[ECOS] data abort exception (SWI)

[Gary Thomas]

trollepi jj wrote:
> Hi,
> I try to make a ecos project without Redboot for an atmel AT91M55800A (phycore). So it's a RAM project. I compile and debug an application without any problems.
> When i try to generate a SWI (with asm("swi")), the application reach the exeption handler that I define but the number of the exception is not CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT (number 2 that i give on cyg_exception_set_handler) but CYGNUM_HAL_VECTOR_ABORT_PREFETCH (number 3) . Maybe I might modify vector.S to do the remap (like hal_platform_setup.h ). If anybody have an idea? I search on your mailing and nothing fit well.

Why are you trying to use the SWI instruction?

In any case, it looks like there is a typo in the SWI handler.
I'm pretty sure no one has ever actually used this path!

Please try the attached patch and let me know if it fixes
your problem.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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