蓝桥杯单片机第十二届国赛代码

#include "stc15.h" //定义51单片机特殊功能寄存器 #include "intrins.h" #include <iic.h> #include <ds1302.h> bit s_flag; bit k; bit x; bit s_flag; unsigned char modes9=0; unsigned char modee=0; unsigned char tim; unsigned char modes5=0; unsigned char modes4=0; unsigned char modes8=0; unsigned char t=2; unsigned int ds=20; unsigned char SMG[10]={0xc0, 0xf9,0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90 }; unsigned char SMG_DOt[10]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10}; unsigned int distance; unsigned char timer[3]={0x01,0x20,0x20}; unsigned char write_ds1302[3]={0x80,0x82,0x84}; unsigned char read_ds1302[3]={0x81,0x83,0x85}; int a[50]; int e=0; sbit RX=P1^1; sbit TX=P1^0; sbit L1 = P0^0; sbit L2 = P0^1; sbit L3 = P0^2; sbit L4 = P0^3; sbit L5 = P0^4; sbit L6 = P0^5; unsigned char max; unsigned char min; unsigned char averge; void show2(); unsigned char num; unsigned int time_a[10]={0}; unsigned int rb2; sbit C1=P3^0; sbit C2=P3^1; sbit C3=P3^2; sbit C4=P3^3; sbit R1=P3^4; sbit R2=P3^5; sbit R3=P4^2; sbit R4=P4^4; void display(); void find_min(); void find_max(); void find_avg(); void hc573(unsigned char n) { switch(n) { case 4:P2=(P2&0x1f)|0x80;break; case 5:P2=(P2&0x1f)|0xa0;break; case 6:P2=(P2&0x1f)|0xc0;break; case 7:P2=(P2&0x1f)|0xe0;break; case 0:P2=(P2&0x1f)|0x00;break; } } void Delay13us() //@12.000MHz { unsigned char i; _nop_(); _nop_(); i = 36; while (--i); } void Save() {unsigned char i; for(i=0;i<8;i++) { TX=1; Delay13us(); TX=0; Delay13us(); } } void w_1302() { unsigned char i; Write_Ds1302_Byte(0x8e,0x00); for(i=0;i<3;i++) { Write_Ds1302_Byte(write_ds1302[i] ,timer[i] ); } Write_Ds1302_Byte(0x8e,0x80); } void r_1302() { unsigned char i; for(i=0;i<3;i++) { timer[i]= Read_Ds1302_Byte ( read_ds1302[i] ); } } void Write_PCF8591(unsigned char dat) { IIC_Start(); IIC_SendByte(0x90); IIC_WaitAck(); IIC_SendByte(0x40); IIC_WaitAck(); IIC_SendByte(dat); IIC_WaitAck(); IIC_Stop(); } void Read_rb2() { IIC_Start(); IIC_SendByte(0x90); IIC_WaitAck(); IIC_SendByte(0x41); IIC_WaitAck(); IIC_Stop(); IIC_Start(); IIC_SendByte(0x91); IIC_WaitAck(); rb2 = IIC_RecByte(); IIC_SendAck(1); IIC_Stop(); } void wz(unsigned char pos,unsigned char value) { hc573(7); P0=0xff; hc573(6); P0=0x01<<pos; hc573(7); P0=value; hc573(0); } void delay(unsigned int t) { while(t--); } void close() {hc573(7); P0=0xff; hc573(6); P0=0xff; } void show1() { wz(0,SMG[ timer[2]/16]); delay(500); wz(1,SMG[ timer[2]%16]); delay(500); wz(2,0xbf); delay(500); wz(3,SMG[ timer[1]/16]); delay(500); wz(4,SMG[ timer[1]%16]); delay(500); wz(5,0xbf); delay(500); wz(6,SMG[ timer[0]/16]); delay(500); wz(7,SMG[ timer[0]%16]); delay(500); close(); } void show2() { wz(0,0xc7); delay(500); wz(1,0xC6); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,0xff); delay(500); if(distance>100) {wz(5,SMG[distance/100]); delay(500);} if(distance>10) {wz(6,SMG[(distance/10)%10]); delay(500);} wz(7,SMG[distance%10]); delay(500); close(); } void isr_timer_0(void) interrupt 1 //默认中断优先级 1 { static unsigned int intr = 0; TH0 = (65536-2000)/256; TL0 = (65536-2000)%256; //定时器重载 if(++intr == 200) { s_flag = 1; intr = 0; } } void show3() { wz(0,0xc7); delay(500); wz(1,0x8e); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,0xff); delay(500); if(distance>100) {wz(5,SMG[distance/10]); delay(500);} if(distance>10) {wz(6,SMG[(distance/10)%10]); delay(500);} wz(7,SMG[distance%10]); delay(500); close(); } void