【正文】 .................................................................... 3 溫度采集器件的選擇 .................................................................................... 4 電機(jī)及其驅(qū)動器的選擇 ................................................................................ 4 3 系統(tǒng)硬件設(shè)計 ...................................................................................................................... 6 單片機(jī) STC90C516 RD+ ......................................................................................... 6 芯片特點(diǎn) ........................................................................................................ 6 引腳功能圖 .................................................................................................... 6 溫度傳感器電路 ....................................................................................................... 8 芯片 DS18B20 介紹 ...................................................................................... 8 DS18B20 的主要特性 ................................................................................. 10 18B20 的初始化 ........................................................................................... 11 DS18B20 的寫操作 ..................................................................................... 11 DS18B20 的讀操作 ..................................................................................... 11 直流電機(jī)驅(qū)動電路 ................................................................................................. 12 三極管簡介 .................................................................................................. 12 直流電機(jī)簡介 .............................................................................................. 12 直流電機(jī)驅(qū)動電路 ...................................................................................... 13 沈陽理工大學(xué)應(yīng)用技術(shù)學(xué)院學(xué)士學(xué)位論文 IV 串口通 信電路 ......................................................................................................... 13 串口通信介紹 .............................................................................................. 13 芯片 MAX232 介紹 ..................................................................................... 14 MAX232 電路連接圖 .................................................................................. 14 電源電路 ................................................................................................................. 15 電源芯片介紹 .............................................................................................. 16 電源芯片連接電路 ...................................................................................... 16 1602 電路 ................................................................................................................ 17 1602 芯片介紹 ............................................................................................. 17 基本操作時序 .............................................................................................. 18 RAM 地址映射圖 ........................................................................................ 18 LCD1602 的初始化 ..................................................................................... 19 顯示開 /關(guān)光標(biāo)設(shè)置 ..................................................................................... 20 數(shù)據(jù)控制及其他設(shè)置 .................................................................................. 20 4 系統(tǒng)軟件設(shè)計 .................................................................................................................... 21 編程語言簡介 ......................................................................................................... 21 單片機(jī)程序設(shè)計 ..................................................................................................... 22 總程序流程圖 .............................................................................................. 22 溫度采集子程序流程圖 .............................................................................. 23 軟件調(diào)試 ................................................................................................................. 24 系統(tǒng)硬件調(diào)試 ......................................................................................................... 24 調(diào)試問題及解決方法 ............................................................................................. 25 結(jié) 論 .................................................................................................................................. 26 致 謝 .................................................................................................................................. 27 參考文獻(xiàn) .................................................................................................................................. 28 附錄 A ...................................................................................................................................... 29 附錄 B ...................................................................................................................................... 31 沈陽理工大學(xué)應(yīng)用技術(shù)學(xué)院學(xué)士學(xué)位論文 1 1 引 言 系統(tǒng)研景究背 隨著科技的不斷進(jìn)步和發(fā)展， 單片機(jī) 的使用已經(jīng) 滲透到我們 日常 生活 當(dāng)中 的各個領(lǐng)域，幾乎很難找到 有 哪個領(lǐng)域沒有 使用 單片機(jī)的蹤跡。 關(guān)鍵詞 ： 散熱底座；單片機(jī)；智能控制 沈陽理工大學(xué)應(yīng)用技術(shù)學(xué)院學(xué)士學(xué)位論文 II ABSTRACT Notebook puter is portable and small, and its functions could meet the needs of the majority, with the developing of science and technology, the cost decline, and the price of the laptop base to be acceptable to most people. But with the increase in the number of using the laptop people, they exposed various problems, in addition to cost, people always concerned about dissipating heat extremely. In the confrontation of the laptop’s performance and portability, the most critical factor is dissipating heat, and laptop’s dissipating heat has been the bottleneck of the core technology. Sometimes it end up unexpected, it is always because of that