中英文翻譯資料-- tc35i模塊介紹

1、<p>　　1 The TC35i mold piece introduction</p><p>　　Currently, domestic already beginning usage of the GSM mold piece have a lot, and these of function, method of using difference not big.What this desig

2、n adoption is a Siemens TC35 the TC35i of the series.On this kind of wireless mold piece function and TC35 and permit, design tightly packed, consumedly contracted the physical volume of customer's product.The TC35i

3、and GSM2/2 and permit,dual-band(GSM900/GSM1800), RS232 the data connect, should mold piece and radio frequency electric circuit and J</p><p>　　2 Usely AT introduction</p><p>　　The follow is usel

4、ly the At. </p><p>　　3 The PDU code rule</p><p>　　Send out short news in common use Text and PDU(Protocol Data Unit, agreement data unit) mode currently.The usage Text mode receive and dispatch

5、a message code simple, realization get up very easy, but the biggest weakness be to can't receive and dispatch Chinese message;But PDU mode not only support Chinese message, also the ability send out English message.

6、The PDU mode receive and dispatch a message can the usage be 3 kinds of to code:7-bit, 8-bit and UCS2 code.7-the bit code to used for send o</p><p>　　A:The address length of the message center, 216 enter to

7、make number(one word stanza)</p><p>　　B:The number type of the message center, 216 enter to make number. </p><p>　　C:Message center number, B+C length will from the data decision in the A. </

8、p><p>　　D:Document head word stanza, 216 enter to make number. </p><p>　　E:Information type, 216 enter to make number. </p><p>　　F:Drive call number length, 216 enter to make number. &

9、lt;/p><p>　　G:Drive call number type, 216 enter to make number, take value together B. </p><p>　　H:Drive call number, length from data within F decision. </p><p>　　I:Agreement marking,

10、 216 enter to make number. </p><p>　　J:The data code a project, 216 enter to make number. </p><p>　　K:Term of validity, 216 enter to make number. </p><p>　　L:Customer data length, 2

11、16 enter to make number. </p><p><b>　　Usely AT</b></p><p>　　M:Customer's data, its length from the data decision in the L.Enactment in J adoption UCS2 code, here is the Unicode c

12、haracter list of Chinese-English. </p><p>　　4 RS-232 Interface</p><p>　　RS-232 is one of the normally used interfaces at any time, it not only built in every PC-set, but also built in any types

13、of computers which are from microcontroller to host computers, and equipment connected with them. The general usage of RS-232 is to connect a modern, the other arrangements with RS-232 interfaces include printer, data co

14、llection module, testing device and control loop. RS-232 can be also used in the simple link of any type of computer.</p><p>　　RS-232 is designed to deal with the communication between two arrangements with

15、distance limitation from 50 to 100ft, which depend on Potter rate and type of electric cable. Because of wide application of RS-232 port, its other usage is to link another type of adapter converted form the port.</p&

16、gt;<p>　　For example, a simple loop changes a RS-232 into a RS-485 port. The port can be link with several devices by means of a long lead. Non-equilibrium lead is used to linked to RS-232. Although non-equilibriu

17、m should something avoidable, it only refers to the electric property of the signal in lead. In a non-equilibrium lead, signal voltage is applied to another lead, all has another technical term “signal end”.</p>&

18、lt;p>　　Advantages in RS-232</p><p>　　RS-232 is used everywhere. Every PC-set has one or more RS-232 ports. The renewed computers sustain other serial interfaces like USB. But RS-232 can do many things whi

19、ch USB can’t do.</p><p>　　In the micro-controller interface chip can be easily used to change into RS-232.</p><p>　　The jointing distance can reach 50-100ft. Many external interfaces are not use

20、d for too long distance. The longest distance joint of USB can reach 16ft. The distance between parallel printer interface on the PC-set and the host computer can reach 10 to 15ft, or 30ft by using Type TEEE-1284B driver

21、. But RS-232 can use the longer electric cable.</p><p>　　If every RS-232 port is linked with a modern, Telephone network can used to send data in the rage of the world.</p><p>　　For a double lin

