摘要
介绍了一种基于RS422串口的数据处理模块,给出了硬件电路实现和软件使用说明。主要从主板、电源模块、USB/RS422转换几个方面加以介绍,主要阐述了将USB接口转换成RS422接口的设计方案,同时简述了电源模块设计方法。调试证明,各功能模块工作正常、可靠。
This paper introduces a data-processing module based on RS422.The hardware design and the software illumination are given.It mainly introduces mainboard,DC/DC and USB/RS422 converter.The interface circuit of USB to RS422 is presented detailedly.The design of DC-DC converter is given simply.The module proves normal and stable in the application.
引文
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