Hi,
I'm struggling to get one of the CAN examples on my IMXRT1170-EVKB board to send messages over CAN bus.
On the board I've connected CAN3 to a local test CAN bus going into a Teensy via a CAN transceiver with termination resistors. I am monitoring the RX and TX signals on the Teensy via a logic analyser. I ensure that the bus speed matches at both ends (1Mb/s)
I've tried various examples for example "evkbmimxrt1170_flexcan_interrupt_transfer_cm7". When I run the example I see:
* A breakpoint set in the interrupt "flexcan_callback" is never hit.
* After selecting node "a" the code is stuck in the while (!txComplete) - which never completes as "txComplete" is set in the interrupt which is never called.
* I don't see any signals on the logic analyser.
* However, if I swap the IMXRT1170-EVKB for an IMXRT1064-EVK board I have and use the same example, the message is sent successfully. I see the message arrive in the Teensy, appear on the logic analyser and the breakpoint is hit in the interrupt routine. So I don't think its my hardware setup.
Any thoughts about what could be wrong and how to debug further.
Thanks
Nick