22、k, 3 leads are needed. A parallel circuit generally needs 8 data lines, two or more control signal lines and ground wires。It is more expensive if more leads and bigger connectors are used.</p><p>　　Disadvant

23、ages in RS-232</p><p>　　If one side of link needs parallel data, it has to transform serial into parallel data. But if it is easily realized a UART is used.</p><p>　　Because of the serial port s

24、o useful, it is maybe harder to look for a free serial port PC-set may have many serial ports, but a system maybe can’t distribute a sole breaking enquiring signal to every serial port. Most micro-controller only has one

25、 hardware serial port.</p><p>　　No more than 2 set in one link.</p><p>　　The biggest designated transmitting rate of data is 2000bits/s.But many interface chip can surpass this numerical value,

26、especially in the short distance link.</p><p>　　A longer link needs a different interface.</p><p>　　basic signals of the double RS-232 communication as follows:</p><p>　　TD. Transfo

27、rm data DTE to DCE It’s also called TX and TXD.</p><p>　　RD. Transform data DCE to DTE It’s also called RX and RXD.</p><p>　　SG. Signal land. It’s also called GND and SGND.</p><p>&

28、lt;b>　　Voltage</b></p><p>　　Logic0 is a positive RS-232 voltage, the logic electric level of RS-232 is indicated with positive-negative, and not only use the positive voltage signal of the 5VTTL and

29、 CMOS logic to indicate. In the data logger(TD)of RS-232，a logic0 is defined equal to or higher than +5V, and a Logic1 defined equal to -5V or lower than -5V. In another word, signal use the negative logic, in this logic

30、, the negative voltage is Logic1.</p><p>　　Control signal uses the same voltage, but it uses positive logic. A positive voltage indicates this function is on and a negative voltage indicates this function is

31、 off.</p><p>　　RS-232 interface chip transform these signals in reverse. In output pin of one UART, A logic1 datum or a off control signal is close to 5V, it produces negative voltage on the interface of RS-

32、232.A logic0 datum or an on-control signal is close to 0V, it produces a positive voltage on the interface of RS-232.Because of the RS-232 receptor maybe at the end of a long electrical cable, when the signal reaches the

33、 receiver, it’s voltage is probably weaker or with the noise signal. In consideration of</p><p>　　An input higher than +3V on the RD are a Logic0, or on a control input is open. An input lower than -3V on th

34、e RD are a Logic1, or on a control input is off. According to this standard, input logic electrical level between -3V and +3V have no definition</p><p>　　Noise tolerable limitation or voltage tolerable limit

35、ation is difference output voltage and input voltage. The big voltage undulation from RS-232 lead to a noise tolerable limitation wider than logic5TTL. For example, even thought a output from RS-232 driver is the smalles

36、t +5V,it’s also be weaken in the receiver or the noise peak rise to 2V, and still is a effective Logic0.Many outputs from RS-232 have the wider voltage undulation : ±9V and ±12V are very common affairs. All the

37、se affairs can le</p><p>　　The other two technical terms concern with RS-232 to be used is Mark and Space. Space is Logic0 and Mark is Logic1. These two technical terms which was used by the machine recordin

38、g instrument to record binary data in many years ago, each of them are representation physical and blank.</p><p>　　1、 TC35i模塊介紹 </p><p>　　目前，國內(nèi)已經(jīng)開始使用的GSM模塊有很多，而且這些模塊的功能、用法差別不大。本設計采用的是西門子TC35系列的T

39、C35i 。這種無線模塊功能上與TC35兼容，設計緊湊，大大縮小了用戶產(chǎn)品的體積。TC35i與GSM2/2兼容、雙頻（GSM900/GSM1800）、RS232數(shù)據(jù)接口，該模塊及射頻電路和基帶與一體，向用戶提供標準的AT命令接口，為數(shù)據(jù)、語音、短消息和傳真提供快速、可靠、安全的傳輸，方便用戶的應用開發(fā)及設計。</p><p><b>　　2、常用AT指令</b></p><

