蓝桥杯单片机

#include <STC15F2K60S2.H> #include <ds1302.h> #include <onewire.h> #include <iic.h> #include <intrins.h> sbit TX=P1^0; sbit RX=P1^1; #define Contr_Peri(X,Y) P0=Y;P2=X;P2=0 typedef unsigned char uchar; typedef unsigned int uint; uchar dsp_code[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff}; uchar dsp_buff[8]={10,10,10,10,10,10,10,10}; uchar read_number[7]; uchar read_i; uint temp; uint count_temp; uint volt; uchar count_adc; char hor1,min1,sec1; char hor,min,sec; uint distance; uint count_dis; uchar key_stat; uchar count_key; uchar key_back; uchar count_press; bit flag; bit busy; void Delay13us() //@12.000MHz { unsigned char i; _nop_(); _nop_(); i = 36; while (--i); } void Delay10ms() //@12.000MHz { unsigned char i, j; i = 117; j = 184; do { while (--j); } while (--i); } void Send_Wave() { uchar i=0; for(i=0;i<16;i++) { TX=~TX; Delay13us(); } } uint Get_Distance() { uint dis; TH1=TL1=0; Send_Wave(); TR1=1; while((RX==1)||(TF1==1)); TR1=0; if(TH1!=0) { dis=(TH1<<8|TL1)*0.017+0.5; } else { dis=999; TF1=0; } return dis; } void Scan_Key() { uchar key_val=0,key_x=0,key_y=0; P3=0X0F;P4=0; if(!P30) key_x=3; else if(!P31)key_x=2; else if(!P32)key_x=1; else if(!P33)key_x=0; P3=0xf0;P4=0XFF; if(!P34) key_y=4; else if(!P35)key_y=3; else if(!P42)key_y=2; else if(!P44)key_y=1; key_val=key_x+key_y*4; switch(key_stat) { case 0: if(key_val!=0) key_stat=1; break; case 1: if(key_val==0) key_stat=0; else { key_stat=2; // switch(key_val) // { // // } } break; case 2: if(key_val==0) key_stat=3; else { key_stat=0; key_back=key_val; if(++count_press>100) { flag=1; // switch(key_val) // { // // } } } break; case 3: if(key_val==0) { if(!flag) { // switch(key_val) // { // // } } flag=0; key_stat=0; count_press=0; key_back=0; } break; default: flag=0; key_stat=0; count_press=0; key_back=0; break; } } void Timer0_Init(void) //1毫秒@12.000MHz { AUXR |= 0x80; //定时器时钟1T模式 TMOD &= 0xF0; //设置定时器模式 TL0 = 0x20; //设置定时初值 TH0 = 0xD1; //设置定时初值 TF0 = 0; //清除TF0标志 TR0 = 1; //定时器0开始计时 ET0=1; EA=1; } void Timer0_Service() interrupt 1 { static uchar dsp_com=0; Contr_Peri(0xc0,0); Contr_Peri(0xe0,dsp_code[dsp_buff[dsp_com]]); Contr_Peri(0xc0,1<<dsp_com); if(++dsp_com==8) dsp_com=0; ++count_key; ++count_temp; ++count_adc; ++count_dis; } void UartInit(void) //4800bps@12.000MHz { SCON = 0x50; //8位数据,可变波特率 AUXR |= 0x01; //串口1选择定时器2为波特率发生器 AUXR |= 0x04; //定时器2时钟为Fosc,即1T T2L = 0x8F; //设定定时初值 T2H = 0xFD; //设定定时初值 AUXR |= 0x10; //启动定时器2 ES=1; EA=1; } void Uart_Service() interrupt 4 { if(TI) { TI=0; busy=0; } if(RI) { read_number[read_i++]=SBUF; RI=0; } } void Send(unsigned char dat) { while(busy); busy=1; SBUF=dat; } void Send_String(char *s) { while(*s) { Send(*s++); } } void System_Init() { uchar i=0; Contr_Peri(0X80,0XFF); Contr_Peri(0xa0,0); for(i=0;i<70;i++) temp=read_temp()*100+0.5; for(i=0;i<10;i++) volt=read_adc(0x01)*1.96+0.5; Timer0_Init(); Set_Time(23,59,50); UartInit(); Delay10ms(); } void main() { System_Init(); while(1) { if(count_temp>749) { count_temp=0; temp=read_temp()*100+0.5; } if(count_adc>149) { count_adc=0; volt=read_adc(0x03)*1.96+0.5; } if(TH0<0XF0) { hor1=Read_Ds1302_Byte(0x85); min1=Read_Ds1302_Byte(0x83); sec1=Read_Ds1302_Byte(0x81); hor=(hor1/16)*10+hor1%16; min=(min1/16)*10+min1%16; sec=(sec1/16)*10+sec1%16; } if(count_dis>999) { count_dis=0; distance=Get_Distance(); } // dsp_buff[0]=temp/1000%10; // dsp_buff[1]=temp/100%10; // dsp_buff[2]=temp/10%10; // dsp_buff[3]=temp%10; // // dsp_buff[4]=10; // dsp_buff[5]=volt/100%10; // dsp_buff[6]=volt/10%10; // dsp_buff[7]=volt%10; // dsp_buff[0]=distance/100%10; // dsp_buff[1]=distance/10%10; // dsp_buff[2]=distance%10; // dsp_buff[3]=min/10%10; // // dsp_buff[4]=min%10; // dsp_buff[5]=10; // dsp_buff[6]=sec/10%10; // dsp_buff[7]=sec%10; if(read_i>0) { if(read_number[read_i-1]=='\n') { if((read_number[0]=='S')&&(read_number[1]=='T')&&(read_number[2]=='\r')) { Send_String("$"); Send(distance/10%10+'0'); Send(distance%10+'0'); Send(','); Send((temp/1000%10)+'0'); Send((temp/100%10)+'0'); Send('.'); Send((temp/10%10)+'0'); Send((temp%10)+'0'); Send_String("\r\n"); } else if((read_number[0]=='P')&&(read_number[1]=='A')&&(read_number[2]=='R')&&(read_number[3]=='A')&&(read_number[4]=='\r')) { Send_String("#"); Send(volt/1000%10+'0'); Send(volt/100%10+'0'); Send('.'); Send(volt/10%10+'0'); Send(volt%10+'0'); Send_String("\r\n"); } read_i=0; } else if(read_i==6) { Send_String("ERROR\r\n"); read_i=0; } } // if(count_key>9) // { // count_key=0; // Scan_Key(); // } } }