File | Open | Recording: File not found?

Issues
7

Hi @PFKlammer

Sounds like you are trying to do some very specific sequence of actions in a repeatable way. As I mentioned over on Power on/off relay control, you can get better controlled, unattended operation with a script. My offer to create this script still stands. Just let me know!

If you want to use the UI for this, you will have to click a few buttons and select the filenames manually.

When you open a file, the file becomes the active “Device”. On cancel, the UI currently does not keep information to go back to what it was doing. In 0.4.5, if you want to resume using your connected Joulescope, you will have to select it. I looked at the code, and I modified the UI to defer any changes until AFTER a file is successfully selected which means cancel would just not do anything to the selected device. Done and will be in 0.4.6 :wink:

If you want to record the behavior of your target device at power-on, as it happens in real-time:

  1. Select Current Range = off
  2. Press the Play button (if not already streaming live data).
  3. Press the Record button and select the filename to start recording. Immediately after you press the “Save” button, the file is created and captured data samples are written to the file.
  4. Select Current Range = (your desired current range, such as auto)
  5. Press the Record button to stop your recording.

Alternatively, if your duration of interest is less than 30 seconds, you can use the memory buffer and dual markers to export exactly your region of interest. If not already streaming live data from your Joulescope, press “Play”. Set Current Range = off, wait a moment, set Current Range to your desired range, and capture the power-on data to the buffer. When you have enough data, press Play to stop streaming the live capture data. Use Dual Markers (Right click the x-axis → Annotations → Dual Markers). Then left click on the marker, move it to the start, left click again. Repeat for the other marker to move it to the end. Then right click on a marker, select “Export Data”.

In either case, note that the exported jls file is currently truncated to the nearest multiple of 0.2 seconds.