Skip to main content

Implementation of the Unified Diagnostic Service (UDS) protocol (ISO-14229) used in the automotive industry.

Project description

https://app.travis-ci.com/pylessard/python-udsoncan.svg?branch=master

This project is an implementation of the Unified Diagnostic Services (UDS) protocol defined by ISO-14229 written in Python 3. The code is published under MIT license on GitHub (pylessard/python-udsoncan).

Documentation

The documentation is available here : http://udsoncan.readthedocs.io

Requirements

  • Python 3.7+

Installation

using pip:

pip install udsoncan

Example

import SomeLib.SomeCar.SomeModel as MyCar

import udsoncan
from udsoncan.connections import IsoTPSocketConnection
from udsoncan.client import Client
from udsoncan.exceptions import *
from udsoncan.services import *

udsoncan.setup_logging()

conn = IsoTPSocketConnection('can0', rxid=0x123, txid=0x456)
with Client(conn,  request_timeout=2, config=MyCar.config) as client:
   try:
      client.change_session(DiagnosticSessionControl.Session.extendedDiagnosticSession)  # integer with value of 3
      client.unlock_security_access(MyCar.debug_level)   # Fictive security level. Integer coming from fictive lib, let's say its value is 5
      client.write_data_by_identifier(udsoncan.DataIdentifier.VIN, 'ABC123456789')       # Standard ID for VIN is 0xF190. Codec is set in the client configuration
      print('Vehicle Identification Number successfully changed.')
      client.ecu_reset(ECUReset.ResetType.hardReset)  # HardReset = 0x01
   except NegativeResponseException as e:
      print('Server refused our request for service %s with code "%s" (0x%02x)' % (e.response.service.get_name(), e.response.code_name, e.response.code))
   except (InvalidResponseException, UnexpectedResponseException) as e:
      print('Server sent an invalid payload : %s' % e.response.original_payload)

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

udsoncan-1.22.1.tar.gz (123.3 kB view hashes)

Uploaded source

Built Distribution

udsoncan-1.22.1-py3-none-any.whl (162.5 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page