Moog Crossbow NAV440 Series - Manual (Page 67)

NAV440 User Manual
7430‐0131‐01 Rev. F
Page 67
Preamble Packet Type Length Termination
0x5555 0x4152 0x00 <CRC (U2)>
The unit will send this packet in response to an algorithm reset command.
Software Reset Command
Table 22 Software Reset Command
Software Reset (‘SR’ = 0x5352)
Preamble Packet Type Length Payload Termination
0x5555 0x5352 0x00 — <CRC (U2)>
This command performs a core CPU reset, functionally equivalent to a power cycle. All default power‐up field
settings will apply. The unit will respond with software reset response before the system goes down.
Software Reset Response
Table 23 Software Reset
Software Reset (‘SR’ = 0x5352)
Preamble Packet Type Length Termination
0x5555 0x5352 0x00 <CRC (U2)>
The unit will send this packet in response to a software reset command.
Calibrate Command
Table 24 Calibrate Command
Calibrate (‘WC’ = 0x5743)
Preamble Packet Type Length Payload Termination
0x5555 0x5743 0x02 <WC payload> <CRC (U2)>
This command allows the user to perform various calibration tasks with the 440 Series unit. See the calibration
ommand table below for details. The unit will respond immediately with a calibrate response containing the
alibrationRequest
c
c
received or an error response if the command cannot be performed.
Table 25 WC Payload
WC Payload Contents
Byte
ffset O
Name Format Scaling Units Description
0 calibrationRequest U2 — — The requested calibration task
Currently, magnetic alignment is the only function supported by the calibrate command. There are two magnetic
alignment procedures supported; (1) magnetic alignment with automatic yaw tracking termination, and magnetic
alignment without automatic termination.