UM1695 datasheet(19/46 Pages) STMICROELECTRONICS

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UM1695

Command reference

2.21

AT+S.SETTIME: initiate module reference time

The SETTIME command allows to set the reference time used for secure socket

connections. The module reference time must be initialized after each module reset. The

time refers to UTC format and must be expressed as the time in seconds since 1970-Jan-

01.

Note:

Refer to the SSL/TLS Application Note for details

Arguments:

<time_in_sec>: set the reference time in seconds

2.22

AT+S.SOCKD: enable/disable the socket server

The SOCKD command enables the socket server listening on incoming connection on the

"xxx"port. When the port argument is equal to zero, the command is used to turn off the

socket server.

Arguments:

<port>: server listening port (from 1 to 65634, 0 to disable the socket

server)

<protocol> t for TCP, u for UDP protocol. Default is TCP.

Example:

Listening on port 32000 using TCP.

AT+S.SOCKD=32000<CR>

OK<CR><LF>

Listening on port 32000 using UDP

AT+S.SOCKD=32000,u<CR>

OK<CR><LF>

Turn off the socket server

AT+S.SOCKD=0<CR>

OK<CR><LF>

2.23

AT+S.: command mode to data mode

The AT+S. command allows switching from command mode to data mode.

Arguments:

<none>

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