Synchronizing Two PCI DSA Devices with CVI in Traditional DAQ
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Filename: sync_2_pci_dsa_boards.zip
Requirements: View
Unlike E series boards, DSA devices do not accept external scan clocks. Instead, the fundamental timebase of one DSA board can be slaved to another. The two boards act as one, with minimal phase error between data sampled on each board. (This error is unavoidable on MIO boards, even when they share a common scan clock). Select_Signal routes the Board_Clock signal from the master to the slave.
You do not need to modify this code to synchronize a pair of 445x devices, 455x devices, or 447x devices. Although transparent in software, these device classes use slightly different hardware schemes for synchronization. The program will not allow you to mix DSA board types such as a PCI-4472 and PCI-4551.
The PCI-447x boards are also supported in DAQmx and is the preferred API to use with these boards. There are shipping examples which demonstrate how to synchronize PCI-447x devices in CVI with DAQmx.
| Related Links: |
| DSA Synchronization in DAQmx |
Requirements
Filename: sync_2_pci_dsa_boards.zip
Software Requirements
Application Software: LabWindows/CVI Base Development System 7.0
Language(s): C
Hardware Requirements
Hardware Group: Dynamic Signal Analyzers (DSA)
Hardware Model: PCI-4451, PCI-4452, PCI-4552, PCI-4474, PCI-4551, PCI-4472
Driver: Traditional NI-DAQ (Legacy) 6.9.3
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