Long shot but maybe the 'Factory Calibration' value is missing. This should
be a RETLW command in the last word of the device. Long thread some time
back explaind how it gets trashed on a UV-erase and how to recalibrate the
PIC if it was erased.

Oliver.

----- Original Message -----
From: Matt Willman <mattwillman@NETSCAPE.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, September 20, 2000 6:42 PM
Subject: [PIC]: 12c672 using internal oscillator?


>
> I want to use the internal oscillator for the 12c672 and using the
template
> code that I found on Micrchip's website my code runs in a continuous loop!
> What do I need to do to correct this problem?
>
> This is the template code:
>
> ; these first 4 instructions are not required if the internal oscillator
is
> not used
> MAIN CODE
> start
> call 0x7FF ; retrieve factory calibration value
> bsf STATUS,RP0 ; set file register bank to 1
> movwf OSCCAL ; update register with factory cal
> value
> bcf STATUS,RP0 ; set file register bank to 0
>
>
> ; remaining code goes here
>
>
> The "call 0x7FF" sends my code in a loop. Am I suppoed to supply something
> else to the code or what?
> or do I even need this line of code?
>
> Please help.
>
> Thanks,
> Matt
>
>
>
>
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