Re: Any way to force a 64-bit transaction

[Bob Mathews <bobm@lsil.com>]

I think the best way would be to use a PCI bus exerciser from HP(Agilent) or Vmetro
or others.   These will let you  control your commands and sequences to properly
test you board.  On the motherboard you are really at the mercy of the PCI host
controller of the chipset.
But aren't you more concerned about your board as a PCI master using the
motherboard memory as the target, since that is where the power of a 64/66 card is
found?

Regards,

Bob

Michael Richardson wrote:

>   We have a 64/66 card.
>   We are testing it against a Micron Samurai chipset motherboard with
> an Intel processor.
>
>   We are looking for a way to *force* a 64-bit write from our (PIII) CPU to
> our device so that we can test our handling of 64-bit operations. So far
> we have been unable to find a way to do this.
>
>   Does anyone have any suggestions? Does it matter how we map the device?
> (Cacheable vs non-cachable) Are there any extra instructions on PIII that
> might help us? Since it is really a 32-bit CPU with a 64-bit external bus,
> there is not (to my knowledge) a 64-bit write.
>
>    :!mcr!:            |  Solidum Systems Corporation, http://www.solidum.com
>    Michael Richardson |For a better connected world,where data flows faster<tm>
>  Personal: http://www.sandelman.ottawa.on.ca/People/Michael_Richardson/Bio.html
>         mailto:mcr@sandelman.ottawa.on.ca       mailto:mcr@solidum.com
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