> > >From a tuner card: > > > > supported norms: 0 = NTSC-M; > > 1 = NTSC-JP; > > 2 = PAL-BG; > > 3 = PAL-DK; > > 4 = PAL-I; > > 5 = PAL-M; > > 6 = PAL-N; > > 7 = PAL-Nc; > > 8 = PAL-60; > > 9 = SECAM-L; > > 10 = SECAM-DK; > > > > Looks like we need at least 11 modes for TV? :-( > > > > That's 4 jumpers, just for TV. Can't get away from those pesky > > jumpers. > > > If OG can't get away from it, why can the rest of the planet? > > I don't know a single graphics device that has jumpers for PAL/NTSC, let > alone for the derived standards.
Many analog television products are customised for each market. OGC could do this by having eleven (or whatever the actual number is) versions of firmware, but that would raise costs more than 4 jumpers. For a computer graphics card, if you are not trying to use the TV as a system console, you can just tell the card which mode you want to use at runtime. But OGP is trying to allow use of a TV as system console. You need a display to see what you are typing in order to set the mode. It is the exact same chicken-and-egg catch-22 problem as setting the video mode for a monitor, except with TV there are fewer possible modes, therefore fewer jumpers or switches. And with TV there is no DDC that you could inject. If OGC doesn't use TV as a system console, it doesn't need jumpers or switches for TV. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
