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FTPS 통신연습 – Upload Serial Port Input to FTP Server

FTP (File Transfer Protocol) is an application layer protocol.

File Transfer Protocol is a standard protocol for transferring files over a network, using the client/server mode.

 

 

 

1. FTP(S) Characteristics

A control connection is a communication link established between a client protocol interpreter and a server protocol interpreter

for exchanging commands and responses.

 

A data connection is a full-duplex connection for transmitting data.

The transfer of data can occur between DTP for the server data transfer process and DTP for the client,

or between DTP for the two server

 

 

 

 

2. FTP(S) 통신 설정과정

FTP(S) 통신의 가장 단순한 설정과정은 아래 순서도를 참조할 수 있다.

 

 

 

 

 

3. 통신 명령시퀀스 – FTP(S), Upload Serial Port Input to FTP Server

Serial port의 입력을 파일로 FTP(S) 서버로 업로드 하는 예는 다음과 같다..

 

NO Command Response 설명
1 PDP Context 설정    
2 AT+CFTPSSTAR +CFTPSSTART: 0
OK
Activeate PDP context
to start FTP service
3 AT+CFTPSSINGLEIP=1 OK Set data connection
use the same address of control connection
4

AT+CFTPSLOGIN=”nnn.74.nnn.163″,

21,”tmf”,”tmfnnn”,0\r

OK
+CFTPSLOGIN: 0
 
5 AT+CFTPSLIST=”/”   list all items of “/”
6 AT+CFTPSPWD   Get current directory of FTP server
7.1 AT+CFTPSPUT=”momo” > Upload serial port input to FTP server
7.2 >hi, momomomomomomom\1A\r\n   Input data and add \1A\r\n as EOF(CTRL+Z)
8 AT+CFTPSLOGOUT OK
+CFTPSLOGOUT: 0
Logout FTP server
9 AT+CFTPSSTOP +CFTPSSTOP: 0
OK
Stop FTP service

 

 

 

 

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