measuring time between two breakpoints

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jgmdesign
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Posted by jgmdesign: Tue. Mar 17, 2020 - 03:19 AM
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Is there a way to do this?  I would like ot know what the execution time is between two points.  I think theres a stopwatch somewhere in Studio, but not sure

 

JIm

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Last Edited: Tue. Mar 17, 2020 - 03:36 AM
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jgmdesign
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This reply has been marked as the solution. 
Posted by jgmdesign: Tue. Mar 17, 2020 - 03:36 AM
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Nevermind.  It only works in Simulator.  Not in real time debugging.

 

JIm

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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awneil
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Posted by awneil: Tue. Mar 17, 2020 - 09:10 AM
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jgmdesign wrote:
I would like ot know what the execution time is between two points

toggle a pin at the 2 points & measure on a scope ?

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Brian Fairchild
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Posted by Brian Fairchild: Tue. Mar 17, 2020 - 09:56 AM
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Start a spare timer at one point and stop it at the other? Set a breakpoint at the latter and read the timer register.

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awneil
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Posted by awneil: Tue. Mar 17, 2020 - 10:37 AM (Reply to #4)
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Brian Fairchild wrote:
Set a breakpoint at the latter and read the timer register.

Not forgetting to set the timer to stop during "break".

 

Or, if you don't actually want to stop, save it to RAM somewhere for later inspection.

 

You could save multiple values to see if/how it varies ...

 

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillator: https://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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