PIC migration timing problem

On Tue, 20 Jun 2006 22:40:42 -0400, Roman Ziak <news12@ziak.com>
wrote:

>
>Just curious, hos did you determine it was 2x speed ? It is exactly
>twice or approximate ?
>
>Btw. check errata for this chip, it seems it has several problems with
>internal RC oscillator.
>
>http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2057&ty=&dty=Data+Sheets&section=Data+Sheets&ssUserText=PIC18F1320
>
>	Roman

Roman, thanks for the reply. I double checked with a small delay
routine on the 16c54 and 18f1320 and it is exactly 2x speed. Thanks
for the errata link, I'll investigate further.

Regards,
Simon

On Tue, 20 Jun 2006 11:25:07 +0100, PigPOg <simon@capella.co.uk>
wrote:

>Hi, can anyone advise please?
>
>I've migrated code running on a PIC16C54 to a PIC18F1320. Both use an
>external RC network. On the OSC2 pin both processors show a nice clock
>at 25 KHz (which is correct). However, the 18F1320 seems to be
>executing code at twice the speed! Have I overlooked something?
>
>Thanks in advance for any help?
>
>Simon

Gulp! How embarrassing. There's an error in code migration. Fixed now,
sorry to bother everyone - must re-check thoroughly next time before
posting.

Thanks all,
Simon