| 基于TMS320VC5402的RS_485通信设计 |
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| 引用本文： | 宋坤,黄浩乾,刘明初,陈熙源.基于TMS320VC5402的RS_485通信设计[J].南京气象学院学报,2011(5):448-451. |
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| 作者姓名： | 宋坤 黄浩乾 刘明初 陈熙源 |
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| 作者单位： | 东南大学仪器科学与工程学院 南京 210096;东南大学仪器科学与工程学院 南京 210096;南京杰思尔设备工程有限公司 南京 210042;东南大学仪器科学与工程学院 南京 210096 |
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| 基金项目： | 航空科学基金(20090869008) |
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| 摘 要： | 完成了基于TMS320VC5402 DSP的RS_485通信的硬件设计和软件编程.基于美国TI公司TMS320VC5402 DSP芯片的多通道缓冲口(McBSP)进行适当的硬件扩展,以SPI方式直接和MAXIM公司的MAX3100通用异步串行收发器接口,然后经Linear Technology公司的LTC1480超低功耗RS_485收发器,从而实现了一种新的基于RS_485标准接口串行通讯的数据传输,充分利用了DSP的片上资源,使硬件和软件结构尽量简单化.
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| 关 键 词： | 多通道缓冲串行口(McBSP) 串行外设接口(SPI) 串行通信 通用异步收发传输器(UART) RS_485 |
| 收稿时间： | 2011/9/10 0:00:00 |
The RS_485 communication design based on TMS320VC5402 |
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| SONG Kun,HUANG Haoqian,LIU Mingchu and CHEN Xiyuan.The RS_485 communication design based on TMS320VC5402[J].Journal of Nanjing Institute of Meteorology,2011(5):448-451. |
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| Authors: | SONG Kun HUANG Haoqian LIU Mingchu and CHEN Xiyuan |
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| Institution: | School of Instrument Science & Engineering, Southeast University, Nanjing 210096;School of Instrument Science & Engineering, Southeast University, Nanjing 210096;Jie Sier Equipment Engineering Company Limited, Nanjing 210042;School of Instrument Science & Engineering, Southeast University, Nanjing 210096 |
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| Abstract: | The hardware design and software programming of the RS_485 communication is completed based on the TMS320VC5402 DSP.In order to extend the hardware,designer connects directly the multi-channel buffered port(McBSP) of Texas Instrument''s TMS320VC5402 DSP chip by the SPI mode with MAXIM''s MAX3100 universal asynchronous serial transceiver interface,and then get through Linear Technology''s LTC1480 which is a low power RS_485 transceiver,thus achieve a new standard interface based on RS_485 serial communication.The design makes full use of the DSP on-chip resources to simplify the hardware and software architecture as much as possible.The paper presents a hardware connection principle diagram and introduces related software programming. |
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| Keywords: | McBSP(Multichannel Buffered Serial Port) SPI(Serial Peripheral Interface) serial communication UART(Universal Asynchronous Receiver/Transmitter) RS_485 |
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