vectors08.c

基于HC908GP32的时钟程序

/*-----------------------------------------------------*
*文件名:vectors08.c                                    *
*功  能:用于定义中断矢量表                             *
*-----------------------------------------------------*/
#include "GP32C.H"
#include "KB.h" 

/*[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
//外部变量
extern unsigned char time[14];      //H M S
extern unsigned char Key;
/*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                *
*-----------------------------------------------------*/

#pragma interrupt_handler isrTIMER1
void isrTIMER1(void)
{
   unsigned char i;
   asm("SEI");            //关总中断
   //------------------------------
   time[13]++;             //秒数加1
   if (time[13]!=10) goto isrTIMER1_exit; //秒数未增加到60,转
   time[13]=0; time[12]++;  //秒数增加到60,清0,分钟数加1
   if (time[12]!=6) goto isrTIMER1_exit; //分钟数未增到60,转
   time[12]=0; time[11]++;  //分钟数增加到60,清0,小时数加1
   if (time[11]!=10) goto isrTIMER1_exit; //小时数未增到24,转
   time[11]=0; time[10]++;            //时数增加到24,清0
   if(time[10]!=6) goto isrTIMER1_exit;
   time[10]=0;time[9]++;
   if(time[9]!=10) goto isrTIMER1_exit;
   time[9]=0;time[8]++;
   if(time[8]!=3) goto isrTIMER1_exit;
   time[8]=0;time[7]++;
   if(time[7]!=10) goto isrTIMER1_exit;
   time[7]=0;time[6]++;
   if(time[6]!=3) goto isrTIMER1_exit;
   time[6]=0;time[5]++;
   if(time[5]!=10) goto isrTIMER1_exit;
   time[5]=0;time[4]++;
   if(time[4]!=2) goto isrTIMER1_exit;
   time[4]=0;time[3]++;
   if(time[3]!=10) goto isrTIMER1_exit;
   time[3]=0;time[2]++;
   if(time[2]!=10) goto isrTIMER1_exit;
   time[2]=0;time[1]++;
   if(time[1]!=10) goto isrTIMER1_exit;
   time[1]=0;time[0]++;
   if(time[0]!=10) goto isrTIMER1_exit;
   time[0]=0;
   isrTIMER1_exit:	 
   //------------------------------
   //清除定时器溢出标志位
   T1SC&=~(1<<TOFBit);
   asm("CLI");            //开总中断
}
/*键盘中断处理函数------------------------------------*/
#pragma interrupt_handler isrKBI
void isrKBI(void) 
{
	 unsigned char KB_valve;
	 asm("SEI");	  	        //关总中断
	 INTKBSCR|= (1<<IntBit); //屏蔽键盘中断(IMASKK=1)
	 KB_valve=KB_Scan();     //扫描键值
	 Key=KB_Def(KB_valve);           //获得键定义值
	 KB_Init();			     //重新初始化键盘
	 INTKBSCR&= ~(1<<IntBit); //打开键盘中断(IMASKK=0)
	 asm("CLI");			     //开总中断
}

//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      
	isrKBI, 	//键盘中断    
	isrDummy,	//SCI TC/TE 
	isrDummy,     //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