TWR-K60D100M no CAN output

[Dannii]

Hi,

i hava an issue with the K60D100M development board using the CAN connection. I used an Waveshare SN65HVD230 CAN board and connected it to the J11 connector side B Pin 41 and 42. When using the "flexcan interrupt transfer" example  it doesn't even send anything over the pins on the development board. Is there a possibility, that the pins I used might be wrong for the example. Cause I can't even measure anything at the 2 pin except a DC voltage around 3.3V on the TX pin (B42). Also is there a specific Jumper to have set that it works?

Best regards,

Daniel

[Robin_Shen · Accepted solution]

Hi Daniel,

I don't have SN65HVD230 CAN board on hand, so I measure the waveform at B42(CAN TX) of J11.
Since I did not connect external CAN Transceiver on bus, so the waveform will be like this:

If you measure the DC voltage by using multimeter, then the voltage may be 3.3v. But you should observe the waveform by using oscilloscope instead of using multimeter.

I test it on TWR-K60D100M board and select Node A through serial terminal then trigger transmission.

Best Regards,
Robin
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[Dannii]

Thank you for your detailed answer.

I did it exactly like you and bevore I always used the console output from the MCUXpresso IDE. But after switching to the terminal everything seems to work! Kinda weired but its working now!