u-blox ZED-F9P Interface Description - Manual
Advance Information
5.18 UBX-UPD (0x09)
Firmware Update Messages: i.e. Memory/Flash erase/write, Reboot, Flash identification, etc..
Messages in the UPD class are used to update the firmware and identify any attached flash device.
5.18.1 UBX-UPD-SOS (0x09 0x14)
5.18.1.1 Poll Backup File Restore Status
Message
UBX-UPD-SOS
Description
Poll Backup File Restore Status
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Poll Request
Comment
Sending this (empty / no-payload) message to the receiver results in the receiver returning a
System Restored from Backup message as defined below.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x09 0x14 0
see below
CK_A CK_B
No payload
5.18.1.2 Create Backup File in Flash
Message
UBX-UPD-SOS
Description
Create Backup File in Flash
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Command
Comment
The host can send this message in order to save part of the BBR memory in a file in flash
file system. The feature is designed in order to emulate the presence of the backup battery
even if it is not present; the host can issue the save on shutdown command before
switching off the device supply. It is recommended to issue a GNSS stop command before,
in order to keep the BBR memory content consistent.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x09 0x14 4
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 - cmd - Command (must be 0)
1 U1[3] - reserved1 - Reserved
UBX-18010854 - R04 Advance Information Page 186 of 259
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