【正文】 ...................................................................................................................4 控制器模塊 ........................................................................................................................................4 顯示模塊的分析與選擇 ....................................................................................................................4 測速傳感器的分析與選擇 ................................................................................................................4 PWM 實現(xiàn)方案論證 ...........................................................................................................................5 鍵盤的方案分析與選擇 ....................................................................................................................6 輸入輸出通道的分析 ........................................................................................................................7 驅(qū)動模塊的分析與選擇 ....................................................................................................................7 系統(tǒng)硬件組成及各模塊功能 ....................................................................................................................7 本章小結(jié) ....................................................................................................................................................9第三章 系統(tǒng)硬件設(shè)計 ........................................................................................................................................10 CPU 主控制模塊 ......................................................................................................................................10 電源電路 ..................................................................................................................................................12 H 橋驅(qū)動電路 ...........................................................................................................................................13 鍵盤部分 ..................................................................................................................................................14 電機測速電路的設(shè)計 ..............................................................................................................................15 顯示模塊 ..................................................................................................................................................15 整體電路設(shè)計 ..........................................................................................................................................17 本章小結(jié) ..................................................................................................................................................17第四章 系統(tǒng)軟件設(shè)計 ........................................................................................................................................18 主程序 ......................................................................................................................................................18 鍵盤掃描子程序 ......................................................................................................................................19 PWM 信號發(fā)生程序 .................................................................................................................................21 測速子程序 ..............................................................................................................................................22 顯示子程序 ..............................................................................................................................................23 本章小結(jié) ..................................................................................................................................................24第五章 系統(tǒng)調(diào)試與分析 ....................................................................................................................................25 軟件調(diào)試 ..................................................................................................................................................25 仿真軟件調(diào)試 ..........................................................................................................................................26 硬件調(diào)試 ..................................................................................................................................................29 調(diào)試故障及原因分析 ...............................................................................................................................29 本章小結(jié) ..................................................................................................................................................30總 結(jié) ................................................................................................................................................................31參考文獻 ..............................................................................................................................................................32致 謝 ................................................................................................................................................................33附 錄 ..................................................................................................................................................................34附錄 A 系統(tǒng)原理圖 .......................................................................................................................................34附錄 B 系統(tǒng)實物圖 ........................................................................................................................................35附錄 C 部分程序 ............................................................................................................................................36第一章 前言 課題選擇的背景直流電機是最常見的一種電機，它已經(jīng)廣泛應(yīng)用于交通、化工、航空、機械等領(lǐng)域中。 governor