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基于Python的COM库控制CANoe同时打开多个.cfg工程方法案例

news 2025/4/24 15:16:36

一般CANoe如果要打开第二个工程时会覆盖第一个打开的工程，如果需要同时用脚本打开两个工程需要修改CAN.ini文件里的参数参数将找个SingleCOMClient=0改为 “SingleCOMClient=1“即可。
这个CAN.ini文件在C:\ProgramData\Vector\CANoe\17 (x64)目录下可以CMD下执行这个命名：

dir C:\\ProgramData\\CAN.ini /S /B

1. 下面是我通过python代码去修改这个CAN.ini文件的代码：

import subprocess
import sysdef find_can_ini():cmd = 'dir C:\\ProgramData\\CAN.ini /S /B'result = subprocess.run(cmd, capture_output=True, text=True, shell=True)output = result.stdout.strip()if output:return output.split('\n')[0]  # 返回第一个找到的结果else:raise FileNotFoundError("CAN.ini 文件未找到")def modify_can_ini(file_path, value):with open(file_path, 'r') as file:lines = file.readlines()with open(file_path, 'w') as file:for line in lines:if 'SingleCOMClient=' in line:line = line.replace('SingleCOMClient=1', f'SingleCOMClient={value}')line = line.replace('SingleCOMClient=0', f'SingleCOMClient={value}')file.write(line)if __name__ == '__main__':if len(sys.argv) != 2 or sys.argv[1] not in ['0', '1']:print("Usage: python test.py <value>")print("<value> should be 0 or 1")sys.exit(1)value = int(sys.argv[1])try:can_ini_path = find_can_ini()print(f"CAN.ini 文件的绝对路径是: {can_ini_path}")modify_can_ini(can_ini_path, value)print(f"已成功修改 {can_ini_path} 文件中的 SingleCOM 参数为 {value}")except FileNotFoundError as e:print(e)print("Finished")

上面代码就可以将CAN.ini文件参数SingleCOMClient改为1

; 允许只有一个单一客户端连接到应用程序
; 每个进一步的客户端如果创建一个类的实例
; 将会启动一个新的应用程序实例。
; 请注意，这将意味着许多其他COM客户端可能无法正常工作，
; 并且使用ActiveX或.NET面板加载配置可能会导致
; 递归启动更多的应用程序实例。
SingleCOMClient=0

下面就可以打开多个CANoe工程了

2. 打开第一个工程，源码如下：

import sys
import json
import time
import win32com.client
import subprocessapp = win32com.client.Dispatch('CANoe.Application')
Measurement = app.Measurementdef get_canoe_pid():# 执行 tasklist 命令result = subprocess.run(['tasklist'], capture_output=True, text=True)# 解析输出for line in result.stdout.splitlines():if 'CANoe64.exe' in line:# 提取 PIDparts = line.split()pid = int(parts[1])  # PID 通常是第二个部分return pidreturn Nonedef RTServerConnect():app.Configuration.DistributedMode.Connect()app.Configuration.Save()def RTServerDisconnect():app.Configuration.DistributedMode.Disconnect()app.Configuration.Save()def getRTServerResult():RTServer = app.Configuration.DistributedMode.RTServerif RTServer:print(RTServer)return RTServerprint(RTServer)return Nonedef setRTServerEnable(RTServer):app.Configuration.DistributedMode.RTServer = RTServerprint("success!!! ")def setRTServerDisenable():# self.App.Configuration.DistributedMode.RTServer = "169.254.80.10"app.Configuration.DistributedMode.RTServer = ""def link_and_start_app(link_cfg):app.Open(link_cfg)time.sleep(20)if getRTServerResult():setRTServerDisenable()Measurement.Start()pid = get_canoe_pid()CANoe_PID = pidwith open("ProcessPID.txt", "w") as json_file:json.dump(CANoe_PID, json_file)if __name__ == "__main__":j_workspace = sys.argv[1]link_cfg = r'%s\ResourceTest\T1_link\T1_link.cfg' % j_workspacelink_and_start_app(link_cfg)print("finished")

3. 打开第二个CANoe工程，源码如下

import sys
import time
import win32com.client
from Common import RTServerIPapp = win32com.client.Dispatch('CANoe.Application')
Measurement = app.Measurementdef RTServerConnect():app.Configuration.DistributedMode.Connect()def RTServerDisconnect():app.Configuration.DistributedMode.Disconnect()def getRTServerResult():RTServer = app.Configuration.DistributedMode.RTServerif RTServer:print(RTServer)return RTServerprint(RTServer)return Nonedef setRTServerEnable(deviceID):app.Configuration.DistributedMode.RTServer = RTServerIP[f"{deviceID}"]# app.Configuration.DistributedMode.RTServer = "192.169.2.90"app.Configuration.Save()print("success!!! ")def setRTServerDisenable():# self.App.Configuration.DistributedMode.RTServer = "169.254.80.10"app.Configuration.DistributedMode.RTServer = ""def no_live_and_start_app(no_live_cfg, Device_ID):app.Open(no_live_cfg)time.sleep(10)# RTServer = getRTServerResult()setRTServerEnable(Device_ID)time.sleep(20)Measurement.Start()
# #
if __name__ == '__main__':j_workspace = sys.argv[1]device_ID = sys.argv[2]no_live_cfg = r'%s\ResourceTest\NoRX\NoRx.cfg' % j_workspaceno_live_and_start_app(no_live_cfg, device_ID)print("finished")