【正文】
電路電路以及串口下載電路等組成。顯示器使用液晶 LCD1602。程序采用匯編語言編寫。 關(guān)鍵詞 時鐘電鐘, DS1302,液晶 LCD1602,單片機(jī) Abstract: Electronic calendar is a very extensive daily timing tool for modern society is more and more popular. It can be to year, month, day, Sunday, when, minutes, and seconds for the time, also has a leap year pensation and other functions, and the DS1302 long service life and small error. For digital electronic calendar using intuitive digital display, can also shows that year, month, day, Sunday, when the information such as, minutes and seconds, still have time calibration etc. Function. The AT89C52 single chip microputer as circuit adopts core, power consumption is small, can be in 3 V of lowpressure work, voltage can choose 3 to 5 V voltage power supply. The design process of the calendar in the hardware and software design of synchronization. Mainly by AT89C52 single chip microputer hardware part, liquid crystal display circuit, reset circuit, clocking circuit on the circuit circuit and serial download circuit etc. The processor on the choice of the single chip microputer AT89C52 use, the single chip microputer suitable for many more plex control applications. Use of liquid crystal display LCD1602. Software is mainly including calendar program, liquid crystal driver, show program, etc. Program using assembly language. All programming, after the pletion of Keil C51 software in missioning, make sure no, after Proteus software embedded in within the single chip microputer simulation. Key words DianZhong clock, DS1302, liquid crystal LCD1602, microcontroller 3 目 錄 1 設(shè)計要求與方案論證 ............................................................................................................................................................. 4 設(shè)計要求 ............................................................................................................................................................................ 4 系統(tǒng)基本方案選擇和論證 ............................................................................................................................................... 4 .............................................................................................................................. 4 : .............................................................................................................................. 5 電路設(shè)計最終方案決定 ................................................................................................................................................... 5 2 系統(tǒng)的硬件設(shè)計與實現(xiàn) ......................................................................................................................................................... 5 電路設(shè)計框圖 .........................................................................................................................................