基于單片機(jī)的可調(diào)時(shí)數(shù)字鬧鈴畢業(yè)設(shè)計(jì)_說明

1、. . . . / 29摘 要隨著社會(huì)的發(fā)展、科技的進(jìn)步，各種方便于生活的電子產(chǎn)品開始進(jìn)入了人們的生活，電子時(shí)鐘就是其中之一。他已經(jīng)成為了人們?nèi)粘Ｉ钪械谋匦杵?，廣泛用于家庭、車站、碼頭、劇院、辦公室等場(chǎng)所，給人們的生活、學(xué)校、工作、娛樂帶來了極大的方便。本設(shè)計(jì)采用 STC89C52 為微處理器，通過 LCD1602 液晶顯示

2、當(dāng)前日期、時(shí)間。系統(tǒng)還具有對(duì)日期、星期、時(shí)間與鬧鈴的設(shè)置功能。經(jīng)測(cè)試，本設(shè)計(jì)能實(shí)現(xiàn)基本的數(shù)字時(shí)鐘功能。具有外圍電路簡(jiǎn)單、成本低、易操作的特點(diǎn)。考慮到成本，計(jì)時(shí)與數(shù)據(jù)處理均由單片機(jī)處理。關(guān)鍵詞：51 單片機(jī)；數(shù)字時(shí)鐘；LCD1602；可調(diào)時(shí)鬧鈴Abstract Abstract：With the development of society, the progress of science and technology, all kind

3、s of convenience in life of electronic products began to enter into people's life, electronic clock is one of them.It has become the people daily life’s necessities, widely used in family, station, wharf, theatres, o

4、ffices and other places, to people's lives, school, work, entertainment brought great convenience.This design uses microprocessor STC89C52, through the LCD1602 liquid crystal display the current date and time. The s

5、ystem also has the function setting date, week, time and alarm.According to the test, this design can achieve the basic digital clock function. With peripheral circuit is simple, low cost, easy to operate features.

6、Considering the cost, time and data processing were determined by single chip microcomputer processing.Key Key words: words:51 SCM; Digital clock; LCD1602;Time Adjustable alarm . . . .

7、 2 / 29目 錄引言 ……………………………………… …………………………………………… ………………………………… ……………………………11 設(shè)計(jì)思路與流程 ……………………………………………………… ………………………………………………………11.1 功能分析 …………………………………………………………………………… ……………………………………………………………………………

8、 11.2 系統(tǒng)模塊圖………………………………………………………………………… …………………………………………………………………………12 硬件電路 ……………………………………………………………… ………………………………………………………………22.1 主要器件 …………………………………………………………………………… ……………………………………………………………………………22.1.1 STC89C5 單片機(jī)………………

9、………………………………………………… …………………………………………………………………22.1.2 LCD1602 液晶…………………………………………………………………… ……………………………………………………………………33 電路原理圖 …………………………………………………………… ……………………………………………………………53.1 單片機(jī)電路…………………………………………………………………………… …………………

10、…………………………………………………………53.2 電源指示電路……………………………………………………………………… ………………………………………………………………………53.3 按鍵電路…………………………………………………………………………… ……………………………………………………………………………63.4 鬧鈴電路…………………………………………………………………………… …………………………………………………………………

11、…………63.5 LCD 電路…………………………………………………………………………… ……………………………………………………………………………64 程序設(shè)計(jì) ……………………………………………………………… ………………………………………………………………74.1 程序設(shè)計(jì)容 ……………………………………………………………………… ………………………………………………………………………74.2 C 語(yǔ)言源程序 ……………………