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Date: Thu, 18 Sep 2003 07:32:00 -0000
From: Satish Kumar <satish@bvt.sc.sanyo.co.jp>
To: ecos-discuss@sources.redhat.com
Message-Id: <20030918163134.48B5.SATISH@bvt.sc.sanyo.co.jp>
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X-OriginalArrivalTime: 18 Sep 2003 07:32:04.0578 (UTC) FILETIME=[F5146420:01C37DB6]
Subject: Re: [ECOS] isr routine does not invoke for RTC interrupt
X-SW-Source: 2003-09/txt/msg00313.txt.bz2


well, i have done only the platform porting for my target board which
has a arm926ej-s core.
my hal_clock_xxxx routines are making use of system timers and not the
real time clock. 
i have done some hard-core debugging to some extent and
found that, the corresponding interrupt is generated for the down-count
timer, and the corresponding interrupt bits are set in the vector
registers and the timer registers..and also the correct isr routine is 
attached to this vector, but it does not enter the RealTimeClock::isr ()
routine when the interrupt is generated.

   when i run the clcoktruth.cxx program in the kernel/tests directory;
my programs hangs in the while loop:

      // First, print 100 lines as fast as you can, of distinct ticks.
    for ( i = 0; i < 100; i++ ) {
        now = rtc->current_value_lo();
        then = now;
        while ( then == now )
            now = rtc->current_value_lo();

        diag_printf( "INFO<time now %8d>\n", now );
    }

the now value is never updated, i.e the rtc fails to read the current counter
value..

i m just not gettin why the isr routine is not called..!!


someone help plzz
satish


On Wed, 17 Sep 2003 11:57:11 +0100
"Robert Cragie" <rcc@jennic.com> wrote:

> As I mentioned before, look at the hal_clock_xxx routines for your
> platform - these will tell you which timer and interrupt vector is being
> used. If you have done a port yourself, maybe there is a problem here.
> 
> You still seem to be getting confused with the RTC and the timers used for
> eCos 'clocks'.
> 
> Robert Cragie, Design Engineer
> _______________________________________________________________
> Jennic Ltd, Furnival Street, Sheffield, S1 4QT,  UK
> http://www.jennic.com  Tel: +44 (0) 114 281 2655
> _______________________________________________________________
> 
> > -----Original Message-----
> > From: ecos-discuss-owner@sources.redhat.com
> > [mailto:ecos-discuss-owner@sources.redhat.com]On Behalf Of Andrew Lunn
> > Sent: 17 September 2003 11:26
> > To: Satish Kumar
> > Cc: ecos-discuss@sources.redhat.com
> > Subject: Re: [ECOS] isr routine does not invoke for RTC interrupt
> >
> >
> > On Wed, Sep 17, 2003 at 07:17:26PM +0900, Satish Kumar wrote:
> > > Ok,
> > >      i have used the system timer and not the RTC..the interrupts are
> > > gettin generated , but the isr routines are not being called..what could
> > > be the reason..?
> >
> > 1) You are using the wrong interrupt vector
> > 2) You are not enabling the interrupt in the interrupt controller.
> > 3) You have all interrupts disabled for some reason.
> >
> > Make sure you have asserts enabled. Then check which vector its
> > registering the interrupt handler on.
> >
> >       Andrew
> >
> > --
> > Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> > and search the list archive: http://sources.redhat.com/ml/ecos-discuss
> >
> >

-- 
Satish Kumar <satish@bvt.sc.sanyo.co.jp>

--------------------- Original Message Ends --------------------

-- 
Satish Kumar <satish@bvt.sc.sanyo.co.jp>


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