數(shù)控畢業(yè)設(shè)計(jì)-數(shù)控平臺(tái)設(shè)計(jì)

機(jī)械電子課程設(shè)計(jì)題目：數(shù)控平臺(tái)設(shè)計(jì)班級(jí)：姓名： 學(xué)號(hào)：指導(dǎo)老師：

目錄機(jī)械系統(tǒng)設(shè)計(jì)任務(wù)總體方案導(dǎo)軌的選用絲杠的選用軸承的選用電機(jī)的選型減速器的設(shè)計(jì)電氣系統(tǒng) 設(shè)計(jì)任務(wù) 驅(qū)動(dòng)電路設(shè)計(jì) 控制器的選用 人機(jī)接口 軟件設(shè)計(jì) 文件設(shè)計(jì)參考文獻(xiàn)附錄

機(jī)械系統(tǒng)一、設(shè)計(jì)任務(wù)機(jī)電傳動(dòng)單向數(shù)控平臺(tái)設(shè)計(jì)電機(jī)驅(qū)動(dòng)方式：步進(jìn)電機(jī)、直流伺服電機(jī)、交流伺服電機(jī)；機(jī)械傳動(dòng)方式：螺旋絲杠、滾珠絲杠、同步皮帶、鏈傳動(dòng)等；電氣控制方式：單片微機(jī)控制、PLC控制；功能控制要求：速度控制、位置控制；主要設(shè)計(jì)參數(shù)：單向工作行程——1800、1500、1200mm；移動(dòng)負(fù)載質(zhì)量——100、50kg；負(fù)載移動(dòng)阻力——100、50N；（估算值）移動(dòng)速度控制——0～3、0～6m/min或?qū)崿F(xiàn)行程（位置）控制，控制精度±0.01mm,±0.1mm設(shè)計(jì)選擇為：步進(jìn)電機(jī)、滾珠絲杠、單片機(jī)控制、速度控制，1200mm、100Kg、50N、0~6m/min，控制精度0.01mm。二、總體方案滾動(dòng)導(dǎo)軌的特點(diǎn)在相配的兩導(dǎo)軌之間，放置滾珠、滾柱或滾針等滾動(dòng)體，使導(dǎo)軌運(yùn)動(dòng)為滾動(dòng)摩擦，就成滾動(dòng)導(dǎo)軌。滾動(dòng)導(dǎo)軌的優(yōu)點(diǎn)：摩擦系數(shù)小，動(dòng)、靜摩擦系數(shù)差別小，低速運(yùn)動(dòng)時(shí)不易出現(xiàn)“爬行”現(xiàn)象；運(yùn)動(dòng)靈敏輕便，所需功率??；移動(dòng)精度和定位精度高；鋼制淬硬導(dǎo)軌具有極高的耐磨性，精度保持性好；對(duì)溫度變化的敏惑性較低；潤滑簡單，維修方便；高速運(yùn)動(dòng)時(shí)不會(huì)像滑動(dòng)導(dǎo)軌那樣因動(dòng)壓效應(yīng)而使動(dòng)導(dǎo)軌浮起。滾珠絲桿是將回轉(zhuǎn)運(yùn)動(dòng)轉(zhuǎn)化為直線運(yùn)動(dòng)，或?qū)⒅本€運(yùn)動(dòng)轉(zhuǎn)化為回轉(zhuǎn)運(yùn)動(dòng)的理想的產(chǎn)品。滾珠絲桿由螺桿、螺母和滾珠組成。它的功能是將旋轉(zhuǎn)運(yùn)動(dòng)轉(zhuǎn)化成直線運(yùn)動(dòng)，這是滾珠螺絲的進(jìn)一步延伸和發(fā)展，這項(xiàng)發(fā)展的重要意義就是將軸承從滾動(dòng)動(dòng)作變成滑動(dòng)動(dòng)作。由于具有很小的摩擦阻力，滾珠絲杠被廣泛應(yīng)用于各種工業(yè)設(shè)備和精密儀器。步進(jìn)電機(jī)是將電脈沖信號(hào)轉(zhuǎn)變?yōu)榻俏灰苹蚓€位移的開環(huán)控制元步進(jìn)電機(jī)件。