sampclktiming? How to use?

Hello

I tried many things and I read a lot, but I've always found this error massage:

NO MORTALS RUN - TIME ERROR: "malloctest.c", line 198, col 25, id 0 x thread 00001764: DAQmxWriteDigitalU32 function: (is-200292 return value [0xfffcf19c]). Part or all of the samples to write might not be written in the buffer again. More space will release the samples currently in the buffer are generated.  Expect more space become available, use more time to write. To make space available sooner, increase sampling rate. Property: Value of the DAQmx_Write_RelativeTo: DAQmx_Val_CurrWritePos property: value corresponding DAQmx_Write_Offset: 0 task name: the State Code:-200292
I tried all the suggestions, but I've always found the same error.

What was my mistake? Do I have to create an own task for SampClkTiming? Also I use USB 6221 and I am currently having two silmutaneous of signals.

table has a size of 60 items. table = [data1, data2]

DAQmxCreateTask ('out', &task);)
DAQmxCreateDOChan (task, "Dev1/port0/$line0", "", DAQmx_Val_ChanPerLine);
DAQmxCreateDOChan (task, "line1/port0/Dev1", "", DAQmx_Val_ChanPerLine);

DAQmxCfgSampClkTiming (task, ' / PFI0/Dev1 ", 30, DAQmx_Val_Rising, DAQmx_Val_ContSamps, 60);

DAQmxWriteDigitalU32 (task, 30, 0, 10.0, DAQmx_Val_GroupByChannel, array, & writing, NULL);

DAQmxStartTask (task);

While (Loop)
{
ProcessSystemEvents();
if(Loop==1)
{

DAQmxWriteDigitalU32 (task, 30, 0, 10.0, DAQmx_Val_GroupByChannel, array, NULL, NULL);

ProcessSystemEvents();

}
}

If you specify an input terminal and provide a square clock? Try not to use a counter in the same room: some tasks may conflict in the use of internal resources and generate errors.

You have other tasks entered / output running at the same time?

Unfortunately I do not have a currently daq card in my hand so I can not test other than on the simulated devices.

Tags: NI Software

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