Time loops in CCS

Tunfiskur · Joined: 01 Jun 2012 Posts: 13

Hey, i'm looking for a way to get programs execution time in CCS if that is possible. Something like clock_t start = clock(); clock_t ends = clock(); in c++ visual, or even like ardoino's millis() function. I have been browsing the forums, and CCS manual without results.

I need to have access of the time in the pic itself, e.g not use simulation in mplab for example.
any help or pointers appreciated ,Thanks

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temtronic · Posted: Sat Jun 09, 2012 10:27 am

One way is to have an ISR for a timer. Every other trigger, captures the counts and sets a flag. Within 'main', test that flag, if set, display the counts, resets the flag, count, etc.
You can have a 'start flag' as well as an 'end flag' for testing.
Depending on how you setup the timer and length of 'one loop' of code, the 'counts' will tell you the time it takes. Clever coding can allow the counts to be actual us, ms or seconds.

There is an example that CCS supplies in the examples folder for a 'stopwatch' that may be of help to you.

dyeatman · Joined: 06 Sep 2003 Posts: 1924 Location: Norman, OK

PCM usually recommends using MPLAB It has that capability.
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temtronic · Posted: Sat Jun 09, 2012 1:19 pm

and if you're a real PICaholic.....dump the listing and count the cycles per loop.....old school..but tried and true !!

jgschmidt · Joined: 03 Dec 2008 Posts: 184 Location: Gresham, OR USA

You might also look at #use timer and the get_ticks() and set_ticks() functions. I use this for longer running processes like timing how long it takes to write a file to an SD card. Be sure to check the compiler warnings to get the actual tick time.
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