基于单片机与FPGA的多通道数字I/O电路设计  

Design of the Multichannel Digital I/O Circuit Based on Microcontroller and FPGA

作　　者：李玉琳 郝巨东[1] 刘开源[1] 于波 贺瑾瑜 LI Yu-lin;HAO Ju-dong;LIU Kai-yuan;YU Bo;HE Jin-yu(North Automatic Control Technology Institute,Taiyuan 030000,China)

机构地区：[1]北方自动控制技术研究所,太原030000

出　　处：《火力与指挥控制》2018年第8期176-180,共5页Fire Control & Command Control

摘　　要：针对传统数字I/O电路功能单一,无法满足设备不同信号传输时序不同的需求,利用单片机丰富的外设接口功能以及FPGA引脚数目多、逻辑控制能力强的特点,设计了基于单片机和FPGA架构的多通道字I/O电路,应用于某型防空武器系统的火控计算机。该设计采用STM32的FSMC并行总线实现单片机与FPGA的连接,利用QuartusⅡ开发平台对FPGA内部相关模块进行逻辑设计与搭建,实现多通道信号交互。经实际验证,该方案切实可行,满足火控计算机设计需求,能够实现火控计算机与外围单体之间的信号交互。In this paper,a multichannel digital I/O circuit is proposed based on microcontroller and FPGA.The circuit is aimed to solve the problem of limited function of traditional digital I/O circuit,and meet the requirements of various transferring timing for different signals.This circuit is applied to the fire control computer of the air defense weapon system.The connection between microcontroller and FPGA is realized by FSMC parallel bus of STM32.The related?modules of FPGA are designed by QuartusⅡ.The experimental results show that this plan is practicable to meet the design requirements of the fire control computer.It can realize the signals interaction between the fire control computer and the peripheral monomer.

关 键 词：逻辑电路 FPGA 多通道 数字I/O 

分 类 号：TN79[电子电信—电路与系统]