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Found 2 results

  1. Hello, I have 2 MCC 172 DAQs and would like to synchronous scan now, but there are only examples with external triggers. So I modified existing example like attached code, and test without external trigger. But it seem DAQs have different start time (Figure 1). I used BNC distributor so blue and green graph on Figure 1 have same input. Additionally, blue graph is data from device #0 (Master). Is there any way to start DAQs simultaneously without external trigger or just code is wrong? Cheers, Lee multi_hat_synchronous_scan_test.py
  2. Good morning, I'm new in this forum. I'm writing because I'm working on a project related to the generation of two encoded signals. As you can see from the uploaded code, the encoded signal (encoded[]) is made of a fixed base (encoding[]) that is multiplied by each element in the array data[]. Therefore the encoded signal is a bit stream of 0 and 1 that I created using funcCustom. The main constraint of this projects is that the two signals must be SYNCHRONOUS. The PROBLEM is that in reality they're not as you can see from the oscilloscope image. Sometimes it happens that there is a small delay of 4┬Ás and sometimes there isn't at all. Why does it happen? This is crucial for my application. In the code I used this kind of synchronization: dwf.FDwfAnalogOutMasterSet(hdwf, c_int(1), c_int(0)) dwf.FDwfAnalogOutConfigure(hdwf, c_int(-1), c_bool(True)) Thank you, Alessandro CDMA_customFunc.py
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