How can I optimize readout speed from PCI-1408 connected to line-scan camera?

[MLezius]

I have a rapid line scan camera connected to a PCI-1408 in a Pentium 4, 2 GHz, system. I need to read-out the line-scan (1024 pixel) faster than 1 microsecond, using Labview 6 and the corresponding IMAQ routines (no VISION!). The linescan is triggered externally with a 1 kHz signal, pixel clock is 40 MHz.
The transfer via the PCI-bus seems fast enough, IMAQ_get_buffer.vi can easily handle this (0.2 us). However, I am loosing too much time in IMAQ Start.vi and I look for possibilities how to avoid envoking this routine each cycle, or how to accelerate it.
Can anybody help me in this respect?
Thanks

[JR_A.]

You should be able to set the acquisition window in MAX for the number of lines that you want and then perform a Triggered Snap. Then when the board is triggered it will acquire a frame with that many lines as the lines are triggered on the camera. You could also set up to board to trigger each line from the camera as describe in KB 2AQD7T8M

JR A.
Application Engineer
National Instruments