【正文】 史、發(fā)展和應用 ........................................................................................ 4 2. 總體設計 .......................................................................................................................... 6 設計要求 .................................................................................................................... 6 設計方案選擇 ............................................................................................................ 6 整體設計思路 ............................................................................................................ 6 3. 系統(tǒng)硬件設計與部分電路說明 ...................................................................................... 8 硬件設計框圖 ............................................................................................................ 8 部分電路說明 ............................................................................................................ 8 電源及啟動電路 ................................................................................................ 8 復位電路 ............................................................................................................ 9 時鐘電路 .......................................................................................................... 10 通信電路 .......................................................................................................... 10 鍵盤電路 .......................................................................................................... 11 流水燈電路 ...................................................................................................... 11 音頻電路 .......................................................................................................... 12 電路原理圖及說明 .................................................................................................. 12 4. 系統(tǒng)軟件電路設計與分析 ............................................................................................ 13 音樂程序設計 .......................................................................................................... 13 音樂程序流程圖 .............................................................................................. 14 流水燈設計 .............................................................................................................. 16 流水燈程序流程圖 .......................................................................................... 16 流水燈程序 ...................................................................................................... 16 音樂流水燈程序 ...................................................................................................... 16 音樂流水燈程序流程圖 .................................................................................. 16 音樂流水燈程序 .............................................................................................. 17 5. 系統(tǒng)調試與仿真 ............................................................................................................ 19 硬件調試 .................................................................................................................. 19 軟件調試 .................................................................................................................. 19 軟件仿真 .................................................................................................................. 19 總 結 ................................................................................................................................. 22 致 謝 ................................................................................................................................. 23 參考文獻 ............................................................................................................................. 24 附錄一 ................................................................................................................................. 25 附錄二 ................................................................................................................................. 26 附錄三 ................................................................................................................................. 31 附錄四 ................................................................................................................................. 32 東華理工大學長江學院畢業(yè)設計 緒論 1 1. 緒 論 單片機的概念 單片機是在一塊芯片上超大規(guī)模集成技術集中了中央處理單元（ CPU）、隨機存儲器（ RAM）、只讀存儲器（ ROM）、特殊功能寄存器（ SFR）和各種輸入 /輸出（ I/O）接口（定時 /計數(shù)器、中斷系統(tǒng)接口、并行和串行 I/O 接口以及 A/D 轉換接口等）的微型計算機，又稱微控制器。s fashion and trend. Zi millionstate of flowing water lamp can give a person one kinds visual impact. Intends to adopt AT89C51 microcontroller to go achieve such kaleidoscopic of flowing water lights. MCU technology is a kind of tradition and typical technical, with intelligent, the volume is small, high integration and price inexpensive and so on many unique advantages. Moreover singlechip obviously superior to other electronic circuit, its hardware circuits and software aspects of are not particularly plicated. The singlechip design will bine theory and practice, the main use AT89C51 singlechip design of a musical water lights. First, design a stable DC power supply circuit, and then design a reset circuit for the microcontroller to provide normal working conditions, and then design a clock circuit and sound driver circuit, will enable MCU to better control and pile music part, in addition to design a to facilitate munication circuit chip and PC connectivity and munication, and finally also need to design the circuit to control the music keys light water. In order to make the buzzer to normal design an audio circuit needs to happen. After the hardware circuit design to connect the modules for simulation and debugging. Software design will need to be piled each circuit module, and the desi