VGA Output

Development Boards MicroMod
1

I have not worked with any arm devices yet but I am thinking about getting into it. I was wondering if there was one that could do VGA output for a monitor?

2

You could generate VGA in software.

Leon

3

right, but any idea what kind of processing power I would need to handle vga?

4

http://www.piccoder.co.uk/content/view/55/26/

Here’s a fellow using a PIC 18F2550 to generate a green signal. Do the math if you want all the colors.

5

Depends on the resolution you want. 30 MIPS or so should do a reasonable job, the LPC ARMs can do about 60 MIPS.

Leon

6

What about composite video? Anyone have any ideas about that?

7

It’s easier than VGA, you just need three resistors for a simple DAC to generate baseband video.

Leon

8

Yea I found a page that describes how to do it with a pic (http://www.rickard.gunee.com/projects/v … /howto.php) it only has 4 levels but I can increase that as my experience level grows, thanks

9

This might be helpful:

http://www.jandspromotions.com/philips2 … AR1784.htm