topic jumping to bootloader or application from bootmanager for MPC5748 Power architecture in S32K

jumping to bootloader or application from bootmanager for MPC5748 Power architecture

Tarek72 — Mon, 03 Feb 2025 02:25:07 GMT

i have to jump from the bootmanager to either the bootloader or the application , so my way is to change the stack pointer and go to the reset handler of the destination , so how can i pass the stackpointer and resethandler of application or bootloader to the bootmanager to use them to jump
#MPC5748G

Re: jumping to bootloader or application from bootmanager for MPC5748 Power architecture

petervlna — Mon, 03 Feb 2025 12:17:49 GMT

Hello,

Not sure what has stack pointer to do with instruction execution, but:

you will simply perform branch from your bootmanager to the memory location where your app or bootloader is:

label:

asm("e_b label");

Simplest possible way.

best regards,

Peter