Re: 64-bit 66-Mhz PCI cards?.

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On Thursday 10 July 2003 12:23 pm, David Schleef wrote:
> On Thu, Jul 10, 2003 at 04:11:45PM +0200, Ivan Martinez wrote:
> > 	Hello all,
> > 	I'm choosing new hardware for a data acquisition system, and I was
> > wondering if it was worth to pay for a motherboard with 64-bit 66-Mhz
> > PCI slots. Are there any A/D or D/A cards that require that type of
> > slot?. Will there be more in the next years?. Is there any supported
> > by Comedi?.
>
> I don't think there's much advantage to 64-bit cards for most
> common data acquisition.  I would guess that a few high-end
> cards that have huge bandwidth requirements will probably start
> using the newer bus. (like the 16-bit 65-Mhz analog input board,
> no I don't have one)  Otherwise, I'd bet that regular PCI cards
> will be the majority of available hardware until it becomes
> hard to find systems with PCI slots.  This is what finally pushed
> data acquisition manufacturers to switch away from ISA.
>

Also, most of the hype seems to be about pci-express lately.  So it's 
possible that the 66MHz/64bit PCI bus will never attain widespread use.
There are a couple NI 'pxi' boards currently supported, but I don't think 
any of them actually need the extra bandwidth.

- -- 
Frank

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Received on 2003-07-10Z21:27:37