uart communication protocol

I used 232 of the communication protocols. I forgot to use Google every time I used them. Write an articleArticle, Record key issues of the 232 serial port protocol for later viewing. Test TTL level: 1. The default high level; 2. the start position is low; 3. 8-Bit Data bit,Low front, high behind; 4. The stop bit is high. Test RS232 level: 1.-5v---15v is 1, negative logic; 2. Convert the TTL t

1. Server and multi-client communication1 ImportSocket2 #to create a socket for a TCP socket3SK =Socket.socket ()4 #Bind5Sk.bind (('127.0.0.1', 8080))6 #Monitor7Sk.listen (5)8 #Waiting for connection9 while1:Tenconn, addr =sk.accept () One while1: Amsg_s = input ('>>>') -Conn.send (Msg_s.encode ('Utf-8')) - ifmsg_s = ='Q': the Break -Msg_r = Conn.recv (1024x768). Decode ('Utf-8') - ifMsg_r = ='Q': - Break + Print(Msg_r) - conn.close () + A

*author : Davidlin *date : 2014-12-20pm *email : [email protected] or [email protected] * World : The city of SZ, in China *ver : 000.000.001 *for : Threads for rxtx! *history: editor time do * 1) Linpeng 2014-12-20 created this file! * 2) */ #include Protocol: How to implement one of the simplest communication prot

TR-069 Protocol Complete communication Process The following is the device restart to hang TR069 network management of the Message flow resolution (1) device startup; Based on the configured ACS (auto-Configuration server) address, after establishing a secure HTTP connection, Each connection to the CPE must first issue an inform RPC call request to ACS to report the connection information to ACS. ACS return

(Ansichar);While TRUE does beginIf Count Ch: = Str[count];For i:=0 to ArrCount-1 doIf Ch = Divider[i] ThenGoto Catch_div;Endif (Count > Srclen) THEN BEGINCatch_div:if (Bufcount > 0) THEN BEGINIf Bufcount Buf[bufcount]: = #0;Dest: = string (BUF);Result: = Copy (Str, count+1, Srclen-count);EndBreakEnd ELSE beginif (Count > Srclen) THEN BEGINDest: = ";Result: = Copy (Str, count+2, SrcLen-1);BreakEndEndEnd ELSE beginIf Bufcount Buf[bufcount]: = Ch;INC (Bufcount);EndEndINC (Count);EndExceptDest: = "

content is read (such as the Readline () Command), the cache loads subsequent text streams .) Bufferedreader () isDecorator(Decorator), which receives an original object and returns a decorated object with more complex functions. The benefit of modifier is that it can be used to modify different objects. Here we are modifying the text stream read from the file. Other text streams, such as standard input and network-transmitted streams, can be modified by bufferedreader () to implement cache r

the parameter data queue to the URL referred to by the Action attribute of the submission form. The values correspond to each field in the form one by one and can be seen in the URL. Post uses the http post mechanism to place fields in the form and their content in the HTML header and send them to the URL address referred to by the Action attribute. You cannot see this process.3. For the get method, the server uses request. querystring to obtain the value of the variable. For the POST method, t

/**author:davidlin*date: 2014-12-20pm*email:[emailprotected] or[emailprotected]*world:the cityofSZ,inChina*Ver :000.000.001*for:threads forrxtx!*history:editor timedo NBSP;NBSP;NBSP;NBSP;*NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;1) LinPeng 2014-12-20createdthisfile! *NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;2) */ #include Protocol implementation: How to implement one of the simplest communicati