Mario Mendes Jr. wrote:

>I had the same thing happen to me yesterday and it turned out that
>everything was OK, except for the configuration of the oscilator.  The
>ICD2 does not use the configuration bits from your code, but rather the
>configuration set from the configuration menu.
>
Mine does!  And it complains when I have not set some config values.
Yes, you can override the values from the code, but it soes read my 
config code at compile time.

>  The settings in both places need to match.
>
Not true in my experience.

The latest thing with the PIC18F4520 and this exact error is the BOR 
must be turned off.

>Now, I don't know if EVERYTHING needs to match, but I set everything to be
>the same just to be extra sure and it "majically" started working.
>
>-Mario
>
>  
>
>>>Target not in debug mode, unable to perform operation
>>>What is this?
>>>Yes, I read about it in the 'help', and it was typical Gates -
>>>intolerably
>>>flashy code bloat - and zero help.
>>>      
>>>
>>When you select debugger and program the chip, it downloads a monitor
>>along
>>with your program.  The
>>error message means that either the debug bit isn't enabled, or that it's
>>unable to talk to that monitor
>>code.
>>
>>After awhile I formed a mental list of things to try when the ICD won't
>>play.  I say "mental" because
>>mine is inexact.  If I had it written down I would include it here.
>>Mostly
>>has to do with checking
>>that all the power supplies are turned on, and that the ICD cable hasn't
>>fallen out, etc.  Then go
>>to the ICD "properties" and check the voltages it sees, and do the self
>>test.  I know you said the
>>power was on, but cables can break.
>>
>>After all that, the second most likely problem is programming the PIC for
>>an oscillator you don't
>>have.  No clock, PIC won't run, MPLAB can't talk to the monitor, see above
>>explanation.
>>
>>    
>>
>>>To prove something, I loaded the Microchip hexadecimal
>>>file for the C source demonstration program that came
>>>with the PIC dem, and that all worked just fine.
>>>      
>>>
>>I vote for the oscillator setting in the config word.  Open "Config bits"
>>and verify.
>>
>>Barry
>>
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>>
>>    
>>
>
>  
>

-- 
  *
  |  __O    Thomas C. Sefranek   WA1RHP@ARRL.net
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