I am wanting to build a simple TV display device, interface with PAL composite.
I realise there is a library (aptly named TVOut) for displaying to TV with a handful of components, I have concerns that this will take away a lot of processing power and increase coding difficulty for other application tasks.
I am wondering if graphics co-processors (or something that does the same job that I don't know about yet) are still available and could be used with the arduino or standalone AVR?
The ideal features I would want is:
- Ability to provide predefined (ideally programmable) tiles or sprites to be used for english language characters or graphics
- Able to position these at arbitrary locations on screen
- Simple interface from the arduino side which then has the coprocessor do all of the more difficult time/sync/actual display (I write to a buffer)
Ideally this is an IC rather than a completed shield that I could later build into a circuit on a custom PCB.
Part friendly sources for Australia a bonus (Element 14 is our version of Farnell).
Thanks for any advice you can give that gets me further towards my goal