在非超載的情況下，電機(jī)的轉(zhuǎn)速、停止的位置只取決于脈沖信號(hào)的頻率和脈沖數(shù)，而不受負(fù)載變化的影響，當(dāng)步進(jìn)驅(qū)動(dòng)器接收到一個(gè)脈沖信號(hào)，它就驅(qū)動(dòng)步進(jìn)電機(jī)按設(shè)定的方向轉(zhuǎn)動(dòng)一個(gè)固定的角度，稱為“步距角”，它的旋轉(zhuǎn)是以固定的角度一步一步運(yùn)行的?？梢酝ㄟ^控制脈沖個(gè)數(shù)來控制角位移量，從而達(dá)到準(zhǔn)確定位的目的；同時(shí)可以通過控制脈沖頻率來控制電機(jī)轉(zhuǎn)動(dòng)的速度和加速度，從而達(dá)到調(diào)速的目的。機(jī)械傳動(dòng)系統(tǒng)的方案初選為滾動(dòng)導(dǎo)軌、滾珠絲桿、步進(jìn)電機(jī)。三、滾動(dòng)導(dǎo)軌滾動(dòng)導(dǎo)軌的特點(diǎn)摩擦系數(shù)小（0.003~0.005）動(dòng)、靜摩擦系數(shù)基本相同，因而啟動(dòng)阻力小，且不易發(fā)生爬行可以預(yù)緊，剛度高；壽命長；精度高，定位精度可達(dá)0.1~0.2μm，重復(fù)精度可達(dá)0.2μm由專業(yè)廠生產(chǎn)，可以外購選用；抗振和抗沖擊能力差，對(duì)灰塵屑末較敏感。對(duì)滾動(dòng)導(dǎo)軌的基本要求導(dǎo)向精度導(dǎo)向精度是指移動(dòng)部件沿導(dǎo)軌運(yùn)動(dòng)時(shí)，在空載與負(fù)載情況下，都應(yīng)保證移動(dòng)軌的直線性及位置的精確性。各種機(jī)床對(duì)導(dǎo)軌副本身的平面度、垂直度及等高、等距都胡標(biāo)準(zhǔn)規(guī)定。耐磨性導(dǎo)軌副應(yīng)在預(yù)定使用期限內(nèi)，保持其導(dǎo)向精度，因此導(dǎo)軌副應(yīng)具有足夠的耐磨性。剛度導(dǎo)軌副應(yīng)有較高的剛度。因此應(yīng)選用合適的導(dǎo)軌類型、尺寸及其組合。選用可調(diào)整間隙和預(yù)緊的導(dǎo)軌副可以提高剛度。工藝性導(dǎo)軌副要便于裝配、調(diào)整、測量、防塵、潤滑和維修保養(yǎng)。滾動(dòng)導(dǎo)軌的分類 滾動(dòng)導(dǎo)軌分為滾動(dòng)體循環(huán)和滾動(dòng)體不循環(huán)兩種。其中滾動(dòng)體不循環(huán)分為滾珠導(dǎo)軌副、滾釷導(dǎo)軌副、圓柱滾子導(dǎo)軌副，滾動(dòng)體循環(huán)分為直線滾動(dòng)導(dǎo)軌副、滾子導(dǎo)軌塊滾動(dòng)花鍵副、直線運(yùn)動(dòng)球軸承及其支承、滾動(dòng)導(dǎo)軌塊。直線滾動(dòng)導(dǎo)軌副 上圖a,b所示直線導(dǎo)軌副滾動(dòng)導(dǎo)軌副，是由一根長導(dǎo)軌軸和滑塊組成，滑塊數(shù)根據(jù)需要確定，滑塊內(nèi)有四組滾珠，滾珠1與2，3與4，5與6，7與8各為一組，其中負(fù)載滾珠為2、3、6、7，回珠為1、4、5、8。隨著滑塊（或?qū)к壿S）的移動(dòng)，滾珠就周而復(fù)始進(jìn)行滾動(dòng)。滾珠的承載方式與角接觸球軸承相似，一只滑塊相當(dāng)于4個(gè)直線運(yùn)動(dòng)的角接觸軸承。導(dǎo)軌副的安裝位置可以水平安裝，也可以垂直或傾斜安裝；可以兩根或多根導(dǎo)軌并列平行安裝，也可以兩根或多根短導(dǎo)軌軸串連接長成長導(dǎo)軌軸。