c8051f340 18B20显示环境温度，用来校准片内温度传感器的偏移值和斜率，显示出了AD转换后的电压，再显示出片内温度传感器的温度，误差不过2度，程序可以运行-C8051f340 18 b20 according to environment temperature to the offset value of calibration on chip temperature sensor and slope, and shows the voltage after the AD conve