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Use External Ram for variable

Hi,
i'm working with STR710FZ2,
now i have converted my project from CARM to REALVIEW.
I use:
- on_chip IRAM1 for internal variable,
- on_chip IRAM2 for RAM function

My problem is that i want use an additional space for variable in external RAM.
In target option i declare new space address 0x62000000, i declare variable that could be addressed in external RAM in a c file and locate that file at address 0x62000000.Problem with scatter file that is automatically create that define that memory read only???I have also tried to create manually scatter file declaring memory address R/W but nothing.

PS:I have already used external RAM with a program compiled in CARM using keyword __at 0x62000000 and it has working correctly.

In realview is requested a keyword for locating a variable in external RAM.

Thanks, Manuel

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