First of all thank you for your complete answer.
Sorry but I'm not familiar with linker scripts, where I can find those .ltd files? or what I must do?
I'm very noob with ARM cortex MCUs, I'm trying to understand how it works but it is very complex...
PD: In my oppinion LPCware was better than this site, now I can't find the forums.
Okey, I found how to do it. I used "Relocating majority of application into RAM" procedure.
Now, at startup the code is copied to Ram, but except the main function. When I debug, I can see that my code is over 0x10000000 adrress but in the main section, all the instructions are: "movs r0,r0", and my mcu freezes after boot.
Any idea about what is happening?