Hi Daxx,

the solutions of Richard and Dennis are with use of a dedicated controller or an external chip. I think you mean using a kind of 'standard' 8052 to produce on-screen text. This will be possible, but to implement it you must clearly understand how video signals are build up. As you name your treat 'Genlock', I think I don't have to tell you that the processor must be synchronised with the videosignal so it knows when a line or a raster starts so it can calculate at what time to draw the characters.

Maybe you can use the external interrupt pins for the v- and h-signals to synchronise the processor.

This sort of project will take many resources, so i think it is better to not add it in an existing controller project but to take one 8052 for the video and drive this from another 8052 with the project build in.

Henk