added UBX:NAV:SIG message

2026-03-18 20:23:23 +01:00
parent b6d8d1c772
commit e8d54ebc87
4 changed files with 57 additions and 7 deletions
@@ -0,0 +1,37 @@
+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__