单路DS18B20的verilog HDL 代码，精度为1℃无须转换数据，直接输出结果。占用300个LE资源。-Single DS18B20 the verilog HDL code, and an accuracy of 1 ℃ without converting the data, direct output. Occupy 300 LE resources.

用verilog语言编写，实现DS18B20测量温度的程序，包括整个工程文件。-Using verilog language, achieve DS18B20 temperature measurement procedures, and including the project file.