On Wed, 19 Oct 2005 10:23:50 +1000, you wrote:

>I have just received a project which originally used the 16F877A. The 
>bulk of the code is in assembler with the user interface written in 
>PBPro. The client wants to add extra features and functions to the 
>existing code base. In doing so I will exceeded the memory capacity of 
>the 877A. I am looking at the 18F4520 as a replacement. The portions 
>written in PBPro are easy to migrate but about 75% of the code is in 
>assembler (although well documented). Aside from jumping in head first 
>and going blind into the project are there any issues or pointers that 
>would make life a whole lot simpler that I should look at before I proceed.
>
>Thanks all.
>
>Antonio Benci.

One potential issue  is that on the 18F you can't change the watchdog prescaler from software (apart
from self-progging the config bits..)

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