On Mon, Dec 12, 2011 at 2:31 PM, Timothy Logan <timothy.lo...@gmail.com> wrote:
> Hello,
>
> I am porting some code from IAR which involves me having to place a few
> different structures in very specific addresses in the MSP430 memory.
>
> In IAR there is a pragma to do it:
> http://supp.iar.com/Support/?note=27787&from=search+result
>
> The way I see doing it in mspgcc is to create a custom linker script with
> custom memory sections, and simply use the "section" attribute to manage
> specific variable memory locations in declarations. This seems a little
> overkill though as I would have to make different memory sections for each
> variable and would have to rewrite the entire memory table as a side
> effect.
>
> My question: Is there an easier way to control which address in memory a
> variable/structure is stored in without having to muck around with linker
> scripts?
You can use asm statements, as are done with the peripheral register
declarations. Something like:
volatile unsigned int specialdata __asm__("0x1320");
will force the definition of specialdata to be placed at address 0x1320.
If the structures are related to peripheral registers, the addresses
may already be defined. If you need things to be placed in
information memory, then there are existing sections appropriate for
that.
Peter
>
> Tim
>
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developers. It will provide a great way to learn Windows Azure and what it
provides. You can attend the event by watching it streamed LIVE online.
Learn more at http://p.sf.net/sfu/ms-windowsazure
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