| DSP与MAX3140 UART数据通信的设计与实现 |
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| 引用本文： | 郭瑞君,侯成刚,刘晓晖.DSP与MAX3140 UART数据通信的设计与实现[J].仪器仪表用户,2005,12(2):59-61. |
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| 作者姓名： | 郭瑞君 侯成刚 刘晓晖 |
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| 作者单位： | 西安交通大学,陕西,西安,710049 |
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| 基金项目： | 湖南省机械设备健康维护重点实验室开放基金资助(KFJJ0401) |
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| 摘 要： | 基于RS-485总线构建的分布式监测网络具有数据传输距离远,组态灵活、可靠性高、成本低等优点。本文采用了通用异步收发器MAX3140实现DSP与RS-485网络的数据通信，介绍了MAX3140的主要功能和使用特点，以及TMS320VC5402的多通道缓冲串13(MCBSP)的时钟停止模式(SPI)；给出了接口的硬件电路和基于RS-485通信协议的通信测试软件设计。
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| 关 键 词： | MAX UART SPI DSP 接口 分布式 数据通信 通用异步收发器 MCBSP TMS320VC5402 |
| 文章编号： | 1671-1041(2005)02-0059-03 |
| 修稿时间： | 2004年12月15 |
Design and realization of data communication based on DSP and MAX3140 UART |
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| GUO Rui-jun,HOU Cheng-gang,LIU Xiao-hui.Design and realization of data communication based on DSP and MAX3140 UART[J].Electronic Instrumentation Customer,2005,12(2):59-61. |
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| Authors: | GUO Rui-jun HOU Cheng-gang LIU Xiao-hui |
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| Abstract: | The distributed supervision network based on RS-485 network has advantages of long distance for data transmission, flexible configuration, high reliability, low cost, ect. In this paper, data communication between DSP and RS-485 network is implemented by using Universal Asynchronism Receiyer-transmitter MAX3140, and main characteristics and usage of MAX3140, as well as clock stop mode of Multi-channel Buffered Serial. Port (McBSP) of TMS320VC5 402 are introduced. Moreover, the design of interface circuit between McBSP and MAX3140 and communication test software based on RS-485 communication protocol are presented. |
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| Keywords: | McBSP MAX3140 SPI RS-485 communication |
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