in it?

Robert Lacoste won a Circuit Cellar contest a few years ago with a
design featuring a 17C756 driving a VGA display.  It was a basic
spectrum analyser and displayed both text and graphics if I recall.  A
quick Google turns up
http://www.circuitcellar.com/pastissues/articles/Laco98/article.htm

Dan
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2004\09\01@135003 by Michael Park

picon face
PIC driving VGA:
http://webpages.charter.net/greener/electronics/video1/



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2004\09\02@034750 by Alan B. Pearce
2004\09\02@052237 by Russell McMahon
2004\09\03@004849 by Ryan Underwood
2004\09\03@035123 by hael Rigby-Jones
2004\09\03@035609 by Alan B. Pearce
2004\09\03@045544 by William Chops Westfield
2004\09\03@055101 by Massimo Gaggero
2004\09\03@061433 by Alan B. Pearce
2004\09\03@065034 by Roland
2004\09\03@095054 by Herbert Graf
2004\09\04@044144 by Peter L. Peres
2004\09\04@044149 by Peter L. Peres
2004\09\04@044153 by Peter L. Peres
2004\09\04@114519 by Herbert Graf

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