On Monday 07 Nov 2005 18:31, Marco Coli wrote: > Georg Acher wrote: > > The signal integrity of some CAMs is quite bad. The have slow and and > > irregular rise and fall times for the clock, with varying setup/hold > > times for the data. This can lead to data corruption on the receiving > > side of the CI slot. AFAIK the Matrix cam was one of the worst I've seen. > > I can't imagine how one create such an "analog" clock signal from a > > digital source... > > I am sorry to hear that... Unfortunately for me, I can't consider a cam > change, because Matrix and Dragon, as far as I know, are the only ones > which can be programmed for NDS-Videoguard for sky italy. > > > In short: There is so much badly designed crap in the CAM market. It is > > a wonder that at least some CAM/receiver combinations work... > > But in all receiver I tried, my cam worked well, except for my nova card > :-( > > Do yiu think, like Andrew suggested, that using a full featured card > (like the nexus-S one) could be a solution? I wonder if it would be possible to simple have some form of retransmission at the application level... I'll have a look at en50221. I reckon we need debug from the application side to find out exactly what is going on.
