I am attempting to setup a simple input capture with a PXI 6602 card in LabWindows. I have 8 signals which I would like to read back at a rate of 100Hz into an array.
When I attempt to set the sample clock DAQmx throws error -200077, with the following description:
"Function DAQmxCfgSampTiming:
Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property.
Property: DAQmx_SampTimingType
Requested Value: DAQmx_Val_SampClk
You Can Select: DAQmx_Val_OnDemand"
I am using this card for another task which does on demand reads of the current state. Am I missing a step to reconfigure the card for clock sampled input? My current code sans error checking is this:
DAQmxStopTask(TIO_read); //On demand task
DAQmxCreateTask("Sample Clock",&TIO_clock);
DAQmxCreateCOPulseChanFreq(TIO_clock,"TimingIO0/ctr0","100Hz_clk",DAQmx_Val_Hz,DAQmx_Val_Low,0,100,0.5);
DAQmxStartTask(TIO_clock);
DAQmxConnectTerms("/TimingIO0/ctr0InternalOutput","/TimingIO0/PFI36",DAQmx_Val_DoNotInvertPolarity);
DAQmxCreateTask("Startup Timing",&TIO_samp);
DAQmxCreateDIChan(TIO_samp,TI_PORT"/line7:0","",DAQmx_Val_ChanPerLine);
DAQmxCfgSampClkTiming(TIO_samp,"/TimingIO0/PFI36",100,DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,1000);
DAQmxStartTask(TIO_samp);
Any ideas?
