vectors08.c

利用定时器溢出中断修改时间,并发送新时间

/*-----------------------------------------------------*
*文件名:vectors08.c                                    *
*功  能:用于定义中断矢量表                             *
*-----------------------------------------------------*/
#include "GP32C.H"
#include "SCI.h"            //串行通信头文件
/*[相应寄存器定义]*/
#define TSTOPBit   5        //定时器计数停止位
#define TOFBit     7        //定时器溢出标志位
/*isrTIMER1:定时器溢出中断处理函数---------------------*
*功  能:给内存单元Time[0-2](时分秒)赋值                *
*-----------------------------------------------------*/
extern unsigned char time[3];      //H M S
#pragma interrupt_handler isrTIMER1
void isrTIMER1(void)
{
   unsigned char i;
   asm("SEI");            //关总中断
   //------------------------------
   time[2]++;             //秒数加1
   if (time[2]!=60) goto isrTIMER1_exit; //秒数未增加到60,转
   time[2]=0; time[1]++;  //秒数增加到60,清0,分钟数加1
   if (time[1]!=60) goto isrTIMER1_exit; //分钟数未增到60,转
   time[1]=0; time[0]++;  //分钟数增加到60,清0,小时数加1
   if (time[0]!=24) goto isrTIMER1_exit; //小时数未增到24,转
   time[0]=0;             //时数增加到24,清0
   isrTIMER1_exit:	 
   //------------------------------
   //清除定时器溢出标志位
   T1SC&=~(1<<TOFBit);
   asm("CLI");            //开总中断
}
/*isrRe:接收中断处理函数-------------------------------*
*功  能:接收3字节基准时分秒放入内存单元Time[0-2]       *
*-----------------------------------------------------*/
#pragma interrupt_handler isrRe  
void isrRe(void) 
  {
   	asm("SEI");	       //禁止所有中断
        //接收数据
        SCIReN(3,time);
	  asm("CLI");        //开放总中断	
  }
//未定义的中断处理函数,本函数不能删除
#pragma interrupt_handler isrDummy  
void isrDummy(void) 
{
}
#pragma abs_address:0xffdc    //中断向量表起始地址
void (* const _vectab[])(void) = {            
	isrDummy,   //时基中断 
	isrDummy,	//AD转换中断      
	isrDummy, 	//键盘中断    
	isrDummy,	//SCI TC/TE 
	isrRe,      //SCI RF/IDLE 
	isrDummy,	//SCI PE/FE/NF/OR
	isrDummy,	//SPI TE  
	isrDummy,	//SPI MOD/OVR/RF
	isrDummy,	//TIM2溢出中断 
	isrDummy,	//TIM2通道1
	isrDummy,	//TIM2通道0
	isrTIMER1,	//TIM1溢出中断      
	isrDummy,	//TIM1通道1
	isrDummy,	//TIM1通道0
	isrDummy,	//CGM     
	isrDummy,	//IRQ     
	isrDummy	//SWI       
    //RESET也是中断，定义在 crt08.o中 
   };
#pragma end_abs_address