[En-Nut-Discussion] Devnut_m3n: architecture dependend directories

[Ole Reinhardt]

Hi!

> May be we could place a makefile in every arch/ directory and one that
> selects the right directory and includes the Makefile there.
> Then we only have to clearify a naming convention for some files and functions.

What about a similar mechanism like the linux kernel does?

If you have a 

arch/cm3/... directory it will be symlinked to 

include/arch 

or similar. I just don't know if Windows (or the bash for windows which
is supplied with Yagarto) does support symlinks.

This way we could have a virtually common directory structure. There we
could place an arch.h which the includes all necessary architecture
specific files.

> So we need to create a arch.h for every existing architecture and that
> one includes standrised nut/os tokens.
> 
> So every architecture could define
> #define NUT_DEV_USART1
> #define NUT_DEV_USART2
> and it could do it with logical numbers or addresses or pointers,
> whatever it needs.
> 
> The user just includes arch.h and uses the tokens.

Thats just done with the board.h, isn't it? In fact that's not the
clearest solution.

Bye,

Ole

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