Byte offset, Name, Format – Moog Crossbow NAV440 Series User Manual
Page 69: Scaling, Units, Description, Preamble, Packet type, Length, Payload

N
ser
7
1‐0
Page 69
AV440 U
430‐013
Manual
1 Rev. F
The unit sends this packet after a calibration has been completed. Currently, there is only one message of this type
sent after a magnetic calibration has been completed (with or without automatic termination) and the parameters
ave been calculated. The
h
calibrationRequest field will be 0x000B or 0x000C.
Table 30 CC Payload
CC Payload Contents
Byte
ffset
O
Name
Format
Scaling Units Description
0
calibrationRequest
U2
—
—
The requested calibration task
2
xHardIron
I2
2/2^16 G
The x hard iron bias
4
yHardIron
I2
2/2^16 G
The y hard iron bias
6
softIronScaleRatio
U2
2/2^16 —
The scaling ratio between the x
and y axis
Error Response
Table 31 Error Response
Error Response (ASCII NAK, NAK = 0x1515)
Preamble Packet Type
Length
Payload
Termination
0x5555
0x1515
0x02
<NAK payload>
2)>
<CRC (U
T
c
he unit will send this packet in place of a normal response to a failedInputPacketType request if it could not be
ompleted successfully.
Table 32 NAK Payload
NAK Payload Contents
Byte
ffset
O
Name
Format Scaling Units Description
0
failedInputPacketType
U2
—
—
the failed request
Output Packets (Polled)
The following packet formats are special informational packets which can be requested using the
command.
GP
Identification Data Packet
Table 33 Identification Data Packet
Identification Data (‘ID’ = 0x4944)
Preamble Packet Type
Length
Payload
Termination
0x5555
0x4944
5+N
<ID payload>
<CRC (U2)>