基于Python DoIPClient库的DoIP上位机开发手顺

代码

address, announcement = DoIPClient.await_vehicle_announcement()logical_address = announcement.logical_addressip, port = addressprint(ip, port, logical_address)

效果

代码

address, announcement = DoIPClient.get_entity(ecu_ip_address=sIp, protocol_version=3, eid=None, vin=None)#请求ECU的车辆识别响应消息。
logical_address = announcement.logical_address
ip, port = address
sIp = ip
sLA = logical_address

效果

可以发出DOIP请求，之所以显示超时未等到回应

是因为，目标Port和实际上的诊断仪port不一致

为了实现指定Tester端口，避免随机端口，重写这个方法get_entity()

def get_entity(

cls, ecu_ip_address="255.255.255.255", protocol_version=0x02, eid=None, vin=None, local_port=8080

DoIPClient对象的创建

可见该类创建后，不会请求车辆识别(UDP)，所以DoIPClient的对象创建要在车辆声明/车辆ID识别之后，使用获取到的LA+IP等进行TCP通信，创建DoIPClient后会自动进行TCP的三次握手，为了使用固定端口进行通信，这里对DoIPClient这个类进行了重写。

新增了client_port这个参数，注意port = 0表示使用随机端口。

DoIPClient执行TCP三次握手成功之后会调用路由激活！

封装后的自动连接函数

代码

try:#Get the DoIP Entity Informationaddress, announcement = DoIPClient.get_entity(ecu_ip_address=sIp, protocol_version=3, eid=None, vin=None, local_port=cPrt)#请求ECU的车辆识别响应消息。logical_address = announcement.logical_addressip, port = addresssIp = ipsLA = logical_address#Creat DoIP TCP connectiondoIPConn = DoIPClient(sIp, int(sLA), tcp_port=13400, udp_port=13400,activation_type=0, protocol_version=3,client_logical_address=int(cLA), client_port = int(cPrt),client_ip_address=cIp, use_secure=False,auto_reconnect_tcp=False)
except Exception as e:window['-CONSOLE-'].update(e)

效果