| 基于DSP的实时数据采集系统中的双机通信 |
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| 引用本文： | 张丽娟. 基于DSP的实时数据采集系统中的双机通信[J]. 上海应用技术学院学报：自然科学版, 2007, 7(2): 139-142,146 |
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| 作者姓名： | 张丽娟 |
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| 作者单位： | 上海应用技术学院机械与自动化工程学院 上海200235 |
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| 基金项目： | 上海市教委高校选拔培养优秀青年教师科研专项基金 |
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| 摘 要： | 在基于DSP的实时数据采集系统中采用了主从式的系统结构,主从式硬件系统设计的关键是主机与从机之间的数据通信。HPI是TI公司数字信号处理器(DSP)中用于和主机进行双向数据通信的8位并行接口,HPI使DSP与主机接口电路简单,不需要附加外部的接口逻辑。介绍了系统的整体功能,说明了HPI的原理,并给出了数字信号处理器TMS320VC5402与单片机的硬件接口电路和软件设计。
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| 关 键 词： | 数据采集 主机接口 数字信号处理器 单片机 |
| 文章编号： | 1671-7333（2007）02-0139-04 |
| 修稿时间： | 2007-03-14 |
Two Machine Communication in Real Time Data Acqusition System Based on Digital Signal Processor |
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| ZHANG Li-juan. Two Machine Communication in Real Time Data Acqusition System Based on Digital Signal Processor[J]. Journal of Shanghai Institute of Technology: Natural Science, 2007, 7(2): 139-142,146 |
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| Authors: | ZHANG Li-juan |
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| Affiliation: | School of Mechanical and Automation Engineering, Shanghai Institute of Technology, Shanghai 200235, China |
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| Abstract: | The real time data acqusition system based on digital signal processor adopts the principal and subordinate structure,and the two machine communication is essential to the design of principal and subordinate system.The host port interface(HPI) are an 8-bit parallel port used to interface a host processor or device to the Texas Instruments(TI) digital signal processor(DSP).The HPI enables the DSP to interface to host processors(typically microcontrollers) bidirectionally with minimal or no external interface logic.In this paper,the whole structure of the system and the basic theory of HPI are introduced.Also,the hard ware interface and a software protocol to communicate between the TMS320VC5402 DSP and the single chip microcontroller are presented. |
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| Keywords: | data acqusiton host port interface digital signal processor singlechip microcontroller |
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