摘要
UART是用于控制计算机与串行设备的装置,在嵌入式系统中它操作简单、工作可靠、抗干扰强。本文介绍了一种近距离的通信方法,讲述了UART的原理和软件设计的改进,在ARM中采用串口通信技术,具有使用方便、程序简单、可读性好、工作效率高等优点,可以广泛应用于基于串行通信的各种场合。结果表明,此设计有助于提高数据传输的实时性。
UART is an equipment which is used to control computer and serial device. It is easy to operate, work reliably and has strong antijamming. This article introduces a method of short distance communication. Then UART＇s theory and software flow are expounded. Use technology of serial communication in ARM to make the system convenient, easy, readable and efficient. It can be used in the circumstances based on serial communication. The result indicates it can help to enhance the transmitted data＇s real
出处
《科技信息》
2008年第13期46-47,共2页
Science & Technology Information
关键词
通用异步收发器
异步通信
ARM
中断
UART
asynchronous communication
ARM
interrupt time performance
