Posted By
Bionic
on 2022-02-23
13:18:35
|  Re: Is there such a thing as an interlaced picture for the +4?
>The code looks very similar to IstvanV's FLI interlace routine, though using slightly different timing. Have you played with multiple different timings by chance? I wonder as I cannot get picture using an HDMI converter using your routine either (signal/freq is out of range?). It also does not seem to work properly on any of Today's +4 emulators. sad Let me ask was that a CRT monitor you used for your screenshot, or should it be LCD, what model is it?
I used an analog scope to replicate the PAL timing. I actually found a photobelow. Using a modern DSO would be much better today.
The monitor is a Dell TFT with composite input. It's possible that it is more tolerant of timing than other converters.
The best solution would really be to make sure that the timing is correct and not adjust it to a single monitor. Maybe it's also necessary to allow for some options to adjust the timing, in case there is still variation between different monitors.
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