UART是广泛使用的串行数据通讯电路。本设计包含UART发送器、接收器和波特率发生器。设计应用EDA技术，基于FPGA/CPLD器件设计与实现UART。-UART is a widely used serial data communication circuit. The design includes UART transmitter, receiver and baud rate generator. Application of EDA design technology based on FPGA/CPLD device design and implementation of UART.