>Reginald Neale wrote:
>[snip]
>> Why can't I tweak the internal oscillator on a 12C671/JW part? I'm using
>> the standard header file with MPLAB and a PicStart Plus. My code is:
>>
>>     org     0x00
>>     movlw   0xXX
>>     movwf   OSCCAL
>>
>> But no matter what I put in for XX, the osc freq doesn't change. I must be
>> overlooking something pretty basic.
>> Reg Neale
>
>Reg - -
>I don't program the 12C671, but the chips that I do program require
>that the OSCCAL value be placed at the top location in memory.
>
>    ORG     0x1FF
>    MOVLW   0xXX
>    ORG     0x000
>    MOVWF   OSCCAL
>
>Hope that this helps you,
> - Nick -

Thanks, Nick. The top location for this part is 0x3FF. I did try that.
Didn't seem to cause any change. Maybe I'm screwing something else up.

Reg