42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
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import struct
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filepath = "/home/prathiyuman/Prathiyuman/ContecMonitor/fiveparaminte-main/scratch/raw_contec_stream.bin"
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try:
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with open(filepath, "rb") as f:
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stream = f.read()
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except Exception as e:
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print(f"Error: {e}")
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import sys
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sys.exit(1)
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# Find latest 288-byte and 989-byte packets
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pkt_288 = None
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pkt_989 = None
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i = 0
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while i < len(stream) - 4:
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b0, b1, b2, b3 = stream[i], stream[i+1], stream[i+2], stream[i+3]
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if b3 == 0x46:
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pkt_len = b0 | (b1 << 8)
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if pkt_len == 288 and i + pkt_len <= len(stream):
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pkt_288 = stream[i:i + pkt_len]
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elif pkt_len == 989 and i + pkt_len <= len(stream):
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pkt_989 = stream[i:i + pkt_len]
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i += max(pkt_len, 4)
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else:
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i += 1
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if pkt_288:
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print("=== Scanning 288-byte packet (tail, offsets 250-287) for values 75-90 ===")
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for off in range(250, len(pkt_288) - 1, 2):
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val = struct.unpack_from('<H', pkt_288, off)[0]
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if 75 <= val <= 95:
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print(f" Offset {off}: u16 LE = {val}")
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if pkt_989:
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print("\n=== Scanning 989-byte packet (tail, offsets 900-988) for values 75-90 ===")
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for off in range(900, len(pkt_989) - 1, 2):
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val = struct.unpack_from('<H', pkt_989, off)[0]
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if 75 <= val <= 95:
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print(f" Offset {off}: u16 LE = {val}")
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