Porting Fiasco+L4re to DaVinci DA850 - Linux time wrong

Adam Lackorzynski adam at os.inf.tu-dresden.de
Wed May 21 00:50:01 CEST 2014

On Tue May 20, 2014 at 10:47:03 +1000, Peter Howard wrote:
> I've now got L4Linux running on top of Fiasco+L4re on the DA850. However
> there appears to be something wrong with the time.  Time seems to be
> passing at a rate of 10-1 (i.e. 1 elapsed second == 10 reported seconds)
> in Linux.  If I change the default Hz rating  the L4Linux config (from
> 100Hz) in either direction L4Linux either hangs or slows down
> dramatically.  If I change the period in the timer driver (in the Fiasco
> bsp directory) things hang earlier.
> For the Fiasco BSP I'm using:
>       * timer_tick-single-vector for timer_tick_IMPL,
>       * clock_generic for clock_IMPL,
>       * a da850 timer driver for timer_IMPL.
> Can someone enlighten me as to how it should work?

I wonder whether Fiasco's timer has the proper frequency. hello's "Hello
World" should be displayed once a second. Is that the case or is it
more/less often?

Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

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