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AT Command Reference Guide for EDGE Wireless ... - wless.ru

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Chapter 18 – Hardware-Related <strong>Command</strong>s<br />

Chapter 18. Hardware-Related<br />

<strong>Command</strong>s<br />

The <strong>AT</strong> <strong>Command</strong>s described in this chapter are related to the Multi-Tech wireless modem’s hardware interface.<br />

18.1 <strong>AT</strong>+CCLK Real Time Clock<br />

Test <strong>Command</strong> Syntax: <strong>AT</strong>+CCLK=<br />

Response:<br />

OK<br />

Read <strong>Command</strong> Syntax: <strong>AT</strong>+CCLK<br />

Response:<br />

+CCLK: <br />

OK<br />

Write <strong>Command</strong> Synatx: <strong>AT</strong>+CCLK=<br />

Response:<br />

+CME ERROR: <br />

ERROR<br />

OK<br />

Parameter Description:<br />

<br />

Format is “yy/mm/dd,hh:mm:ss”, where the characters indicate the two last digits of the year, followed by month,<br />

day, hour, minutes, seconds; <strong>for</strong> example 6 th of July 2005, 22:10:00 hours equals to “05/07/06,22:10:00”<br />

Factory default is “02/01/01,00:00:00”<br />

Notes:<br />

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

• will be reset to its factory default if power is totally disconnected. In this case, the clock starts with<br />

= “02/01/01,00:00:00” upon next power-up.<br />

• Each time the Multi-Tech wireless modem is restarted it takes 2s to re-initialize the RTC and to update the<br />

current time. There<strong>for</strong>e, it is recommended to wait 2s be<strong>for</strong>e using the commands <strong>AT</strong>+CCLK and <strong>AT</strong>+CALA<br />

(<strong>for</strong> example 2s after ^SYSSTART has been output).<br />

Multi-Tech Systems, Inc. <strong>AT</strong> <strong>Command</strong>s <strong>for</strong> <strong>EDGE</strong> Modems (S000371B) 225

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