Re:Can't work with Serial Flash Loader and sflash.

The answer to your questions depends on which tools you are using. In all cases, you'll be moving the RO base address from 0x0, to 0x800. IAR and Keil should have the option to do that through the GUI, although they may prevent linker file modifications in the evaluation versions of their tools. For CodeSourcery/GNU tools, you only need to modify the scatter file.