2264603_en-US

s32k312 hse work abnormal when enable gcc -O1

Hi NXP expert,

1. i am using s32k312 hse to do a rsa verify function, i store the rsa public key in NVM catalog

```

{ HSE_ALL_MU_MASK, HSE_KEY_OWNER_CUST, HSE_KEY_TYPE_RSA_PUB, 2, HSE_KEY2048_BITS },

```

2. it can verify in default project, which in settings, gcc optimization is None (-O0)

3. i want to shrink the binary size, and change gcc settings to -O1, no else changed. then the function returns failed (0x55a5a164)

how to solve this problem

thanks.

Re: s32k312 hse work abnormal when enable gcc -O1

Hi victory,

Based on your description, it sounds very similar to the issue described in the S32K3常见问题检查列表(Check list)-V1.2-20251113.docx: 4.32 编译器优化设置不当导致HSE服务失败问题

4.32 编译器优化设置不当导致HSE服务失败问题.png

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Robin