S32KのトピックRe: BusFault: A precise (synchronous) data access error has occurred

BusFault: A precise (synchronous) data access error has occurred

fedotech — Tue, 24 Aug 2021 08:10:43 GMT

Hi,

I'm trying to integrate ccp protocol, the hardward platform is S32K144EVB. when I copy a string variable, I encountered the following problems：

the console says:

Interrupt command received. Halting execution.
BusFault: A precise (synchronous) data access error has occurred.
Possible BusFault location: 0x09430040.
HardFault: A fault has been escalated to a hard fault.

Could somebody help me? Thanks!

Re: BusFault: A precise (synchronous) data access error has occurred

danielmartynek — Tue, 24 Aug 2021 08:21:16 GMT

Hi,

For some reasons, it accesses an unimplemented memory:

Do you have the exact instruction that causes the bus fault?

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

If so, please double check the pointers in the code.

Regards,

Daniel

Re: BusFault: A precise (synchronous) data access error has occurred

fedotech — Wed, 25 Aug 2021 02:19:24 GMT

Hi, I fixed the issue. It's because CANape send a Motorola address. Thanks!

Re: BusFault: A precise (synchronous) data access error has occurred

Martin_zhang — Thu, 02 Jun 2022 01:13:07 GMT

Hello ,i have same question,how did you solve this problem?

Re: BusFault: A precise (synchronous) data access error has occurred

Nitrogen8212 — Fri, 19 Apr 2024 14:45:14 GMT

HARDFAULT, thanks.