Interfacing a micro to a VGA monitor

[challenger]

I would like to interface a Micro (preferable a PIC) to an XBOX 7.2 inch LCD panel via its internal VGA input connector.

I would like to use 4 or 8 bits of data to cause the micro to select an ASCII character from a table. The characters could then be assembled in a 40 CHR perline buffer before a carriage return is issued.
I would like to have each ASCII char displayed on the monitor in real time.

If anyone has had any experience in this area, I would be very interested in hearig from you.

Rgds
challenger

 

[ego]

I think you can do this with an old ISA graphic card,it will be easy.

 

[challenger]

Using a CGA or VGA card is an idea which I considered.
Unfortunately, video cards are much too big and power hungry for my application.

I did find some interesting circuits using a ST5730A and a PIC while searching the web.
h**p://alternatezone.com/electronics/
Although the output is composite video I see that there are R G B pins on the STV5730 IC. HHmm I wonder???

If anyone is interested
Circuit Cellar had an articale on this IC:

The On Screen Display (OSD) Module utilizes the industry standard STV5730A OSD IC in conjunction with a
Microchip PIC16F876 to generate characters on a standard television set.
Characters can overlay the input video signal or overlay a color background with no video input required.
The OSD Module is set up for NTSC input but can also be modified for PAL.

The Microchip PIC16F876 can be programmed on-board using any PIC programmer capable of ICSP (In Circuit Serial
Programming).

You can download the PIC C source code from: ftp.circuitcellar.com/pub/Circuit_Cellar/2003/152/.

You can also get the details of the OSD Module’s circuitry in the March 2003 issue of Circuit Cellar Magazine.

Rgds
challenger