Guanghui, Cheng wrote: > On Thursday 05 November 2009 07:53:26 Gilles Chanteperdrix wrote: >> Guanghui, Cheng wrote: >>> Hello: >>> I need to use hpet device as my clock event source in my os >>> and i have mapped this device to local place. But when i read the >>> configuration or value all the bit is 1. Is it something wrong? >> Excuse me, but what is the relation with Xenomai? > Sorry and maybe it is not a direct topic about the Xenomai > but about the real-time systems. I have traced Xenomai at least > for 4 years and read every mail from this maillist. HPET is a very > good internal timer source for real-time systems. Hopefully there > are some people doing HPET issue. If there is no guy about > this work please ignore this mail. This is clearly off-topic for Xenomai. And note: HPET is not the best timer source as it doesn't scale (in contrast to LAPIC timers). Jan