topic Re: S32K144 in S32K

S32K144

zq1 — Wed, 26 Jul 2023 08:00:20 GMT

there are two problems,i hope someone could give me some advices;

first,when i debug the S32k144 ,the program will enter defaultisr:

like below:

how can i Analyze the cause？？

them ,when i used the sdk of flash driver ,i want to erase two sector ,the first time of erase is ok,but the second time will jump to DefaultISR in the sdk function ret = FLASH_DRV_CommandSequence(pSSDConfig);

the pSSDConfig is same with first time

hope your reply ,thank you

Re: S32K144

zq1 — Wed, 26 Jul 2023 11:27:20 GMT

this is my link file:

when i define a const global var named Flash_pFlashTable, i debug ,found the Flash_pFlashTable initial value stored in 0x00010000-0x00010FFF; so when i erase the first sector 0x00010000-0x00010FFF, it erased ok ,it means the first rease clear my Flash_pFlashTable intial value,so i second to rease {0x00011000,0x00011FFF} throuth Flash_pFlashTable,it will enter DefaultISR like above, so i want to know how the global variable initial will be placed in flash ,why i can erase them ???

const Flash_flashSector Flash_pFlashTable[FLASH_PFLASH_NUM_SECTORS] = {

// {0x00010000,0x00010FFF},

// {0x00011000,0x00011FFF},

{0x00012000,0x00012FFF},

{0x00013000,0x00013FFF},

Re: S32K144

danielmartynek — Thu, 27 Jul 2023 13:50:52 GMT

Hi @zq1,

The DefaultISR is probably the HardFault handler.

Create this function in main.c

void HardFault_Handler(){ while(1){} }

You can debug it as shown in this document:

https://community.nxp.com/t5/S32K-Knowledge-Base/Fault-handling-on-S32K14x/ta-p/1114447

What is in this region: 0x00011000, 0x00011FFF?

Double check that the FLASH_DRV_CommandSequence() function is in SRAM.

The MCU does not allow reading the flash block while there is a flash operation on that block.

Thank you,

Regards,

Daniel

Re: S32K144

zq1 — Fri, 28 Jul 2023 06:38:25 GMT

thank you ,i will read the articel you gave me ,this problem has been solved, but i have another question, i relocate S32_SCB->VTOR, what i have done like below:

int main(void)
{
/* Write your code here */
S32_SCB->VTOR = 0x00012100 ;
__asm volatile ("cpsie i" : : : "memory");
CPU0_Process();

in the link file :

MEMORY
{
/* Flash */
m_interrupts (RX) : ORIGIN = 0x00012100, LENGTH = 0x00000400
m_flash_config (RX) : ORIGIN = 0x00012500, LENGTH = 0x00000010
m_APP_COMPATIBLE_INFO (RX) : ORIGIN = 0x000012000, LENGTH = 0x00000020
m_text (RX) : ORIGIN = 0x000012510, LENGTH = 0x00032000

this project is app project from my boot project,i just change the interrupt table,like that,my boot project runs well,and enter lpit irq hander nomal,but my app project can't enter lpit irq hander nomal,i guessed the project can't find lpit irq hander number,but how to prove it?

hope your reply

Re: S32K144

danielmartynek — Fri, 28 Jul 2023 11:32:12 GMT

Hi @zq1,

Is the LPIT flag set in the application?

Is the interrupt pending in NVIC? If so, read the PRIMASK.

Or does it go to the DefaultISR() or does it run away?

Can you check the vector table at 0x00012100, find the LPIT vector and check the pointer to the LPIT_ISR function?

Regards,

Daniel

Re: S32K144

zq1 — Mon, 31 Jul 2023 02:11:44 GMT

yes,it enter DefaultISR:

0x12658 <WDOG_EWM_IRQHandler>

and i also want to know The smallest unit of address byte alignment of m_interrupts??

Re: S32K144

zq1 — Mon, 31 Jul 2023 08:27:52 GMT

before relocate interrupt tables,the project runs well,and the lpit interrupt runs well,after relocate the interrupt table ,once enable the lpit interrupt,the projrct will into defaultisr when the counter overflow：

Re: S32K144

danielmartynek — Thu, 03 Aug 2023 12:02:05 GMT

Hi @zq1,

Please double check the VTOR register, then, the LPIT vector in vector table of the application, and the ISR at the address in the LPIT table.

Thanks,

BR, Daniel