a newguy with this board,I want to know why the status of can is always busy,thanks

[GaoWei149173702]

I opened a demo project can_pal_s32k146,and downloaded it to the board S32K146-EVB,and started to debug.and I found that it always stopped at line 266:

while(CAN_GetTransferStatus(&can_pal1_instance, RX_MAILBOX) == STATUS_BUSY);

Do I need to connect the board to a "SLAVE"?

[Robin_Shen · Accepted solution]

Yes. 

The example documentation can be found in the S32 SDK documentation at Examples and Demos section. (<SDK_PATH>/doc/Start_Here.html)
This also mentioned that you need to use an external 12V power supply.

Best Regards,
Robin
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[GaoWei149173702]

Is this demo for the board "S32K146EVB_Q1xx_RevB"?

I can't even catch any wave with a oscilloscope on the pin "canHI"while I press the buttons.

I only have one board ,is there any way to prove that it works well？such as loopback mode and so on.

[Robin_Shen]

This example should work for both Rev A and Rev B.

Did you power the board with J16 external 12V supply? Otherwise the CAN_HI of J13 will not able to output CAN signal. You can also measure the signal at PTE5(for example J6 26pin)

[GaoWei149173702]

OK, thanks very much.