topic Re: S32K142W internal eeprom access failure, run to DefaultISR in S32K

S32K142W internal eeprom access failure, run to DefaultISR

346500452 — Tue, 14 Nov 2023 09:57:51 GMT

We use S32K142W, and SDK is 4.0.3.

We want use internal simulation eeprom, referred to example <flash_partitioning_s32k142w>.

It looks like the initialization is fine.

But when access with eeprom addr, like 0x14000001, will jump to DefaultISR.

Debug as follow picture.

Attached is my project file.

Re: S32K142W internal eeprom access failure, run to DefaultISR

danielmartynek — Wed, 15 Nov 2023 10:19:10 GMT

Hi @346500452,

What kind if fault exception do you get there?

Can you implement the HardFault_Handler() and read the CSFR register?

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

BR, Daniel

Re: S32K142W internal eeprom access failure, run to DefaultISR

346500452 — Thu, 16 Nov 2023 01:42:52 GMT

Hi
I implement fault process function in project.
When debug it jump to BusFault_Handler, and CFSR is 0x00008200.
It means : BFAR holds a valid fault address.
S32K142W doesn't have FlexRAM ? Or initialize somewhere is wrong ?

Re: S32K142W internal eeprom access failure, run to DefaultISR

346500452 — Thu, 16 Nov 2023 02:58:51 GMT

Hi, @danielmartynek
I change address to access, like 0x14000000 or 0x14000004 or (0x1400000 + 4*n).
And it works ok.

Re: S32K142W internal eeprom access failure, run to DefaultISR

danielmartynek — Thu, 16 Nov 2023 09:34:54 GMT

Hi @346500452,

I see now you have the S32K142W part.

There is the FTFM module that supports 32bit aligned writes only.

Unlike the FTFC module on other S32K14x parts:

Regards,

Daniel