Table 5-2: System Commands (Detail) (Continued)
Command
AT+GNSSRTC
AT+GNSSBRATE
Rev 3.1 Jul.20
Description
Get CPU time and the elapsed time since system startup
Usage:
•
Read:
AT+GNSSRTC?
Response:
+GNSSRTC,<rtc_time>,OK
or
+GNSSRTC,<error code>
Parameters:
<rtc_time> (RTC Time)
•
Unit: microsecond
•
Format: hex
Example:
•
Read the elapsed time since system startup:
AT+GNSSRTC?<CR><LF>
+GNSSRTC,0,OK*78 <CR><LF>
Set the baud rate of communication interface
Note: The module will reboot after the baud rate is set.
Usage:
•
Write:
AT+GNSSBRATE=<baud_rate>
Response:
+GNSSBRATE,<baud_rate>,OK
or
+GNSSBRATE,<error code>
Purpose:
Configure the module's baud rate.
•
AT+GNSSBRATE?
Read:
Response:
+GNSSBRATE,<baud_rate>,OK
or
+GNSSBRATE,<error code>
Purpose:
Get the module's baud rate.
Parameters:
<baud_rate> (Baud Rate)
•
0—115200 (Default)
•
1—460800
Example:
•
Changed baud rate to 115200:
AT+GNSSBRATE=0<CR><LF>
+GNSSBRATE,0,OK*7D<CR><LF>
•
Changed baud rate to 460800:
AT+GNSSBRATE=1<CR><LF>
+GNSSBRATE,1,OK*7C<CR><LF>
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System Commands
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