| 51单片机的串行口扩展方法 |
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| 引用本文： | 景鑫.51单片机的串行口扩展方法[J].微计算机信息,2005(13). |
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| 作者姓名： | 景鑫 |
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| 作者单位： | 西安科技大学 710054 |
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| 基金项目： | 国家自然科学基金资助(编号:50174045) |
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| 摘 要： | 在以单片机为核心的多级分布式系统中,常常需要扩展单片机的串行通信口,本文分别介绍了基于SP2538专用串行口扩展芯片及Intel8251的两种串行口扩展方法,并给出了实际的硬件电路原理及相应的通信程序段。
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| 关 键 词： | 串口扩展 单片机 SP2538 Intel8251 |
Solutions of Serial- expanding to 51 Single- chip Microcomputer |
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| Jing,Xin.Solutions of Serial- expanding to 51 Single- chip Microcomputer[J].Control & Automation,2005(13). |
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| Authors: | Jing Xin |
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| Abstract: | The serial interface of microcontroller is often to beexpanded in multi- step distributed system based on single- chipmicrocomputer. In this paper, two solutions of serial- expandingbased on expert serial interface expanding chip sp2538 and In-tel8251 are introduced, and the multi- serial interface hardwarecircuit and the corresponding communication programs based onmicrocontrollers are listed.
Jing,Xin Chang,Xintan |
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| Keywords: | Serial- expanding Single- chip Microcomputer SP2538 Intel8251 |
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