Export "AI Convert Clock" of 4472 to a PXI_Trig line

i have 11 pxi4472 on the same pxi1006 chassis. previouslly, i routed the "AI Convert" signal of the master 4472 card to an RTSI line, so that whenever there is an A/D convertion it can be timestamped by another card listening to this RTSI line. i used DAQ originally and everything works fine.
recently, i rewrote all my code using DAQmx. but somehow when i use the "DAQmx Export Signal (Most Signal).vi" to export "AI Convert Clock" to a pxi_trig line, labview complains about a -200375 error: "Signal type requested to be exported is not supported for the specified task running on the given device". so seems like "AI Convert clock" is no longer valid in DAQmx? i tried every other signal that DAQmx allows me to e
xport, but nothing seems to be the right one.

To export the Sample Clock from the PXI-4472, use the DAQmx Export Signal property node. Specify the Sample Clock Output Terminal property (Clocks / Sample Clock / Output Terminal), and create a constant or control that specifies the desired PXI trigger line. During an acquisition, the sample clock will be exported as 100ns wide pulses at the specified sample rate.

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Task Name: taskClock
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Could anyone give me a clue how two output a data signal and a clock signal  to 2 different ports with different clock rates for each signal ?
Thank you very much

One quick question about how you setup your timing:
Spoiler (Highlight to read)
DAQmxErrChk (DAQmxCfgSampClkTiming(taskData,NULL,1000000.0,DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,DAQmx_Val_ContSamps));
DAQmxErrChk (DAQmxCfgSampClkTiming(taskData,NULL,1000000.0,DAQmx_Val_Rising,DAQmx_Val_FiniteSamps,DAQmx_Val_ContSamps));
If you are only going to write 1000 finite samples, then why are you specifying the number of samples to write here as "DAQmx_Val_ContSamps" and not 1000? See: Sample Clock Timing Reference
Also, I gather what you are trying to do is output the DO task's sample clock on line0, at the same time that the DO task is running. If that's true, you should be able to export your sample clock using the export signal function. See: Export Signal Reference
Hope this helps.

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Export "AI Convert Clock" of 4472 to a PXI_Trig line

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