S32K344 automatic SWAP after the reset

[liyongfeng]

After the SWAP firmware is installed, the SWAP occurs after each MCU reset.

How to solve this problem?

FW information:

s32k3x4_Secure_Baf_0.5.0_0.10.0_pb220428.bin.pink
s32k3x4_hse_fw_1.5.0_2.1.0_pb220625.bin.pink

[VaneB]

Hi @liyongfeng 

With the provided information it looks that the below could be the reason.

In the A/B SWAP configuration, the "HSE service ID HSE_SRV_ID_ACTIVATE_PASSIVE_BLOCK allows the host to swap the active and passive partitions: when calling this service, on the next reset, the passive partition becomes the active partition, and the active partition becomes the passive partition".

Verify if this is your case, if not let me know.

B.R.

VaneB