Can I do this?

Greetings! Will a DSO Nano V2 enable me to do this:

  1. capture a one-time (non-recurring) waveform of duration 200mS to 1S (I can provide a sync signal to start sampling. I could also provide a signal to indicate when each sample should be taken.)
  2. display said waveform without flicker

Yes,I suggest you use the firmware version of benf , which is more suitable for your application.
It would be very easy to change the firmware.