C55/C55i AT COMMAND SET Description Preliminary - Falcom

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C55/C55I AT COMMAND SET VERSION 1.00 Reminder message: You can use the alarm function to generate reminder messages. For this purpose, set the alarm as described below and do not switch off or power down the ME. When executed the message comes as an Unsolicited Result Code. Alarm mode: You can use the alarm function to restart the ME when powered down. For this purpose, set the alarm as described below. Then power down the ME by entering the at^smso command. When the alarm time is reached, the ME will wake up to Alarm mode. To prevent the ME from unintentionally logging into the GSM network, Alarm mode provides restricted operation. Upon wake-up, the ME indicates an Unsolicited Result Code which reads: ^SYSSTART ALARM MODE. A limited number of AT commands is available during Alarm mode, for details see table "List of AT Commands Available in Alarm Mode". The ME remains deregistered from the GSM network. If you want the ME to return to full operation (normal operating mode) it is necessary to restart the ME by driving the ignition line (IGT pin of application interface) to ground. Parameter Description (str) Format is "yy/MM/dd,hh:mm:ss", where characters indicate year (two last digits), month, day, hour, minutes. E.g. 6th of May 2004, 22:10:00 hours equals to "04/05/06,22:10:00" (see also at+cclk). Note: if equals current date and time or is set to an earlier date, TA returns +CME ERROR: 21. (num) Integer type value indicating the array index of the alarm. The ME allows to set only one alarm at a time. Therefore, the list of supported alarm events indicated by the test command at+cala=? is =0. If a second alarm time is set, the previous alarm will be deleted. Therefore, the read command at+cala? will always return =0. (num) Integer type value indicating the type of the alarm. 0 Alarm indication: text message via serial interface By factory default, is undefined. (str) String type value indicating the text to be displayed when alarm time is reached; maximum length is . Note: will be stored to the non-volatile flash memory when the device enters the Power Down mode via at^smso. Once saved, it will be available upon next power-up, until you overwrite it by typing another text. This eliminates the need to enter the full string when setting a fresh alarm. should not contain characters which are coded differently in ASCII and GSM (e.g. umlauts), see also "Supported character sets" and "GSM alphabet tables". (num) Integer type value indicating the maximum length of . The maximum length is 16. This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission. Page 274
C55/C55I AT COMMAND SET VERSION 1.00 Notes • After the alarm was executed the parameter of at+cala will be reset to "00/01/01,00:00:00", but will be preserved as described above. • If C55 is totally disconnected from power supply the most recently saved configuration of +CALA: [,[,[,]]] will be presented when C55 is powered up. • Each time C55 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). • Alarm settings on ASC0: - On the ASCO interface an individual message can be stored. Therefore, the total number of alarm events returned by the read command at+cala? will always be =0, no matter whether different text messages are stored. - When the alarm is timed out and executed, the ME sends the URC only on the interface where the most recent alarm setting was made. The alarm time will be reset to "00/01/01,00:00:00" on all interfaces. Examples: EXAMPLE 1 You may want to configure a reminder call for May 31, 2004, at 9.30 h, including the message "Good Morning". AT+CALA="04/05/31,09:30:00",0,0,"Good Morning" OK Do not switch off the GSM engine. When the alarm is executed the ME returns the following URC: +CALA: Good Morning EXAMPLE 2 To set a fresh alarm using the same message as in Example 1, simply enter date and time. , , , can be omitted: AT+CALA="04/05/31,08:50:00" OK When the alarm is executed the URC comes with the same message: +CALA: Good Morning EXAMPLE 3 To configure the alarm mode, e.g. for May 20, 2004, at 8.30 h, enter AT+CALA="04/05/2 0,08:30:00" OK Next, power down the ME: AT^SMSO ^SMSO: MS OFF When the alarm is executed the ME wakes up to Alarm mode and displays a URC. If available, this line is followed by the individual most recently saved. If no individual message was saved only the first line appears. ^SYSSTART ALARM MODE +CALA: Good Morning This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission. Page 275
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C55/C55i AT COMMAND SET Description Preliminary - Falcom

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