Generic AT commands

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 baud rate and hardware flow control settings. Hardware flow control settings can be changed only if CONFIG_SLM_UART_HWFC_RUNTIME is selected. These settings are stored in the flash memory and applied during the application startup.

Syntax

The following is the syntax when CONFIG_SLM_UART_HWFC_RUNTIME is selected:

#XSLMUART[=<baud_rate>,<hwfc>]

The following is the syntax when CONFIG_SLM_UART_HWFC_RUNTIME is not selected:

#XSLMUART[=<baud_rate>]

The <baud_rate> parameter is an integer. It accepts 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

Its default value is 115200. When not specified, it is set to the last value set for the variable and stored in the flash memory. If there is no value stored for the variable, it is set to its default value.If not specified , will use previous value.

The <hwfc> parameter accepts the following integer values:

0 - Disable UART hardware flow control.
1 - Enable UART hardware flow control. In this mode, SLM configures both the RTS and the CTS pins according to the device-tree file.

Its default value is 1. When not specified, it is set to the last value set for the variable and stored in the flash memory. If there is no value stored for the variable, it is set to its default value.

Response syntax

There is no response.

Example

AT#XSLMUART=1000000,1
OK

Read command 

The read command shows the current UART settings.

Syntax

AT#XSLMUART?

Response syntax

#XSLMUART: <baud_rate>,<hwfc>

Example

AT#XSLMUART?
#XSLMUART: 115200,1
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

The following is the syntax when CONFIG_SLM_UART_HWFC_RUNTIME is selected:

#XSLMUART: (list of the available baud rate options),(disable or enable hwfc)

The following is the syntax when CONFIG_SLM_UART_HWFC_RUNTIME not selected:

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

Example

The following is an example when CONFIG_SLM_UART_HWFC_RUNTIME is selected:

AT#XSLMUART=?
#XSLMUART: (1200,2400,4800,9600,14400,19200,38400,57600,115200,230400,460800,921600,1000000),(0,1)

The following is an example when CONFIG_SLM_UART_HWFC_RUNTIME is not selected:

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

Device UUID #XUUID 

The #XUUID command requests the device UUID.

Set command 

The set command returns the device UUID.

Syntax

#XUUID

Response syntax

#XUUID: <device-uuid>

The <device-uuid> value returns a string indicating the UUID of the device.

Example

AT#XUUID

#XUUID: 50503041-3633-4261-803d-1e2b8f70111a

OK

Read command 

The read command is not supported.

Test command 

The test command is not supported.