How to define a variable at external RAM?

But this is the usage of RAM Function, it can make the function copy to RAM. And what I want is to define a variable at external RAM, not a function. So, how should I do?

But this is the usage of RAM Function, it can make the function copy to RAM. And what I want is to define a variable at external RAM, not a function. So, how should I do?

Variables are by default in RAM (except when you apply the 'const' keyword). Therefore it makes no sense to apply another __ram keyword for variables.

Reinhard

Take a look again to:
http://www.keil.com/support/man/docs/ca/ca_userclass.htm

Imaging that NVRAM is your external RAM. Of course you may also use 'XRAM' as userclass or any name you want.

Reinhard

I do it. thanks alot Reinhard