OPENCORES.ORG

Hey Mike,

Thanks to everyone who'se replied.  I'm under a lot of contraints on
this project, it looks like the end design will (hopefully, assuming I
can get it working right :) use a Phillips chip that'll take
non-interlaced YCrCb and give me composite NTSC out.  For now, just
trying to get the other end working while I'm waiting on samples, I'm
going to use VGA and a AD724 (or one of their other two).  It dosen't
look like getting NTSC working in full color from an FPGA is worth the
effort for this design.

Mike

On 7/14/05, aecohen69@h... <aecohen69@h...> wrote:
> Hey Mike,
> 
> Until you get the NTSC video signal generating down you can get simple
> converters (analog)RGB+HSYNC+VSYNC to NTSC like AD724? There are other
> chips but you'll have to do a websearch. Best of all the AD724 can
> generate S-Video for a better picture. Download the datasheet from
> analog devices and you get get an idea of what is involved in RGB to
> NTSC video.
> 
> Aaron
> 
> ----- Original Message -----
> From: Mike Delaney<mmdst23@g...>
> To:
> Date: Wed Jul 13 23:51:15 CEST 2005
> Subject: [oc] NTSC Video Encoding/Generation
> 
> > Has anyone seen a free core for NTSC video generation (or something
> > like a tutorial that I could at least use as a starting point)? I
> > haven't had much luck yet, I can get a nice zigzag pattern that's
> > supposed to be verticle lines ....
> > Also, it seems like most of the designs or eval boards I've found
> > online use an external NTSC encoder, typically from Phillips. Is
> > generating color NTSC (with a parellel DAC) that hard, or is it
> > just
> > people being lazy? :)
> > I did try searching the lists, but it looks like the search site
> > still
> > isn't returning results.
> > Thanks,
> > Mike
> >
> >
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