Re: Nios-II Exception Address

Altera_Forum · ‎12-10-2004

I've been trying to find a definition in one of the auto-generated

header files for the exception address -- no luck. Is it defined

somewhere?

I see CPU_RESET_ADDRESS in nios2_system.h, but no exception address.

--Scott

Altera_Forum · ‎12-10-2004

Hi smcnutt,

Unfortunately the exception address is not defined in any header files. The kernel assumes it is at a fixed offset from the sdram (which is bad). Please check this discussion thread

my webpage (http://www.niosforum.com/forum/index.php?act=st&f=17&t=327&hl=exception)

wentao

Altera_Forum · ‎12-10-2004

Hi wentao,

> The kernel assumes it is at a fixed offset from the sdram (which is bad).

Yep ... that's what I thought ... I was hoping that it was defined & I was

just missing it 8-P. For now, I patched head.S to copy the exception

trampoline to a hard-coded address ... not very clean ... but it works.

Thanks,

--Scott