Owner's manual


Page70
NAV440UserManual
7430‐0131‐01Rev.F
Thispacketcontainstheunit
serialNumberandmodelString.Themodelstringisterminatedwith0x00.Themodel
stringcontainstheprogrammed
versionString(8‐bitAsciivalues)followedbythefirmwarepartnumberstring
elimitedbyawhitespace.
d
Table34IDPayload
IDPayloadContents
Byte
ffset
O
Name Format Scaling Units Description
0 serialNumber U4 — — Unitserialnumber
4 modelString SN — — UnitVersionString
4+N 0x00 U1 — ZeroDelimiter
VersionDataPacket
Table35VersionDataPacket
VersionData(‘VR’=0x56 52)
Preamble PacketType Length Payload Termination
0x5555 0x5652 5 <VRpayl <CRC(U2)>oad>
Thispacketcontainsfirmwareversioninformation.majorVersionchangesmayintroduceseriousincompatibilities.
minorVersionchangesmayaddormodifyfunctionality,butmaintainbackwardcompatibilitywithpreviousminor
ons.
versi velchangesreflectbugfixesandinternalmodificationswit onth r.Thebuild
stageisoneoft following:0=releasecandidate,1=development,2=alpha,3
The
patchle hlittleeffect euse
he =beta.
buildNumberisincrementedwitheachengineeringfirmwarebuild.ThebuildNumberandstageforreleased
irmwarearebothzero.Thefinalbetacandidateisv.w.x.3.y,whichischangedtov.w.x.0.1tocreatethefirstrelease
andidate.Thelastreleasecandidateisv.w.x.0.z,whichischangedtov.w.x.0.0forrelease.
f
c
Table36VRPayload
VRPayloadContents
Byte
ffset
O
Name Format Scaling Units Description
0 majorVersion U1 — — Majorfirmwareversion
1 minorVersion U1 — — Minorfirmwareversion
2 patch U1 — — Patchlevel
3 stage ‐ — —
DevelopmentStage(0=release
evelopment,
ta)
candidate,1=d
2=alpha,3=be
4 buildNumber U1 — — Buildnumber