摘要
设计的装置实现RS422接口和USB接口的转接,采用FPGA作为连接RS422接口与USB接口的控制单元,对数据进行串并转换和两种接口数据传输速率匹配;转接装置采用USB单片机CY7C68013作为数据按照USB协议转换的单元,实现FPGA通过CY7C68013与PC机的双向通信。下面阐述转接装置的原理,并附有数据测试结果。
The design realizes the transformation between RS422 and USB interface,by using FPGA as the control unit. FPGA plays an important role to make the conversion between parallel data and serial data and match the transmission rate between RS422 and USB interface. The transfer device uses USB microcontroller CY7C68013 to converse the data according to the USB protocol,realizing the mutual transmission between FPGA and PC. The principle of the transfer device is described as below,and the results of the test are attached.
出处
《电子器件》
CAS
北大核心
2016年第6期1425-1428,共4页
Chinese Journal of Electron Devices
