[ECOS] Problems with Insight on iq80310

[ECOS] Problems with Insight on iq80310

[Herb]

Anyone else seeing debug problems on Xscale when using Insight to debug
with a Redboot ROM?

My assembly looks ok, but stepping through it results in erratic
behavior.

GDB -nw works find, but I'd really like to use the graphic interface if
anyone has any ideas on this one.

Thanks.

Herb Ledebohm   512-401-8208 x144
Omegaband, Inc  herb@omegaband.com

Re: [ECOS] Problems with Insight on iq80310

[Jonathan Larmour]

Herb wrote:
> 
> Anyone else seeing debug problems on Xscale when using Insight to debug
> with a Redboot ROM?
> 
> My assembly looks ok, but stepping through it results in erratic
> behavior.
> 
> GDB -nw works find, but I'd really like to use the graphic interface if
> anyone has any ideas on this one.

Without details no-one can tell for sure what you are on about!

If the "erratic behavior" is the flow of code appearing to jump around
randomly between lines, then this is a common side-effect of trying to
debug optimized code. If you compile your code without optimization, that
should go away.

Jifl
-- 
Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine

Re: [ECOS] Problems with Insight on iq80310

[Herb]

I'll be more specific next time, sorry.

Thanks for the tip.  That was the problem.

Jonathan Larmour wrote:
> 
> Herb wrote:
> >
> > Anyone else seeing debug problems on Xscale when using Insight to debug
> > with a Redboot ROM?
> >
> > My assembly looks ok, but stepping through it results in erratic
> > behavior.
> >
> > GDB -nw works find, but I'd really like to use the graphic interface if
> > anyone has any ideas on this one.
> 
> Without details no-one can tell for sure what you are on about!
> 
> If the "erratic behavior" is the flow of code appearing to jump around
> randomly between lines, then this is a common side-effect of trying to
> debug optimized code. If you compile your code without optimization, that
> should go away.
> 
> Jifl
> --
> Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
> Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine

[ECOS] Count and Clock?

[YuHsueh Chou]

Hello all,

   what is defferent between count and clock in eCos reference Manual?
may you take an example for me. thanks a lot for your response..

   Tom Chou

Re: [ECOS] Count and Clock?

[Jonathan Larmour]

YuHsueh Chou wrote:
> 
> Hello all,
> 
>    what is defferent between count and clock in eCos reference Manual?
> may you take an example for me. thanks a lot for your response..

Counters can be incremented as and when, whereas clocks are a special case
of counter that are regularly periodic. Clocks are counters with a
resolution. That resolution gives you the period between the regular clock
ticks.

A clock example is, of course, the kernel real time clock which is
periodic.

Alarms are associated with counters, not only clocks (which are just a
special form of counter). So you can use this to cause an alarm handler to
run after the counter reaches a certain value, e.g. every 10 events.

Jifl
-- 
Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine