畢業(yè)設(shè)計-單片機

1、摘 要本設(shè)計主要設(shè)計了一個基于 AT89C51 單片機的電子時鐘。并在數(shù)碼管上顯示相應(yīng)的時間。并通過一個控制鍵用來實現(xiàn)時間的調(diào)節(jié)和是否進入省電模式的轉(zhuǎn)換。應(yīng)用 Proteus 的 ISIS 軟件實現(xiàn)了單片機電子時鐘系統(tǒng)的設(shè)計與仿真。該方法仿真效果真實、準(zhǔn)確，節(jié)省了硬件資源。同時單片機以 AT89C51 為核心元件采用 LED 數(shù)碼管顯示器動態(tài)顯示“時” ， “分” ， “秒”的現(xiàn)代計時裝置。與傳統(tǒng)機械表相比，它具有走時精確,顯示直觀等

2、特點。另外具有校時功能，秒表功能，和定時器功能，利用單片機實現(xiàn)的數(shù)字時鐘具有編程靈活，便于功能的擴充等優(yōu)點。關(guān)鍵詞 關(guān)鍵詞：數(shù)字鐘系統(tǒng)； 單片機； LED 液晶顯示器Digital clock system Abstract The system uses MCU with time, the school features such as the digital clock, SCM AT89C51 is also used as t

3、he core components of the LED digital display dynamic display “when“ and “points“ and “seconds“ of the modern time device . Compared with the traditional mechanical watches, it has a precise pa

4、th that intuitive, and other characteristics. In addition a school function, stopwatch function, and the timer function to achieve MCU use of the digital clock with programming flexibility to facilitate the expansion of