DR + GPS
STARTER KIT REFERENCE MANUAL
Lassen DR + GPS Reference Manual 105
Byte Name Type Units/
LSB Range / Value Meaning
Code U8 0x28
Subcode U8 0x16 Ephemeris
Index U8 1-32 SV PRN
0 0-2 Source U3 0
1
2
3
Invalid / Clear
Host Input
Host Override
Data Decode
0 3 Newness U1 0
1
From BBRAM
New
1 Reserved
2-25 Compressed Ephemeris 24xU8 Subframe 1
26-49 Compressed Ephemeris 24xU8 Subframe 2
50-73 Compressed Ephemeris 24xU8 Subframe 3
The data in this message will change after initialization through fixes. The
Invalid/Clear command and the Time Accuracy are currently not supported.
Table 81: 0x29-01: Time Initialization Report Message Byte Name Type Units/LSB Range / Value Meaning
Code U8 0x29
Subcode U8 0x01
0 0-2 Source U3 0
1
2
3
Invalid / Clear
Host Input
Host Override
GPS Data Decode
0 3 Newness U1 0
1
From BBRAM
New
0 4 Time Acc’y Status U1 0
1
Acc’y Unknown Acc’y
Valid
1-2 Week number U16 1 wk <1024 GPS week number
3-6 Time of week U32 1 ms <604800000 ms GPS time of week
7-10 Time Accuracy U32 1 ms 0-604800000 ms 1-sigma accuracy