C55/C55i AT COMMAND SET Description Preliminary - Falcom

C55/C55I AT COMMAND SET VERSION 1.00
15.1.1 Summary of AT commands available in Alarm mode
at+cala Set alarm time.
at+cclk
Set date and time of RTC.
at^sbc In alarm mode, you can query the present current
consumption.
at^sctm Query temperature of GSM engine.
at^smso Power down GSM engine.
Table 17.1: List of AT commands available in alarm mode AT command
function
15.2 AT+CCLK Real Time Clock
Syntax
Test Command
Response(s)
AT+CCLK=? OK
Read Command
Response(s)
AT+CCLK?
+CCLK:
OK
Write Command
Response(s)
AT+CCLK=
+CME ERROR:
ERROR
OK
Reference(s) PIN ASC0
GSM 07.05 ○ ●
Parameter Description
(str)
Format is "yy/mm/dd,hh:mm:ss", where the characters indicate the two
last digits of the year, followed by month, day, hour, minutes, seconds;
for example 6 May 2004, 22:10:00 hours equals to
"04/05/06,22:10:00" Factory default is "02/01/01,00:00:00"
Notes
• is retained if the device enters the Power Down mode via
AT^SMSO.
• will be reset to its factory default if power is totally
disconnected. In this case, the clock starts with =
"02/01/01,00:00:00" upon next power-up.
• Each time C55 is restarted it takes 2 s to re-initialize the RTC and
to update the current time. Therefore, it is recommended to wait 2 s
before using the commands AT+CCLK and AT+CALA (for example
2 s after ^ SYSSTART has been output)..
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