2022蓝桥杯国赛 单片机蓝桥杯近年来比赛代码.zip

#include <STC15F2K60S2.H> #include <intrins.h> #include <ds1302.h> #include <onewire.h> #define uchar unsigned char #define uint unsigned int void Write_Ds1302_Byte(unsigned char temp); void Write_Ds1302( unsigned char address,unsigned char dat ); unsigned char Read_Ds1302 ( unsigned char address ); void readtime(); void ds1302inits(); void Delay_OneWire(unsigned int t); void Write_DS18B20(unsigned char dat); unsigned char Read_DS18B20(void); bit init_ds18b20(void); uchar temperature(); void Delay100ms(uchar a); //@11.0592MHz void allinits(); void display1(); void display2(); void display3(); void display4(); void delay(uchar a); uchar code tab[]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90,0XBF,0XFF}; uchar one,two,three,four,five,six,seven,eight; extern uchar time[7]; uchar code mode[]={1,5,30,60}; uchar temp[10]; int key; int count4,count6; int actime; int count; int tt,times,timeh,timem,wendu_time; int t; bit flag_5; uchar wendu; bit init;//S4 bit display;//S6 bit collect;//S5 bit flag_6; void keyscan(); void start(); void Timer0Init(void); void Timer1Init(void); void temp_display(); void readtemp(); void start_act(); void skip_display(); void constant_display(); void main() { allinits(); Timer0Init(); while(1) { wendu=temperature(); keyscan(); if((key==0||key==4||key==6||key==7)&&display==0&&collect==0)start(); if(key==5&&display==0){start_act();} if((key==6||key==7||key==4)&&collect==1){count4=count6=0;start_act();key=5;}//key作为返回值时 不能强行赋值 会被键盘刷新掉 if(count==10){collect=0;display=1;} if(display==1) { if(key==6){constant_display();} else if(key!=6) { if(flag_6==0)skip_display(); else if(flag_6==1)constant_display(); } } if(count6==9&&key==7){count4=0;count6=0;count=0;display=0;flag_6=0;} display1(); display2(); display3(); display4(); } } void constant_display() { P2=0X80;P0=0XFF;temp_display(); flag_6=1; } void skip_display() { readtime();//需要不断读取时间 EA=0;ET0=0;TR0=0; if(time[0]%2==0){P2=0X80;P0=0XFE;} else if(time[0]%2!=0){P2=0X80;P0=0XFF;} temp_display(); } void start() { init=1; one=two=three=four=five=11;six=10; seven=mode[count4]/10;eight=mode[count4]%10; if(count4==4)count4=0; } void temp_display() { one=six=10;two=0;four=five=11; three=count6;seven=temp[count6]%100/10;eight=temp[count6]%10; } void start_act() { init=0;collect=1; actime=mode[count4]; EA=1;ET0=1;TR0 = 1; if(flag_5==1) { ds1302inits();//不能不断赋初值 top important! flag_5=0; } readtime(); if(time[0]%2==0) {one=time[2]/10;two=time[2]%10;three=10;four=time[1]/10;five=time[1]%10;six=10;seven=time[0]/10;eight=time[0]%10;} else if(time[0]%2!=0) {one=time[2]/10;two=time[2]%10;three=11;four=time[1]/10;five=time[1]%10;six=11;seven=time[0]/10;eight=time[0]%10;} } void keyscan() { uchar temp; P3=0XFF; if(P3!=0XFF) { delay(5); if(P3!=0XFF) { temp=P3; switch(P3) { case 0xfe:key=7;break; case 0xfd:key=6;count6++;break; case 0xfb:key=5;flag_5=1;break; case 0xf7:key=4;count4++;break; } while(temp!=0xff){temp=P3;temp=temp&0xff;display1();display2();display3(); display4();} } } } void timer0() interrupt 1 { tt++; if(tt==200) { tt=0; wendu_time++; } if(wendu_time==actime) { wendu_time=0; if(count<10){temp[count]=wendu;count++;} } } void Timer0Init(void) //5毫秒@11.0592MHz { AUXR |= 0x80; //定时器时钟1T模式 TMOD &= 0xF0; //设置定时器模式 TL0 = 0x00; //设置定时初值 TH0 = 0x28; //设置定时初值 TF0 = 0; //清除TF0标志 TR0 = 0; //定时器0开始计时 } void delay(uchar a) //@11.0592MHz { do{ unsigned char i, j; _nop_(); _nop_(); _nop_(); i = 11; j = 190; do { while (--j); } while (--i); }while(--a); } void allinits() { P2=0XA0;P0=0X00; P2=0X80;P0=0XFF; P2=0XC0;P0=0XFF; P2=0XE0;P0=0XFF; } void display1() { P2=0XC0;P0=0X01; P2=0XE0;P0=tab[one]; delay(2); P2=0XC0;P0=0X02; P2=0XE0;P0=tab[two]; delay(2); } void display2() { P2=0XC0;P0=0X10; P2=0XE0;P0=tab[five]; delay(2); P2=0XC0;P0=0X08; P2=0XE0;P0=tab[four]; delay(2); } void display3() { P2=0XC0;P0=0X04; P2=0XE0;P0=tab[three]; delay(1); P2=0XC0;P0=0X20; P2=0XE0;P0=tab[six]; delay(1); } void display4() { P2=0XC0;P0=0X40; P2=0XE0;P0=tab[seven]; delay(2); P2=0XC0;P0=0X80; P2=0XE0;P0=tab[eight]; delay(2); P2=0XC0;P0=0xff; P2=0XE0;P0=0xff; }