User guide

Chapter 17 – TCP APP AT Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 105
TCP/IP Service Option Handling +WIPOPT
Description: The +WIPOPT command is used to read and/or configure different parameters on sockets.
Syntax: Command syntax: AT+WIPOPT=<protocol>,<idx>,<action>,<optnum>[,<optval>]
Command Possible Responses
AT+WIPOPT=2,1,1,0
Note: Display local port number for connection on TCP
socket 1
+WIPOPT: 2,0,56228
OK
Note: Display is +WIPOPT:
<protocol>,<optnum>,<result>
AT+WIPOPT=2,1,1,2
Note: Display peer IP address of the connection on TCP
socket 1
+WIPOPT: 2,2,"192.168.13.34"
OK
AT+WIPOPT=1,2,1,6
Note: Display bytes available to be read on UDP socket 2
+WIPOPT: 1,6,23
OK
AT+WIPOPT=2,2,2,8,32
Note: Set Time to Live for TCP socket 2 to value of 32
OK
AT+WIPOPT? ERROR
Values: <protocol>
1: UDP
2: TCP client
3: TCP server
<idx>
1-8 Socket or session identifier
<action>
1 Read (<optval> not allowed)
2 Write (<optval> required)
<optnum> Option to read or write (see Options and Values listed next)
<optval> Value of option to write (see Options and Values listed next)
Options and Values:
Optnum Value
Format
Description UDP TCP
Client
TCP
Server
0 0-65535 Local port number of the socket R R R
1 0-65535 Port of the peer socket R R -
2 String Address of the peer socket R R -
3 0-1 Specifies whether the socket is bound to a peer
socket or not (see 18.11.5)
default: 1
R R -
4 536-36864 Size in bytes of the local transmit buffer.
default: 10240
- RW RW
5 536-65535 Size in bytes of the local receive buffer.
default: 16384
- RW RW
6 0-65535 Number of bytes that can currently be read on
the socket
R R -
7 0-1 When set to TRUE, TCP packets are sent
immediately, even if the buffer is not full
enough.
When set to FALSE, the packets will be sent
either,
a) by combining several small packets into a
bigger packet
b) when the data is ready to send and the
stack is idle.
default: 0
- RW RW