f_8_19b_ledtoggle_b.c

来自「* Use 10 MHz crystal frequency. * Use 」· C语言 代码 · 共 32 行

#include "config.h"
#include "delay.h"

// this code illustrates one RIGHT way to toggle
// an LED on or off on each press and release
// of a switch.
// Switch debouncing delay is included.
 
void main(void)
{
  TRISB = 0xEF;		// set RB4 as output  
  RB4 = 0;		// turn RB4 off
  while(1) { 
    // wait for press
    while (RB6); 
    DelayMs(30);  //debounce
    // wait for release
    while (!RB6); 
    DelayMs(30);  //debounce
    RB4 = 1;      //turn on
    // wait for press
    while (RB6); 
    DelayMs(30);  //debounce
    // wait for release
    while (!RB6); 
    DelayMs(30);  //debounce
    RB4 = 0;      //turn off
  }
}