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  VS Arduino › › › Using debugger in interrupt routine
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Normal Topic Using debugger in interrupt routine (Read 4156 times)
Gilles Plante
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Using debugger in interrupt routine
Mar 6th, 2014 at 4:13pm
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I think I know the answer to my question: is there some way to use the debugger in an interrupt routine ?

As far as I can tell, using When hit breakpoints will fail because from within an interrupt routine, it's not possible to write to the serial port.

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Tim@Visual Micro
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Re: Using debugger in interrupt routine
Reply #1 - Mar 6th, 2014 at 4:16pm
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Hi Giles,

You are right that it needs special handling.

I believe that you can save off a volatile variable then use it within a conditional debug statement in the main code.

If you have mastered conditional breakpoints then you might also find that switching ThrottleEnabled=False will prevent unwanted debug delays.





  
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Gilles Plante
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Re: Using debugger in interrupt routine
Reply #2 - Mar 6th, 2014 at 4:51pm
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Well,

I have never used conditional breakpoints. I guess the condition is on top of When Hit for example. I would have to store, say, a value in a global variable and in loop check if that variable changed ?
  
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Tim@Visual Micro
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Re: Using debugger in interrupt routine
Reply #3 - Mar 6th, 2014 at 6:30pm
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Yes, you can either put the breakpoint inside a normal 'if' statement or add a condition to the breakpoint Condition property.

Switching off the throttle will avoid delays in time critical measurements but only do that if you find the delays cause a problem, It's better with the throttle switched on unless a problem
  
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