The PCI interrupt line was monitored with a scope. Driver was the same
in both cases.
Art
Richard Smith wrote:
On 10/11/05, Art Fore <[EMAIL PROTECTED]> wrote:
We have two machines with AMD 64 processors, one with Asus motherboard &
Via chipset. Another with Asus motherboard with Nvidia chipset. On the
one with the Via chipset using WinXP, when an external interrupt is
received from a stargen chip, it takes 8 microseconds for the response
to the interrupt. On the Nvida chipset, it takes 40 microseconds. Both
machines are running the same program (In house developed driver).
What are you looking at to determine this? It may be a driver issue
and not a hardware issue. Are you flipping a bit somewhere when the
interrupt is acknowlegded in the driver or when your app responds?
--
Richard A. Smith
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