[Robotgroup] USB to parallel problems

[Robo Al]

Precisely, I think direct PC interfacing is getting outside of the
hobbyist realm due to speed of the buses (but indirect is actually
a pretty easy easy thing).

I am curious as to your experiences with HDMI, I always thought that
it was so fast that you needed high end equipment to develop anything
for it. Basically that's the whole reasoning behind encrypting digital
streams (ie. cable, satellite) to where you need their set top boxes,
which in turn are HDMI capable to send the signal to your tv assuming
you won't be able to rip them off by recording such a fast/massive
signal.

Alberto


On Sun, 2008-04-20 at 01:34 -0500, Andre Lamothe wrote:
> Exactly. And yes to the comment about ISA and PCI, ISA is doable, PCI is a 
> black art, wave reflection mode transmission, etc. I have had to implement 
> PCI plug in sound boards as well and similarly frustrated when ISA was so 
> easy. Then you talk about things like SLI, etc. these things are NUTS, you 
> can't even look at them without $50K equipment since the signals are so 
> fast.
> 
> However, as an aside, I don't know how many of you build video hardware that 
> drives NTSC, or VGA, both relatively easy protocals. But, the new digital 
> protocals are NOT that bad, HDMI is packet based serial and pretty 
> reasonable, I was very happy with it when I read the spec (which you can 
> download from the site, I think it was like 200-400 pages, not bad for a 
> committee). So that's good news. Thus, video is still in the realm of 
> hobbyists once all analog systems go bye bye. Which in reality will take 10 
> years at least, so I am not too worried. But, if HDMI was a USB/Ethernet 
> mess, I would have dug my eyes out with a fork :)
> 
> Andre'