u-blox ZED-F9P User Manual

u-blox ZED-F9P Interface Description - Manual
Advance Information
5.11.7 UBX-LOG-RETRIEVESTRING (0x21 0x0d)
5.11.7.1 Byte string log entry
Message
UBX-LOG-RETRIEVESTRING
Description
Byte string log entry
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Output
Comment
This message is used to report a byte string log entry
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x21 0x0d 16 + 1*byteCount
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U4 - entryIndex - The index of this log entry
4 U1 - version - The version of this message. Set to 0
5 U1 - reserved1 - Reserved
6 U2 - year - Year (1-65635) of UTC time. Will be zero if time
not known
8 U1 - month - Month (1-12) of UTC time
9 U1 - day - Day (1-31) of UTC time
10 U1 - hour - Hour (0-23) of UTC time
11 U1 - minute - Minute (0-59) of UTC time
12 U1 - second - Second (0-60) of UTC time
13 U1 - reserved2 - Reserved
14 U2 - byteCount - Size of string in bytes
Start of repeated block (byteCount times)
16 + 1*N U1 - bytes - The bytes of the string
End of repeated block
5.11.8 UBX-LOG-RETRIEVE (0x21 0x09)
5.11.8.1 Request log data
Message
UBX-LOG-RETRIEVE
Description
Request log data
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Command
Comment
This message is used to request logged data (log recording must first be disabled, see UBX-
CFG-LOGFILTER).
Log entries are returned in chronological order, using the messages UBX-LOG-
RETRIEVEPOS and UBX-LOG-RETRIEVESTRING. If the odometer was enabled at the
time a position was logged, then message UBX-LOG-RETRIEVEPOSEXTRA will also be
used. The maximum number of entries that can be returned in response to a single UBX-
LOG-RETRIEVE message is 256. If more entries than this are required the message will need
to be sent multiple times with different startNumbers. The retrieve will be stopped if any
UBX-LOG message is received. The speed of transfer can be maximized by using a high
UBX-18010854 - R04 Advance Information Page 99 of 259

u-blox ZED-F9P Specifications

General

GNSS	GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS
Concurrent GNSS	4
RTK	Yes
Velocity Accuracy	0.05 m/s
Time Pulse Accuracy	30 ns
Operating Temperature	-40°C to +85°C
Supply Voltage	2.7 V to 3.6 V
Channels	184
Frequency Bands	L1, L2
Dimensions	22 mm x 17 mm x 2.4 mm
Interfaces	UART, SPI, I2C