u-blox ZED-F9P User Manual

u-blox ZED-F9P Interface Description - Manual
Advance Information
5.17 UBX-TIM (0x0D)
Timing Messages: i.e. Time Pulse Output, Time Mark Results.
Messages in the TIM class are used to output timing information from the receiver, like Time Pulse and Time
Mark measurements.
5.17.1 UBX-TIM-TM2 (0x0D 0x03)
5.17.1.1 Time mark data
Message
UBX-TIM-TM2
Description
Time mark data
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Periodic/Polled
Comment
This message contains information for high precision time stamping / pulse counting.
The delay figures and timebase given in UBX-CFG-TP5 are also applied to the time results
output in this message.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x0D 0x03 28
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 - ch - Channel (i.e. EXTINT) upon which the pulse was
measured
1 X1 - flags - Bitmask (see graphic below)
2 U2 - count - rising edge counter.
4 U2 - wnR - week number of last rising edge
6 U2 - wnF - week number of last falling edge
8 U4 - towMsR ms tow of rising edge
12 U4 - towSubMsR ns millisecond fraction of tow of rising edge in
nanoseconds
16 U4 - towMsF ms tow of falling edge
20 U4 - towSubMsF ns millisecond fraction of tow of falling edge in
nanoseconds
24 U4 - accEst ns Accuracy estimate
Bitfield flags
This graphic explains the bits of flags
UBX-18010854 - R04 Advance Information Page 182 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