> Can someone please direct me to some examples of C code for the PIC?
> Or better yet, a "How to program microcontrollers in C" book would be
> great.
>

http://www.phanderson.com/PIC/PICC/


> I've been dinking around with MPASM for a while now and am pretty new to
> C programming.  I'm having trouble figuring out how to map the
> abstraction of a high level language to the specific microprocessor at
> hand.
>
> For instance ... in HT-Softs PICCLite, printf() calls sprintf( stdout,
> ...)
> I can't for the life of me figure out where stdout is defined.  If I was
> interfaced to a VT100 I wouldn't hardly care, but there is no way that
> the compiler could know that the stdout I had in mind was a 4 by 7-seg
> LED display.  So, I began to write my own dispout().  How do I pass in a
> float or int or char and make dispout do the right thing on an 8 bit
> micro???
>

Sorry, don't know anything about HTech's compiler.  The CCS PCM allows you
to replace that "output stream" argument with a function that accepts bytes
and returns void.  This allows you to do anything you want with printf's
output, thusly:

 void OutChar(BYTE byCharacter) {
      static int s_nCurrentLED=0;

     s_nCurrentLED %= TOTAL_LEDS_IN_SYSTEM;

     LEDMultiplexerEnable(s_nCurrentLED++);

     PutLEDPort(byCharacter);

}

void main(void) {
      int nIndex;

    for (nIndex=0;nIndex < 0x45;++nIndex) {
         printf(OutChar,"%d",s_nCurrentLED);
    }

}


> The only books I've found regarding microcontroller programming in C are
> Motorola or ByteCraft specific.  A more general guide is what I'm
> looking for.

I think you're going to be disappointed here.  The very strength of a
microcontroller is in its specifics.  I have never seen a compiler targeted
for a microcontroller without specific hooks to take advantage of
particulars in the microcontroller.  Well, 'cept for GCC, and the like.

-d

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