If I don't give s32k312 delay, the CAN stop during operation

[parksuhun]

hi, In a debug environment, CAN operates without stopping, but it stops after release and initialization
So I gave code delay after main start but it didn't stop What is the problem?

[parksuhun]

Thank you, I changed the HSE Clock and the error was fixed. May I know why I need to fix the HSE?

[Robin_Shen]

Because the ratio between HSE_CLK and APIS_SLOW_CLK set by the Clocks Tool in S32CT is incorrect.

By checking Utest DCF Clients of S32K3xx_DCF_clients.xlsx, the default value of dcf_client_utest_misc is 0x00000101 which means HSE_CLK_MODE_AND_GSKT_CTRL is 00.

So Ratio of 1:2 is ok by default. Otherwise, you may need to change the value of dcf_client_utest_misc.

[Robin_Shen]

Hi

What about changing HSE_CLK from 120MHz to 60MHz? Please refer to the discussion in S32K312 flexcan example not running on Power reset

Best Regards,
Robin
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