solarwind escreveu:
> Also, another advantage to using  HI-TECH or Microchip C compilers is
> that their headers are almost, if not completely identical to the
> MPASM headers. That means you can use the address constants just as
> you were using ASM. Example, if you want to access PORTC, just use
> PORTC. If you want RCREG, just use RCREG. If you want AD1ON (a bit in
> ADCON1 I believe), just use it like that with its actual name. Also,
> they have some nice delay stuff there too where you just specify your
> clock frequency in your code and call delay_us or something like that.
> Even still, to use the high level functions like printf, all you need
> to do is impliment putch(unsigned char); in your code and you can use
> pretty much the full functionality of printf in your microcontroller
> code.
>
> Use C.
>   =


I agree.

Years ago, I used to program PICs in assembly only, because of the lack
of good C compilers. I created a library of macros for easing things (I
don't know Olin's library but I think mine should be somewhat
equivalent, although I didn't create a preprocessor).

Now I prefer to program in C. After everything is working I rewrite the
speed/timing/space critical modules in assembly, usually using the
compiler generated code as a start.

I always keep the C modules in sync with their assembly counterparts, so
when I need to port the project to another architecture most of the work
is already done.


For big projects I use cross-development. I create functions for the PC
that are a direct port or emulate/simulate their counterparts in the
PIC. The application modules I write to compile both in the PIC and in
the PC (sometimes with some #ifdef).

This way I can run my application natively in the PC also. That is great
for debugging and accelerates the development cycle.

Regards,

Isaac

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