现代电子技术2017，Vol.40Issue(4)：86-90,5.DOI:10.16652/j.issn.1004-373x.2017.04.022
多串口并行通信数据传输系统设计
Design of a data transmission system for multi-serial port parallel communication
摘要
Abstract
The traditional multi⁃serial port parallel communication data transmission system is unable to obtain the serial port number autonomously,which means that its users must know the interface code in advance. This increases the working time of the system intangibly. Therefore,a multi⁃serial port parallel communication data transmission system based on FPGA was de⁃signed. In this system,the serial port data receiving module is used to collect the multi⁃serial port data and control the communi⁃cation data baud rate through the control register,and the Nios Ⅱ processor is adopted to make eight kinds of channels work to⁃gether for data transmission to the parallel⁃serial conversion module. The parallel⁃serial conversion module adds channel identifi⁃cation to the output 8⁃bit parallel data,executes the conversion processing. and sends the processed parallel data to the serial port output choosing module. The serial port output choosing module is designed according to the data pulse rising edge. The module sends out the data in each channel bit by bit in serial mode through demux. The transmission system design,the work⁃flow design of Nios Ⅱ processor and communication equipment design and packaging are performed in the software. The experi⁃mental results show that the system has realized the data transmission in eight serial ports on the FPGA,and has high success rate of data reception.关键词
多串口/并行通信/数据传输系统/数据采集Key words
multi-serial port/parallel communication/data transmission system/data acquisition分类
信息技术与安全科学引用本文复制引用
王春媚..多串口并行通信数据传输系统设计[J].现代电子技术,2017,40(4):86-90,5.基金项目
国家自然科学基金 （）
