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Flex CAN between 2 FRDM k64F boards

Question asked by Niranjan ravi on Feb 27, 2019
Latest reply on Mar 6, 2019 by Niranjan ravi

Hi,

      I was able to get the demo application of FlexCAN from TWR-K64 board using MCU xpresso as my IDE

(SDK_2.5.0_TWR-K64F120M\boards\twrk64f120m\driver_examples\flexcan).

 Further when I tried Internal loop-back program of flexCAN example in FRDM k64F,it was successful but when I run the interrupt mode method where I flashed flexCAN code in two FRDM k64F boards. One node being "a" and other being "b" as per the example , it was not successful.

 

    Connection wise I connected both TX together, Rx together and a common ground. I did not use CAN transreceiver with either of the boards. Am i missing something here?

 

   Is it because I do not have an external CAN transreceiver here?

 

   Saw a previous discussion here , something similar : TWR-K60f120m and FRDM-K64f CAN communication 

where it is mentioned I can do without a CAN transreceiver. Both my boards are less than 1m apart and I am using only 2 boards here.

Any directions would be helpful.

Thank you.

 

IDE: MCU xpresso.

Thanks and Regards

Niranjan

 

 

 

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