BGS2T AT Command Set
2.8 AT+CFUN
BGS2T_ATC_V01.301
Page 44 of 554
1/31/12
c
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To check whether power saving is on, you can query the status with the read command
module is in full functionality mode or in CYCLIC SLEEP mode.
•
Recommendation: In NON-CYCLIC SLEEP mode, you can set an RTC alarm to wake up the ME and return
to full functionality. This is a useful approach because, in this mode, the UART is not accessible.
Examples
EXAMPLE 1
To check the level of functionality use the read command:
Remember that the AT interface is not accessible in NON-CYCLIC SLEEP mode. The read command is only
useful when the ME is set to full functionality or CYCLIC SLEEP mode.
EXAMPLE 2
To set the ME to NON-CYCLIC SLEEP mode enter
When, for example, an SMS is being received and indicated by an unsolicited result code (URC), the ME
wakes up to full operation.
After this, you may want to verify the operating status:
EXAMPLE 3
To stop CYCLIC SLEEP mode and return to full functionality:
Remember that this approach is not applicable to the NON-CYCLIC SLEEP mode (since the serial interface
is disabled). The NON-CYCLIC SLEEP mode ends with the first wakeup event.
EXAMPLE 4
To reset and restart the ME:
2.8.1
Wake up the ME from SLEEP mode
A wakeup event is any event that causes the ME to draw more current. Depending on the selected mode, the
wakeup event either switches the SLEEP mode off and takes the ME back to full functionality
activates the ME temporarily without terminating the selected SLEEP mode.
Definitions of the state transitions described in Table
:
AT+CFUN?
+CFUN: 1
Default mode after ME was restarted
AT+CFUN?
+CFUN: 9
CYCLIC SLEEP mode
AT+CFUN=0
OK
+CMTI: "SM",5
Note that the URC used in this example will appear only, if
=1,1 was configured before.
AT+CFUN?
+CFUN: 1
Indicates that ME has entered full functionality mode.
AT+CFUN?
+CFUN: 9
OK
AT+CFUN=1
OK
AT+CFUN=1,1
or alternatively, AT+CFUN=0,1 or 7,1 or 9,1
OK
^SYSSTART
The ^SYSSTART URC confirms that the ME has been rebooted. Note
that ^SYSSTART appears only if
0. Remember to enter the
SIM PIN after restart.
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