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OSD for PAL video
We need the firmware and schematic of a circuit that will do the job described below.
The microcontroller (preferably from Microchip) will have to manage the following:
- OSD graphic interface - black/white graphics (buttons) and text . The LCD is 7 inch 800 x 480 resolution and accept CVBS composite video input only and the OSD must be available with or without the video signal at input. The OSD must have a resolution no less than 200 x 100 pixels.
- 4 wire resistive touchscreen. The touchscreen will use the OSD buttons to activate various functionalities.
- 3 bitone simple ringtones.
- various I/O signals. These I/O are driving other components of this project.
This project will use only the memory of microcontroller. You may choose whatever PIC it's necessary PIC 24, dsPIC30, etc but no external memory and no MAX7456 solution - both are too expensive. You may choose a video sync extractor (LM1881 or equivalent). In the attached "4.png" file there is a ...
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