接收从从机发送过来的数据。接收DS18B20的程序,数据脚P3.3、P3^5、P3^6，温度传感器18B20汇编程序,

** 采用器件默认的12位转化，最大转化时间750微秒,显示温度0到99度,显示精

** 度为1度。显示采用4位LED共阳显示测温值，P0口为段码输入,P24~P27为位选 -Receiving data sent from the slave. Receiving DS18B20 program data pin P3.3 is, P3 ^ 5, P3 ^ 6, the temperature sensor 18B20 assembler,** 12 conversion device default maximum conversion time of 750 microseconds, and to display the temperature of 0 to 99 degrees, the display fine** 1 degree. LED common anode display 4 show the temperature value, P0 port for the segment code input, P24 ~ P27 ' Choice