【正文】 舉足輕重的作用。其中新興技術(shù)由于其實(shí)用性廣、成本低廉被廣泛發(fā)展及運(yùn)用。由于單片機(jī)有很強(qiáng)的實(shí)用性及開發(fā)周期短等優(yōu)點(diǎn)，單片機(jī)的設(shè)計(jì)也越來越廣泛。該播放器可以讀取外置存儲(chǔ)設(shè)備，對(duì)存儲(chǔ)設(shè)備內(nèi)的音頻文件進(jìn)行讀取及解碼，再通過外置音頻播放。 【關(guān)鍵詞】stc89c52。液晶顯示Design of Intelligent Music PlayerAbstract Technology industry plays a vital role in our life, with the improvement of people’s level of modernization . The emerging technologies have been extensively developed because of its wide availability and low cost. SCM technology, as a symbol of emerging technologies, develops also rapidly. As the microcontroller has the advantage of a strong practicability and short developing cycle, the design of microcontroller has bee increasingly widespread. The name of the design is a smart music player, which choose stc89c52 MCU as the master. The music player achieves control music playback functions by means of programming. The player can read external storage devices, store and decode the files automatically, and then played by the external device. The function of keys controlling is a big program in this project. The player is set appropriate keys to control song selection, play and stop. 【Key words】 stc89c52 。LCD display目 錄1 緒 論 ..................................................................................................................................1 研究背景和現(xiàn)狀 ................................................................................................................1 研究的目的和意義 .............................................................................................................12 智能音樂演奏器的方案對(duì)比論證 .......................................................................................3 智能音樂演奏器的實(shí)現(xiàn)功能 .............................................................................................3 智能音樂演奏器的實(shí)現(xiàn)功能圖 .........................................................................................3 系統(tǒng)各個(gè)子系統(tǒng)的方案對(duì)比 .............................................................................................3 系統(tǒng)主控方案論證 .................................................................................................3 電源供電方案論證 .................................................................................................4 顯示方案論證 .........................................................................................................5 按鍵輸入方案論證 .................................................................................................6 語音模塊論證 ..........................................................................................................73 智能音樂演奏器的硬件設(shè)計(jì) ...............................................................................................8 單片機(jī)系統(tǒng)設(shè)計(jì) ................................................................................................................8 單片機(jī)概述 .............................................................................................................8 單片機(jī)管腳及功能說明 .........................................................................................8 單片機(jī)最小系統(tǒng)設(shè)計(jì) .............................................................................................9 LCD 顯示電路設(shè)計(jì) ...........................................................................................................10 LCD1602 操作時(shí)序及引腳定義 .............................................................................10 LCD1602 的硬件設(shè)計(jì) ............................................................................................11 語音轉(zhuǎn)換模塊設(shè)計(jì) ..........................................................................................................12 語音模塊概述 .......................................................................................................12 語音模塊芯片引腳定義及功能描述 ...................................................................13 語音模塊觸發(fā)時(shí)序 ...............................................................................................134 智能音樂演奏器的軟件設(shè)計(jì) .............................................................................................15 開發(fā)軟件簡(jiǎn)介 ..................................................................................................................15 應(yīng)用程序設(shè)計(jì) ..................................................................................................................15 主程序的設(shè)計(jì) .......................................................................................................15 LCD 顯示程序設(shè)計(jì) ................................................................................................16 按鍵檢測(cè)程序設(shè)計(jì) ...............................................................................................19 NV020 模塊的程序設(shè)計(jì) ...........................................................................