49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
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import argparse
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import struct
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def get_argparser():
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parser = argparse.ArgumentParser(description="MQTT-controlled 4-channel DDS signal generator")
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parser.add_argument("cidr", nargs=1,
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metavar=("Client_CIDR"),
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help="IPv4 Address of Humpback-DDS in CIDR notation")
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parser.add_argument("mac_addr", nargs=1,
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metavar=("Client_MAC"),
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help="MAC Address of Humpback-DDS")
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parser.add_argument("broker_ip", nargs=1,
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metavar=("Broker_IP"),
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help="IP address of MQTT broker")
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parser.add_argument("name", nargs=1,
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metavar=("Name"),
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help="Device name of Humpback-DDS")
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return parser
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def write_record(f, key, value):
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key_size = len(key) + 1
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value_size = len(value)
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record_size = key_size + value_size + 4
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f.write(struct.pack("<l", record_size))
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f.write(key.encode())
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f.write(b"\x00")
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f.write(value)
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def write_end_marker(f):
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f.write(b"\xff\xff\xff\xff")
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def main():
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args = get_argparser().parse_args()
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with open("flash_config.bin", "wb") as fo:
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write_record(fo, "CIDR", args.cidr[0].encode())
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write_record(fo, "MAC", args.mac_addr[0].encode())
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write_record(fo, "BrokerIP", args.broker_ip[0].encode())
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write_record(fo, "Name", args.name[0].encode())
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write_end_marker(fo)
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if __name__ == "__main__":
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main()
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