On Fri, Mar 11, 2011 at 4:16 PM, Oli Glaser <oli.glaser@talktalk.net> wrote=
:
> On 11/03/2011 10:34, Manu Abraham wrote:
>> I am not really very sure, whether the port pins need to be setup for
>> ICD. I had a quick look at the ICD2 user guide but didn't see any
>> place mentioning that, maybe I overlooked. I will try looking again on
>> that aspect.
>
> Have a look in the 18F452 datasheet under the config bits - there should
> be a bit to enable the pins to be used for debugging rather than general =
IO.


Yes, thanks for the pointer. Bit:7 CONFIG4L (/DEBUG)
/DEBUG =3D 1 Background debugger disabled
/DEBUG =3D 0 debugger enabled

So, I have now additionally:

#pragma config DEBUG =3D ON


But, still debugging doesn't seem to work.


Connecting to MPLAB ICD 2
....Connected
Setting Vdd source to target
Target Device PIC18F452 found, revision =3D c0
....Reading ICD Product ID
Running ICD Self Test
....Passed
MPLAB ICD 2 ready for next operation
Resetting Target
MPLAB ICD 2 ready for next operation
ICD0083: Debug:  Unable to enter debug mode.  Please double click this
message for more information.
ICDWarn0015: Program memory has changed since last program operation?
Continue with Debug operation?
Running Target
ICD0083: Debug:  Unable to enter debug mode.  Please double click this
message for more information.
ICD0069: Debug:  Unable to run target
MPLAB ICD 2 ready for next operation
--=20
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