Files
NmeaClient/ubx/messages/nav.py
T
2026-03-18 20:23:23 +01:00

38 lines
1.2 KiB
Python

import struct
import ubx.msg
class Sig(ubx.msg.UbxMsg):
class Group1:
@classmethod
def from_bytes(cls, data: bytes):
obj = Sig.Group1()
obj.gnss_id = struct.unpack("B", data[0:1])[0]
obj.sv_id = struct.unpack("B", data[1:2])[0]
obj.sig_id = struct.unpack("B", data[2:3])[0]
obj.freq_id = struct.unpack("B", data[3:4])[0]
obj.pr_res = struct.unpack("<H", data[4:6])[0]
obj.cno = struct.unpack("B", data[6:7])[0]
obj.quality_ind = struct.unpack("B", data[7:8])[0]
obj.corr_source = struct.unpack("B", data[8:9])[0]
obj.iono_model = struct.unpack("B", data[9:10])[0]
obj.sig_flags = struct.unpack("<H", data[10:12])[0]
obj.reserved1 = struct.unpack("BBBB", data[12:16])[0]
return obj.__dict__
@classmethod
def from_bytes(cls, data: bytes):
obj = Sig()
obj.iTOW = struct.unpack("<L", data[0:4])[0]
obj.version = struct.unpack("B", data[4:5])[0]
obj.num_signals = struct.unpack("B", data[5:6])[0]
obj.reserved = struct.unpack("BB", data[6:8])[0]
obj.signals = []
remain = len(data) - 8
n = 0
while remain:
signal = cls.Group1.from_bytes(data[n:n + 16])
n += 16
remain -= 16
obj.signals.append(signal)
return obj.__dict__