第十二届蓝桥杯单片机C语言.zip

#include<reg52.h> #include<onewire.h> #include<iic.h> unsigned mods5=0; unsigned mods4=0; unsigned int dat_v; unsigned int temp=0; unsigned char temp_p=25; unsigned char duanma[18] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x80,0xc6,0xc0,0x86,0x8e,0xbf,0x7f}; unsigned char code duanma_dot[10]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10}; sfr P4=0xc0; sbit R1 = P3^0; sbit R2 = P3^1; sbit R3 = P3^2; sbit R4 = P3^3; sbit C1 = P4^4; sbit C2 = P4^2; sbit C3 = P3^5; sbit C4 = P3^4; sbit L1=P0^0; sbit L2=P0^1; sbit L3=P0^2; sbit L4=P0^3; void display(); 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 wz(unsigned char pos,unsigned char value) { hc573(7); P0=0xff; hc573(6); P0=0x01<<pos; hc573(7); P0=value; } void delay_20(unsigned int a) {while(a--) {display();} } void Read_Temp () { unsigned char LSB; unsigned char MSB; init_ds18b20(); Write_DS18B20(0xcc); Write_DS18B20(0x44); init_ds18b20(); Write_DS18B20(0xcc); Write_DS18B20(0xbe); LSB = Read_DS18B20(); MSB = Read_DS18B20(); temp = (MSB << 8) | LSB; if ((temp & 0xf800) == 0x0000) { temp = temp >> 4; temp=temp*100; temp=temp+(LSB&0x0f)*6.25; } } void SetDat_DAC (unsigned int dat) { IIC_Start(); IIC_SendByte(0x90); IIC_WaitAck(); IIC_SendByte(0x40); IIC_WaitAck(); IIC_SendByte(dat); IIC_WaitAck(); IIC_Stop(); }void CloseALL() { hc573(6); P0 = 0xff; hc573(7); P0 = 0xff; } void delay(unsigned int t) {while(t--);} void show1() {wz(0,0xc6); delay(500); wz(1,0xff); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,duanma[temp/1000] ); delay(500); wz(5,duanma_dot[(temp/100)%10] ); delay(500); wz(6,duanma[(temp/10)%10]); delay(500); wz(7,duanma[temp%10]); delay(500);CloseALL(); } void show2() {wz(0,0x8c); delay(500); wz(1,0xff); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,0xff ); delay(500); wz(5,0xff ); delay(500); wz(6,duanma[temp_p/10]); delay(500); wz(7,duanma[temp_p%10]); delay(500);CloseALL(); } void show3() {wz(0,0x88); delay(500); wz(1,0xff); delay(500); wz(2,0xff); delay(500); wz(3,0xff); delay(500); wz(4,0xff ); delay(500); wz(5,duanma_dot[dat_v/100]); delay(500); wz(6,duanma[(dat_v/10)%10]); delay(500); wz(7,duanma[dat_v%10]); delay(500);CloseALL(); } void display() {if(mods4==0) show1(); if(mods4==1) show2(); if(mods4==2) show3(); } void key() {R4=0; R1=R2=R3=1; C1=C2=C3=C4=1; if(C1==0) {delay(100); if(C1==0) {while(C1==0) {display();} if(mods4==0) mods4=1; else if(mods4==1) mods4=2; else if(mods4==2) mods4=0; } } if(C2==0) {delay(100); if(C2==0) {while(C2==0) {display();} if(mods4==1) {temp_p--;} } } R3=0; R1=R2=R4=1; C1=C2=C3=C4=1; if(C2==0) {delay(100); if(C2==0) {while(C2==0) {display();} if(mods4==1) {temp_p++;} } } if(C1==0) {delay(100); if(C1==0) {while(C1==0) {display();} if(mods5==0) {mods5=1; if(temp<(temp_p*100)) { SetDat_DAC (0x00); dat_v=0; } else { SetDat_DAC (0xff); dat_v=500;} } else if(mods5==1) {mods5=0; if(temp<2000) {dat_v=100; SetDat_DAC (0x51); } else if(2000<temp<4000) {dat_v=(temp*0.15)-200; SetDat_DAC (dat_v*0.15); } else if(temp>4000) {dat_v=400; SetDat_DAC (204); } } } } } void ledrunning() { if(mods4==0) { hc573(4);P0=0xfd;} else if(mods4==1) {hc573(4); P0=0xfb;} else if(mods4==2) {hc573(4); P0=0xf7;} if(mods5==1) {if(mods4==0) {hc573(4); P0=0xfc; }} if(mods5==1) {if(mods4==1) {hc573(4); P0=0xfa; }} if(mods5==1) {if(mods4==2) {hc573(4); P0=0xf6; }} } void off() {hc573(4); P0=0xff; hc573(5); P0=0x00; hc573(0); } void main() {off(); if(mods5==0) {mods5=1;if(temp<(temp_p*100)) { SetDat_DAC (0x00); dat_v=0; } else { SetDat_DAC (0xff); dat_v=500;}} while(1) {Read_Temp ();display();key();ledrunning();} }