Using Dma and Lab View

[Space Watch]

Tring to get high speed data transfers with lab view using dma channel.. The system it's running on p4 1.8 ghz with 1 gb of mem. When using handshaking, the board seems to be set in a polling mode, and is only capable of a ~15 khz sample rate, I need a 2 mhz sample rate. Any code lab view examples out there that shows some dma funtionality?

[Filipe A.]

Hello;

The DMA functionality is dealt by the NI-DAQ driver once a data transfer is configured.

One thing you need to double check though, is if the DAQ device you are working with has a DMA controller on board, or, in other words, if the device supports hardware timed data transfers.

For more information on that, consult the DAQ device Users Manual.

Hope this helps.
Filipe A.
Applications Engineer
National Instruments