any idea how the document, describing code porting from 16f to 18f pics =
is called?
I couldn't find something like that at microchip.
thanx!
tino

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>-----Original Message-----
>From: Michael Rigby-Jones [mailto:Michael.Rigby-Jones@BOOKHAM.COM]
>Sent: Thursday, June 03, 2004 11:00 AM
>To: PICLIST@MITVMA.MIT.EDU
>Subject: Re: [PIC:] drop in replacement for pic 16f876
>
>>-----Original Message-----
>>From: "B=FChler, Martin" [mailto:Martin.Buehler@KEYMILE.COM]
>>Sent: 03 June 2004 09:29
>>To: PICLIST@MITVMA.MIT.EDU
>>Subject: [PIC:] drop in replacement for pic 16f876
>>
>>
>>my code got bigger and bigger, and there is no room left for
>>further improvements of the design, as the 16f876 is
>>completely  full. there is also no way to use the icd
>>debugger, as this one consumes some memory too.
>>
>>as further compression of the code is impossible, I wonder if
>>there is an easy way to replace the 16f876 (28 pin pdip) with
>>anything bigger. I think this has to be something from the
>>18fxxx family.
>>
>>is there a fully pin and function compatible device, that
>>allows me to replace the controller 'in the field', without
>>touching the board?
>>
>>my design uses all pins as digital i/o's and has an icd interface.
>>
>>thank you for your help!
>>tino
>
>
>The 18F252 is pin compatible apart from the low voltage programming pin
>(PGM) which was moved from pin 24 on the 16F876 to pin 26 on the 18F252
>part.  Not a problem if you don't use low voltage programming however.
>
>The part has 16K words of program memory.  Note you will have to use =
the
>ICD2 debugger, the original ICD does not support the 18F parts.
>
>Of coures you will still need to port your 16F code over, but Microchip
>does
>have a document showing the main aspects of porting to the 18F familly =
(but
>I don't know the doc number, sorry!).
>
>Regards
>
>Mike
>
>
>
>
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