该系统结构简单，通用性强，成本低，修改灵活。
This system is simple in construction, universal in application, convenient in modification and low in cost.
该系统界面友好，操作方便，修改灵活，响应速度快。
The subsystem can be easily manipulated and updated with its friendly interface and high speed of processing.
该设计方法与传统的设计方法相比，具有外围电路简单，程序修改灵活和调试容易等特点。
Comparing with traditional design method, this design method has characteristics of simple peripheral circuit, easy modificative procedure and debugs, etc.
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