【正文】 四川師范大學成都學院電子工程學院課程設計報告目 錄 ..................................................................................................................................................................1 方案 ............................................................................................................................................2 計方案 ............................................................................................................................................2 復位電路 ..................................................................................................................................................2 晶振電路 ..................................................................................................................................................3 LED 顯 示電路 ......................................................................................................................................4 按鍵輸入電路 ........................................................................................................................................4 蜂鳴器電路 .............................................................................................................................................5 ............................................................................................................................................6 軟件設計方法 ........................................................................................................................................6 系統(tǒng)軟件設計思想 ..............................................................................................................................6 系統(tǒng)主程序 .............................................................................................................................................7 中斷子程序 .............................................................................................................................................7 定時 器 T0 的中斷程序設計 .....................................................................................................8 定時器 T1 的中斷程序設計 .....................................................................................................8 按鍵掃描子程序 .................................................................................................................................10 調(diào)時、分、秒子程序 ...........................................................................................................................10 調(diào)節(jié)鬧鐘子程序 .................................................................................................................................11 ....................................................................................................................................12 硬盤調(diào)試 ................................................................................................................................................13 系統(tǒng)性能測試與功能說明 ..............................................................................................................13 系統(tǒng)時鐘誤差分析 ..........................................................................................