【正文】 畢 業(yè) 設(shè) 計 說 明 書數(shù)字電子鐘的設(shè)計與實(shí)現(xiàn)專業(yè) 自動化學(xué)生姓名班級 B 自動化學(xué)號 0指導(dǎo)教師完成日期 203 年 6 月日鹽城工學(xué)院本科生畢業(yè)設(shè)計說明書（2022）畢業(yè)設(shè)計說明書獨(dú)創(chuàng)性聲明本人聲明所呈交的畢業(yè)設(shè)計說明書是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究、設(shè)計工作后獨(dú)立完成的。除了文中特別加以標(biāo)注和致謝的地方外，說明書中不包含其他人己經(jīng)發(fā)表或撰寫過的研究成果。對本文的研究所做貢獻(xiàn)集體和個人，均己在說明書中作了明確的說明并表示謝意。本人完全意識到本聲明的法律后果由本人承擔(dān)。畢業(yè)設(shè)計說明書作者簽名: 日期: 年 月 日指導(dǎo)教師簽名:日期: 年 月 日鹽城工學(xué)院本科生畢業(yè)設(shè)計說明書（2022）數(shù)字電子鐘的設(shè)計與實(shí)現(xiàn)摘 要: 單片機(jī)的誕生是在 20 世紀(jì) 70 年代，因?yàn)樗哂袠O高的性價比，更為重要的是其應(yīng)用領(lǐng)域非常廣泛、而且發(fā)展速度也比較快，所以倍受廣大專業(yè)人士的青睞。相對而言單片機(jī)的體積較小、而且非常輕、開發(fā)比較簡單、價錢便宜、對環(huán)境基本上沒什么過高的要求、更重要的是其具有較好的靈活性和穩(wěn)定性，抗干擾的能力特別強(qiáng)。正因?yàn)閱纹瑱C(jī)綜合了上述所以有點(diǎn)，所以就目前國內(nèi)而言，單片機(jī)已被各行各業(yè)所廣泛應(yīng)用，其比較突出的是在機(jī)電一體化設(shè)備、工業(yè)自動化控制、智能儀器儀表、電力電子、自動檢測、家用電器等方面。在本次畢業(yè)設(shè)計中將通過對它全面的了解，以STC89C51 芯片為主，再加上相關(guān)的實(shí)現(xiàn)電路，簡單的設(shè)計了一個的數(shù)字電子鐘，它是由 直流電源供電，通過數(shù)碼管將時間準(zhǔn)確的顯示出來，通過相關(guān)的按鍵及時對時間進(jìn)行調(diào)整。從而通過本次設(shè)計來提高學(xué)習(xí)、設(shè)計、開發(fā)軟硬件的能力。關(guān)鍵詞：單片機(jī)；STC89C51；電子時鐘；數(shù)碼管鹽城工學(xué)院本科生畢業(yè)設(shè)計說明書（2022）Design and implementation of digital electronic clockAbstract: The SCM was born in the 1970s, because it has a very high price, the more important is its broad range of applications, and the development speed is relatively fast, so much the majority of professionals of all ages. SCM relatively smaller, and very light, development of more simple, cheap, environmentally basically no excessive requirements, and more importantly, it has good flexibility and stability, the ability of antijamming special strong. Because of a bination of the above so a bit microcontroller, so the current domestic purposes, SCM has been widely used by businesses, which are more prominent in mechatronics equipment, industrial automation and control, smart instrumentation, power electronics, automatic detection , household appliances and so on. SCM has many series, and 51 singlechip microcontroller is therefore the most representative one. In this graduation project will be through its prehensive understanding to STC89C51 chipbased, coupled with the associated circuit implementation, the simple design of a digital electronic clock, which is powered by a DC power supply, through the digital the accurate time display, through the relevant key on the time to adjust time. Thus designed to improve through this study, design, development hardware and software capabilities.Keywords: Microcontroller。 STC89C51。 Electronic clock。 Digital pipe鹽城工學(xué)院本科生畢業(yè)設(shè)計說明書（2022）目 錄1 概述.........................................................................................................................................1 課題研究的背景及意義 ...................................................................................................1 課題設(shè)計內(nèi)容 ...................................................................................................................2 課題預(yù)期效果 ...................................................................................................................22 系統(tǒng)的總體方案設(shè)計.............................................................................................................3 設(shè)計原理 ...........................................................................................................................3 具體模塊 ...........................................................................................................................33 系統(tǒng)的硬件設(shè)計與實(shí)現(xiàn).........................................................................................................4 控制模塊 ...........................................................................................................................4 顯示模塊 ...........................................................................................................................6 復(fù)位模塊 ...........................................................................................................................7 按鍵模塊 ...........................................................................................................................7 晶振模塊 ..........................................................................................................................8 鬧鐘模塊 ...........................................................................................................................84 系統(tǒng)軟件程序設(shè)計...............................................................................................................10 程序流程圖 ...................................................................................................................