【正文】 error response tone, low consumption, can plete the required to function.Key Words： AVR microcontroller；Serial PC； Contactless buttons； The clock display目 錄畢業(yè)設計（論文）任務書 ........................................................................................................1摘 要 ....................................................................................................................................1第 1 章 系統(tǒng)功能說明 ..........................................................................................................1第 2 章 設計方案論證 ..........................................................................................................2 系統(tǒng)所選的控制芯片 ..............................................................................................2 聲音的實現(xiàn)方案論證和比較 ..................................................................................2 非接觸式的彈奏方案論證和比較 ..........................................................................3 時鐘源的方案論證和比較 ......................................................................................3 時鐘顯示的方案論證和比較 ..................................................................................4第 3 章 系統(tǒng)組成及設備造型 ..............................................................................................5 應用系統(tǒng)結(jié)構(gòu)設計 ..................................................................................................5 控制面板設計 ..........................................................................................................5 設備造型 ..................................................................................................................6第 4 章 硬件總體說明 ..........................................................................................................8 硬件設計總體說明 ..................................................................................................8 硬件各模塊主要元器件說明 ..................................................................................9第 5 章 軟件設計流程圖 ....................................................................................................22 主程序流程圖 ........................................................................................................22 時鐘部分流程圖 ....................................................................................................25 時鐘部分時鐘芯片操作程圖 ................................................................................25第 6 章 實際測試結(jié)果 ........................................................................................................26 測試設備 ................................................................................................................26 上位機使用說明 ....................................................................................................26 測試結(jié)果 ................................................................................................................27第 7 章 結(jié)論 ........................................................................................................................28第 8 章 參考文獻 ................................................................................................................29第 9 章 附錄(