AirPrime and HL7548 AT Commands Interface Guide Rev10 0

Table Of Contents
4116303 Rev 10.0 August 10, 2017 269
AT Commands Interface Guide
NV Related Commands
HL7518 and HL7548
Reference
Sierra Wireless
Proprietary
Notes
Status of operations for <mode>=0 and <mode>=1 is notified by +NVBU_IND
unsolicited notifications with <status>=0 and <status>=1 respectively on the AT
port that executed the write command.
Execution of the write command with <mode>=1 is followed by a modem reboot
automatically; NVs are restored to their default values on booting.
The number of lines of <log data> ranges from 1 to 2142 lines.
NO SIM card is required for this command.
<mode>=2 is for retrieving log for R&D analysis and not fully documented,
generally:
o USER=0 for operations triggered by the firmware
o USER=1 for manual operations
Example
# automatic backup files generation after FW upgrade, notified by +NVBU_IND
+NVBU_IND: 0,0,"2015/07/22 04:23:33","RHL75xx.2.15.142600.201507220405.x7160_2"
+NVBU_IND: 0,1,"2015/07/22 04:23:33","RHL75xx.2.15.142600.201507220405.x7160_2"
+NVBU_IND: 0,2,"2015/07/22 04:23:33","RHL75xx.2.15.142600.201507220405.x7160_2"
# manual generation of backup files from existing NV partitions
AT+NVBU=0,3
OK
+NVBU_IND: 0,0,"2015/07/22 04:23:39","RHL75xx.2.15.142600.201507220405.x7160_2"
+NVBU_IND: 0,1,"2015/07/22 04:23:39","RHL75xx.2.15.142600.201507220405.x7160_2"
+NVBU_IND: 0,2,"2015/07/22 04:23:39","RHL75xx.2.15.142600.201507220405.x7160_2"
# manual restore of backup files to original NV partitions
AT+NVBU=1,3
OK
+NVBU_IND: 1,0,"2015/07/22 04:23:39","RHL75xx.2.15.142600.201507220405.x7160_2"
+NVBU_IND: 1,1,"2015/07/22 04:23:39","RHL75xx.2.15.142600.201507220405.x7160_2"
+NVBU_IND: 1,2,"2015/07/22 04:23:39","RHL75xx.2.15.142600.201507220405.x7160_2"
<module reboots automatically>
# to retrieve the list of NV related operations done by the Firmware
at+nvbu=2
[2015/07/22 04:02:49] BULO: MDM-RHL75xx.2.15.142600.201507220405.x7160_2
[2015/07/22 04:02:49] BUFL: GENERATE USER=0 FILE=3 LAS=0,0,0
[2015/07/22 04:02:49] BUFM: ENCODE F=0 REF=0 CNT=15/15 41
[2015/07/22 04:02:49] BUFM: ENCODE F=1 REF=0 CNT=16/16 31
[2015/07/22 04:02:49] BUFM: ENCODE F=2 REF=42 CNT=41/41 57
[2015/07/22 04:23:39] BUFL: GENERATE USER=1 FILE=3 LAS=0,0,0
[2015/07/22 04:23:39] BUFM: ENCODE F=0 REF=0 CNT=15/15 41
[2015/07/22 04:23:39] BUFM: ENCODE F=1 REF=0 CNT=16/16 31
[2015/07/22 04:23:39] BUFM: ENCODE F=2 REF=42 CNT=41/41 57
[2015/07/22 04:23:43] BUFL: RESTORE USER=1 FILE=3 LAS=0,0,0
[2015/07/22 04:23:43] BUFM: DECODE-2 F=0 REF=1 CNT=15/15 15,41
[2015/07/22 04:23:43] BUFM: DECODE-2 F=1 REF=1 CNT=16/16 16,31
[2015/07/22 04:23:43] BUFM: DECODE-2 F=2 REF=43 CNT=41/41 41,57
OK