Simulation design of ultrasonic reversing radar based on single chip microcomputer-EEWORLD

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#include

#include "LCD.H"

#include "18B20.H"

#include "delay.h"

sbit k1=P3^5;

sbit k2=P3^6;

sbit csb=P2^5;

sbit csbint=P3^2;

sbit bg=P2^6;

sbit fmq=P3^3;

unsigned char aa[]={' ',' ','D','i','s','t','a','n','c','e',':'}; //Distance

unsigned char bb[11]={' ',' ',' ',' ','.',' ',' ',' ',' ',' ',};

unsigned char cc[]={'A','.','A','A','m'};

unsigned char zf,a1,a2,a3,xs,e,n,m,z; //zf is the positive and negative temperature flag; a1,a2,a3, the key setting program sets the meter, decimeter, centimeter temporary storage variables

//xs, e is used to set the variable of flashing display in the key program; flag, unused, n, is the backlight control flag variable; m, z;

unsigned int dz,k,s,j,bgz,k;

int temp;

float temperature,csbc,wdz;

bit wh;

main()

{

TH0=0;

TL0=0;

TMOD=0X11; //T1, T0 are 16-bit timers

EA=0;

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