HSE_SWT_RST

PINKMAN — Wed, 26 Mar 2025 11:57:26 GMT

Hello, expert:

There is a issue that when i download the app file into B block via uds, then use HSE function swap to B block ,i found there are two times HSE_SWT_RST reset interval is 10s after funtional reset.

i think my clock is ok as below:

i also check the HSE_CLK_MODE_OPTION is 00b,which means the ratio is 1:2

i can sure that my HSE firmware is install successfully, version is 0_2_40

i read other post in NXP community, there are some advices seems useful, but i am not try yet.

1. configure the clocks after the HSE_STATUS_INIT_OK bit gets set in the FSR of any of the MU

2. it seems related with Power_Ip_SetMode

I'd appreciate it if you could tell me for sure how I should go about fixing the bugs! as the deadline is very tight!

Re: HSE_SWT_RST

VaneB — Wed, 26 Mar 2025 22:05:12 GMT

Hi @PINKMAN

The HSE_SWT reset could be caused by the missing Power_IP_SetMode configuration. Settings like MODE SETTING and POWER in the MCU module are necessary because, without them, certain clock gating may not be correctly configured. While it is not an error to leave these settings unset if HSE is not being used, some default clock gating may conflict with HSE requirements. As a result, the HSE_SWT reset will be caused by an incorrect clock configuration.

BR, VaneB

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