直線滾動(dòng)導(dǎo)軌副的選擇根據(jù)長度需求暫選直線滾動(dòng)導(dǎo)軌副GGA40參數(shù)如下dBBBBWMMtHAT408560604022.5M10M5×1012753215KLLLHld×D×hGFCC601056022.544.522.59×14×12M8×110517.8kN19.5kN直線運(yùn)動(dòng)滾動(dòng)支承的摩擦力計(jì)算計(jì)算項(xiàng)目計(jì)算過程計(jì)算結(jié)果負(fù)荷PP=mg=100×10=1000N1000N摩擦力FF式中：μ——摩動(dòng)摩擦系數(shù)，μ=0.003~0.005； P——法向載荷(N)； f——密封阻力(N)，每個(gè)滑座取f=5(N)； 當(dāng)P/C0a>0.1時(shí)，μ=0.003~0.005；當(dāng)0.05<P/C0a<0.1時(shí)，取μ=0.0130N四、滾珠絲杠滾珠絲杠副的特點(diǎn)傳動(dòng)效率高，滾珠絲杠的傳動(dòng)效率高達(dá)95%~98%。運(yùn)動(dòng)平穩(wěn)滾珠絲杠副在工作過程中摩擦阻力小，靈敏度高，而且摩擦系數(shù)幾乎與運(yùn)動(dòng)速度無關(guān)，啟動(dòng)摩擦力矩與運(yùn)動(dòng)時(shí)的摩擦力矩的差別很小。所以滾珠絲杠副運(yùn)動(dòng)幾乎與運(yùn)動(dòng)速度無關(guān)，啟動(dòng)摩擦力矩與運(yùn)動(dòng)時(shí)的摩擦力的差別很小。所以滾珠絲杠副運(yùn)動(dòng)平穩(wěn)，啟動(dòng)時(shí)無顫動(dòng)，低速時(shí)無爬行。傳動(dòng)可逆性與滑動(dòng)絲杠副相比，滾動(dòng)絲杠副突出的特點(diǎn)是具有運(yùn)動(dòng)的可逆性。可以預(yù)緊通過對(duì)螺母施加預(yù)緊力能消除滾珠絲杠副的間隙，提高軸向接觸剛度，但摩擦力矩卻增加不大。定位精度和重復(fù)定位精度高由于滾珠絲杠副具有傳動(dòng)效率高、運(yùn)動(dòng)平穩(wěn)、可以預(yù)緊等特點(diǎn)，所以滾珠絲杠副在工作過程中溫升較小，無爬行。并可以消除軸向間隙和對(duì)絲杠進(jìn)行預(yù)拉伸以補(bǔ)償熱膨脹，能獲得較高的定位精度和重復(fù)定位精度。同步性好用幾套相同的滾珠絲杠副同時(shí)驅(qū)動(dòng)相同的部件或裝置時(shí)，由于反應(yīng)靈敏，無阻滯，無滑移，其啟動(dòng)的同時(shí)性、運(yùn)行中的速度和位移等，都具有準(zhǔn)確的一致性，這就是所謂同步性好。使用壽命長滾珠絲杠和螺母的材料均為合金鋼，螺紋滾道經(jīng)過熱處理，并淬硬到HRC58~62，經(jīng)磨削達(dá)到所需的精度和表面粗糙度。實(shí)踐證明，滾珠絲杠副的使用壽命比普通滑動(dòng)絲杠副高5~6倍。使用可靠，潤滑簡單，維修方便與液壓傳動(dòng)相比，滾動(dòng)絲杠副在正常使用條件下故障率低，維修保養(yǎng)也極為方便；通常只需進(jìn)行一般的潤滑與防塵。在特殊使用場合，如核反應(yīng)堆中的滾珠絲杠副，可在無潤滑狀態(tài)下正常工作。滾珠絲杠副的分類 滾珠絲杠副的類型可以從螺紋滾道的截面形狀、滾珠的循環(huán)方式和消除軸向間隙的調(diào)整方法進(jìn)行區(qū)別。從滾道型面分為單圓弧形和雙圓弧形。從滾珠的循環(huán)方式分為內(nèi)循環(huán)和外循環(huán)。