【正文】 date=1 。 SCK=1。 SCK=0。 while (i) { date1=1 。 SCK=1 。 SCK=0 。 } return date1。 SCK=0。 TRX_CE=0。 Delay(2)。 SpiWrite(0x00)。 //CH_NO,配置頻段在 SpiWrite(0x0C)。 //地址寬度設(shè)置，為 4 字節(jié) SpiWrite(0x03)。 //接收發(fā)送有效數(shù)據(jù)長度為 3字節(jié) SpiWrite(0xE7)。SpiWrite(0xE7)。 //接收地址 SpiWrite(0xDE)。 PWR_UP=1。 TX_EN=0。 } void Wait_Rec_Packet(void) { if(DR) { TRX_CE=0。 SpiWrite(0x24)。 TxRxBuffer[1] = SpiRead()。 CSN=1。 第 20 頁（共 23 頁） TRX_CE=1。amp。 TxRxBuffer[1]=0xff。 if(TxRxBuffer[2]==0xa0) { led1=~led1。 } else if(TxRxBuffer[2]==0xa2) { led3=~led3。 } } } void main(void) { Ini_System()。 DR=1。 led2=0。 success_flag=0。 Delay(1000)。 TRX_CE=1。 while(1) { Wait_Rec_Packet()。 TRX_CE=1。 Delay(5000)。 success_flag=0。 } } } 4 結(jié)束語 本文著重介紹了無線數(shù)據(jù)傳輸系統(tǒng)的基本原理及無線數(shù)據(jù)傳輸?shù)木幋a解碼設(shè)計。本設(shè)計非常簡便可靠地實現(xiàn)了單片機編碼、發(fā)送、接收、解碼的任務(wù)，完成了無線數(shù)據(jù)傳輸?shù)墓δ?，取得了良好的效果，?yīng)用前景廣闊。當發(fā)射器的類型不同時只需對中斷處理程序的部分參數(shù)稍加改動即可 ,就可以適用于多種紅外遙控器信號的接收和解碼 ,極大地節(jié)約了硬件實現(xiàn)的資源開銷。本文所用的方法可以舉一反三，對不同類型的發(fā)射器的基本思路和方法是相同的，只需要根據(jù)具體波形修改其參數(shù)和表達式即可，能靈活應(yīng)用。程序如果改為匯編語言編 寫占用空間會比使用 C語言編寫更小 ,完全可應(yīng)用于各類第 22 頁（共 23 頁） 單片機。經(jīng)實驗測試 ,上述無線數(shù)據(jù)傳輸?shù)男盘柕陌l(fā)送和接收方法沒有出現(xiàn)傳輸誤碼 ,可靠實用 ,在編碼解碼方面降低了硬件成本。若在數(shù)據(jù)傳輸協(xié)議中 ,加上地址幀 (設(shè)備號識別 ) 和校驗幀 ,該方法在計算機系統(tǒng)中將有更廣泛的應(yīng)用。s society, People urgently hope exchange information anytime, anywhere without constraints of time. A variety of intelligent control system is also inseparable from the transmission of the data wireless data transmission is new transmission,and its different from the traditional wired transmission, the system does not require transmission cable and it cheap, simple be construction. Now, there are a lot of electrical products (such as domestic appliances) control are also using wireless data transmission,some electrical products function with wireless data transmission relatively simple, wireless data transmission signal receiving recognition are often used coding modulation matching decode electrical products with more of plex functions wireless data transmission, which wireless data transmission signal recognition and decoding with MCU, and its also use a variety of coding modulation. This project describes a wireless data transmission program base on AT89S51 MCU and nRF905 modules, and identification programming method MCU for reference. Keywords:AT89S51 Micro Controller Unit, nRF905 module, Wireless data transmission。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。s antiracism taskforce, is in London for the Football Association39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport. For me it39。s 21 win. Michel Platini, president of European football39。s actions. CSKA said they were surprised and disappointed by Toure39。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭 的年齡已經(jīng)到了尾聲?？傆X得自己自己似乎應(yīng)該去做點什么，或者寫點什么。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。t really grow up, it seems is not so important。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。 Originally, this world, can produce a chemical reaction to an event, in addition to resolutely, have to do, and time. 原來，這個世界上，對某個事件能產(chǎn)生化學反應(yīng)的，除了非做不可的堅決，還有，時間。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個人的時候，自己的想法總是特別地清晰。也曾經(jīng)好像已經(jīng)下定了決心去做某件事，但更多的時候是最后又打起了退堂鼓。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強心劑，或 者說，是自以為是的精神寄托罷了。 Those were broken into various shapes of stationery。 Have declared the end of the encounter that haven39。突然想到那件藍格子襯衫；那些被折成各種各樣形狀的信紙；那段從街角深巷伊始的友誼；還有那場還沒有開始就宣告了終結(jié)的邂逅計劃??那些年那些天的非做不可，終于和青春一樣，都將在我們的人生中謝幕。ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it3