help picture acquisition card

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#2976

From: Rousseau Pascal
Date: Thu, 09 Nov 1995 00:00

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Hello everybody.
We are developing a picture card with a PCI 32 bits bus, but we have a 
problem with the data acquisition speed. The data acquisition speed is 
now only 500Khz and we would like a minimum speed of 3Mhz.
The soft use actually function "inport" of C language with a loop to take 
data.

Are there functions more efficient (C, ASM, ....)?

It is really necessary to use DMA for minimun data acquisition speed of 
3Mhz?
If yes : How? (soft/ hard).
I know how to program the DMA board.

Thanks a lot for your response.

Pascal 

PS : Sorry for my bad english.


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#	Rousseau Pascal					#
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#       http://www.ensta.fr                             #
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From: Rousseau Pascal <rousseau@enstay.ensta.fr>
Subject: help picture acquisition card
Date: 1995/11/09
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