problem with memory onboard

[marcelappb]

Hi,

I have ni Usb 5133, and I need acquire a sample of 50MS/s. This sample has approximately duration of 1 second after trigger. The 5133 has a memory onboard of only 4M, then it would be necessary intantaneously to transfer the data to the memory of the PC, therefore with these 4M, I only acquire 80ms of the total sample. How I obtain to get this sample of the 1s without losing given?
I read about DMA, however he did not help.
I need help.
Sory my English.
Marcela.

[bnoronha]

Marcela -

A solution to your problem would be to have the USB 5133 do continuos acquisitions. 

HOWEVER, the USB 5133 does not support continuous or multi-record acquisition.

The link below gives you the acquisition rate based on system configuration.

 http://digital.ni.com/public.nsf/allkb/ED7EC255D9FC1C1E862573A10059C902?OpenDocument

Best Regards

Bruno Noronha 

[Jennifer O]

A 32MB/ch memory option for the USB-5132 and USB-5133 has been released, which increases the maximum record length by a factor of 8. 

Jennifer O.