S32K312: HSE API does not work with specific firmware HSE_FW_S32K312_12_2_76_0

[HaiHoangSoftware]

Hi @nxp Supporter

Our project use S32K312 chip with HSE firmware HSE_FW_S32K312_12_2_76_0.

I use NXP DemoAPP 0.2.55.0 for flash firmware and testing.

1. After install HSE firmware, HSE firmware version is matched with provided package.

FSR register value is 0x0B200000 means HSE status boot is not ok.

2. Import key fails with NXP's demo app

Format key Catalogs failed with error 0xAA55A21C

3. Here is the other register value:

• IVT.BOOT_SEQ value = 0 
• MU_FSR (all status bits) = 0x0B200000 -> HSE_STATUS_BOOT_OK = 0 (BOOT not OK)
• MU_GSR (error/warning bits) = 0x00000000
• HSE_GPR Register 3 (0x4039C028) = 0x00000181

4. When I install NXP HSE Firmware 0.2.55.0, all crypto features works fine.

I have some questions:

• How can I do in this case?
• I can not erase/install/update other HSE firmware. Is this expected behaviour?
• Is this possible to upgrade/downgrade HSE firmware?

Thanks,

[davidtosenovjan · Accepted solution]

HSE_FW_S32K312_12_2_76_0 is not standard FW version, but certain premium version of FW.

It is not supported over standard mass market support, please contact your FAE contact.

Thanks for understanding

[HaiHoangSoftware]

Hi team,

I got support from NXP FAE team.

Thanks,