Access propeller's clock

sdiguana

I'm trying to create a kinematic model for my new activity bot, and want to go from velocity to position ... of course there is a pesky "t" in the equation! '

any suggestions on how i can get there? Ive figured out i can do input(23) from reading the silkscreen near the SD Card, but i dont know much of what to do with it from there.

I saw a Timing I/O Lab in one of the PDFs but it appears to be in SPIN..? since all of the tutorials ive done so far are in Simple IDE (C), it seems im at a loss.

sdiguana

happened across another thread referencing this. wish i had found it sooner!

For the curious:

#include <time.h>       /* clock_t, clock, CLOCKS_PER_SEC */
  clock_t t;
  t = clock();
// do stuff
  t = clock() - t;
t = (((float)t)/CLOCKS_PER_SEC)

SRLM

You can also access the CLKFREQ variable directly via #include "propeller.h". Here are a few useful examples:

Scheduler to make something happen every n ms (roughly): https://github.com/libpropeller/libpropeller/blob/master/libpropeller/scheduler/scheduler.h
Stopwatch to time how long something took (up to ~53 seconds at 80MHz): https://github.com/libpropeller/libpropeller/blob/master/libpropeller/stopwatch/stopwatch.h