STM32F4 Discovery function execution time

[Jessica]

Hello,

I need to measure the execution time of a function ( function1() ) in milliseconds and print it. I wrote this code but it just gives me the system ticks. I need milliseconds.

systime_t start,stop, final;
start = chTimeNow();
function ();
stop = chTimeNow();
final = stop - start;
chprintf(chp, Time : %ld.%06ld\r\n",final);

Thank you for your help.
Jessi

[Giovanni]

Hi,

CH_FREQUENCY should allow you to convert. The version in the repository has new macros for this. 2.6.2 should be released next week with the new macros.

Giovanni

[Jessica]

Hi,

CH_FREQUENCY should allow you to convert. The version in the repository has new macros for this. 2.6.2 should be released next week with the new macros.

Giovanni

Thanks for your reply,
I think CH_FREQUENCY is a defined constant. How can I use it?
Where is the repository?

[Tectu]

Where is the repository?

http://chibios.org/dokuwiki/doku.php?id ... s:download


~ Tectu

[Jessica]

Where is the repository?

http://chibios.org/dokuwiki/doku.php?id ... s:download


~ Tectu

Thank you.