Dual CANbus 3.6 send to CAN1

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Kakskiv

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Hi,
I've bought some Tennsy 3.6 to use in a CAN network. I see that I need a transceiver in order to connect the Teensy to the CAN-bus.
Is it possible to send from CAN0 to CAN1 without the transceiver? I have connected Rx to Tx, and uploaded one of the examples in FlexCAN, but I dont see any messages.

I need to test my code, and I am still waiting for the transceivers to show up...
 
You need attached a diode to the Tx pin like this:

VyCvZ.png

More info at:
https://www.mikrocontroller.net/attachment/28831/siemens_AP2921.pdf
 
Thanks, i will try this!
I read somewhere that the transceiver was just a voltage converter. That was obviously not the case...
 
Given that the T_3.6 is not 5V tolerant - and runs with 3.3V being logic high - should the pullup for the "1" level instead be a 3.3V pullup?
 
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