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hard fault with Cortex M1

sumit sumit
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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