PIC单片机及FPGA实验系统设计 第23页

PIC单片机及FPGA实验系统设计 第23页
 case 0x71:k=0;break;
    case 0x72:k=13;break;
    case 0x74:k=14;break;
    case 0x78:k=15;break;
   }
  }
 }
} 
void key_chuli(void){
 if((key>0)&&(key<10}){
  if(keycount<6){
   getps[keycount]=key;
   dispbuf[keycount+2]=19;
   }
 }
 if(keycount>=6){
  keycount=6;
  keyoverflag=1;
 }
 if(key==12){  //删除键
  if(keycount>0){
   keycount--; 
   getps[keycount]=0;
   dispbuf[keycount+2]=16;
  }
  else{
   keyoverflag=1;
  }
 }
 if(key==15){  //确认键
  if(keycount!=pslen){  //首先判断位数是否相同
   errorflag=1;
   rightflag=0;
   second3=0;
  }
  else {
   for(i=0;i<keycont+1;i++){
    if(getps[i]!=ps[i]){
     i=keycount+1;
     errorflag=1;
     rightflag=0;
     second3=0;
     goto a4;
     }
    }
     errorflag=0;
     rightflag=1;
    a4: i=keycount+1;
   }
  }
 }
} 
void display(void){
 TRISD=0x00;
 TRISC=0x00;
 flashcount++;
 if(flashcount==8){
  flashcount=0;
 }
 PORTC=dispbit[discount];
 PORTD=dispcode[buffer[discount];
 dispcount++;
 if(dispcount==8){
  dispcount=0;
 }
 delay(8);
 PORTC=PORTC|0xff;
 delay(8);
}
void interrupt T0(void){
 if(T0IF==1){
  T0IE=0;
  display();
  error_right();
  keyover();
  T0IF=0;
  T0IE=1;
 }
}
void error_right(void){
 if(errorflag==1&&rightflag==0){
  alarm();
 }
 if(errorflag==0&&rightflag==1){
  TRISE=0x00;
  PORTE0=1;
 }
} 
void keyover(void){
 if (keyoverflag==1){
  alarm();
 }
}
void alarm(void){
 TRISE=0x00;
 PORTE1=~PORTE1;
}
附录(十四)：包装机程序:文件baozhuangji.C
#include"pic.h"
//***********************************
//2006年2月22日调试通过
//***************************************
bank1 unsigned int Led_Duan[11]={
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00
                  };                                             //数码管段码不带小数点显示
bank1 unsigned int Led_Wei[5]={0x01,0x02,0x04,0x08,0x10
    };                                               //位码
bank1 unsigned int duan[5]={10,10,10,10,10
                };                                              //显示占存
unsigned int  Key_Shezhi;                                        //设置数值
unsigned char Key_Edit_shezhi;                                  //设置标志
unsigned int Led_Duan_jishuqi;                                //LED显示位标志
//unsigned int Ad_Adresult=0;                                //A/D转换计算结果
unsigned int Ad_Sample_Result=0;                           //A/D转换采样结果
unsigned int Ad_shezhi=0;                                        //AD数值
unsigned int Ad_Delay_Count=0;                    // 间隔一定时间启动A/D转换  
unsigned int Led_Duan_ag=0; 
unsigned int Key_Write;                                          //写允许标志 
unsigned int Led_Key_jishuqi;                                    //闪烁位标志                                            
/************************************
* *函数声明
***************************************/
void initial(void);
void AD_Initial(void);
void AD_Zhuanhuan(void);
void Key_Initial(void);
void Key_Main(void);
void Key_Ok(void);
void Key_Edit(void);

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