> The problem is that there's no way of telling which of the two halves of > an interlaced screen is being displayed. Having said that, I had a > 512*384*4 video driver alpha for Driver v2 which just flickered between > two such screens and it looked fine. Not quite sure why... :-) > > Steve. >
What even more adds to the problem is that the SAM doesn't have odd and even fields -- the lines on consecutive display fields are in the same place, so you only get the appearance of interlace - and also, this is what causes the flicker... Now, it should be possible to get around that by putting something between the ASIC's CSYNC signal out and the MC1377P's CSYNC in to elongate the VSYNC by half a line, if anyone wants to try... :) Si
