單片機(jī)通信協(xié)議設(shè)計和軟件實現(xiàn)

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摘 要

在當(dāng)今信息社會，通信的重要性無庸質(zhì)疑。它使我們的工作效率大大提高。而串行通信作為一種基本的通信方式，現(xiàn)今也在各個領(lǐng)域被廣泛應(yīng)用。本課題研究串行通信系統(tǒng)，也是為了應(yīng)用于遠(yuǎn)程空調(diào)控制系統(tǒng)?？照{(diào)系統(tǒng)的遠(yuǎn)程控制是現(xiàn)在工程的新興技術(shù)，采用遠(yuǎn)程的空調(diào)分布式系統(tǒng)以被廣泛應(yīng)用于聯(lián)通和移動等通信行業(yè)的機(jī)房。而要實現(xiàn)遠(yuǎn)程控制，通信是必不可少的，通信的速率與正確性直接影響到整個系統(tǒng)的性能。因此，在整個遠(yuǎn)程空調(diào)控制系統(tǒng)實現(xiàn)的過程中，對串行通信的研究具有非常重要的意義。
本課題將研究一臺PC機(jī)與一臺單片機(jī)之間的通信。著重研究當(dāng)今流行的串行通信協(xié)議和串行通信電路的設(shè)計和糾檢錯算法的實現(xiàn)。先介紹串行通信的基本知識和單片機(jī)串行接口的工作方式。再根據(jù)本控制系統(tǒng)的要求，對RS-232通信協(xié)議和CRC循環(huán)冗余碼糾檢錯算法做深入的研究。最后結(jié)合硬件設(shè)計部分，通過C51編程來實現(xiàn)空調(diào)遠(yuǎn)程控制系統(tǒng)的通信傳輸。

關(guān)鍵詞：串行通信，通信協(xié)議，糾檢錯算法，循環(huán)冗余碼

ABSTRACT

In the information society, the correspondence importance does not need question now. It makes our working efficiency to enhance greatly. But the serial communication took one basic mailing address, now days also widely is applied in each domain. This topic research serial communication system, also is in order to apply in the long-distance air conditioning control system. The air-conditioning system long-distance control is the present project emerging technology, uses the long-distance air conditioning distributional system by widely to apply in correspondence profession and so on the link and migration engine rooms. But must realize the long-distance control, the correspondence is essential, the correspondence speed and the accuracy affect directly the overall system performance. Therefore, in the entire long-distance air conditioning control system realization process, has the extremely vital significance to the serial communication research.
This topic will study PC machine and between a monolithic integrated circuit correspondence. Emphatically studies now the popular serial communication agreement and the serial communication electric circuit design and investigates examines the miscount method realization. Introduces the serial communication first the elementary knowledge and the monolithic integrated circuit serial interface working. Again acts according to this control system the request, investigates to the RS-232 communication protocol and the CRC circulation redundant codes examines the miscount law to do the thorough research. Finally unifies the hardware design part, realizes the air conditioning long-distance control system correspondence transmission through the C51 programming.

Key words：Serial Communication; Communication Protocol; Investigates Examines The Miscount Law; Circulation Redundant Codes

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