Siemens MC55 manual 17.2 AT+CCLK Real Time Clock, At+Cclk=?, At+Cclk?, Error OK

MC55 AT Command Set

17.2 AT+CCLK

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17.2AT+CCLK Real Time Clock

Syntax

Test Command

AT+CCLK=?

Response(s)

OK

Read Command

AT+CCLK?

Response(s)

+CCLK: <time>

OK

Write Command

AT+CCLK=<time>

Response(s)

+CME ERROR: <err>

ERROR OK

PIN ASC0 ASC1 MUX1 MUX2 MUX3

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Reference(s)

GSM 07.07

Parameter Description

<time>(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 6th of May 2004, 22:10:00 hours equals to "04/05/06,22:10:00" Factory default is "02/01/01,00:00:00"

Notes

•<time> is retained if the device enters the Power Down mode via AT^SMSO.

•<time> will be reset to its factory default if power is totally disconnected. In this case, the clock starts with <time>= "02/01/01,00:00:00" upon next power-up.

•Each time MC55 is restarted it takes 2s to re-initialize the RTC and to update the current time. Therefore, it is recommended to wait 2s before using the commands AT+CCLK and AT+CALA (for example 2s after ^SYSSTART has been output).

MC55_ATC_V01.05	Page 429 of 469	2/10/04
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