Some Video questions

CannibalRobotics

Hi all,
I need to 'mix' sensor output data on to a camera image so that I can see data about my rovers on the same screen with the camera image. There used to be a board that did this all by itself but the prop should handle it with proper syncing of the image and the character gen. So, I need to sync the camera output to the video generation code. Has anyone waded into this to see where and how to sync these two signals?

Also, is there a video character generation call that allows one to only update specific characters on the screen without having to rebuild the whole screen after a 'home' call. I am using the 'TV_terminal' to drive my video.

Thanks all and BTW, glad to become a member!
Jim-

Rayman

You should look at Hitt Consultings' video overlay board:

http://www.hittconsulting.com/products/hcosd/

He even gives circuit and code if you want to make your own version...

CannibalRobotics

Wow! That's the ticket on the sync issue. Now I just need to find the character insertion solution.

Thanks!
Jim-

Graham Stabler

You just need to reposition your cursor and write over it, you can do that with TV_text