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Omap L138 / DAC User Interface



Hi everybody ,

I am working with the Omap L138 DSP , I try to generate a sine wave and observe the signal coming  out from the DAC , the sine wave seems Ok but when I want to sent a single period and use the mode " single Sequence " with the oscilloscope to catch the signal , I notice the presence of a peak at the beginning and the and the end of the sine.

Here is the half of my sine witch I generated :

 

I need to resolve this problem for the rest of my project so I hope you can hep me !

 

Thanks.