Dnia 00-10-20 Simon Cooke pisze: > It's not true interlace though -- but you can tell some > monitors to move the display down a scanline and have true > interlacing by doing that, and flashing the border white in > the off-screen area for a short time when you want to jab it > down a line :) This reminds me idea of my LACER interface, that removes the first vertical synchronization pulse then adds one at the end, depending on colour in very top border line, what can give real interlace.
I was going to use external composite video signal and LM1881 chip to separate synchronization pulses and some logic to count pulses, etc. Now I think it is easier (cheaper, too) to use ST62/PIC mirocontroller. Also for SAM an internal version is possible, as SAM has /SYNC line (no need for LM1881, but must be soldered inside). If someone can deal with ST62/PIC devices, I can provide details, how to do all the thing. -- Yarek.
