单片机C语言程序.doc

1 流水 #include reg51.H sbit P1_0=P1^0; sbit P1_1=P1^1; sbit P1_2=P1^2; sbit P1_3=P1^3; sbit P1_7=P1^7; unsigned char ID; void delayms(unsigned char i) { unsigned char j; for(i;i0;i--) for(j=1000;j0;j--); } void main(void) { while(1) { if(P1_7==0) {delayms(100); if(P1_7==0) { ID++; if(ID==4) { ID=0; } while(P1_7==0); } } switch(ID) { case 0: P1_0=~P1_0; P1_1=1;P1_2=1;P1_3=1; delayms(100); break; case 1: P1_1=~P1_1; P1_0=1;P1_2=1;P1_3=1; delayms(100); break; case 2: P1_2=~P1_2; P1_0=1;P1_1=1;P1_3=1; delayms(100); break; case 3: P1_3=~P1_3; P1_0=1;P1_1=1;P1_2=1; delayms(100); break; } } } 2抢答器 #include reg51.h #include absacc.h #define cs273 XBYTE[0xCFA0] sbit RST = P1^7; sbit K1 = P1^0; sbit K2 = P1^1; sbit K3 = P1^2; sbit P1_3=P1^3; unsigned char code table[4]={0x06,0x5b,0x4f,0x00}; void delay(unsigned k) { unsigned int i,j; for(i=0;ik;i++) for(j=0;j62;j++); } main() { while(1) { start: P1_3=0; if(K1==0) { delay(30); if(K1==0) {cs273=table[0];while(1)if(RST==0){cs273=table[3];goto start;}} } else if(K2==0) { delay(30); if(K2==0) {cs273=table[1];while(1)if(RST==0){cs273=table[3];goto start;}} } else if(K3==0) { delay(30); if(K3==0) {cs273=table[2];while(1)if(RST==0){cs273=table[3];goto start;}} } } } 3五人表决器 #include reg51.h sbit RST = P1^7; sbit K1 = P1^0; sbit K2 = P1^1; sbit K3 = P1^2; sbit K4 =P1^3; sbit K5=P1^4; sbit P1_6=P1^6; unsigned char count,a,b,c,d,e; void delay(unsigned k) { unsigned int i,j; for(i=0;ik;i++) for(j=0;j62;j++); } main() { while(1) { if(K1==0)