show4() {find_max(); wz(0,0x89); delay(500); wz(1,0xfe); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); if(max>1000) { wz(4,SMG[max/1000]); delay(500); } if(max>100) { wz(5,SMG[(max/100)%10]); delay(500); } if(max>10) { wz(6,SMG[max/10]); delay(500); } wz(7,SMG[max%10]); delay(500); close(); } void show5() { find_avg(); wz(0,0x89); delay(500); wz(1,0xbf); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); if(averge>1000) { wz(4,SMG[averge/100]); delay(500); } if(averge>100) { wz(5,SMG[(averge/100)%10]); delay(500); } wz(6 ,SMG_DOt[(averge/10)%10]); delay(500); wz(7,SMG[averge%10]); delay(500); close(); } void show6() {find_min(); wz(0,0x89); delay(500); wz(1,0xf7); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); if(min>1000) //{ wz(4,SMG[min/1000]); delay(500);//} //if(min>100) //{ wz(5,SMG[(min/100)%10]); delay(500); //} //if(min>10) //{ wz(6,SMG[(min/10)]); delay(500);//} wz(7,SMG[min%10]); delay(500); close(); } void show7() { wz(0,0x8c); delay(500); wz(1,0xf9); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,0xff); delay(500); wz(5,0xff); delay(500); wz(6,SMG[ t/10]); delay(500); wz(7,SMG[ t%10]); delay(500); close(); } void show8() { wz(0,0x8c); delay(500); wz(1,0xa4); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,0xff); delay(500); wz(5,0xff); delay(500); wz(6,SMG[ ds/10]); delay(500); wz(7,SMG[ ds%10]); delay(500); close(); } void display() { if(modes4==0) {if(modes5==0) { show1(); } else if(modes5==1) { if(x==0) {show2();modee=0;} else if(x==1) {show3();modee=1;} } else if(modes5==2) { if(modes8==0) show4(); else if(modes8==1) show6(); else if(modes8==2) show5(); } } else if(modes4==1) { if(k==0) show7(); else if(k==1) show8(); } } void key() {C4=0; C1=C2=C3=1; R1=R2=R3=R4=1; if(R4==0) { delay(100); if(R4==0) {while(R4==0) {display();} if(modes4==0) modes4=1; else if(modes4==1) {modes4=0;} } } C3=0; C1=C2=C4=1; R1=R2=R3=R4=1; if(R4==0) { delay(100); if(R4==0) {while(R4==0) {display();} if(modes5==0) modes5=1; else if(modes5==1) {modes5=2;} else if(modes5==2) modes5=0; k=~k; } } C4=0; C1=C2=C3=1; R1=R2=R3=R4=1; if(R3==0) { delay(100); if(R3==0) {while(R3==0) {display();} if(modes8==0) modes8=1; else if(modes8==1) modes8=2; else if(modes8==2) modes8=0; if(modes5==1) x=~x; } } C3=0; C1=C2=C4=1; R1=R2=R3=R4=1; if(R3==0) { delay(100); if(R3==0) {while(R3==0) {display();} if(modes4==1) {if(k==0) {if(modes9==0) {t=2,modes9=1;} else if(modes9==1) {t=3,modes9=2;} else if(modes9==2) {t=5,modes9=3;} else if(modes9==3) {t=7,modes9=4;} else if(modes9==4) {t=9,modes9=0;} } else if(k==1) {if(modes9==0) {ds=10,modes9=1;} else if(modes9==1) {ds=20,modes9=2;} else if(modes9==2) {ds=30,modes9=3;} else if(modes9==3) {ds=40,modes9=4;} else if(modes9==4) {ds=50,modes9=5;} else if(modes9==5) {ds=60,modes9=6;} else if(modes9==6) {ds=70,modes9=7;} else if(modes9==7) {ds=80,modes9=0;} } } } } } void da() { if(distance<=10) Write_PCF8591(51); else if(distance<=80) Write_PCF8591((4/70.0*distance+3/7.0)/5.0*255); else Write_PCF8591(255); } void csb() {unsigned int time = 0; if(s_flag) { s_flag = 0; Save(); TR1 = 1; while((RX == 1) && (TF1 == 0)); TR1 = 0; if(TF1 == 1) { TF1 = 0; distance = 999; } else { time = TH1; time <<= 8; time |= TL1; distance = (unsigned int)(time*0.017); a[e]=distance; e++; } TH1 = 0; T