On 23/08/18 10:00, Martin Schreiber wrote:
On Thursday 23 August 2018 11:11:34 Bo Berglund wrote:> On Thu, 23 Aug 2018 09:00:07 +0200, Bo Berglund>> <bo.bergl...@gmail.com> wrote:> >I will need a higher resolution GetTickCount for this...>> Is there in fact a way (on Linux - Raspbian) to get a tickcount with> higher resolution than 1 ms?
On a mid-00s server I'm using clock_gettime(CLOCK_REALTIME which is apparently better than 1uSec, but from previously looking at older PCs and (I think) RPi3 your mileage may vary enormously. AIUI there's been a lot of issues over the years with different cores not having their counters in step, with counter frequency following dynamic clocks rather than being fixed and so on.
The AM2302 datasheet suggests that it's a device to be avoided assiduously. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
