scan_dids

scan_dids.py

import time

import udsoncan
from udsoncan.connections import IsoTPSocketConnection
from udsoncan.client import Client
from udsoncan.services import ReadDataByIdentifier

interface = "can0"
txid = 0x6C5
rxid = txid + 0x10

start = 256
end = 3500

conn = IsoTPSocketConnection(interface, rxid=rxid, txid=txid)

with Client(conn) as client:
    for did in range(start, end):
        try:
            response = client.send_request(
                udsoncan.Request(
                    service=ReadDataByIdentifier,
                    data=(did).to_bytes(2, byteorder='big')
                )
            )
            if response.positive:
                print(f"{did}:{len(response)}")
            else:
                print(f"{did}:0")
        except Exception as e:
            pass
            # print(f"# DID {did}: Fehler: {e}")

        time.sleep(0.1)