滾珠絲杠副的選型計(jì)算項(xiàng)目計(jì)算過程計(jì)算結(jié)果當(dāng)量負(fù)荷F30N當(dāng)量轉(zhuǎn)速n500r/min絲杠導(dǎo)程P10mm動(dòng)負(fù)荷C壽命系數(shù)壽命轉(zhuǎn)速系數(shù)其中綜合系數(shù)f溫度系數(shù)溫度125150175200225250300f0.950.900.850.800.750.700.6硬度系數(shù)硬度585552.55047.54540f1.01.111.351.561.922.43.85精度系數(shù)精度1、2、34、5710f1.00.90.80.7負(fù)荷性質(zhì)系數(shù)負(fù)荷性質(zhì)無沖擊平穩(wěn)運(yùn)轉(zhuǎn)一般運(yùn)轉(zhuǎn)有沖擊和振動(dòng)運(yùn)動(dòng)f1~1.21.2~1.51.5~2.5可靠性系數(shù)可靠度（%）909596979899f1.00.620.530.440.330.21700.980N絲杠選型選用FFZD3210型內(nèi)循環(huán)浮動(dòng)返向器雙螺母墊片預(yù)緊滾動(dòng)滾動(dòng)絲杠副，型號(hào)FFZD3210，額定動(dòng)負(fù)荷Ca=32kNdPDddDDDBC32107.14430≤245390711532kNDDhDMTELLC915942M6668015070kN符合要求絲杠螺紋部分長度l=1200+150+2×40=14301430支承距離支承距離l應(yīng)大于l1800臨界轉(zhuǎn)速校核n絲杠底徑d長度計(jì)算L支撐方式系數(shù)f合格壓桿穩(wěn)定校核兩端固定支承，絲杠不受壓縮，因而不必校核穩(wěn)定性預(yù)拉力FE鋼鐵彈模量11×溫升伸長量δ3476N軸承選擇采用E型和F型軸端，軸承號(hào)為7602020TVP，d=20mm,D=47mm,B=14mm,Z=15,Dw=5.593mm,Ca=19600N,F0=2300N軸承的最大軸向載荷為F由于F0合格軸承壽命校核C=合格絲杠在載荷下彈性位移δ=絲杠與螺母接觸變形δFFZD32滾珠絲杠的接觸剛度K軸承的接觸變形δK=23.6×絲杠總位移量δ=五、步進(jìn)電動(dòng)機(jī)步進(jìn)電機(jī)的特點(diǎn)步進(jìn)電機(jī)是一種將電脈沖信號(hào)轉(zhuǎn)換成機(jī)械角位移（或線位移）的執(zhí)行元件。只要控制輸入脈沖的數(shù)量、頻率和電動(dòng)機(jī)繞組的通電順序，便可獲得所需的轉(zhuǎn)角、速度以及轉(zhuǎn)動(dòng)方向，而不受負(fù)載變化的影響，所以很容易用微機(jī)控制。當(dāng)無脈沖輸入時(shí)，在繞組電流的激勵(lì)下，步進(jìn)電動(dòng)機(jī)可以鎖相。步距值不受各種干擾因素（如電壓的波動(dòng)、電流的數(shù)值和波形、溫度的變化等）的影響，只要在它們的大小未引起步進(jìn)電動(dòng)機(jī)產(chǎn)生“丟步”現(xiàn)象之前，就不影響其正常工作。步進(jìn)電動(dòng)機(jī)的步距角有誤差，轉(zhuǎn)子轉(zhuǎn)過一定的步數(shù)，也會(huì)有一定的累積誤差，但是每轉(zhuǎn)一圈的累積誤差為零，所以步距誤差不長期積累?？刂菩阅芎?，轉(zhuǎn)子轉(zhuǎn)動(dòng)慣量小、動(dòng)態(tài)響應(yīng)快、易于啟停、正反轉(zhuǎn)和變速控制。