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文章针对８０９０单片机的特点，提出了一种利用８０９８内部资源获得高分辨率的Ａ／Ｄ转换结果及Ｄ／Ａ输出的方法。这种方法硬件结构简单，易于实现，对于８０９８单片机构成的测控系统有一定的实用价值。
Aiming at the characteristics of 8090 singlechip, this paper presents a method to obtain high resolution A / D conversion result and D / A output by using 8098 internal resources. This method is simple hardware structure, easy to implement, for 8098 SCM control system has a certain practical value.