S32K312 HSE CLK & UTEST write error

David2024 — Sat, 08 Feb 2025 03:13:01 GMT

MCU:S32k312; MCAL:MCAL4.0; FXOSC:24MHz.

when config HSE clock to 120MHz and write data to UTEST(0x1B00 0000), then there will be a Hardfault.

when config HSE clock to 60MHz, we can write the data to UTEST successful.

We didn't have this problem when we used MCAL1.0 before.

Re: S32K312 HSE CLK & UTEST write error

Robin_Shen — Sat, 08 Feb 2025 10:56:57 GMT

What is version of RTD?
Have you referred to the methods described in chapter 9.3. Improve performance of Secure Boot Application note v0.1.1.0?

IMPORTANT: The 120MHz cannot be set by software directly. It won’t work. Please check the following post. It has information related to this problem: HSE provides RSP_NOT_SUPPORTED response

Best Regards,
Robin
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S32K312 HSE CLK & UTEST write error

Re: S32K312 HSE CLK & UTEST write error