40、;p>　　如下表所示為常用At指令：</p><p><b>　　常用AT指令 </b></p><p>　　3、 PDU編碼規(guī)則</p><p>　　目前，發(fā)送短消息常用Text和PDU(Protocol Data Unit，協(xié)議數(shù)據(jù)單元)模式。使用Text模式收發(fā)短信代碼簡單，實現(xiàn)起來十分容易，但最大的缺點是不能收發(fā)中文短信；而PD

41、U模式不僅支持中文短信，也能發(fā)送英文短信。PDU模式收發(fā)短信可以使用3種編碼：7-bit、8-bit和UCS2編碼。7-bit編碼用于發(fā)送普通的ASCII字符，8-bit編碼通常用于發(fā)送數(shù)據(jù)消息， UCS2編碼用于發(fā)送Unicode字符。一般的PDU編碼由ABCDEFGHIJKLM十三項組成。 </p><p>　　A：短信息中心地址長度，2位十六進制數(shù)（1字節(jié)） </p><p>　　B

42、：短信息中心號碼類型，2位十六進制數(shù)。 </p><p>　　C：短信息中心號碼，B+C的長度將由A中的數(shù)據(jù)決定。 </p><p>　　D：文件頭字節(jié)，2位十六進制數(shù)。 </p><p>　　E：信息類型，2位十六進制數(shù)。 </p><p>　　F：被叫號碼長度，2位十六進制數(shù)。 </p><p>　　G：被叫號碼類

43、型，2位十六進制數(shù)，取值同B。 </p><p>　　H：被叫號碼，長度由F中的數(shù)據(jù)決定。 </p><p>　　I：協(xié)議標識，2位十六進制數(shù)。 </p><p>　　J：數(shù)據(jù)編碼方案，2位十六進制數(shù)。 </p><p>　　K：有效期，2位十六進制數(shù)。 </p><p>　　L：用戶數(shù)據(jù)長度，2位十六進制數(shù)。 <

44、;/p><p>　　M：用戶數(shù)據(jù)，其長度由L中的數(shù)據(jù)決定。J中設定采用UCS2編碼，這里是中英文的Unicode字符。 </p><p>　　4 RS-232串行接口</p><p>　　RS-232是在任何時候都常用的接口之一。它不僅已經(jīng)被內(nèi)置于每臺PC，而且已被內(nèi)置于從微控制器到主機的多種類型的電腦和與它們連接的設備。RS-232的最通常得用處是連接到一個Modem

45、，其他擁有RS-232接口的設備包括打印機，數(shù)據(jù)采集模塊，測試裝置和控制回路。你也可以將RS-232用在任何類型得計算機之間的簡單連接中。</p><p>　　RS-232是設計來處理兩臺設備之間的通信的，距離限制為50到100f，這決定于波特率和電纜類型。因為RS-232端口被廣泛應用，它的另一個用途是與一個將這個接口轉(zhuǎn)換成另一種類型的適配器相連。例如，一個簡單的回路將一個RS-232端口轉(zhuǎn)換成一個RS-485

46、端口，這個端口可以和多臺設備相連并且可以使用更長的導線連線。</p><p>　　RS-232連接使用非平衡導線。盡管一個非平衡的狀態(tài)聽起來像是一些應該避免的東西，在這里它僅僅是指導線中的信號的電氣特性。在一條非平衡導線中，信號電壓加到一條導線上，所有的信號電壓都使用一個公共的接地線。這種類型的接口的另一個術語是單端。</p><p><b>　　特性</b><

47、/p><p>　　RS---232有幾個優(yōu)點：</p><p>　　它是無處不在的。每一臺PC機都有一個或更多的RS---232端口。更新的計算機現(xiàn)在支持其他諸如USB這樣的串行接口，但是RS---232可以做很多USB無法做的事情。</p><p>　　在微控制器中，接口芯片使得將一個5V串口轉(zhuǎn)換成RS-232變得很容易。</p><p>　　

