haha2k:
Has anyone gotten this to work with OBD2? I isolated the consumer and producer from the interrupt example and loaded onto 2 DUE and was able to get consume message from the producer. Then tried hooking up the consumer to the OBD2 and nothing. I haven't tried debug through the code just thought I ask. Thanks.
I think you are misunderstanding how OBDII works with canbus. You don't use consumer or producer mode for mailboxes. Really, remote frames have been depreciated for years. I really haven't ever seen that capability used in anything. Anyway, wikipedia has a decent enough reference: OBD-II PIDs - Wikipedia
Basically, you want to use two mailboxes; one for transmitting, one for receiving. You transmit a PID request on a certain ID and the ECU responds on a different ID which is 8 higher than the ID you sent. If you do this you should see it working.