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Plotting USART data in LabView

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Adam_329

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Hello!

I've made this simple LabView VI to plot data sent by the MCU on a graph. Unfortunately there seems to be a problem. Even if I send nothing but zeroes a vibrating peak shows up on the front of the graph, it isn't just a flat line. I made a screenshot of this and attached it to this meassage along with the vi.
What is causing this and how could I fix it?

Once it works correctly I would like to display the spectrum of a signal. The spectrum is stored in a 32 length 'int' array which I'd like to transmit to my PC through USART and display it on a graph in Labview.

Regards,
Adam
 
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