畢業(yè)設(shè)計(jì)-單片機(jī)

1、摘 要本設(shè)計(jì)主要設(shè)計(jì)了一個(gè)基于 AT89C51 單片機(jī)的電子時(shí)鐘。并在數(shù)碼管上顯示相應(yīng)的時(shí)間。并通過(guò)一個(gè)控制鍵用來(lái)實(shí)現(xiàn)時(shí)間的調(diào)節(jié)和是否進(jìn)入省電模式的轉(zhuǎn)換。應(yīng)用 Proteus 的 ISIS 軟件實(shí)現(xiàn)了單片機(jī)電子時(shí)鐘系統(tǒng)的設(shè)計(jì)與仿真。該方法仿真效果真實(shí)、準(zhǔn)確，節(jié)省了硬件資源。同時(shí)單片機(jī)以 AT89C51 為核心元件采用 LED 數(shù)碼管顯示器動(dòng)態(tài)顯示“時(shí)” ， “分” ， “秒”的現(xiàn)代計(jì)時(shí)裝置。與傳統(tǒng)機(jī)械表相比，它具有走時(shí)精確,顯示直觀等

2、特點(diǎn)。另外具有校時(shí)功能，秒表功能，和定時(shí)器功能，利用單片機(jī)實(shí)現(xiàn)的數(shù)字時(shí)鐘具有編程靈活，便于功能的擴(kuò)充等優(yōu)點(diǎn)。關(guān)鍵詞 關(guān)鍵詞：數(shù)字鐘系統(tǒng)； 單片機(jī)； 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