基于DSP正弦信号发生器设计  

Design and Realization of a Sinusoidal Signal Generator Based on DSP

作　　者：廖柏林[1] 王星胜[1] 林坤[1] 陈旭伟[1] 韩怀梅[1] 

机构地区：[1]吉首大学物理科学与信息工程学院,湖南吉首416000

出　　处：《电子科技》2011年第2期21-23,29,共4页Electronic Science and Technology

基　　金：吉首大学校级科研基金资助项目(09JD014)

摘　　要：提出了一种基于TMS320C5402实现正弦信号发生器的设计原理与方法,介绍了所设计的正弦信号发生器硬件电路结构和软件程序流程图。结合DSP硬件特性,通过使用泰勒级数展开法得到设定参数的正弦波形输出,达到设计目的。该信号发生器弥补了通常信号发生器模式固定,波形不可编程的缺点,其具有实时性强,波形精度高,可方便调节频率和幅度、稳定性好等优点。This paper presents the design principle and method to produce a sinusoidal signal generator based on TMS320C5402 chip,and describes in detail the design of the hardware circuit structure and software process flowchart of the sinusoidal signal generator.On the basis of the DSP hardware features and by using a Taylor series expansion law to get the sine wave output set parameters,the design is fulfilled.Unlike the general signal generator with the fixed mode and unprogrammable waveform,this signal generator generates a real-time,high-precision waveform with good stability,and its frequency and voltage can be easily adjusted.

关 键 词：数字信号处理器 信号发生器 多通道缓冲串行口 独立键盘 

分 类 号：TN911.72[电子电信—通信与信息系统]