pict11c.c

来自「to light a ledfdssssssssffffffffffffffff」· C语言 代码 · 共 42 行

//<pre>
// pict11c.c
//
// Implementation of the PICT11.ASM program in Easy Pic 'N
// event counting demo
//
//
// 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!)
//	You turn A0 on and off and the count appears on the LED bar

#case
#include <16f84.h>
#include <defs_f84.h>  // defines registers and bits
#fuses xt,nowdt,put,noprotect


void main(void)
{
   int count=0;

   TRISA=0x1f;   // make porta all inputs
   TRISB=0x00;   // make portb all outputs
   PORTB=0;
   while(1)
   {
     while(ra0==0);
     while(ra0==1);
     count++;
     PORTB=count;
   }
}