pict10c.c

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//<pre>
// PICT10c.C
//
// An extension of Peter A's flash program (finally works!)
// demonstrates bit manipulation
//
// Using '84 on a board (simple solderless breadboard with
// 16F84 on it) and Peter Anderson's include file with 
// port/bit definitions (defs_f84.h available at www.phanderson.com)
// Settings:
// 	4Mhz resonator (not important)
//	All Port A inputs use external pullups (resistor SIP used)
//	Port B outputs tied to a LED array (Radio Shack has 'em)
//	Port A inputs tied to ground through four switches
//	(pullups still are on them - makes it all work!)
//	This demo only uses ra0 as an input and rb1 as an output
//	Flip switch on A0 and it should light B1
//
#case
#include <16f84.h>
#include <defs_f84.h>  // defines registers and bits
#fuses xt,nowdt,put,noprotect


void main(void)
{
   trisb1=0;   // make rb1 an output
   trisa0=1;   // make ra0 an input
   while(1)  // always
   {
      if(ra0==1)
          rb1 = 1;
      if(ra0==0)
         rb1 = 0;
     
   }
}