低速時(shí)轉(zhuǎn)矩大、速度控制比較簡單、外形尺寸小，所以廣泛應(yīng)用于打印機(jī)、繪圖機(jī)、復(fù)印機(jī)等機(jī)電一體化產(chǎn)品及各類機(jī)床、切割機(jī)、輕工、包裝、醫(yī)療器械、機(jī)器人等自動(dòng)控制設(shè)備中。步進(jìn)電動(dòng)機(jī)的類型 步進(jìn)電動(dòng)機(jī)按其工作原理可分為反應(yīng)式（VR）、永磁式（PM）和混合式（HB）三種主要類型，其相數(shù)有二相、三相、四相、五相、六相、等多種選擇。計(jì)算項(xiàng)目計(jì)算過程計(jì)算結(jié)果脈沖當(dāng)量δ=0.010.01步距角θ=0.36絲杠轉(zhuǎn)動(dòng)慣量絲杠的轉(zhuǎn)動(dòng)慣量J=絲杠的質(zhì)量m=ρV=0.001723×7.58×絲杠的體積V=π絲杠的密度ρ=7.58×0.001085kg平臺(tái)的慣量折算J聯(lián)軸器的轉(zhuǎn)動(dòng)慣量聯(lián)軸器的類型暫選為凸緣聯(lián)軸器YL1，質(zhì)量0.94kg，轉(zhuǎn)動(dòng)慣量0.00180.0018kg折算到電機(jī)軸上的負(fù)載轉(zhuǎn)動(dòng)慣量J0.003138kg折算到電機(jī)軸上的負(fù)載轉(zhuǎn)矩T電動(dòng)機(jī)的加速轉(zhuǎn)矩TJMta電機(jī)上的最大負(fù)載轉(zhuǎn)矩T電機(jī)的選擇取安全系數(shù)K=2，則必需轉(zhuǎn)矩：T初選電機(jī)型號(hào)為90BYG550B-0301轉(zhuǎn)動(dòng)慣量J則有TTM電機(jī)頻率驗(yàn)算f=從圖上可以看出，此速度時(shí)的電動(dòng)機(jī)的輸出最大轉(zhuǎn)矩大于T合格

控制系統(tǒng)數(shù)控平臺(tái)數(shù)控平臺(tái)限位開關(guān)單片限位開關(guān)單片機(jī)屏幕輸出鍵盤輸入步進(jìn)電機(jī)放大電路步進(jìn)電機(jī)放大電路二、單片機(jī)控制器單片機(jī)是一種集成電路芯片，是采用超大規(guī)模集成電路技術(shù)把具有數(shù)據(jù)處理能力的中央處理器CPU隨機(jī)存儲(chǔ)器RAM、只讀存儲(chǔ)器ROM、多種I/O口和中斷系統(tǒng)、定時(shí)器/計(jì)時(shí)器等功能（可能還包括顯示驅(qū)動(dòng)電路、脈寬調(diào)制電路、模擬多路轉(zhuǎn)換器、A/D轉(zhuǎn)換器等電路）集成到一塊硅片上構(gòu)成的一個(gè)小而完善的微型計(jì)算機(jī)系統(tǒng)，在工業(yè)控制領(lǐng)域的廣泛應(yīng)用。從上世紀(jì)80年代，由當(dāng)時(shí)的4位、8位單片機(jī)，發(fā)展到現(xiàn)在的32位300M的高速單片機(jī)單片機(jī)分類 單片機(jī)作為計(jì)算機(jī)發(fā)展的一個(gè)重要分支領(lǐng)域，根據(jù)目前發(fā)展情況，從不同角度單片機(jī)大致可以分為通用型/專用型、總線型/非總線型及工控型/家電型。（1）通用型/專用型這是按單片機(jī)適用范圍來區(qū)分的。例如，80C51是通用型單片機(jī)，它不是為某種專用途設(shè)計(jì)的；專用型單片機(jī)是針對(duì)一類產(chǎn)品甚至某一個(gè)產(chǎn)品設(shè)計(jì)生產(chǎn)的，例如為了滿足電子體溫計(jì)的要求，在片內(nèi)集成ADC接口等功能的溫度測量控制電路。