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 when
> the debugger is halting the PIC. This continuously fires the timer1
> overflow interrupt and I get into the ISR when stepping over/into next
> instructions.
> =

> 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 clock
>  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.


> =

> /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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