How to place a group of variables into specified RAM section

[yizhou]

Dear，

My target is to place a group of variables into specified RAM section.

I updated the LCF file like:

    internal_ram:          org = 0x40000000,   len = 0x00013000

   calcram:      org = 0x40013000,   len = 0x00001000

and add section:

/calbiration section/

.calc_symbols(NOLOAD) : {

   . = ALIGN(4);

   *(.calc_symbols)

   . = ALIGN(4);

} > calcram

the global varible is declared as:

__attribute__ ((section(".calc_symbols"))) uint16_t  TaskTick;

but the CodeWarrior always reports an error:

section '.calc_symbols' must have an uninitialized data section for object 'TaskTick'

In fact, I prefer to use #pragma command to specify data section or code secton for some variables or functions.

I believe codeWarrior can support it, but how to use it? And where to find a helpful document on NXP website?

Thanks and BR

Zhou Yi

CellPhone: +86 189 51964529

CT DD DS AA CN NJ

Original Attachment has been moved to: OldCCP.zip

[martin_kovar]

Hello,

please check the example in the post attachment. Check mainly linker file and main.c file.

If you have any other questions, please feel free to write me back.

Regards,

Martin