基于FPGA的LPC总线转多路SPI总线设计  

Design of LPC Bus to Multi-Channel SPI Bus Based on FPGA

作　　者：蒋国庆 顾军 Jiang Guo-qing;Gu Jun(Ceyear Technologies Co.,Ltd,Shandong Qingdao 266555)

机构地区：[1]中电科思仪科技股份有限公司,山东青岛266555

出　　处：《电子质量》2022年第10期39-45,共7页Electronics Quality

摘　　要：该文介绍了LPC和SPI总线的应用场景,以及总线协议的工作原理。通过对工作原理的研究完成了LPC总线与多路SPI总线转换方案设计,提出了基于FPGA的具体实现方法,具有逻辑清晰、灵活高效和高扩展性特点,能够实现LPC总线对SPI总线设备的多路识别和通信。最后通过仿真实验,得到了I/O读写模式下写和读的时序图,验证了设计的可靠和有效性。In this paper,we have introduced the application scenarios of LPC bus and SPI bus,and the working principle of the Bus.The LPC bus and multiple SPI bus conversion scheme is designed by studying the working principle,and the implementation method based on FPGA is proposed.It has the characteristics of clear logic,flexibility,efficiency and high expansibility,and can realize LPC bus to SPI bus device multiplexing recognition and communication.Finally,the time sequence diagram of write and read in I/O mode is obtained through simulation experiment,which verifies the reliability and effectiveness of the design.

关 键 词：LPC总线 多路识别 SPI总线 时序图 

分 类 号：TP336[自动化与计算机技术—计算机系统结构] TN79[自动化与计算机技术—计算机科学与技术]