畢業(yè)論文-基于at89s52單片機(jī)控制的模擬汽車轉(zhuǎn)向燈設(shè)計(jì)-免費(fèi)閱讀
【正文】 s most popular dishes are his brainchild. Lin says his secret of success is innovation rooted in experience: He spends months every year traveling and eating worldwide, seeking new ingredients and inspirations that could improve the offerings of Blue Frog restaurants. The restaurant chain regularly launches a new seasonal menu, usually featuring eight new dishes with fresh ingredients. The bestselling seasonal dishes later replace the least popular items on the regular menu, which is usually updated in late fall and boasts a selection of about 40 dishes. Food should have no boundaries, Lin says. As long as the food tastes good and is healthy, it doesn39。t conducive to raising a child. She planned to have children once she had achieved career success so she could provide a stable environment for her baby. After 10 years, Xiao felt the time was right, and she tried to conceive for about six months, but was unable to bee pregnant. I conducted prehensive physical checkups. The results suggested that Xiao39。s digitized society, will also be attached on the report.Myopia is not only a disease that makes people see things blurrily, but also leads to severeplications, such as glaua (increased pressure within the eyeball), and can causeblindness, said Zhou Yuehua, an established eye care specialist with Beijing TongrenHospital.It is very important for parents and children to know about the risk and care for their eyes.There are about 450 million myopia patients in China. Among Chinese myopia patients,30million are severe patients, according to ZhouThe prevalence of myopia among high school and college students is more than 70 percent,and the situation is continuously worsening, he Zhu, director with the China Youth Development Service Center, said long hours ofstudy, lack of exercise, especially outdoor activities, and attachment to electronic screen aresome of the top reasons behind the widespread myopia problems, and the increase ofyounger patients, although China has made great progress in improving the hardwarefacilities and lighting conditions in said he hopes the survey will alert people on the threatening situation, and also helpmedical experts to better guideline parents and children39。主要任務(wù)應(yīng)包括： （ 1） 原理圖的設(shè)計(jì)與仿真。經(jīng)過我們兩周的努力完成了基于單片機(jī)的轉(zhuǎn)向燈控制的課程設(shè)計(jì)。=0 時(shí)進(jìn)入剎車分支 AJMP BRAKE 輸出量的程序節(jié)選 LEFT: MOV P2,0D5H 。如圖 圖 LED 燈電路 5 用到 5個(gè)按鈕作為轉(zhuǎn)向燈的控制開關(guān)，按鈕一端接低電平一端接單片機(jī)的 P1口低 5位。系統(tǒng)電源電路如圖 所示： 圖 電源 4 復(fù)位電路 在振蕩器運(yùn)行時(shí)，有兩個(gè)機(jī)器周期（ 24 個(gè)振蕩周期）以上的高電平出現(xiàn)在此引腳時(shí)，將使單片機(jī)復(fù)位，只要這個(gè)引腳保持高電平， 51 芯片便循環(huán)復(fù)位。用 P2 口作為輸出，連接 7 個(gè) LED 燈作為轉(zhuǎn)向燈的信號(hào)燈。本設(shè)計(jì)是設(shè)計(jì)一個(gè)單片機(jī)控制系統(tǒng)。 程序設(shè)計(jì) .................................................................. 錯(cuò)誤 !未定義書簽。 硬件設(shè)計(jì)方案 .......................................................... 錯(cuò)誤 !未定義書簽。本設(shè)計(jì)是設(shè)計(jì)一個(gè)單片機(jī)控制系統(tǒng)。經(jīng)過單片機(jī)對(duì) P2口輸出低電平點(diǎn)亮共陽極 LED燈。 復(fù)位電路 ................................................................. 錯(cuò)誤 !未定義書簽。 6. 參考文獻(xiàn) ......................................................................... 錯(cuò)誤 !未定義書簽。以上閃爍，都是頻率為 1Hz 的低頻閃爍；在汽車?？慷？块_關(guān)合上時(shí)，左頭燈、右頭燈、左尾燈、右尾燈按頻率為 30Hz 的高頻閃爍。單片機(jī)的生產(chǎn)工藝不同，時(shí)鐘的產(chǎn)生方式也不同，有內(nèi)部和外部?jī)煞N時(shí)鐘產(chǎn)生方式，根據(jù)該設(shè)計(jì)需要，采取內(nèi)部方式。復(fù)位電路通常采用上電自動(dòng)復(fù)位和按鈕復(fù)位兩種方式，此電路系統(tǒng)采用的是上電與按鈕復(fù)位電路。=0 時(shí)進(jìn)入左轉(zhuǎn)分支 AJMP LEFT NEXT1: CJNE A,0FH,NEXT2 。 此次課程設(shè)計(jì)，我們使用的是 AT89S52 的單片機(jī)，它是一種低功耗，高性能的 CMOS8位微控制器，有 40 個(gè)引腳 。在以后的生活中我們應(yīng)該留心這些設(shè)備，多學(xué)習(xí)，多思考才能讓自己更加理解理論知識(shí)，強(qiáng)化理論知識(shí)，才能逐漸提高自己的設(shè)計(jì)能力。 （ 6） 該生在此次課程設(shè)計(jì)中主要任務(wù)是完善電路原理圖的設(shè)計(jì)和實(shí)物正常工作與軟件的調(diào)試與修改。ll wear a mask, or just ignore the smog and go on jogging, she said. For those who are not so athletic, jogging also has its attractions. Wu Houbin started roughly two years ago, when he was severely obese. Within two months, his weight dropped from 82 kilograms to 64 kilograms. The success helped him recover health, and he has made friends. Jogging does not require speed, but stamina. If you want to stick to the game, you need to take it as a mission, a habit, and then eventually a hobby, Wu said. But persevering with jogging is not always easy. Jogging is beneficial for heartlung function, and the skeletal system, but doctors say improper techniq
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