[S32K3] Bootloader jump to bootloader

[Changhawn]

Dear

I am developing bootloader. But I have difficult in jumping(bootloader to application),

So I am testing jump routine to bootloader from Bootloader like below.

But I got the error like picture 1.

Could you recommend some debugging point? 

Thank in advance.

picture 1)

picture 2)

picture 3) code

picture 4) loader file

[Changhawn · Accepted solution]

Share your current situation.

I confirmed that it jumps with the bootloader and application made with dummy simple code.

Currently, I am checking the jump from bootloader to application in the current project.

and will check the loader file, system.c, and startup_cm7.S files regarding application booting.

[danielmartynek]

Hi @Changhawn,

I has been discussed a few times already.

For example here:

https://community.nxp.com/t5/S32K/S32K312-bootloader-jump-to-application-issue/td-p/1795729

You need to step through the code and check the flash values at the addresses.

Regards,

Daniel

[Changhawn]

Dear danielmartynek.

When I try todo with your guide, still have problem like below picture 1).

picture 2) is register view before running application_reset_handler

I will check and search this problem in Community. If you give some guide, thank you very much.

picture 1)

picture 2)

[Changhawn]

Without any controling. I can confirm jump Reset_handler() again.

But I got the Error befor main() like below picture. Still debugging the reason.

    jump_to_application = (*(volatile uint32_t *)0x00401004);

    jump_to_application();