Are you sure that it is not a hardware problem, but a software problem ?
Programming with a PCI device is not much different from that with a ISA device,
,especially in case of memory mapped I/O.
Programming a bus-master DMA with a PCI device is simpler than
that with a ISA device which uses one of DMA controller in PC mainboard.
see the following books for more information.
1.
title: LINUX device drivers
author: Alessandro Rubini
publisher: O'reilly
2.
title: PCI System Architecture the third edition,
author: Mind Share, Inc. Tom Shanley/Don Anderson
publisher: Addison Wesley
>
> Hi,
>
> I am looking for information of how to develop high performance
> software to interact with PCI data acquisition cards.
>
> Although very simple to program, the ISA bus seems to have a lower
> overhead especially when exchanging a few number of bytes each time, e.g.
> A/D card.
>
> A similar card with a PCI bus interface seems in some cases slower.
> Considering that a PCI bus is much faster than a ISA bus, I figure that I
> must be missing some programming information to allow me to make fast
> access to the pci bus.
> Does any one have information or pointers to some information on how to
> make best use of PCI bus with software and/or some references to
> programming PCI bus.
>
>
> I woul really appreciate some feedback.
>
> Thank's in advance.
>
>
> Michel
> [EMAIL PROTECTED]
>
>
>
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