Re: [avr-gcc-list] Variables in external ram

[Joerg Wunsch]

As "Patrizio Zelotti" <address@hidden> wrote:

>Is possible to declare a section .noinit instead of declare the
>section for each variable ?

You could resort to assembler for the variable definitions, if you
really think it's worth the while.  In assembler, .section directives
stick until the next section directive.

Still, you'd need to provide a header file declaring the variables
then.

>For example
>... __attribute__ ((section (".noinit")))
>int a; // external ram variables
>long b;
>short c;
>... end section .noinit
>int c; // internal ram variables

Another option: use a CPP (C preprocessor) macro, like:

#define NI __attribute__ ((section (".noinit")))

...
int a NI;
long b NI;
short c NI;
-- 
J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/

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