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'[PIC] MPLAB warning message'
2007\03\13@102638 by Rikard Bosnjakovic

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When trying to program a chip (16F628a), I get this message:

"ICDWarn0033: MPLAB ICD 2 does not support programming this device is
both the internal oscillator and internal MCLR are selected. You may
continue programming, but you are encouraged to cancel, reconfigure
your device, and try again".

This confuses me, because my config is like this:

__CONFIG _CP_OFF & _WDT_OFF & _BODEN_OFF & _PWRTE_ON &
_INTOSC_OSC_NOCLKOUT & _MCLRE_OFF & _LVP_OFF

I.e MCLR is not selected.

I don't want to damage or lock the chip up, rendering it unusable, so
what to do?


--
- Rikard.

2007\03\13@104802 by Thomas C. Sefranek

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-----Original Message-----
From: spam_OUTpiclist-bouncesTakeThisOuTspammit.edu [.....piclist-bouncesKILLspamspam@spam@mit.edu] On Behalf Of
Rikard Bosnjakovic
Sent: Tuesday, March 13, 2007 10:27 AM
To: Microcontroller discussion list - Public.
Subject: [PIC] MPLAB warning message

When trying to program a chip (16F628a), I get this message:

"ICDWarn0033: MPLAB ICD 2 does not support programming this device is
both the internal oscillator and internal MCLR are selected. You may
continue programming, but you are encouraged to cancel, reconfigure
your device, and try again".

This confuses me, because my config is like this:

__CONFIG _CP_OFF & _WDT_OFF & _BODEN_OFF & _PWRTE_ON &
_INTOSC_OSC_NOCLKOUT & _MCLRE_OFF & _LVP_OFF

I.e MCLR is not selected.

Yes, MCLR is NOT selected, so it is INTERNAL!
(Selecting MCLR makes it EXTERNAL.)

I don't want to damage or lock the chip up, rendering it unusable, so
what to do?


--
- Rikard.
--


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2007\03\13@104952 by Kevin Timmerman

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_MCLRE_OFF = internal MCLR
_MCLRE_ON =  external MCLR



At 10:26 AM 3/13/2007, you wrote:
{Quote hidden}

2007\03\13@105649 by Jan-Erik Soderholm

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> _MCLRE_OFF

*External* MCLR is OFF, that is, *Internal* MCLR is enabled.

Jan-Erik.

Rikard Bosnjakovic wrote:
{Quote hidden}

2007\03\13@111311 by Artem Zezyulinskiy / SEDATELEC

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Hi,
MCLRE_OFF meant that EXTERNAL MCLR is not selected. So MCLR is connected
internally to Vdd

Rikard Bosnjakovic a écrit :
{Quote hidden}

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2007\03\13@154239 by michael brown

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Jan-Erik Soderholm wrote:
>> _MCLRE_OFF
>
> *External* MCLR is OFF, that is, *Internal* MCLR is enabled.

Ok that is true, but LVP is off so why is ICD2 complaining?



{Quote hidden}

2007\03\13@164328 by Herbert Graf

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On Tue, 2007-03-13 at 15:26 +0100, Rikard Bosnjakovic wrote:
> When trying to program a chip (16F628a), I get this message:
>
> "ICDWarn0033: MPLAB ICD 2 does not support programming this device is
> both the internal oscillator and internal MCLR are selected. You may
> continue programming, but you are encouraged to cancel, reconfigure
> your device, and try again".
>
> This confuses me, because my config is like this:
>
> __CONFIG _CP_OFF & _WDT_OFF & _BODEN_OFF & _PWRTE_ON &
> _INTOSC_OSC_NOCLKOUT & _MCLRE_OFF & _LVP_OFF
>
> I.e MCLR is not selected.

MCLRE_OFF means you've selected "internal" MCLR.

That said, I've ignored this warning and have been able to continue
successfully programing the parts. However, YMMV. TTYL

2007\03\14@095453 by michael brown

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michael brown wrote:
> Jan-Erik Soderholm wrote:
>>> _MCLRE_OFF
>>
>> *External* MCLR is OFF, that is, *Internal* MCLR is enabled.
>
> Ok that is true, but LVP is off so why is ICD2 complaining?

Anyone?  It seems to me that as long as LVP is off, he shouldn't get
that warning.  Am I wrong?



{Quote hidden}

2007\03\14@105023 by wouter van ooijen

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> Anyone?  It seems to me that as long as LVP is off, he shouldn't get
> that warning.  Am I wrong?

What has LVP to do with the warning you quoted? It mentions OSC and MCLR
settings, not LVP settings.

Wouter van Ooijen

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2007\03\14@105131 by Alan B. Pearce

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>Anyone?  It seems to me that as long as LVP is off,
>he shouldn't get that warning.  Am I wrong?

No, the warning he gets complains about the oscillator being internal, and
the MCLR not being available to the ICD2 to be able to control the chip when
going into program mode. This is nothing to do with LVP mode.

2007\03\14@105813 by michael brown

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wouter van ooijen wrote:
>> Anyone?  It seems to me that as long as LVP is off, he shouldn't get
>> that warning.  Am I wrong?
>
> What has LVP to do with the warning you quoted? It mentions OSC and
> MCLR settings, not LVP settings.

Isn't that the only time it's a problem?  I was under the impression
that unless LVP was enabled that the MCLR/INTOSC thing wasn't an issue.
Or is this just another manifestation of the same problem of the
programmer simply being unable to bring up MCLR before Vcc?

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