使用单片机的CPLD通信系统,具有传输速度快、方便、电路结构简单等特点,能够满足控制简单、实用性强、通信效率高等标准。本文主要阐述了单片机与CPLD通信系统的硬件设计以及基于C8051F020单机与CPLD的通讯系统硬件设计,然后研究了CPLD软件设计的基本流程,以期为读者提供参考。引言随着现代科技的不断发展,电力系统呈现出规模化以及集成化的高速推进趋势,传统的大电路和以逻辑功能调试的模式,随 The use of single-chip CPLD communication system, with the transmission speed, convenience, simple circuit structure, etc., to meet the simple control, practicality, high communication efficiency standards. This article mainly elaborated the hardware design of single-chip microcomputer and CPLD communication system and hardware design of communication system based on C8051F020 stand-alone and CPLD, and then studied the basic process of CPLD software design, in order to provide reference for readers. INTRODUCTION With the continuous development of modern science and technology, the power system has shown the tendency of large-scale and integrated high-speed propulsion. The traditional large circuit and the mode of logic function debugging