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Short Name: CO.DataXferMech
Property of DAQmx Channel
Specifies the data transfer mode for the device. For buffered operations, use DMA or USB Bulk. For non-buffered operations, use Polled.
|DMA (10054)||Direct Memory Access. Data transfers take place independently from the application.|
|Interrupts (10204)||Data transfers take place independently from the application. Using interrupts increases CPU usage because the CPU must service interrupt requests. Typically, you should use interrupts if the device is out of DMA channels.|
|Programmed I/O (10264)||Data transfers take place when you call DAQmx Read or DAQmx Write.|
|USB Bulk (12590)||Data transfers take place independently from the application using a USB bulk pipe.|
The following table lists the characteristics of this property.
|Settable while task is running||device-specific|
|Available in Run-Time Engine||yes|