摘要
针对数字信号处理器(DSP)与其它控制器的通信需要,设计了一种基于TMS320LF2407A的串行通信系统。该系统通过串行外设接口(SPI)和通用异步收发器(URAT)两个通信模块实现DSP与PC主机和数显外设的串行通信。详细介绍了DSP串行通信系统的硬件设计原理和方法,给出了系统运行流程和相关的软件构架。通信实验表明,该系统电路设计简单,传输数据稳定准确,对DSP系统在通信方面的开发具有一定的参考价值和实际意义。
A TMS320LF2407A-based serial communication system was developed to realize communications between digital signal processor（DSP） and other controllers.This system employed an Universal Asynchronous Receiver Transmitter（UART） module and a Serial Peripheral Interface（SPI） module to connect the DSP to a host PC and a client display peripheral respectively.Detailed principle and method for hardware design were introduced;communication programs and relative software structure were given.Communication experiments showed that the system was simple in circuit design and stable and accurate in data transmission.It has reference value and practical benefit to exploit communications of DSP system.
出处
《微处理机》
2010年第6期23-26,共4页
Microprocessors
关键词
数字信号处理
串行通信
外设接口
Digital signal processor
Serial communication
Peripheral interface
