Hi,
your definition (in the. c file) is missing the __at() keyword including
the address argument. The only difference between header and implementation
file is the extern keyword (and optionally the initializer, do not use them
here, though).
Good luck,
Raphael
On Jun 21, 2014 11:00 PM, "Kustaa Nyholm" <kustaa.nyh...@planmeca.com>
wrote:
> >why not do as the libraries declare and define SFRs?
> >In the header use
> >extern __at(0x0400) volatile BDT ep0_o;
>
>
> Ah, of course, I should have looked at the headers thanks, that is
> exactly what I was looking for!
>
> Hmm, spoke too soon, now the linker complains:
>
> error: missing definition for symbol "_ep0_o", required by
> "../obj/usb_hid.o"
>
> and if try to define it in the .c file I again get:
>
> volatile BDT ep0_o;
>
>
> br Kusti
>
>
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