Xavier Jiang

I was trying to capture the transient (a.k.a. "bounce) of some buttons, so I want the highest amount of samples (a.k.a. 100M) possible from the Analog 2. However the Analog was complaining about "data loss" and "reduce sample rate", even if I set the amount of samples to be beneath 8Ki (the default allocation size). In the lab. I am unable to produce that problem, and now I can get it to do *live* at 100M, so I don't know. I even get it to do 25M waves, although its very apparent that the DAC is not fast enough, but that's fine -- I'm just trying to see what will cause it to fail. I can only imagine that by the time they get to play with Analog 3 they get to do even more crazy stuff.

Correct me if I am wrong, but I have noticed the behavior (regarding wavegen) that instead of storing the waveform (and associated settings) in the AD buffer, the waveform is being continually streamed from the PC, even though the wave is repeating. I know the "play" function of wavegen streams chunk of the file to the AD, which is because of the small buffer on the AD, but I seem to be able to see the same behavior even when I am not streaming media (e.g., generating a square wave) When testing scope record on the Analog 2, I keep getting weird results. Eventually I am able to dial in the settings, but for some reason I can stream the 100MS/s measurement (although not continuously, I guess). And lastly, is the Analog Discovery 3 USB 3.0 capable? That will unlock a lot more bandwidth. Although from what I am seeing we have not maxed out the USB 2.0 speeds yet. One of the other problems I have found when using the Analog 2 is that the device gets fairly warm during use. None of the components are alarmingly hot, but it leave me wondering if any additional measurements are taken to address the heat issue on the AD3. Although a custom 3D-printed case with a fan would easily address this "issue".