topic 回复： s32K31x bootloader problem in S32 Design Studio

s32K31x bootloader problem

xsong — Mon, 04 Nov 2024 10:06:12 GMT

After using bootlaoder to flash the app code, I found that it would enter HardFault_Handler, but not when using s32ds to flash. I also exported the hex of the two different flashing methods into the memory and compared them. I found that they were exactly the same, but the one that was flashed using boot would enter HardFault_Handler after restarting.

回复： s32K31x bootloader problem

xsong — Mon, 04 Nov 2024 10:14:01 GMT

Hi Daniel

Thank you very much, I want to ask you why this happened..

Regards,

xsong

Re: s32K31x bootloader problem

xsong — Tue, 05 Nov 2024 03:25:34 GMT

I found that reading the RAM value will cause entering HardFault_Handler

回复： s32K31x bootloader problem

lukaszadrapa — Thu, 07 Nov 2024 05:33:21 GMT

Hi @xsong

most likely, the SRAM is not initialized. These are typical symptoms.

From reference manual:

You can find something like this in startup code:

And the same for ITCM and DTCM memories... So, check how it is done in your bootloader.

Regards,

Lukas