ChibiOS Free Embedded RTOS

Posted: **Sat Oct 05, 2019 1:23 pm**

I need to generate a wide range of frequencies dynamically and therefore adjusting both ARR and PSC on the fly is necessary, something like this:

gptChangeInterval(gptp, arr);
gptp->tim->PSC  = psc;

RM says PSC can be changed on the fly but is there something in ChibiOS that makes this a bad idea?

Thanks,
Kaj

Posted: **Sat Oct 05, 2019 1:34 pm**

Hi,

The driver is very close to hardware so you can do that. Of course timings are up to you in that case.

Giovanni

Posted: **Sat Oct 05, 2019 4:37 pm**

Excellent, many thanks!

Kaj

Is it allowed to change timer PSC after gptStart?