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fossasia / pslab-android

PSLab Android App https://play.google.com/store/apps/details?id=io.pslab
https://pslab.io
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Logic Analyzer: results on all 4 channels are shown even though only one channel is physically connected #2523

Closed marcnause closed 4 days ago

marcnause commented 3 months ago

Actual Behaviour

The Logic Analyzer displays results for all 4 channels, even though only LA1 is physically connected to a source.

Expected Behaviour

The Logic Analyzer only shows a result for channels which are connected to a source.

Steps to reproduce it

  1. Connect LA1 to Square Wave 4
  2. Open app (if it has not opened automatically
  3. Select Wave Generator
  4. Set frequency and duty cycle for Square Wave 4
  5. Press "play" symbol on top of screen
  6. Select Logic Analyzer
  7. Change Channel Selection to 4
  8. Press "Analyze" button

Screenshots of the issue

Screenshot_20240804-222355

Would you like to work on the issue?

Maybe

Additional information

I tested with PSLab v5 with firmware version 3.0.2.

marcnause commented 2 months ago

I tested again. I selected 4 channels.

If connected to LA1 I get the same result as described above. If connected to LA2 I get a result for LA2 only. If connected to LA3 I get a result for LA3 only. If connected to LA4 I get no result.

I also tried with 3 channels. If connected to LA1 I get results on LA1, LA2 and LA3 If connected to LA2 I get a result for LA2 only. If connected to LA3 I get no result.

AsCress commented 2 months ago

@marcnause Thanks for testing ! These are exactly the kind of outputs that I'm getting with the V6.