S32KのトピックQuestions about CAN TX transfer fail

Questions about CAN TX transfer fail

jm_shin — Mon, 27 May 2019 08:58:30 GMT

Hello NXP

I sent the CAN TX signal via the flexcan_encrypted_s32k144 example code.
However, in CANOE, the TX signal is not received normally.

- CANOE trace

- used SendCANData code

How can I receive the CAN TX signal normally in CANOE?

Thanks

Re: Questions about CAN TX transfer fail

PetrS — Tue, 28 May 2019 08:58:28 GMT

Hi,

this can be caused by CAN bit timing. Ensure you set the same sample point on MCU and CANoe side.

BR, Petr

Re: Questions about CAN TX transfer fail

jm_shin — Tue, 28 May 2019 10:53:26 GMT

Dear Petr Stancik

The answer is not well understood.
Using the example code, CAN Msg delivered from CANOE to EVB(RX) has been received normaly.
However, there is an error when sending Msg from EVB to CANOE.
I think since RX is received, the bit timing seems to be well setting between CANOE and EVB.
Below is a configuration picture of the problem.

Please correct me if I misunderstood your answer.

Thanks

Re: Questions about CAN TX transfer fail

jm_shin — Fri, 31 May 2019 08:31:38 GMT

Dear Petr Stancik

When 'fd_enable' is set to false in struct 'flexcan_data_info_t', CAN Msg is normally received by CANOE.
Must 'fd_enable' be set to true?
And then, if we set 'fd_enable' to false, should 'enable_brs' be set to false?

Thanks