Clock ticks

[Joel Sherrill <joel@OARcorp.com>]

Daniel Gustafsson wrote:
> I tried to change _CLOCK_SPEED in boardinit.S from 14 to 20 but nothing
> happens (have done a "make all install"). The timing is still wrong. Any
> ideés?

linkcmds is not a dependency on relinking.

cd build
rm -f `find . -name "*.exe"`
make all install

--joel

> //Daniel
> 
> 
> 
> 
>>-----Original Message-----
>>From: Joel Sherrill <joel at OARcorp.com> 
>>[mailto:joel.sherrill at OARcorp.com] 
>>Sent: Friday, January 21, 2005 2:52 PM
>>To: Daniel Gustafsson; rtems-users at rtems.com
>>Subject: Re: Clock ticks
>>
>>Daniel Gustafsson wrote:
>>
>>>We are using ERC32 with 20Mhz but don't get the right 
>>
>>timing. What shall
>>
>>>CONFIGURE_MICROSECONDS_PER_TICK be in our system?
>>
>>Check the value of _CLOCK_SPEED when it is being set in boardinit.S
> 
>>from this BSP.  It appears to default to 14 to indicate 14 Mhz.
> 
>>--joel
>>
>>
>>>//Daniel
>>> 
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From: Joel Sherrill <joel at OARcorp.com> 
>>>>[mailto:joel.sherrill at OARcorp.com] 
>>>>Sent: Friday, January 21, 2005 1:21 PM
>>>>To: Ralf Corsepius
>>>>Cc: Daniel Gustafsson; RTEMS Users
>>>>Subject: Re: Clock ticks
>>>>
>>>>Ralf Corsepius wrote:
>>>>
>>>>
>>>>>On Fri, 2005-01-21 at 10:52 +0100, Daniel Gustafsson wrote:
>>>>>
>>>>>
>>>>>
>>>>>>How do I inform Rtems 4.6.2 that I am running on a 20Mhz CPU.
>>>>>>
>>>>>>I've tried to alter MICRO_SECONDS_PER_TICK but i can't 
>>>>
>>>>figure out how it is
>>>>
>>>>
>>>>>>done properly (correct value).
>>>>>
>>>>>It's highly BSP and target specific. Which target, which BSP are you
>>>>>using?
>>>>
>>>>If memory servers, they are on a SPARC/ERC32.  It should work
>>>>because the BSP will do math in the clock driver to convert the
>>>>configured value into the value used to program the timer.
>>>>
>>>>The constant you are using should be CONFIGURE_MICROSECONDS_PER_TICK
>>>>and it should be set BEFORE you include confdefs.h.
>>>>
>>>>--joel
>>>>
>>>
>>>
>>	
>>
>>-- 
>>Joel Sherrill, Ph.D.             Director of Research & Development
>>joel at OARcorp.com                 On-Line Applications Research
>>Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>>   Support Available             (256) 722-9985
>>
> 
>>
> 


-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
    Support Available             (256) 722-9985