Sierra Wireless WISMO218 User Manual download pdf (Page 11)

WA_DEV_W228_UGD_002 Rev 003 Page 11 of 78

WISMO228 TCP/IP AT Commands

Manual

2. Principles

The AT+WIP AT Commands implements the TCP/IP protocols using custom AT commands. The

commands are sent from an external application and the corresponding responses are sent back from

the WISMO

to the external application.

AT+WIP commands involve:

 a host computer, which issues the AT+WIP commands

 

 the rest of the Internet/Intranet

Multiplexing: Several sockets can be operating at once. The +WIPDATA command allows the

temporary identification of the UART in data mode with a given socket. The data written on the

UART is transferred through the socket. The data which arrives on the socket can be read from the

UART.

In AT mode, the host receives an unsolicited event when the data arrives on the socket.

Sockets Identification

Sockets are identified by a pair of numbers: the first one identifies the protocol; the second one

identifies a given socket of the protocol.

AT Commands

GPS/GPRS

Wavecom

WISMO

Host CPU

INTERNET

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Sierra Wireless WISMO218 User Manual Page 11