（2）總線型/非總線型這是按單片機(jī)是否提供并行總線來區(qū)分的。總線型單片機(jī)普遍設(shè)置有并行地址總線、數(shù)據(jù)總線、控制總線，這些引腳用以擴(kuò)展并行外圍器件都可通過串行口與單片機(jī)連接，另外，許多單片機(jī)已把所需要的外圍器件及外設(shè)接口集成一片內(nèi)，因此在許多情況下可以不要并行擴(kuò)展總線，大大減省封裝成本和芯片體積，這類單片機(jī)稱為非總線型單片機(jī)。（3）控制型/家電型這是按照單片機(jī)大致應(yīng)用的領(lǐng)域進(jìn)行區(qū)分的。一般而言，工控型尋址范圍大，運(yùn)算能力強(qiáng)；用于家電的單片機(jī)多為專用型，通常是小封裝、低價(jià)格，外圍器件和外設(shè)接口集成度高。顯然，上述分類并不是惟一的和嚴(yán)格的。例如，80C51類單片機(jī)既是通用型又是總線型，還可以作工控用。單片機(jī)的選擇89C51是一種帶4K字節(jié)閃爍可編程可擦除只讀存儲(chǔ)器（FPEROM—FalshProgrammableandErasableReadOnlyMemory）的低電壓、高性能CMOS8位微處理器，俗稱單片機(jī)。單片機(jī)的可擦除只讀存儲(chǔ)器可以反復(fù)擦除100次。該器件采用ATMEL高密度非易失存儲(chǔ)器制造技術(shù)制造，與工業(yè)標(biāo)準(zhǔn)的MCS-51指令集和輸出管腳相兼容。由于將多功能8位CPU和閃爍存儲(chǔ)器組合在單個(gè)芯片中，ATMEL的89C51是一種高效微控制器，89C2051是它的一種精簡版本。89C單片機(jī)為很多嵌入式控制系統(tǒng)提供了一種靈活性高且價(jià)廉的方案。三、人機(jī)接口的設(shè)計(jì)本次電氣設(shè)計(jì)中，根據(jù)對(duì)平臺(tái)速度控制的設(shè)計(jì)，分為五個(gè)速度檔，速度依次為1m/min，2m/min，3m/min，4m/min，5m/min分別由五個(gè)按鍵構(gòu)成，同時(shí)由一個(gè)七段譯碼管組成，一個(gè)輸入端與一個(gè)輸出端，構(gòu)成一個(gè)簡單的人機(jī)接口。四、程序設(shè)計(jì)開始開始外部中斷初始化外部中斷初始化電機(jī)是否處于啟動(dòng)狀態(tài)電機(jī)是否處于啟動(dòng)狀態(tài)定時(shí)器是否處于終值定時(shí)器是否處于終值顯示屏幕清零顯示屏幕清零屏幕顯示當(dāng)前速度定時(shí)器開啟定時(shí)器屏幕顯示當(dāng)前速度定時(shí)器開啟定時(shí)器設(shè)終值終止終止參考文獻(xiàn)（1）《現(xiàn)代機(jī)械設(shè)計(jì)手冊(cè)第5卷》，化學(xué)工業(yè)出版社，秦大同、謝里陽主編（2）《機(jī)械設(shè)計(jì)課程上機(jī)與設(shè)計(jì)》，東南大學(xué)出版社，程志紅、唐大放主編（3）《單片機(jī)原理與應(yīng)用及C51程序設(shè)計(jì)》第2版，清華大學(xué)出版社，謝維成、楊加國主編（4）《單片機(jī)原理及接口技術(shù)》第3版，北京航空航天大學(xué)出版社，李朝青主編（5）《畫法幾何及機(jī)械制圖》，中國礦業(yè)大學(xué)出版社，李愛軍、陳國平主編（6）《AutoCAD2008使用教程》機(jī)械工業(yè)出版社，孫海波、姚新港附錄/*--------------------------------------------------------------------------REG51.HHeaderfileforgeneric80C51and80C31microcontroller.Copyright(c)1988-2002KeilElektronikGmbHandKeilSoftware,Inc.Allrightsreserved.