Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!cronkite!exodus!oobleck.Eng.Sun.COM!bender
From: bender@oobleck.Eng.Sun.COM (memory fault - core dumped)
Newsgroups: sci.electronics
Subject: Re: Composite signals and TVs
Message-ID: <16015@exodus.Eng.Sun.COM>
Date: 29 Jun 91 02:39:51 GMT
References: <9106281438.AA14158@ws-30.cae.wisc.edu>
Sender: news@exodus.Eng.Sun.COM
Organization: Sun Microsystems, Mt. View, Ca.
Lines: 30

In article <9106281438.AA14158@ws-30.cae.wisc.edu> kolstad@CAE.WISC.EDU writes:
->
->	I'm a "EE in training" (Junior year...) and would like to find some
->information on what composite TV siganals are made of.  What I really want to
->do is to send data from a microcontroller to a TV, but I believe that using
->composite video and a pre-made RF modulator module is the easiest way
->to do this.
->
->	Actually, if there are some nice chips out there that give you, say,
->couple hundred by a hundred or so dots of resolution by just attaching
->RAM on one side and an RF modulator on the other, I'd be happy to hear about
->them -- the actual makeup of the composite signal wouldn't worry me as much,
->then. 

what about these suggestions:

	1. get an old CGA board for a couple of bucks and build up
		a simple interface from your micro to the board, so
		that the board thinks it's in a PC

	2. buy a VIC-20 or C-64, pull the video controller out and build
		up the rest of the stuff around it; you could probably
		even use Commodore's design, since I believe that they
		furnished schematics with the VIC-20 and C-64

mike
--
------------------------------------------------------------------------
1985 Honda Shadow VT1100                                   | DOD #000007
1989 Honda NX-650                                          | AMA #511250