Is there an s32k144 app+bootload sample program?

[652856839]

Now I am implementing the app upgrade via bootload. But because of the time constraints, I need a sample program to implement this function faster. I hope to get help. Thank you.

[dianabatrlova]

Hello,

Please refer to serial bootloader for the S32K1xx devices. The software is for the S32K148EVB,  However, it can be migrated to S32K144.

Application note:

https://www.nxp.com/docs/en/application-note/AN12218.pdf 

SW:

https://www.nxp.com/docs/en/application-note-software/AN12218SW.zip 

I hope it helps.

Best Regards,

Diana

[652856839]

[dianabatrlova]

Hello,

I have checked your linker files and the bootloader address space and the application address space overlaps.

For example, if you want to start of the application at address 0x0001_0000, the bootloader address space starts at address 0x0000_0000 and the end address can be 0x0000_FBF0.

Also, after you loaded the application into memory, please, check the application in the memory window in the S32DS.

Window -> Show View -> Memory (if it is programmed correctly)

Do you program the application using Srecord?

I hope it helps.

Best Regards,

Diana

[652856839]

Thanks.But now I have a new problem, I can't run the app normally when I jump to the app, which makes me have no clue.

void JumpToUserApplication( unsigned int userSP, unsigned int userStartup)
{
/* Check if Entry address is erased and return if erased */
if(userSP == 0xFFFFFFFF){
return;
}

/* Set up stack pointer */
__asm("msr msp, r0");
__asm("msr psp, r0");

/* Relocate vector table */
S32_SCB->VTOR = (uint32)P_FLASH_APP;

/* Jump to application PC (r1) */
__asm("mov pc, r1");
}

void jump_app_fuc(void)
{
EDMA_DRV_Deinit();
LPUART_DRV_Deinit(INST_LPUART1);
FLEXCAN_DRV_Deinit(INST_CANCOM1);
INT_SYS_DisableIRQGlobal();

JumpToUserApplication(*((uint32*)P_FLASH_APP), *((uint32*)(P_FLASH_APP + 4)));
while(1)
{}

}