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在已有的测控系统平台上,实现适合工业控制领域使用的嵌入式USB主机系统,将嵌入式USB主机的应用拓展到工业控制领域中显得尤为重要,主要针对嵌入式USB主机处理系统硬件设计进行探讨,对芯片功能和结构分析的基础上,对芯片外围电路进行深入细致的分析与设计。同时,因为USB通信较高的传输速度对物理连接层的稳定性要求很高,还对对过流检测和抗干扰等方面可能出现的问题进行细致的分析和解决,有利于提高嵌入式USB主机处理系统设计水平。
In the existing measurement and control system platform, it is very important to develop an embedded USB host system suitable for industrial control. It is very important to extend the application of embedded USB host to the field of industrial control. The hardware design of the embedded USB host processing system is mainly carried out Based on the analysis of chip function and structure, the chip peripheral circuits are analyzed and designed in detail. At the same time, USB communication because of the higher transmission speed of the physical connection layer of the high stability requirements, but also for over-current detection and interference and other aspects of the problems that may arise careful analysis and solution will help improve the embedded USB host Handle system design level.