这个是比较详细的gnu MAKE手册，里面介绍了make的启动规则和一些文件-gnu make

DAC8411 驱动代码，内含有pdf文档以及应用解释，C51直接调用方便快捷，效率高。并且在套文件中引入了时序图，让读者更加方便使用！-DAC8411 driver code, which contains a pdf document interpretation and application, C51 convenient direct calls, and high efficiency. And the introduction of a timing diagram in sets