How Do You Configure the Digital IO on S Series and 673X Devices? Hardware: Multifunction DAQ (MIO)>>S Series, Signal Sources (AWG/FG/AO)>>Analog Output Devices>>PXI-6733, Signal Sources (AWG/FG/AO)>>Analog Output Devices>>PCI-6733
Problem: I am trying to configure my DAQ device to do correlated digital output. However, when I compile my code, I receive an error very early in my code at DIG_Grp_Config which is the first NI-DAQ function I call. I have checked the parameters of this function and I am confident they are correct. What am I missing? Solution: You must call DIG_Line_Config prior to calling the DIG_Grp_Config function. Using the DIG_Grp_Line function with a PCI-6115, PCI-6120, or 673X device will configure a digital line either for immediate digital I/O or for buffered digital I/O with a clock signal. Specifying a line direction of 0 or 1 will configure the line for immediate digital I/O using the DAQ-STC chip. In this mode, no handshaking is possible. Specifying a line direction of 4 or 5 will configure the line for clocked, buffered digital I/O. A subsequent call to DIG_Grp_Config will then assign the line to either the input group or the output group for the device. DIG_Block_PG_Config sets the source for the clock signal. Related Links: Product Manuals: Traditional NI-DAQ User Manual KnowledgeBase [041A1KNI]: On Which Devices Can the Digital Input/Output (DIO) Lines be Individually Configured? Attachments:
Report Date: 05/14/2004 Last Updated: 01/21/2005 Document ID: 39DD4IMV |
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