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12.2 數(shù)顯表頭軟件設計思路 12.4 程序清單 #include <pic16F87x.h> #include "mydefine.h" #include <pic.h> static int flag,flag0,flag1,flag3,led_d; static int data1[5],data2[5]; static int data,data0,data_1,data_2,sdata; //=====================子程序========================= //端口初始化子程序 void initport( ) { PORTA=0; PORTB=0; PORTC=0; PORTD=0; ADCON1=0x07; TRISA=0x03; //設RA0,RA1為輸入 TRISB=0xE8; //設RB0,RB1,RB2,RB4為輸出 TRISC=0xFF; //設C口為輸入 TRISD=0; //設D口為輸出 } //判斷地址是否相同子程序 int adr_jud(int x) { int adress,y; adress=PORTA&0x03; x&=0x60; adress=adress<<5; if (adress==x) y=1; else y=0; CLRWDT(); return(y); } //顯示初始化子程序 void initdis( ) { PORTB=0xFE; //選通數(shù)碼管1 PORTD=0xC0; PORTB=0xFD; //選通數(shù)碼管2 PORTD=0xC0; PORTB=0xFB; //選通數(shù)碼管3 PORTD&=0x7F; //選通小數(shù)位 PORTD=0xC0; PORTB=0xEF; //選通數(shù)碼管4 PORTD=0xC0; } //讀5次數(shù)據(jù)判是否有4次相等 int judge(arry) int arry[5]; { int i,j,k; for(i=0;i<=4;i++){ k=0; for(j=0;j<=4;j++) { if(arry[i]==arry[j]) k++; if(k>=4) { flag1=1; data0=arry[i]; return(flag1); } else flag1=0; } } return(flag1); } //數(shù)據(jù)轉(zhuǎn)換子程序 int convert(int d1,int d2) { auto int dd1,dd2; int i1,j1,k1,i2,j2,m; dd1=d1; dd2=d2; j1=0x10; k1=2048; d1=0; for(i1=1;i1<=5;i1++) { if(j1==(dd1&j1)) m=1; else m=0; d1=d1+m*k1; j1=j1/2; k1=k1/2; } j2=0x40; d2=0; for(i2=1;i2<=7;i2++) { if(j2==(dd2&j2)) m=1; else m=0; d2=d2+m*k1; j2=j2/2; k1=k1/2; } data=d1+d2; return(data); } //顯示子程序 int display(int x) { int l1,l2,l3,l4; l1=x/1000; PORTB=0xFE; //選通數(shù)碼管1 PORTD=led[l1]; l2=(x-l1*1000)/100; PORTB=0xFD; //選通數(shù)碼管2 PORTD=led[l2]; l3=(x-l1*1000-l2*100)/10; PORTB=0xFB; //選通數(shù)碼管3 PORTD=0x7F; PORTD=led[l3]; l4=x-l1*1000-l2*100-l3*10; PORTB=0xEF; //選通數(shù)碼管4 PORTD=led[l4]; } //中斷服務子程序 void interrupt int_serve( ) { PIR1=0; TMR1L=0xE5; TMR1H=0xBE; di( ); sdata=PORTC&0x80; ei( ); } //開中斷子程序 void int_open( ) { inportc=PORTC&0x80; if(inportc==1) return; else data1[0]=~PORTC; flag=adr_jud(data1[0]); if(flag==0) return; //地址不同返回 else data1[1]=~PORTC; data1[2]=~PORTC; if(data1[0]==data1[1]) if(data1[0]==data1[2]) { flag3=1; PIR1=0; //開通總中斷前，清所有中斷標志位 TMR1IE=1; //TMR1溢出中斷使能 PEIE=1; ei( ); TMR1L=0xE5; TMR1H=0xBE; //20ms中斷1次 T1CON=0x01; //設TMR1為1分頻,計數(shù)器方式工作 } else return; } //讀第1幀子程序 voidread_1( ) { int j0; for(j0=1;j0<=4;j0++) data1[j0]=~PORTC; flag1=judge(data1); if (flag1==1) { data_1=data0; flag0=1; count1++; } flag=adr_jud(data1[0]); if(flag==1) { for(j0=1;j0<=4;j0++) data1[j0]=~PORTC; flag1=judge(data1); if (flag1==1){ data_1=data0; flag0=1; count1++; } } } // 主程序 main( ) { int i0,ii,i; flag0=0; //幀標志位 flag1=0; //讀5次數(shù)據(jù)判有4次相等標志位 flag3=1; //開中斷標志位 count1=0; //讀第1幀計數(shù)單元 count2=0; //讀第2幀計數(shù)單元 data_1=0; data_2=0; led_d=0; led[0]=0xc0; //0 led[1]=0xf9; led[2]=0xa4; led[3]=0xb0; led[4]=0x99; led[5]=0x92; led[6]=0x82; led[7]=0xf8; led[8]=0x80; led[9]=0x90; //9 initport( ); OPTION=0xFE; //開看門狗 initdis( ); while(1) { if(flag3==0) int_open(); else{ if(sdata==0x80){ //第二幀數(shù)據(jù)到 if(flag0==1){ for(i0=0;i0<=4;i0++) data2[i0]=~PORTC; flag1=judge(data2); if (flag1==1) { data_2=data0; flag0=0; count2++; } } } else if(sdata==0) { //第一幀數(shù)據(jù)到 if(flag0==0) { data1[0]=~PORTC; flag=adr_jud(data1[0]); if(flag==1) { for(j0=1;j0<=4;j0++) data1[j0]=~PORTC; flag1=judge(data1); if (flag1==1) { data_1=data0; flag0=1; count1++; } } } } CLRWDT(); if(count1==count2) led_d=convert(data_1,data_2 ); } display(led_d); } } |
66821730(技術支持)
