[linux-dvb] DVB-T card for PCI-X
Christoph Anton Mitterer
cam at mathematica.scientia.net
Fri Sep 30 23:12:12 CEST 2005
Ruediger Dohmhardt wrote:
> Christoph Anton Mitterer wrote:
>> Ruediger Dohmhardt wrote:
>>> To answer your question: You can plug (2) and (3) into a PCI-X slot.
>>> Disadvantage: The whole PCI-X bus slows down to 33MHz, whenever it
>>> recognizes a single PCI-card.
>> Oh,.. thats bad,.. uhm is this sure? As I told my board hast 3 PCI-X
>> slots (2 with 100MHz and 1 with 133MHz) and one conventional PCI slot
>> (33MHz). I think the PCI and the PCI-X buses have each their own
> I'm not really sure, how many busses you have. I guess 3:
> 1 x PCI-33MHz
> 1 x PCI-X 100MHz
> 1 x PCI-X 133MHz
> But again its just a guess.
> I assume further that just one bus (the one you plug your card into)
> slows down to 33MHz.
Yes you're right. Jon remembered me just before that there are two OCI-X
buses in my board (I forgot that *g*),...
>> Is there a way to defenitely determine if a card is keyed correctly?
> There are, for example, PCI-chips from companies like AMCC or PLX.
> You can easily find the data sheet in the WEB, which tells you what
> kind of signalling they have.
> Most PCI-interface chips are ASICS, hence you won't find a
> specification and you must rely
> (which you should do, except you design/build professional systems) on
> the "keying".
> Hauppauge (in Germany) is always very helpful on the phone. They might
> tell you what kind of signalling there PCI-chips use.
Yes,.. I'm already thinking about Hauppauge... Robert told me that
Hauppauge announced an Dual DVB-T card, too. (for PCI) But I don't know
yet if its compatible with my PCI-X, and what about those features like
surround sound videotext, etc. (see other emails from me). Gavin said
these aren't supported at all by those budget cards :-(
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