Posted on December 20, 2011 at 10:52
Hello,
I can synthesize a waveform into a buffer, dma transfering it to dac. Result is ok but there's a noise that I can't remove. When the waveform is a 0 signal, the noise is still here.
The n...
Posted on December 23, 2011 at 17:36When disabling the DAC output buffer, I can notice two things:- I have to switch off my halogen lamp and to unplug my laptop from main supply (because of 50hz signal very loud) ;)- there's no reduction of the nois...
Posted on December 21, 2011 at 10:27The ''noise'' level is about 1 or 2 mV.The main problem for me is that it's not a white noise but it has a precise frequency (interrupt dma freq).Cheers,Julien.
