Hello Guys,

Please can you point me to websites where I can learn how to do video generation with AVR microcontrollers (in preference Atmega168).

If possible, your answers can be in the style of a tutorial.

Thank you.

 

Tetris Game with TV Output.

Source code is included on that link, not sure if that is what you are looking for or not.

The output is PAL, but there are others around with NTSC output. What is your location's format?

 

I am looking for websites with explanation of the protocols, NTSC/PAL, etc. With basic explanations and examples of how to generate signals.

 

Hello,

For the TV standards you can take a look at this page:
http://www.pembers.freeserve.co.uk/World-TV-Standards/index.html

This is a link from the EDUCYPEDIA page on Television systems:
http://www.educypedia.be/electronics/television.htm

Bertus

 

Hello Guys,

Please can you point me to websites where I can learn how to do video generation with AVR microcontrollers (in preference Atmega168).

If possible, your answers can be in the style of a tutorial.

Thank you.

A color video signal is rather complex. I don't believe that an AVR 8-bit microcontroller by itself can cope with the 3.579545 Mhz NTSC color signal. A monochrome tv signal is a lot less complex and therefore may be feasible.

It would help if you would elaborate on what is the nature of the tv signal you would like to generate.

hgmjr

 

A color video signal is rather complex. I don't believe that an AVR 8-bit microcontroller by itself can cope with the 3.579545 Mhz NTSC color signal. A monochrome tv signal is a lot less complex and therefore may be feasible.

It would help if you would elaborate on what is the nature of the tv signal you would like to generate.

hgm

As I am just starting I will be glad with monochrome tv signals.

 

This has a pretty good explanation but is for the PIC

http://www.rickard.gunee.com/projects/video/pic/howto.php

 

I was just reading through a google search.. Found some interesting stuff on video signal creation using onboard SPI.

Start looking at "OSD" or On Screen Display projects.

That will get you putting text on the screen, and getting the Pal/ntsc signals and timing correct.
I searched "AVR OSD"

here is one cool thing: Anyone involved with RC Airplanes will enjoy this:
http://webx.dk/rc/video-wireless/video-osd.htm

 

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As I am just starting I will be glad with monochrome tv signals.

Describe what you would like to do in as much detail as you can?

hgmjr

 

First, I would like to be able to draw some points and vertical/horizontal lines. My ultimate goal is to be able to make simple games like tetris and pong.