Re: [ECOS] Memory Mapped Peripherals

["Michele Portolan" <michele dot Portolan at imag dot fr>]

> "Michele Portolan" <michele.Portolan@imag.fr> writes:
>
> > Does eCos supports memory mapped devices?
> > If yes, can anyone give me some hints on how to structure a device
driver
> > (ex: how to assign a given memory space to my device) ?
>
> You don't need to do anything. If the device is memory mapped then you
> can just access the device registers in memory with conventional
> memory reads and writes.

What I fearead was that some memory allocation (either static or dynamic, it
does not matter) would overwrite the space reserved to the peripheral. Is
there any possibility of something like that to happen?

Michele


>
> I would reccommend using HAL_READ_UINT32() and its friends in hal_io.h
> since these macros ensure that the correct size accesses are done, and
> prevent the compiler reordering them.
>
> -- 
> Nick Garnett                    eCos Kernel Architect
> http://www.ecoscentric.com      The eCos and RedBoot experts
>
>
> -- 
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
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>


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