| PC机与多台单片机通信控制器的设计 |
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| 引用本文： | 孙克梅.PC机与多台单片机通信控制器的设计[J].沈阳航空工业学院学报,2005,22(5):63-65. |
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| 作者姓名： | 孙克梅 |
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| 作者单位： | 沈阳航空工业学院电子工程系,辽宁,沈阳,110034 |
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| 摘 要： | 针对一台PC机与多台MCS-51单片机构成的小型集散控制系统的特点,介绍了系统中通信控制器的设计方法.通信控制器以AT89S51单片机为核心,采用8251实现串口扩展,并通过基于RS-232C标准和RS-485标准的串行通信技术的应用,解决了小型集散控制系统的通信问题,减轻了PC机的通信负担.经过软硬件的设计和联机调试,测试结果表明,该控制器的应用不仅提高了集散控制系统数据传输的可靠性,而且提高了整个系统控制的实时性.此外,控制器具有结构简单的优点.
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| 关 键 词： | 通信控制器 单片机 串行通信 |
| 文章编号： | 1007-1385(2005)05-0063-02 |
| 修稿时间： | 2005年9月20日 |
Design of communication controller between PC and multi-single-chip computers |
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| SUN Ke-mei.Design of communication controller between PC and multi-single-chip computers[J].Journal of Shenyang Institute of Aeronautical Engineering,2005,22(5):63-65. |
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| Authors: | SUN Ke-mei |
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| Abstract: | A communication controller is introduced in this thesis.It is fit for the distributed control system which is a system composed of one PC computer and many MCS-51 single-chip microcomputers.AT89S51 is used as the core chip of the communication controller.Meanwhile 8251 is adopted to expand the serial port of single-chip microcomputer in the scheme.The communication controller can realize communication between PC and MCS-51 single-chip microcomputers through RS-232C and RS-485 serial communication interface.So that communication burden of PC will be relieved.It has been proved that distributed control system can guarantee not only high transmission reliability,but also real-time controlling by the application of communication controller.In addition,the controller is concisely structured. |
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| Keywords: | communication controller single-chip microcomputer serial communication |
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