[TUT][ASM][HARD] How to Make VGA with any AVR

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Greets fellow Freaks!

There have been several requests on an instructional showing how to make an AVR output a VGA signal. I have started such a tutorial, and plan to have it completed by the end of this week...

http://www.lucidscience.com/pro-...

The project will show how to make 3 different VGA generators...

1) A basic real time bit banger (done)
2) A small internal frame buffer (started)
3) A full blown dual buffer system with external SRAM

I am using an ATMega324 and 644p, but this is really just a DIY to show how it can be done with any micro controller.

Source codes are included, but they are quick hacks, leaving much room for improvement.

Comments/suggestions are always welcome.
Hope to have this completed by the weekend!

Cheers.
Brad

I Like to Build Bikes : http://www.AtomicZombie.com

I Like to Hack Stuff : http://www.LucidScience.com

Last Edited: Thu. Nov 4, 2010 - 07:57 AM
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This is great man, thanks a lot for the link

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Respect for all the effort and such a nice and fluent tutorial.

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Brad, this shouldn't be allowed to drop off the first page of AVR Forum (as will eventually happen). Can I move this to the Tutorial Forum?

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clawson wrote:
Brad, this shouldn't be allowed to drop off the first page of AVR Forum (as will eventually happen). Can I move this to the Tutorial Forum?

Thanks!

Yes, you can take any of my AVR projects from LucidScience and link them here anytime. Being a "FanBoy", I plan to have hundreds of cool AVR projects on my site as the years roll by.

Now I best get busy on my next day off and complete this VGA tutorial, as the best part is yet to come.

Cheers,
Brad

I Like to Build Bikes : http://www.AtomicZombie.com

I Like to Hack Stuff : http://www.LucidScience.com

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Finally had a day off to complete this project, and added 16 new pages of information...

http://www.lucidscience.com/pro-...

Hope someone finds this useful, it was sure fun to make!

Cheers.
Brad

I Like to Build Bikes : http://www.AtomicZombie.com

I Like to Hack Stuff : http://www.LucidScience.com

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I have a question for Atomic Zombie about another generator circuit I found. Should I PM you or make a post in the appropriate forum?

Edit: I'm going to go ahead and post the question in the AVRFreaks Academy forum as I just realized what I have a question about is in the projects section. It's the Deogen project.

Thanks,

Eric

P.S. Everytime I try to click the smilie button I get a popup window that says "Hacking attempt 1"

[moderator: been like that for 2, maybe 3 years, if Atmel can grub together three shekels to put in the meter I guess it may be fixed one day ;-)]

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Hi. As far as i know, you need an S-Video output on your graphics card and a stereo output from a sound card. There is no way you can adapt a signal from a VGA port cell phone spy to do what you want.

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