AT89S52單片機實驗系統的開發與應用

電子機電論文編號:JD693  論文字數:35849,頁數:67

目  錄
摘  要 Ⅰ
ABSTRACT Ⅱ
第一章 緒論 1
1.1 研究背景 1
1.2微處理器概述 2
1.3微處理器應用 5
1.4本課題研究的主要內容 5
第二章 嵌入式系統概述 7
2.1嵌入式技術簡介 7
2.2嵌入式系統概述 7
2.3嵌入式系統的類型及特點 8
2.4嵌入式操作系統 9
2.5 AT89S52高性能單片機 11
2.6本章小結 20
第三章 C語言應用 21
3.1 C程序的組成部分 21
3.2 數據類型 24
3.3 格式輸入與輸出及案例 24
3.4 C運算元及功能 26
3.5 比較與邏輯運算元 27
3.6 C控制結構 27
3.7 C預處理程序 27
3.8 C函數庫及應用 28
3.9 C語言程序的編輯、編譯、運行 31
3.10 本章小結 32
第四章 AT89S52高性能單片機實驗系統開發 33
4.1 AT89S52實驗系統的設計 33
4.2 AT89S52單片機實驗系統使用方法 44
4.3 AT89S52單片機實驗系統實驗項目 46
4.4 實驗系統的功能擴展 51
4.5本章小結 57
第五章 總結與展望 59
5.1論文的主要工作及總結 59
5.2研究展望 59
參考文獻 61
致 謝 62

摘   要
目前單片機應用已滲透到各個領域，單片機技術的發展也因此日新月異。作為實踐性很強的應用型學科，單片機研發及教學離不開實驗。傳統的單片機實驗系統，需要頻繁拔插燒寫單片機芯片來編程，依賴于仿真機調試，實驗成本高且效率低，已不適應現代科技開發需求。如何充分合理利用單片機的性能，方便用戶高效學習與開發產品成為當前的研究熱點。本文從微處理器、嵌入式系統和C語言等三個方面著手，以AT89S52單片機為核心，設計出功能較強的新型單片機實驗系統。
首先研究了微處理器及開發工具，嵌入式系統類型特點、嵌入式操作系統等基礎理論。
其次深入研究AT89S52單片機性能特點，為實驗系統硬件開發打下了基礎。并針對新型實驗系統軟件開發要求，對C語言進行應用性研究。
最后，以AT89S52為核心，設計出包含集成穩壓電路、時鐘電路、復位電路、液晶顯示與控制電路、ISP在系統可編程器、RS232串行通信電路、開關電路、發光二極管顯示電路和ISD2560語音芯片的錄音/播放電路等九種外圍電路，并匯總為完整的原理圖。采用電子CAD（PROTEL99SE軟件）、圖像處理軟件（PhotoCap3）、計算機畫圖板設計繪制電路原理圖后再裝配成實驗板。利用C語言調整軟件dev C++IDE、編譯器Keil C（uVision-51）和調試器WinIDEA 9.0、ISP軟件等技術創新，實現了ISP在線仿真調試功能，將嵌入式技術融入到單片機實驗系統開發與應用中，適合于單片機系統開發、教學等需要頻繁刷新程序的場合，極大地提高了程序開發的效率，達到優化單片機實驗系統功能的目的。

關鍵詞：微處理器  嵌入式系統  AT89S52單片機  實驗系統  調試與仿真

Abstract
At present the monolithic integrated circuit（Microcontroller Unit,MCU）applications have penetrated into all fields，Therefore the monolithic integrated circuit technology development also changes with each new day. Practical application-as a strong academic, monolithic integrated circuit research and teaching can not leave the experiment. The traditional monolithic integrated circuit experiment system, needs frequently to pull out inserts the fever to write the monolithic integrated circuit chip to program，relies on to the simulation machine debugging, The experimental cost high also the efficiency is low, already unsuitable modern science and technology development demand. How to make rational use of monolithic integrated circuit performance, user-friendly and efficient product development has become the current study hot spot. This article from the microprocessor, Embedded Systems and the C language and so on three aspects begins, to draw up take the AT89S52 monolithic integrated circuit as a core, designs the function stronger new monolithic integrated circuit experiment system.
Firstly, studied the microprocessor and the development tools, Embedded Systems type characteristic, inserts basic theory and so on type operating system.
Secondly, deep researched in AT89S52 monolithic integrated circuit performance characteristic, raised utilization of the information, laid a foundation for the development of experimental hardware，and aimed at the new experiment system software development request, conducted the application research to the C language.
Finally, took AT89S52 as the core, Designed contains the integration voltage-stabilizer circuit, the clock electric circuit, repositions the electric circuit, the liquid crystal display and the control circuit, ISP in-system programmable devices, the RS232 serial communication electric circuit in the system, the switching circuit, LED display circuit chip and the ISD2590 pronunciation chip recording/broadcast electric circuit and so on nine kind of periphery electric circuits, and compiles for the integrity schematic diagram. After uses electronic CAD (PROTEL99SE software), picture processing software (PhotoCap3), and the computer picture chart board design plan electric circuit schematic diagram Assembly the experimental board.
Using C language adjustment software dev C++IDE, compiler Keil C (uVision-51) and debugger WinIDEA 9.0, technical innovation and so on ISP software, has realized the ISP on-line simulation debugging function, Inserts the embedded technology to melt into to in the monolithic integrated circuit experiment system development and the application, for the monolithic integrated circuit study and should the amount used body custom make, suit to the monolithic integrated circuit system development, the teaching and so on needs frequently to renovate the procedure the situation, enormously enhanced the procedure development efficiency, will achieve the optimized monolithic integrated circuit experiment system function the goal.

Key words：Microprocessor；Embedded Systems；AT89S52 MCU；Experimental system； Debugging and simulation