Post by thread:[PIC]: Pic driving a pc monitor.

'[PIC]: Pic driving a pc monitor.'

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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>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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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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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.pearceTakeThisOuTrl.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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>--- Original Message ---

>From: Massimo Gaggero <.....maxKILLspam@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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>--- Original Message ---

>From: "Alan B. Pearce" <A.B.PearceKILLspamrl.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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On Wed, 01 Sep 2004 16:51:32 +0200, Massimo Gaggero <.....maxKILLspam.....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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PIC driving VGA:

http://webpages.charter.net/greener/electronics/video1/

{Quote hidden}>From: "Alan B. Pearce" <EraseMEA.B.Pearcespam_OUTTakeThisOuTrl.ac.uk>

>Reply-To: "Microcontroller discussion list - Public." <piclistspam_OUTmit.edu>

>To: "Microcontroller discussion list - Public." <@spam@piclistKILLspammit.edu>

>Subject: Re: [PIC]: Pic driving a pc monitor.

>Date: Wed, 1 Sep 2004 16:41:02 +0100

>

> >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

>

>_______________________________________________

>http://www.piclist.com

>View/change your membership options at

>http://mailman.mit.edu/mailman/listinfo/piclist

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