Scatter ext. RAM loading

Hello to everyone!!
I need some advices about scatter loading;
In my application I have a scatter file to load a binary in external SDRAM (0xA0000000) by a bootloader; i would place some piece of

code in FLASH, but leave the mail LOAD REGION in SDRAM;
According to ARM Linker Manual, chapter 8, I made up this file:

LR_ERAM1 0xA0000000 0x00100000 {
                ER_ERAM1 0xA0000000 0x00100000 {
                   *.o (RESET, +First)
                   *(InRoot$$Sections)
                }
                RW_IROM1 0x00000000 0x00010000  {  ; RW data
                                 .ANY (+RO)
                }
                RW_ERAM1 0xA1000000 0x00010000  {  ; RW data
                               .ANY (+RW +ZI)
                }
                RW_IRAM1 0x10000000 0x00010000  {  ; RW data
                               .ANY (+RW +ZI)
                }

}

One Load Region in SDRAM, more than one execution region in FLASH, SRAM and SDRAM.
According with the linker documentation, RO region placed first and after RW and ZI.
Soon as I put the FLASH region, with RO inside application HANGS; if I leave the RO inside the first ER_ERAM1 all is OK.

I have LPC1788 Cortex-M and KEIL uVision 4.72.

Any advice?