how to trace the reason of hardfault

Projects General Guidance
1

Hi all,

I am getting hardfault exception in my code. And when i watched my registers CFSR and HFSR their values are like
CFSR = 0x00001100

  • IBUSERR = 1
  • STKERR = 1
    HFSR
  • FORCED = 1
    So can you just tell me what those flag means? And can i get that instruction just before occuring hard fault? I just want to trace the condition or instruction or function that occurs just before Hard fault. Can you tell me that?

Thanks & Regards,
Jonam

2

What processor is this? A little more detail please.

How to use this forum

3

I am really sorry sir. I forgot to give you the details.
Sir, i am using STM32F407 microcontroller. And for coding and compiling i am using IAR Embedded Workbench with versino 6.40. What problem i am actually facing is that due to some reasong my controller is going into the hardfault which is an exception. So i just want to trace the previous state or previous function which cause to this hardfault, and what those flag means which i have mention before in my previous message.

4

Hello Jonam,
I am interested in the internal fault issue on microprocessors. Arduino uses several microprocessors, but I do not see your chip in the Arduino website. Your processor from STM (SGS-THOMSON Microelectronics in June 1987, from merger of SGS Microelettronica (Italy) and Thomson Semiconducteurs), may be evaluated using a "logic analyzer" . Also there is usually an internal scan chain that a test access protocol is able to observe.

Which Arduino product are you using?

5

It's NOT an Arduino!

Mark

6

You're not likely to get much help here Jonam, that's not an Arduino processor.

Rob

7

Oh ok. Thank you for all of you for replying me. And yes it is not arduino product. Thank you guys.

8

We'd still help if we could, but the chances of someone here having experience with that chip are slim I think.

Rob