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hard fault with Cortex M1

Note: This was originally posted on 24th December 2008 at http://forums.arm.com

Hi all,

I am developing firmware on Cortex M1 on Actel fusion FPGA.I have built the design that has sram at 0x0 location ,size is 1mb and I use it as my program memory.I have Ethernet interface and I want to debug the driver for the ipcore.

I am facing the problem due to hard fault.When I start the transmission on the Ethernet,after transmission first frame the cortex goes to hard fault.

Would anyone tell me  what may be the reason for hard fault? How to overcome?

I am completely new to arm environment.

regards,
Sumit
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  • Note: This was originally posted on 9th January 2009 at http://forums.arm.com

    Hi Joseph,

    thanks a lot.You indicated the right thing.There are pointers and arrays in my c-code and possibly it creates some unaligned transfer.Soon I will check it.I am also going to design system again.I am not getting the interrupt from the core even if the interrupts are enabled.

    regards,
    Sumit
Reply
  • Note: This was originally posted on 9th January 2009 at http://forums.arm.com

    Hi Joseph,

    thanks a lot.You indicated the right thing.There are pointers and arrays in my c-code and possibly it creates some unaligned transfer.Soon I will check it.I am also going to design system again.I am not getting the interrupt from the core even if the interrupts are enabled.

    regards,
    Sumit
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