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  VS Arduino › Visual Micro › Usb/Serial/WiFi Debugging › No COM ports in drop down list
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Very Hot Topic (More than 25 Replies) No COM ports in drop down list (Read 14978 times)
RalphF
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Re: No COM ports in drop down list
Reply #20 - Jun 19th, 2018 at 9:33pm
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I set Action to log message 'break test' to output window but it doesn't show up.

I think we have a problem with the message:

Launching Debugger...
Debugging has exited

Something is causing the debugger to exit and not be able to break.
  
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Tim@Visual Micro
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Re: No COM ports in drop down list
Reply #21 - Jun 19th, 2018 at 9:33pm
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Great thanks.

Don't set any breakpoint properties it was just a question. if you set a "message" then it auto enabled the "continue execution" checkbox which will confuse things for you.

Auto debugging is on by default.

Debug can only exit if the serial/usb disconnects so that is the issue. The debugger needs a reliable serial connection.

  
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RalphF
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Re: No COM ports in drop down list
Reply #22 - Jun 19th, 2018 at 9:37pm
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My com4 port works fine when I run in Release mode. The serial windows connects successfully. I can change the code and see the changes.

When I switch to Debug mode, the serial window fails to connect. That's probably related to the debug trace message:

Launching Debugger...
Debugging has exited

I still don't have something set up correctly for debug mode.
  
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Tim@Visual Micro
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Re: No COM ports in drop down list
Reply #23 - Jun 19th, 2018 at 9:44pm
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Make sure you didn't change any other settings. Worth clicking vmicro>debugger>reset settings

  
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RalphF
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Re: No COM ports in drop down list
Reply #24 - Jun 19th, 2018 at 9:59pm
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I did a debug reset but still the same results: serial window fails to connect to com4 port with the same message:

Launching Debugger...
Debugging has exited

Release mode connects fine and works fine.

I tried a different USB cable with the same results.

What about the debug serial speed? Is 115200 too fast? I set 57600 in the vmicro->debug menu but the serial window still opens at 115200.
« Last Edit: Jun 19th, 2018 at 10:02pm by RalphF »  
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Tim@Visual Micro
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Re: No COM ports in drop down list
Reply #25 - Jun 19th, 2018 at 10:03pm
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No 115200 is the default that everyone uses.

I suggest use your board in release mode for a while and get to know it. I think the solution will then become obvious. 

I will try a teensy 3 when I get a chance but it's not normally an issue.
  
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RalphF
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Re: No COM ports in drop down list
Reply #26 - Jun 19th, 2018 at 10:09pm
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I've been using my board in release mode for the last two days...just recently needed to get into the debug mode to do some deeper checking when I discovered debug wasn't working.

The Blink sketch is pretty simple. Not much to it. If it doesn't work in debug mode, me playing around with it in the Release mode isn't going to 'show me a solution' to the debug problem I am having I don't think.

So it sounds like I am stuck and can't use the debugger.
  
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Tim@Visual Micro
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Re: No COM ports in drop down list
Reply #27 - Jun 19th, 2018 at 10:14pm
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I see, I thought from what you said at first you had been programming without com ports or upload so was confused.

The debugger is a simple serial system, nothing clever. It might be the teensy doesn't like the DTR being enabled for debug. There is a debug option to switch that off as with most settings but have run out of time to look at this more for a few days.
  
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RalphF
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Re: No COM ports in drop down list
Reply #28 - Jun 20th, 2018 at 12:05am
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Just an FYI

I switched boards to a Ardunio Nano and I can debug the Blink sketch.

Here is the output window text. I can press F10 and run to the next break point in the loop(). F10 step doesn't seem to step but that's OK as it does stop at the two break points I put in the loop() code block.

So something must be wrong with the Teensy boards.

Here is the output from the Blink debug session:

Launching Debugger...
Program Running 'Blink1'
17:02:33.566    Blink1.ino, line 25      loop()
Blink1 is paused at Blink1.ino, line 25, loop()
Blink1 Running
17:02:39.302 [up:08s:828ms perf:1100ms]   Blink1.ino, line 28      loop()
Blink1 is paused at Blink1.ino, line 28, loop()
Blink1 Running
17:02:44.003 [up:13s:504ms perf:0ms]   Blink1.ino, line 25      loop()
Blink1 is paused at Blink1.ino, line 25, loop()
Blink1 Running
17:02:49.269 [up:18s:768ms perf:1100ms]   Blink1.ino, line 28      loop()
Blink1 is paused at Blink1.ino, line 28, loop()
« Last Edit: Jun 20th, 2018 at 12:06am by RalphF »  
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RalphF
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Re: No COM ports in drop down list
Reply #29 - Jun 20th, 2018 at 4:22am
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I switched cables and finally got my Teensy 3.2 to work in debug mode.
  
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Tim@Visual Micro
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Re: No COM ports in drop down list
Reply #30 - Jun 20th, 2018 at 10:12am
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Well done and thanks for the update.
  
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