Spatial FOG Reference Manual
Page 138 of 144
Version 2.3
03/05/2018
13.10.8
Odometer Configuration Packet
Odometer Configuration Packet
Packet ID
192
Length
8
Field
#
Bytes
Ofset
Data
Type
Size
Description
1
0
u8
1
Permanent
2
1
u8
1
Automatic pulse measurement active
3
2
u8
2
Reserved (set to zero)
4
4
fp32
4
Pulse length (m)
Table 107: Odometer configuration packet
13.10.9
Set Zero Orientation Alignment Packet
This packet was modified as of firmware version 2.0 for code safety certification.
Previously it was 1 byte long with no verification sequence.
Set Zero Orientation Alignment Packet
Packet ID
193
Length
5
Field
#
Bytes
Ofset
Data
Type
Size
Description
1
0
u8
1
Permanent
2
1
u32
4
Verification sequence (set to 0x9A4E8055)
Table 108: Set zero orientation alignment packet
13.10.10
Reference Point Ofsets Packet
The reference point ofsets packet can be used to adjust the measurement point that
all data is referenced to. By default all the values of this packet are zero and the
measurement point that all data is referenced to is the centre of the Spatial FOG unit.
The primary reference point ofset can be used to adjust the measurement point to a
diferent location on the vehicle. The primary reference point ofset applies to all data
output including NMEA etc as well as heave point 1. The other heave point ofsets
apply only to heave points 2-4 in the Heave Packet.