Python调用Canoe获取启动Canoe,停止Canoe,获取系统变量,更改系统变量,获取信号值
import win32com.client
def launch_canoe_and_get_system_variables(canoe_path, sv_names):
"""启动Canoe并获取指定的系统变量值"""
canoe = win32com.client.Dispatch("CANoe.Application")
canoe.Launch(canoe_path) # 启动Canoe
time.sleep(5) # 等待Canoe启动
sv_values = {}
for sv_name in sv_names:
sv_values[sv_name] = canoe.System.GetValue(sv_name) # 获取系统变量值
return sv_values
def stop_canoe(canoe):
"""停止正在运行的Canoe实例"""
canoe.Quit(win32com.client.constants.oPendingChangesSave)
def change_system_variable(canoe, sv_name, new_value):
"""更改Canoe中的系统变量值"""
canoe.System.SetValue(sv_name, new_value)
def get_signal_value(canoe, signal_name):
"""获取Canoe中特定信号的值"""
return canoe.Measurement.Signals(signal_name).Result
# 使用示例
import time
canoe_path = r"C:\Program Files\Vector Informatik\CANoe\CANoe.exe" # CANoe安装路径
sv_names = ["MySystemVar1", "MySystemVar2"] # 系统变量名称
signal_name = "MySignal" # 信号名称
canoe = None
try:
# 启动Canoe并获取系统变量值
sv_values = launch_canoe_and_get_system_variables(canoe_path, sv_names)
print(f"System Variables: {sv_values}")
# 更改系统变量的值
change_system_variable(canoe, sv_names[0], 123)
time.sleep(2) # 等待变量更新
new_sv_value = canoe.System.GetValue(sv_names[0])
print(f"Changed System Variable {sv_names[0]} to {new_sv_value}")
# 获取信号值
signal_value = get_signal_value(canoe, signal_name)
print(f"Signal Value: {signal_value}")
finally:
# 停止Canoe
if canoe is not None:
stop_canoe(canoe)
这个代码示例展示了如何使用Python和win32com库来启动、停止CANoe,获取和设置系统变量,以及获取信号值。代码中的注释解释了每个函数的功能,并提供了使用示例。在使用前,需要安装pywin32库,它允许Python访问Windows COM服务器。
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