--------------------------------------------------------------------------*/#ifndef__REG51_H__#define__REG51_H__/*BYTERegister*/sfrP0=0x80;sfrP1=0x90;sfrP2=0xA0;sfrP3=0xB0;sfrPSW=0xD0;sfrACC=0xE0;sfrB=0xF0;sfrSP=0x81;sfrDPL=0x82;sfrDPH=0x83;sfrPCON=0x87;sfrTCON=0x88;sfrTMOD=0x89;sfrTL0=0x8A;sfrTL1=0x8B;sfrTH0=0x8C;sfrTH1=0x8D;sfrIE=0xA8;sfrIP=0xB8;sfrSCON=0x98;sfrSBUF=0x99;/*BITRegister*//*PSW*/sbitCY=0xD7;sbitAC=0xD6;sbitF0=0xD5;sbitRS1=0xD4;sbitRS0=0xD3;sbitOV=0xD2;sbitP=0xD0;/*TCON*/sbitTF1=0x8F;sbitTR1=0x8E;sbitTF0=0x8D;sbitTR0=0x8C;sbitIE1=0x8B;sbitIT1=0x8A;sbitIE0=0x89;sbitIT0=0x88;/*IE*/sbitEA=0xAF;sbitES=0xAC;sbitET1=0xAB;sbitEX1=0xAA;sbitET0=0xA9;sbitEX0=0xA8;/*IP*/sbitPS=0xBC;sbitPT1=0xBB;sbitPX1=0xBA;sbitPT0=0xB9;sbitPX0=0xB8;/*P3*/sbitRD=0xB7;sbitWR=0xB6;sbitT1=0xB5;sbitT0=0xB4;sbitINT1=0xB3;sbitINT0=0xB2;sbitTXD=0xB1;sbitRXD=0xB0;/*SCON*/sbitSM0=0x9F;sbitSM1=0x9E;sbitSM2=0x9D;sbitREN=0x9C;sbitTB8=0x9B;sbitRB8=0x9A;sbitTI=0x99;sbitRI=0x98;#endif#include<reg51.h>sbitP0_0=P0^0;sbitP0_1=P0^1;sbitP0_2=P0^2;sbitP0_3=P0^3;sbitP0_4=P0^4;sbitP0_5=P0^5;sbitP0_6=P0^6;sbitP0_7=P0^7;sbitP1_0=P1^0;sbitP1_1=P1^1;sbitP1_2=P1^2;sbitP1_3=P1^3;sbitP1_4=P1^4;sbitP1_5=P1^5;sbitP1_6=P1^6;sbitP1_7=P1^7;sbitP2_0=P2^0;sbitP2_1=P2^1;sbitP2_2=P2^2;sbitP2_3=P2^3;sbitP2_4=P2^4;sbitP2_5=P2^5;sbitP2_6=P2^6;sbitP2_7=P2^7;sbitP3_0=P3^0;sbitP3_1=P3^1;sbitP3_2=P3^2;sbitP3_3=P3^3;sbitP3_4=P3^4;sbitP3_5=P3^5;sbitP3_6