摘要
UART作为RS 232协议的控制接口得到了广泛的应用,基于FPGA实现的UART设计可以使系统更加紧凑、稳定。系统结构进行了模块化分解,使之适应自顶向下(Top Down)的设计方法。核心部分采用有限状态机(FSM)实现,使控制逻辑直观简单,提高了设计效率。通过与计算机间的数据通信对设计的功能进行了验证,在此基础上衍生出一种将UART模块嵌入FPGA芯片与计算机互联进行功能验证和调试的新方法。
UART is used widely as the interface of RS 232 ,and to design it in FPGA can make system more compact and stable. The structure of the system is divided in modularization to fit the design method Top - Down. The core of this system is implemented with Finite State Machine （FSM）,it makes the logic of control briefness. An experiment Of communicating between UART and computer is designed to verificate the function of this system. And a new method of debugging the FPGA design by implanting UART into it to connect with computer is derived from this.
出处
《现代电子技术》
2008年第17期162-164,共3页
Modern Electronics Technique
关键词
通用异步收发器
串口通信
现场可编程逻辑器件
有限状态机
uniersal asynchronous receiver transmitter
serial port Communication
FPGA
finite state machine
