User's Manual

3.2.2 GPS Data Packet - UDP Data
Every second, one UDP data will be triggered by one GPS PPS. UDP data has 512 bytes, and the port is 10110.
Table 3.6 GPS Data Packet-UDP Data Definition
GPS UDP data: 512 bytes
GPS Time Data 18 bytes
GPRMC Data 77 bytes ASCII code, valid till 2 bytes after ‘*’
Filled with 411 0xDF
From GPRMC information, ASCII code, A=valid, V=invalid
1=locked, 0=unlocked
Reserved meaningless data
Reserved Data 411 bytes
Location valid or not 1 byte
Flag of PPS lock 1 byte
Reserved Data 4 bytes
Header
Date
Time
μs Time
2 bytes
6 bytes
6 bytes
4 bytes
0xFFEE, 0xFF first
Year month and day in order (2 bytes each), lower byte first, ASCII code
Second minute and hour in order (2 bytes each), lower byte first, ASCII code
Unit is μs, lower byte first
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