=P3^6;sbitP3_7=P3^7;unsignedcharidatastep=0;unsignedcharidatacount=0;unsignedcharidataspeed=0;intnow=0;intend=0;unsignedcharcodelevel[1202]={0XFF,0XFF,0XFF,0XFE,0XFF,0XFD,0XFF,0XFC,0XFF,0XFB,0XFF,0XFA,0XFF,0XF9,0XFF,0XF8,0XFF,0XF7,0XFF,0XF6,0XFF,0XF5,0XFF,0XF4,0XFF,0XF3,0XFF,0XF2,0XFF,0XF1,0XFF,0XF0,0XFF,0XEF,0XFF,0XEE,0XFF,0XED,0XFF,0XEC,0XFF,0XEB,0XFF,0XEA,0XFF,0XE9,0XFF,0XE8,0XFF,0XE7,0XFF,0XE6,0XFF,0XE5,0XFF,0XE4,0XFF,0XE3,0XFF,0XE2,0XFF,0XE1,0XFF,0XE0,0XFF,0XDF,0XFF,0XDE,0XFF,0XDD,0XFF,0XDC,0XFF,0XDB,0XFF,0XDA,0XFF,0XD9,0XFF,0XD8,0XFF,0XD7,0XFF,0XD6,0XFF,0XD5,0XFF,0XD4,0XFF,0XD3,0XFF,0XD2,0XFF,0XD1,0XFF,0XD0,0XFF,0XCF,0XFF,0XCE,0XFF,0XCD,0XFF,0XCC,0XFF,0XCB,0XFF,0XCA,0XFF,0XC9,0XFF,0XC8,0XFF,0XC7,0XFF,0XC6,0XFF,0XC5,0XFF,0XC4,0XFF,0XC3,0XFF,0XC2,0XFF,0XC1,0XFF,0XC0,0XFF,0XBF,0XFF,0XBE,0XFF,0XBD,0XFF,0XBC,0XFF,0XBB,0XFF,0XBA,0XFF,0XB9,0XFF,0XB8,0XFF,0XB7,0XFF,0XB6,0XFF,0XB5,0XFF,0XB4,0XFF,0XB3,0XFF,0XB2,0XFF,0XB1,0XFF,0XB0,0XFF,0XAF,0XFF,0XAE,0XFF,0XAD,0XFF,0XAC,0XFF,0XAB,0XFF,0XAA,0XFF,0XA9,0XFF,0XA8,0XFF,0XA7,0XFF,0XA6,0XFF,0XA5,0XFF,0XA4,0XFF,0XA3,0XFF,0XA2,0XFF,0XA1,0XFF,0XA0,0XFF,0X9F,0XFF,0X9E,0XFF,0X9D,0XFF,0X9C,0XFF,0X9B,0XFF,0X9A,0XFF,0X99,0XFF,0X98,0XFF,0X97,0XFF,0X96,0XFF,0X95,0XFF,0X94,0XFF,0X93,0XFF,0X92,0XFF,0X91,0XFF,0X90,0XFF,0X8F,0XFF,0X8E,0XFF,0X8D,0XFF,0X8C,0XFF,0X8B,0XFF,0X8A,0XFF,0X89,0XFF,0X88,0XFF,0X87,0XFF,0X86,0XFF,0X85,0XFF,0X84,0XFF,0X83,0XFF,0X82,0XFF,0X81,0XFF,0X80,0XFF,0X7F,0XFF,0X7E,0XFF,0X7D,0XFF,0X7C,0XFF,0X7B,0XFF,0X7A,0XFF,0X79,0XFF,0X78,0XFF,0X77,0XFF,0X76,0XFF,0X75,0XFF,0X74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