On Mon, 24 Feb 2003 13:18:32 -0500, Olin Lathrop wrote:

>>
>> I'm not familiar with the rfPICs but it may be possible to
>> 'cross-wire' from an '877 footprint to an rfPIC target board. This
>> would allow you to mimic the operation of the rfPIC while you develop
>> the code with the bootloader.
>>
>> I've done this for a 16C745 project which let me use an ICD for
>> development (for the non-USB portion, of course). I used conditionals
>> to assemble the code differently for the development and product
>> variations. This mainly involved redefining port equates and the like.
>> Almost all of the code was identical between the two.
>
>The 12C509 has the 12 bit core, wherease the 16F877 has the 14 bit core.
>I wouldn't want to develop code on one for the other.
>

Good point, Olin. The differences could be a lot more significant than
in my case of two 14-bit cores. The instruction mnemonics are somewhat
similar but there are quite a few more features on the '877 that you'd
have to be aware of.


Regards, Bob

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