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基于51單片機的數(shù)字收音機萬年歷的設計(已修改)

2024-11-28 15:39 本頁面
 

【正文】 焦作大學機電工程學院 摘要 1 摘 要 電子科技日新月異,人們對現(xiàn)代電子設備的智能化和微型化及其精度提出了更高的要求,而單片機因其具有穩(wěn)定可靠、 體積小、 價格低廉等特點,成為設計智能化儀器儀表的首選微控制器,因此本次我們沒有選用傳統(tǒng)的專用的時鐘芯片,而是采用了 AT89S52 為控制 芯片,此款單片機可以使用軟件對其進行在線編程,其靈活性和可靠性都相對提高 ,采用 ds1302 為時鐘芯片, ds18b20 為溫度傳感芯片 和 tea5767 的收音機芯片 。 TEA5767 內(nèi)置了主頻高達 75MHZ 的數(shù)字信號處理器,實現(xiàn)384KBPS/48KHZ 的 MD 級高品質(zhì) MP3 音樂文件回放,加上擁有一般 MP3 播放器難以企及的高保真回放線路(信噪比高達 95DB, THD 總諧波失真率〈 %〉同時非常省電 。 單片計算機即單片微型計算機。由 RAM ,ROM,CPU 構成,定時,計數(shù)和多種接口于一體的微控制器。它體積小,成本低,功能強,廣泛應用于智能產(chǎn)業(yè)和工業(yè)自動化上。而 51 系列單片機是各單片機中最為典型和最有代表性的一種。這次課程設計通過對它的學習,應用,從而達到學習、設計、開發(fā)軟、硬的能力。 本設計主要設計了一個基于 AT89S52 單片機的 數(shù)字收音機萬年歷 。并在 液 晶屏( 12864) 顯示相應的 年,月,日,時,分,秒,星期, 溫度 ,電臺頻點,信號強度,及收音機狀態(tài),并結合 LM386 的雙聲道功率放大為我們?nèi)粘I钐峁┟烂畹碾娕_廣播。 關鍵詞 : 單片機 C 語言 萬年歷 TEA5767 溫度測量 LCD 液晶屏 焦作大學機電工程學院 summaey 2 Summary Elect onic technology is changing rapidly, people are intelligent and modern electronic equipment miniaturization and a higher accuracy requirements, and SCM because of its stable and reliable, small size, low price and so has bee the preferred design of intelligent microinstrumentation controller, so this time we do not use a conventional dedicated clock chip, instead of using AT89S52 as the control chip, the microcontroller can use this section of its online programming software, its flexibility and reliability are relatively increased, as the use of ds1302 clock chip, ds18b20 tea5767 for the temperature sensor chip and the radio chip. TEA5767 builtin frequency up to 75MHZ digital signal processor, the MD level to achieve 384KBPS/48KHZ high quality MP3 music file playback, plus MP3 player has a generally difficult to match the highfidelity playback line (SNR up to 95DB, THD Total Harmonic Distortion % also very energyefficient. Singlechip puter that is singlechip microputer. By the RAM, ROM, CPU position, timing, counting and multiple interfaces in one of the microcontroller. Its small size, low cost, powerful, widely used in smart industries and industrial automation. The 51 series of microcontrollers is the most typical and most representative one. The curriculum design through its study, the application to achieve the study, design, development software and hardware capabilities. The design of the main design of a microcontroller AT89S52based digital radio calendar. And the LCD screen (12864) shows the corresponding year, month, day, hour, minute, second, week, temperature, radio frequency, signal strength, and radio status, bined with LM386 dualchannel power amplifier of our daily life provide wonderful radio. Keywords: C language calendar TEA5767 chip LCD screen temperature measurementr 焦作大學機電工程學院 目錄 3 目 錄 第一章 單片機知識簡介 ............................................................................... 1 .......................................................................................... 1 ................................................................................ 1 片機的應用領域 ................................................................................ 1 ................................................................. 2 MCS- 51 單片機中斷系統(tǒng) ......................................................... 2 MCS51 單片 機的定時器 /計數(shù)器 .......................................... 2 1. 5 芯片簡介 ................................................................................................ 4 第二章 DS1302,TEA5767 及液晶知識簡介 ...................................... 6 DS1302 簡介 ............................................................................................ 6 DS1302 引腳功能及結構 ................................................................... 6 DS1302 的使用 ....................................................................................... 6 數(shù)據(jù)傳輸( I/O) ......................................................................... 6 DS1302 的寄存器 .......................................................................... 6 TEA5767 概述 ................................................................................. 7 TEA5767 基本資料 ....................................................................... 7 TEA5767 收音原理 ..................................................................... 7 LCD(12864)簡介 .................................................................................... 8 概述 .................................................................................................. 8 基本特性 ......................................................................................... 9 第三章 總體方案設計 ................................................................................ 10 .................................................................................................. 10 ........................................................................................ 10 .............................................................................. 11 ......................................................................... 12 流程圖 ......................................................................... 12 第四章 系統(tǒng)的硬件組成 ............................................................................. 13 .................................................................... 13 穩(wěn)壓電路 ................................................................................................. 13 功放電源優(yōu)化開關電路 ................................................................... 14 焦作大學機電工程學院 目錄 4 單片機最小系統(tǒng)電路 ........................................................................ 14 按鍵模塊 ................................................................................................. 15 時鐘電路 .................
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