S32K144 Can0 Tx (PTE5) outputs nothing

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S32K144 Can0 Tx (PTE5) outputs nothing

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klau
Contributor II

Hi Guys,

I created a FlexCAN program using "S32DS project from example" option from S32 Design Studio, ran that on the below evaluation board,

https://www.nxp.com/docs/en/quick-reference-guide/S32K144EVB-QSG.pdf 

And I found no bit stream on PTE5 pin on the header pin J6-18.

Any idea?

Thanks,

Kevin

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2 Replies

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

you need to connect external 12V power supply to J16, so the SBC is powered and SBC's CAN transceiver becomes active. Without this CAN RX is kept low, so the FlexCAN module will not synchronize to a "bus" and will not transmit anything.

BR, Petr

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klau
Contributor II

Hi Petr,

We have found the issue like you wrote, and made it work.

Thank you for your quick response!!

Thanks,

Kevin

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