> Ruben J=F6nsson wrote:
> >>
> >> Ruben J=F6nsson wrote:
> >>> Hi,
> >>>
> >>> I am using a PIC18F2525 with MPLAB 8.30 and ICD3 and I am trying to
> >>> debug code using Timer1.
> >>>
> >>> I use an ceramic resonator at 20MHz and have set OSC=3DHS. Timer1 is
> >>> configured to run in timer mode with FOSC/4 as clock. However, when I
> >>> single step with timer1 on, the timer seems to be free running even w=
hen the
> >>> debugger is halting the PIC. This continuously fires the timer1 overf=
low
> >>> interrupt and I get into the ISR when stepping over/into next instruc=
tions.
> >>>
> >>> The timer works as expected when I try the code with the simulator.
> >>>
> >>> So, when the debugger (ICD3) is halting the processor - should timer1
> >>> continue counting?
> >>>
> >>> Actually, looking at Timer0 it has the same behavior - still counting
> >>> when the processor is halted.
> >>>
> >>> Is it not possible to debug with ICD3 using a ceramic resonator as cl=
ock
> >>>  source?
> >> I do not know about the timer in debug, but it would surprice me
> >> a lot if it doesn't work the same with a normal quarts crystal...
> >>
> >> Jan-Erik.
> >>
> > =

> > So it means that you can't use an external clock source to debug periph=
erals
> > that uses FOSC as clock with ICD3? =

> =

> No. You asked about a *ceramic resonator* and I do not think
> it has anything to do with that. I said nothing else then that...

No, I asked why the timer continued to run while the pic is halted by the =

debugger.

I mentioned the ceramic resonator because that is what I clock the PIC (and=
 the =

timer) with.

Anyway, problem is solved.

/Ruben=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D
Ruben J=F6nsson
AB Liros Electronic
Box 9124, 200 39 Malm=F6, Sweden
TEL INT +46 40142078
FAX INT +46 40947388
ruben@pp.sbbs.se
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D

-- =

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