On 17.12.2015 11:31, Privat wrote: > Dear Ecos Developers and Maintainers, > > i have a question regarding the real time clock. > I have a FreeSacle which runs at 116 Mhz, which means i have 1 000 000 > 000 ns / 116 000 000 or 8ns per cycle.
Is it a Kinetis? > > I set the dividend to 1000, and the divisor to 116 which following the > documentation (http://ecos.sourceware.org/docs-2.0/ref/kernel-clocks.html) > - should always yield the ratio of ns between clock ticks. > Unfortunatly that does not result in correct values. > > Strange as it sounds, the default works near perfect. > But reading the realtime clock resolution i got a dividend 1000000000 > and a divisor of 1000 - which would be correct for a 100 Hz processor. > > Any help or advice is welcome. I would also like to know, how the system > is able to derive its own cyclerate. > > Regards Picasso > -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
