Hai vinnay,
I am very happy to find one working with the same project as mine...
May I know to how far you have completed this project. I am working on a similar project that will just display the diagnostic details on an lcd screen. I am also using DT512 and mcz33290..
What is ur test vehicle model ?
What are all the pins that are available in ur test vehicle .
Did you use any cable to from ur driver IC to the OBD in the automobile?....
did you make a notice of the previous freescale product mc33199 which has both K line and L line , why did you prefer mcz33290ef,,, any specific reason behind?
If we have L line in the automobile , dont we need a driver IC that has L line output as well?
Should we invert the iso9141 driver IC output from mcz33290ef and give as input to OBD interface in car.
I have seen many circuits online(example:- http://hem.passagen.se/tomasf/obd2/) that are giving transistor's collector input to K and L lines. Does this mean that we have to give inverted signal as input to obd interface of car...