DS18B20温度传感器课图和源程序程

DS18B20温度传感器课图和源程序程

DS18B20温度传感器课程

#include <reg52.h> #include <intrins.h>

typedef unsigned char uint8; #define uint unsigned int #define uchar unsigned char

sbit DQ = P3^3; // 定义DQ引脚为P3.3

uchar code Bw[10]= {0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};//百位编码 uchar code Xsw[16]={0x30,0x31,0x31,0x32,0x33,0x33,0x34,0x34,0x35,0x36,0x36,0x37,0x38,0x38,0x39,0x39};//小数位编码 sbit RS = P2^0 ; sbit RW = P2^1 ; sbit EN = P2^2 ; sbit BUSY = P0^7; uchar wendu;

uchar temp_g,temp_d;

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