[vdr] Re: Increasing SDRAM on DVB cards

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Klaus Schmidinger wrote:
> 
> Peter Seyringer and I are looking into the possibility of
> increasing the SDRAM size of a full featured DVB card.
> In principle the AV7110 supports up to 4MB of SDRAM, but
> unfortunately the existing cards only have a 2MB chip on
> them. The question is now: does the board layout provide
> access to the AV7110's second SDRAM chip select line? Since there
> are many signals leading to the expansion port (where the CAM
> module is connected), maybe we're lucky and the second
> CS goes there, too.

Meanwhile I learned (from a contact who prefers to remain unnamed, which
I respect) that the SCS2 pin is not routed outside from under the AV7110 chip
on the Technotrend DVB-S cards. Since all these cards (Siemens, Hauppauge,...)
apparently use the same board layout, I guess this pretty much means that
it is not possible to extend the SDRAM of this card.

Well, would have been nice...

Klaus
-- 
_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
_______________________________________________________________


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