48、連接距離可以達到50到100ft。大多數(shù)的外設接口都不會用于太長的距離。USB連接最長可以達到16ft，PC機的并口打印機接口與主機的距離可以達到10到15ft，或者利用IEEE-1284B型驅(qū)動器可以達到30ft。但是RS-232可以使用更長的電纜。如果每一個RS-232端口與一個Modem相連，你可以使用電話網(wǎng)在世界范圍內(nèi)發(fā)送數(shù)據(jù)。</p><p>　　對于一個雙向連接，你只需要3條導線。一個并行連接一般需要

49、8條數(shù)據(jù)線，兩條或者更多的控制信號線，和幾條接地線。所有的導線和更大的連接器使得價格累計起來就比較高了。</p><p>　　RS-232的缺點包括以下這些：</p><p>　　如果連接的另一頭需要并行數(shù)據(jù)，它不得不將這個串口數(shù)據(jù)轉(zhuǎn)換成并行數(shù)據(jù)。但是利用一個UART，這很容易實現(xiàn)。</p><p>　　串口是如此的有用，以至于尋找一個未用的串口可能會比較困難。PC

50、機可以有多個串口，但是一個系統(tǒng)可能無法為每一個串口分配一個唯一的中斷請求信號。大多數(shù)的微控制器只有一個硬件串口。</p><p>　　在一個連接中不能有超過2臺以上的設備。</p><p>　　指定的最大數(shù)據(jù)傳輸速率是每秒20000位。但是，很多接口芯片可以超過這個數(shù)值，尤其是在短程連接上。</p><p>　　很長的連接需要一個不同的接口。</p>

51、<p>　　雙向RS-232通信的3個基本信號如下：</p><p>　　TD：將數(shù)據(jù)從DCE傳輸?shù)紻CE也被稱作TX和TXD。</p><p>　　RD：將數(shù)據(jù)從DCE傳輸?shù)紻TE。也被稱作RX和RXD。</p><p>　　SG：信號地。也被稱作GND和SGND。</p><p><b>　　電壓</b>&

52、lt;/p><p>　　RS-232的邏輯電平用正負電壓表示，而不是只用5V TTL和CMOS邏輯的正電壓信號表示。在一個RS-232的數(shù)據(jù)輸出（TD），一個邏輯0被定義為等于或者高于+5V，而一個邏輯1被定義為等于-5V或者比低于-5V。換言之，信號使用負邏輯，在這種邏輯中，負的電壓為邏輯1。</p><p>　　控制信號使用相同的電壓，但是使用的是正邏輯。一個正的電壓表示這項功能為開，而一

53、個負的電壓表示這個功能為關。</p><p>　　RS-232接口芯片反向轉(zhuǎn)換這些信號。在一個UART的輸出引腳，一個邏輯1 數(shù)據(jù)位或者一個關控制信號接近于5V，它在RS-232的接口產(chǎn)生一個負電壓。一個邏輯0數(shù)據(jù)位或者一個開控制信號接近于0V，它在RS-232接口產(chǎn)生一個正電壓。</p><p>　　因為一個RS-232接收器可能位于一條長電線纜的末端，等到信號到達接收者的時候，它的電壓

54、可能已經(jīng)削弱了或者加載了噪聲信號。考慮到這種情況，在接受方最低要求的電壓要比在驅(qū)動器處要低。一個比+3V高得多的輸入在RD處是一個邏輯0，或者在一個控制輸入處是一個開。一個比-3V要低得多的輸入在RD處為一個邏輯1，或者在一個控制輸入處為一個關。根據(jù)這個標準，在-3V和+3V之間的一個輸入的邏輯電平?jīng)]有定義。</p><p>　　噪聲容限，或者電壓容限，是輸出電壓和輸入電壓的區(qū)別所在。RS-232的大電壓波動導致

55、一個比5V TTL邏輯寬得多的噪聲容限。例如，即便一個RS-232驅(qū)動器的輸出為最小的+5V，它也會在接受方削弱或者噪聲峰值大到2V，并且仍舊是一個有效邏輯0。很多RS-232輸出有更寬的電壓波動：±9V和 12V是很平常的事情。這些都導致更寬的噪聲容限。最大允許的電壓波動是 15V，盡管接受方必須不受任何損害地處理高達 25V的電壓。</p><p>　　使用的另外兩個與RS-232有關的術語是Mar