Hi,
I need to pull data out of my 3rd-party PCI device at 22MB/sec. The fastest I've been able to go using NI-VISA 5.4 in LabVIEW 2013 is 1.6MB/sec with the Move In 64 function. There is no DMA controller on the 3rd-party device. I was hoping to use the host's DMA controller and a VISA MEMACC object, but I stumbled across KnowledgeBase 3229I2RA: How Do NI PXI Controllers Support DMA (Direct Memory Access)? The KB states, "Our PXI controllers only support the PCI specification, and therefore do not need a DMA controller on the motherboard." If there is no DMA controller on the 3rd-party PCI device, are there any DMA options for my 3rd-party device on NI PXI controllers?
Thanks for your time and thoughts,
Steve K