说明：  //实验目的：使用ds18b20测量温度，并在4位共阴极数码管上显示 //实验材料：MSP430F149开发板，DS18B20一个，杜邦线15条，3元普通4位共阴极数码管一个 //MSP430的I/O口直接接4位共阴极数码管的12个脚 //接线说明：DS18B20数据口接P17，电源接3.3V直流；P40~P47接数码管a、b、c、d、e、f、g、dp // P50~P53接位1、位2、位3，位4
(/ / experiment Objective: use DS18B20 to measure the temperature and display on the 4 position common cathode digital tube. / / Experimental Materials: MSP430F149 Development Board, DS18B20 One, DuPont Line 15, 3-yuan Common 4-bit Common Cathode Digital Tube One The I/O port of //MSP430 directly connects 12 feet of 4 common cathode digital tubes. / / wiring instructions: DS18B20 data interface to P17, power supply to 3.3V DC; P40 ~ P47 digital tube a, b, c, d, e, f, g, DP / / P50~P53 is 1, bit 2, bit 3, bit 4)