摘要
本文介绍了USB接口多路通信芯片FT4232H的主要特点与性能,分析了基于Cortex-A9微处理器i.MX6和FT4232H的多串口扩展的实现原理,实现了i.MX6与FT4232H的软硬件接口设计。该方案成功应用到某车载系统中,结果显示扩展的串口具有稳定、可靠、误码率低等特点。
The main characteristics and performance of USB interface multiple serial port expansion chip FT4232H are introduced in this paper.The realization principle of multi serial port expansion based on Cortex-A9 microprocessor i.MX6+FT4232H is analyzed.The hardware and software interface design of i.MX6 and FT4232H is realized.The results have been successfully applied into a vehicle system,the extended serial port runs steadily,reliability and has a good BER performance.
出处
《智慧工厂》
2018年第8期42-43,49,共3页
Smart Factory
