GreenLed

Hello, Thanks for all your replies. Unchecking that box does make the acquisition sharper. That helps. After trying the checkbox, I looked in the help at: file:///C:/Program%20Files%20(x86)/Digilent/WaveForms3/doc/index.html It says Noise: check to acquire scope noise samples, uncheck to speed up acquisition rate. I am trying to figure out what it means to "acquire scope noise samples". I disconnected and reconnected the negative scope input to ground and found some difference. Does the "acquire scope noise samples" have anything to do with some extra averaging computations, or an extra ADC path to sample somewhere in the AD2 some noise at a point in the circuit? Thanks.

Hello, I am trying to interpret the fuzziness around some traces I get sometimes in the scope display. I put some pictures of I2C acquisitions on an AD2. I am guessing that the Waveforms is trying to display the current block of samples in the bright colors and the previous block of samples that triggered in a more faded fuzzy color. Is that correct? Is there explanation in the documentation somewhere? I can't find it. This kind of reminds me of a persistence of vision on an analog scope where paler traces are superposed with stronger traces because our eyes can't see that there are several scope sweeps. The problem with that theory is that if I put it in single trigger, I get the fuzziness in 10us/div and slower. It is sharp when I am at 5us/div and faster. How does this fuzzy feature supposed to work? Also, is there a control where I can disable/enable the fuzzy feature? Thanks. Single mode 10 us/div: Single mode 5 us/div Continuous mode: