Re: [Xenomai-core] preemptive doesn't work

[Roberto Bielli <roberto.bielli@domain.hid>]

here is some logs.

status=on:setup=616:clock=509343446344:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=509413956366:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=509461811116:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=509493738137:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=509642692217:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=509889401336:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=509959233537:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=510033716418:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=510083589650:timerdev=mxc_timer1:clockdev=mxc_timer1
root@domain.hid# cat /proc/xenomai/timer
status=on:setup=616:clock=510145433674:timerdev=mxc_timer1:clockdev=mxc_timer1

Il 10/04/2012 14:12, Gilles Chanteperdrix ha scritto:
> On 04/10/2012 02:11 PM, Roberto Bielli wrote:
>> Il 10/04/2012 14:06, Gilles Chanteperdrix ha scritto:
>>> On 04/10/2012 02:05 PM, Roberto Bielli wrote:
>>>> Hi Gilles,
>>>>
>>>> i added this in configure of xenomai so i pass --enable-arm-mach=imx25
>>>>
>>>> imx25)        arch=5
>>>>                tsc_type=__XN_TSC_TYPE_FREERUNNING;;
>>>>
>>>> Furthermore in plat-mxc/include/mach/mxc.h explain which are cpumx2 and
>>>> imx25 is NOT mx2
>>>> #define cpu_is_mx2()    (cpu_is_mx21() || cpu_is_mx27())
>>>>
>>>> i don't understand a things.
>>>> Does the tsc necessary to calculate correct timer period, or can i
>>>> disable tsc and xenomai continue work correctly ?
>>> Xenomai needs the tsc in kernel-space. Obviously, if you do not use the
>>> tsc in user-space, you will not see that it is wrong. Correct physical
>>> address is only needed for user-space.
>>>
>>>> However i cannot use tsc in my simple application. I resend the simple C
>>>> application that doesn't work.
>>> What do you mean you can not use the tsc in your application? What
>>> happens if you use it?
>>>
>> If i use tsc i have no error and i read a correct value.
>>
> So, it works. Good news. To know if it works as expected, you can try
> the "latency" test.
>
> Something I have not asked, could you type:
> cat /proc/xenomai/timer
>
> on the mx25 board?
>


-- 
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Roberto Bielli
Sviluppo Software					
Axel S.r.l.					
							
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Varese - Italy					
							
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E-mail:   roberto.bielli@domain.hid	
Web Site: www.axelsw.it

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