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cuits.The main one: mainly related to mold 60 and the mold 24 counters, dynamic display control circuit, the whole point timekeeping main divider circuits, which are packaged in modules, so that other circuits calls. To constitute a timing counter parts, through the separation of the 1HZ divider pulse timing, called dynamic display circuit display, through the whole point timekeeping circuit control buzzer.Subject II: mainly related counter mold 60 and the mold 24, a display control circuit, four data parator. Mold 60 and the mold 24 to form counter timing and memory circuit, called dynamic display control circuit shows that by four data parator pares the clock and the alarm hour, minute, and followup with the door control buzzer.關(guān)鍵詞: MAX+Plus2軟件 EPF10K10LC844 數(shù)字時(shí)鐘 基本功能電路 鬧鐘電路實(shí)驗(yàn)一題目:Max+Plus2使用練習(xí),完成一個(gè)簡(jiǎn)單門電路的圖形設(shè)計(jì)輸入、編譯、仿真、管腳分配、下載。內(nèi)容:實(shí)驗(yàn)二題目:圖形設(shè)計(jì)輸入38譯碼器內(nèi)容:38譯碼器。實(shí)驗(yàn)三題目:同步十進(jìn)制加法計(jì)數(shù)器內(nèi)容:用74161實(shí)現(xiàn)十進(jìn)制加法計(jì)數(shù)器。實(shí)驗(yàn)四題目:同步六十進(jìn)制計(jì)數(shù)器內(nèi)容:用74160,74161等其他門電路完成。數(shù)字時(shí)鐘一.設(shè)計(jì)說(shuō)明1.功能說(shuō)明:利用MAX+Plus2軟件設(shè)計(jì)一個(gè)數(shù)字鐘,對(duì)設(shè)計(jì)電路進(jìn)行功能仿真,并下載到EPF10K10LC844實(shí)驗(yàn)系統(tǒng)中,可以完成00:00:00到23:59:59的計(jì)時(shí)功能,并在控制電路的作用下具有保持、清零、快速校時(shí)、快速校分、整點(diǎn)報(bào)時(shí)等功能。本電路在原有基礎(chǔ)上進(jìn)行了拓展,具備以下功能:①.能進(jìn)行正常的時(shí)、分、秒計(jì)時(shí)功能;②.整點(diǎn)報(bào)時(shí)功能當(dāng)時(shí)鐘計(jì)到59’59”時(shí)開始報(bào)時(shí),報(bào)時(shí)時(shí)間1秒;③.置零功能,可以將時(shí)鐘小時(shí)、分鐘、秒都置為零; ④. 快速校時(shí),校分功能校定時(shí)其他計(jì)時(shí)電路保持;⑤. 鬧表功能—定時(shí)精確到分,鬧鐘設(shè)計(jì)響一分鐘,可關(guān)閉;2.功能簡(jiǎn)介本電路具有三種不同的工作狀態(tài)(同步工作),可通過(guò)模式鍵進(jìn)行換。a、正常計(jì)時(shí)狀態(tài)(RESET、A都為1):此狀態(tài)下數(shù)碼管顯示當(dāng)前的時(shí)間,K1為校時(shí)開關(guān),K2為校分開關(guān),校分、校時(shí)都是以1HZ的信號(hào)進(jìn)行快速到位的。b、鬧表狀態(tài)(RESET為1,A為0):此狀態(tài)下數(shù)碼管顯示當(dāng)前鬧定的時(shí)間,K3為設(shè)定分時(shí)的開