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TCP Server 통신연습

 

1. TCP Server 설정과정

 

2. TCP Server 명령시퀀스

 

NO Command Response 설명
1 PDP Context 설정   See & Refer to corresponding page
2 AT+CNACT?   Are there enabled PDPs?
AT+CNACT=0,1   Activate 0th PDP Context.
3 AT+CASERVER=0,0,”TCP”,6000  

Create TCP server with 0th PDP on

port 6000 of 0th TCP connection

AT+CASERVER=0,0,”TCP”,6000,1   RX data push to UART autiomatiicaly
       
4 AT+CARECV=1,100   Read 100 byte data
5 AT+CASEND=1,5    
6 AT+CAACK=1    
7 AT+CACLOSE=1   Close the connection with 1th TCP connection.
  AT+CACLOSE=0   Close the connection with 0th TCP connection.
8 AT+CNACT=0,0   Disconnect 0th PDP

 

 

 

 

 

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