I download the CAN example from "http://www.keil.com/appnotes/docs/apnt_181.asp" .When I debug the project,It shows "Device cannot enter bypass mode,Connection to target missing or incorrectly" And I cannot debug it . My target setting is " off on on on on on off on off off " So I have some question for puzzle. 1.What is the passby Mode problem?how to deal with it? 2.Any wrong about my setting? 3.There is some error on the above webpage.On the page ,there is file named APNT181.CHM , there is a picture which cant be showed in this file.Could you get the correct file? thanks a lot!