68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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DBC文件生成工具
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"""
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import cantools
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from cantools.database import Database, Message, Signal
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def create_sample_dbc():
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"""创建一个示例DBC文件"""
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db = Database()
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# 添加消息
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msg1 = Message(
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name="EngineData",
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frame_id=0x100,
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length=8,
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signals=[
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Signal(name="RPM", start=0, length=16, is_signed=False),
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Signal(name="Speed", start=16, length=16, is_signed=False),
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Signal(name="Temp", start=32, length=8, is_signed=True)
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]
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)
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msg2 = Message(
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name="VehicleStatus",
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frame_id=0x200,
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length=4,
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signals=[
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Signal(name="DoorStatus", start=0, length=4, is_multiplexer=False),
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Signal(name="LightStatus", start=4, length=4, is_multiplexer=False)
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]
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)
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# 添加断路器状态消息
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msg3 = Message(
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name="CircuitBreakerStatus",
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frame_id=0x1401A501,
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is_extended_frame=True,
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length=8,
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signals=[
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Signal(name="FuelCellBreaker", start=0, length=8, is_signed=False),
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Signal(name="BatteryBreaker", start=8, length=8, is_signed=False),
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Signal(name="MotorBreaker", start=16, length=8, is_signed=False),
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Signal(name="BatteryMeterBreaker", start=24, length=8, is_signed=False),
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Signal(name="DCDC5Breaker", start=32, length=8, is_signed=False),
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Signal(name="BowDistBoxBreaker", start=40, length=8, is_signed=False),
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Signal(name="SternFT45Breaker", start=48, length=8, is_signed=False),
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Signal(name="SternRudder1Breaker", start=56, length=8, is_signed=False)
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]
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)
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db.messages.extend([msg1, msg2, msg3])
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return db
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def save_dbc_file(db, filename):
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"""保存DBC文件"""
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with open(filename, "w") as f:
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f.write(db.as_dbc_string())
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if __name__ == "__main__":
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print("正在生成示例DBC文件...")
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db = create_sample_dbc()
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save_dbc_file(db, "generated.dbc")
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print("DBC文件已生成: generated.dbc")
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