Timer1

#include "timer.h"
unsigned int g_timer_tick = 0;

#ifdef IS_INTERRUPT
#pragma vector = T1_VECTOR
__interrupt void T1_ISR(void)
{
  g_timer_tick++;
  IRCON &= ~(1<<1);
}
#endif
void clear_timer_tick(void)
{
  g_timer_tick = 0;
}
unsigned int get_timer_tick(void)
{
  return g_timer_tick;
}
void Timer1_Init(void)
{
#ifdef IS_INTERRUPT

  //定时器方式
  T1CTL &= ~( (3<<0) |(3<<2) );
  T1CTL |= ((1<<0) | (1<<2) );
  IEN1 |= 1<<1;
  IEN0 |= 1<<7;
#else

  /* 系统时钟是16MHZ
  ** 8分频
  ** 当达到计数0xffff，IRCON.T1IF置1   时间1S
  */ 
 //查询方式
  T1CTL &= ~( (3<<0) | (3<<2) );
  T1CTL |= ((1<<0) | (1<<2) );
#endif
  
}

#ifndef IS_INTERRUPT
bool ircon_state(void)
{
  if (IRCON&(1<<1))
  {
    IRCON &= ~(1<<1);
    return true;
  }
  return false;
}
#endif

//头文件===================================
#ifndef __TIMER_H__
#define __TIMER_H__

#include "all.h"


#define IS_INTERRUPT 


void Timer1_Init(void);
#ifndef IS_INTERRUPT
bool ircon_state(void);

#else

unsigned int get_timer_tick(void);
void clear_timer_tick(void);

#endif


#endif




//例子=============================
void main(void)
{     
  #ifndef IS_INTERRUPT
  unsigned char i =0;
  #endif
  InitGPIO();                   //设置LED灯相应的GPIO口
  Timer1_Init();

  while(1)                     //死循环
  {
    #ifndef IS_INTERRUPT
    if (ircon_state())
    {
      i++;
      if (i>32)
      {
        i=0;
        LED1 = ~LED1; 
      }
    }
  #else
   if (get_timer_tick() > 32)
   {
      clear_timer_tick();
       LED1 = ~LED1; 
   }
  #endif
  }    
}