On Tue, Sep 11, 2012 at 4:19 PM, Kelvin Lawson <i...@atomthreads.com> wrote:
> Hi Ashwin,
>
> >> I would confirm that the timer interrupt is occurring. The timer ISR
> >> is in atomport.c (TIMER1_COMPA_vect).
> >
> > Thanks for the reply. Yes timer interrupts are occurring but by default
> > scheduler is not called. It works by calling scheduler in timer
> interrupt.
>
> If you replaced the standard Atomthreads timer ISR with an alternative
> one that didn't call the scheduler then that makes sense.
>
Actually I havn't replaced timer. Here is diff for working case.
diff --git a/atomthreads/kernel/atomtimer.c b/atomthreads/kernel/atomtimer.c
index 3693295..91eb053 100755
--- a/atomthreads/kernel/atomtimer.c
+++ b/atomthreads/kernel/atomtimer.c
@@ -68,7 +68,7 @@
#include "atom.h"
/* Data types */
@@ -299,7 +299,7 @@ void atomTimerTick (void)
{
/* Increment the system tick count */
system_ticks++;
-
+ atomSched(TRUE);
/* Check for any callbacks that are due */
atomTimerCallbacks ();
}
>
> Thanks,
> Kelvin.
>
>
> >> > I am new to embedded and have very little experience but I'm
> very
> >> > enthu abt it. Few days back I bought Arduino Uno with 32KB memory and
> >> > 16Mhz.
> >> > Later I found atomthread multi threading RTOS kernel on Internet. By
> >> > changing some configuration port file for avr in the kernel I am able
> >> > to run main thread (Thanks for excellent documentation).
> >> > Even I have ported some cpp files from arduino to kernel and did some
> >> > changes in Makefile to run LED blinking
> >> > code in thread context that that too worked :-). I am using default
> uart
> >> > port provided by atomthread and its working.
> >> > Even I am using printf for printing on serial port but I dont knw
> >> > whether
> >> > should I use printf or prinf_P but it working.
> >> >
> >> > Even I am able to create multiple threads and I can see all the prints
> >> > in
> >> > those thread. But I am not able to use atomTimerDelay
> >> > in threadContex. Thread is going in hang state when I call this
> >> > function.
> >> > Here do I need to do some time call to so ??
> >> > Even when thread contex is over then this thread is recreated or board
> >> > is
> >> > re-booted. Is something wrong with scheduler or timer ??
> >> >
> >> > --
> >> > With Regards,
> >> > Ashwin Vasani
> >> > +91 8446611430
>
--
With Regards,
Ashwin Vasani
+91 8446611430
