Hello All,
I have a simple C application where I read every ms the actual value of a Digital Input in a CDAQ NI - 9375 module.
My Rack is a cDAQ-9178 connected with USB conection to a Win 7 PC.
My application does in this order:
DAQmxCreatetask
DAQmxCreateDIChan (2 times one per channel)
DAQmxCfgSampClkTiming
DAQmxSetReadOffset
DAQmxSetReadRelativeTo
DAQmxStartTask
DAQmxReadDigitalLines
What happens is that when I read the Digital lines I get the erro "-200361 - On Board device memory overflow"
The parameters Im using are like bellow:
| Function |
Parameters |
| DAQmxCreatetask |
- |
| |
|
| |
|
| DAQmxCreateDIChan |
|
| lineGrouping |
DAQmx_Val_ChanPerLine |
| |
|
| DAQmxCfgSampClkTiming |
| rate |
10000 |
| activeEdge |
DAQmx_Val_Rising |
| sampleMode |
DAQmx_Val_ContSamps |
| SampsPerChanToAquire |
1 |
| |
|
| DAQmxSetReadOffset |
|
| |
0 |
| |
|
| DAQmxSetReadRelativeTo |
DAQmx_Val_MostRecentSamp |
| |
|
| Start Task |
- |
| |
|
| DAQmxReadDigitalLines |
|
| numSampsPerChan |
1 |
| timeout |
10 |
| fillMode |
DAQmx_Val_GroupByScanNumber |
| readArray |
@val[0] |
| arraySizeInSamps |
2 |
| |
|
If I try to change the "offset" to a negative number (dosen't matter if -1, or -10000) I get another error: "-200277 - Invalid combination of position and offset"
What am I doing wrong?
Thanks
