Generic AT commands¶

SLM version #XSLMVER
SLM proprietary command list #XCLAC
Power saving #XSLEEP
SLM UART #XSLMUART

The following commands list contains generic AT commands.

SLM version #XSLMVER ¶

The #XSLMVER command requests the SLM version.

Set command ¶

The set command requests the SLM version.

Syntax¶

#XSLMVER

Response syntax¶

#XSLMVERSION: <version>

The <version> value returns a string containing the SLM version.

Example¶

The following command example reads the SLM version:

AT#XSLMVER
#XSLMVER: 1.2
OK

SLM proprietary command list #XCLAC ¶

The #XCLAC command requests the list of the proprietary SLM commands.

Set command ¶

The set command requests the list of the proprietary SLM commands. It is an add-on for AT+CLAC, which lists all modem AT commands.

Syntax¶

#XCLAC

Response syntax¶

<command list>

The <command list> value returns a list of values representing all the #X* commands followed by <CR><LF>.

Example¶

at#xclac
AT#XSLMVER
AT#XSLEEP
AT#XCLAC
AT#XSOCKET
AT#XBIND
AT#XCONNECT
AT#XSEND
AT#XRECV
AT#XSENDTO
AT#XRECVFROM
AT#XPING
AT#XGPS
OK

Power saving #XSLEEP ¶

The #XSLEEP command makes the nRF91 development kit go into idle or sleep mode.

If you are going to do power measurements on the nRF9160 DK while running the SLM application it is recommended to disable unused peripherals. By default UART2 is enabled in the nrf9160dk_nrf9160_ns.overlay file so disable the UART2 by switching the status. Change the line status = "okay" to status = "disabled" and then save the nrf9160dk_nrf9160_ns.overlay` file to make sure you will get the expected power consumption numbers when doing the measurements.

Set command ¶

The set command makes the nRF91 development kit go into either idle or sleep mode, or it powers off the UART device.

Syntax¶

#XSLEEP=<shutdown_mode>

The <shutdown_mode> parameter accepts only the following integer values:

0 - Enter Idle. In this mode, the SLM service is terminated, but the LTE connection is maintained.
1 - Enter Sleep. In this mode, both the SLM service and the LTE connection are terminated.
2 - Power off UART. In this mode, both the SLM service and the LTE connection are maintained.
In case of Idle, it will exit by interface GPIO.
In case of Sleep, it will wake up by interface GPIO.
In case of UART power off, UART will be powered on by interface GPIO or internally by SLM when needed.

Examples¶

AT#XSLEEP=0
OK

AT#XSLEEP=1
OK

AT#XSLEEP=2
OK

Read command ¶

The read command is not supported.

Test command ¶

The test command tests the existence of the AT command and provides information about the type of its subparameters.

Syntax¶

#XSLEEP=?

Response syntax¶

#XSLEEP: <list of shutdown_mode>

Example¶

#XSLEEP: (0,1,2)
OK

SLM UART #XSLMUART ¶

The #XSLMUART command manages the UART settings.

Set command ¶

The set command changes the UART settings.

Syntax¶

#XSLMUART[=<baud_rate>]

The <baud_rate> parameter is an integer. It accepts only the following values:

1200 - 1200 bps
2400 - 2400 bps
4800 - 4800 bps
9600 - 9600 bps
14400 - 14400 bps
19200 - 19200 bps
38400 - 38400 bps
57600 - 57600 bps
115200 - 115200 bps
230400 - 230400 bps
460800 - 460800 bps
921600 - 921600 bps
1000000 - 1000000 bps

The default value is 115200.

Response syntax¶

There is no response.

Example¶

AT#XSLMUART=1000000
OK

Read command ¶

The read command shows the current UART settings.

Syntax¶

AT#XSLMUART?

Response syntax¶

#XSLMUART: <baud_rate>

Example¶

AT#XSLMUART?
#XSLMUART: 115200
OK

Test command ¶

The test command tests the existence of the AT command and provides information about the type of its subparameters.

Syntax¶

#XSLMUART=?

Response syntax¶

#XSLMUART: (list of the available baud rate options)

Example¶

AT#XSLMUART=?
#XSLMUART: (1200,2400,4800,9600,14400,19200,38400,57600,115200,230400,460800,921600,1000000)