Write Named Waveform (Direct DMA)
- Updated2023-02-17
- 2 minute(s) read
Write Named Waveform (Direct DMA)
Writes a specified amount of data from a Direct DMA-compatible device to the waveform in onboard memory.
The sample size of the data you write is shown by the following table.
| Device | Sample Size in Bytes |
| PXI-6541/6542 | 4 |
| PXI-6544/6545 | 4 |
| PXIe-6547/6548 | 4 in SDR mode; 2 in DDR mode |
| PXI/PXIe-655x | 4 |
| PXIe-656x | 2 in SDR mode; 1 in DDR mode |
Inputs/Outputs
waveform name
The name you want to associate with the allocated waveform memory.
session in
Instrument session obtained from the Initialize Acquisition Sessionnode, the Initialize Generation Sessionnode, or the Initialize External Calibrationnode.
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
samples to write
The number of samples to write from the Direct DMA-compatible data source.
window address
The window address from the Direct DMA-compatible data source.
session out
Handle that identifies the session in all subsequent node calls.
The session out parameter is obtained from the Initialize Acquisition Sessionnode or the Initialize Generation Sessionnode.
error out
Error information.
The node produces this output according to standard error behavior.