Tektronix dpo4auto automotive serial triggering and analysis module tektronix dpo4auto p the tektronix dpo4auto is an automotive serial triggering and analysis module this module enables triggering on packet level information on can and lin buses it will also enable triggering on analytical tools such as digital views of the signal bus views packet decoding search tools and packet decode tables with time stamp information p tektronix dpo4auto application module