Running application from Hercules internal RAM

Hello

I use XDS100v2 with my TMS57020216 custom board.for fast development  and debug I must use internal RAM.

first I change cmd file as below:

MEMORY{
    VECTORS   (X)  : origin=0x00000000 length=0x00000020
    RAM0         (RW) : origin=0x00000020 length=0x00002000
    RAM1      (RW) : origin=0x00002020 length=0x00025FE0
    FLASH     (RX) : origin=0x08000000 length=0x00200000
    RAM_ALIGN (RW) : origin=0x00031000 length=0x0000E000
}

SECTIONS{
    .intvecs : {} > VECTORS
    .text    : {} > RAM1
    .const   : {} > RAM1
    .cinit   : {} > RAM1
    .pinit   : {} > RAM1
    .bss     : {} > RAM1
    .data    : {} > RAM1
    .sysmem  : {} > RAM1
    .stack   : {} > RAM0
}

and also assign stack base address  to 0x00000000 instead of 0x08000000.

also I change tms570ls202x6sRAM.gel as attached file .after connection set  MemoryMap = RAM and after connect  swap_mem(RAM); added, so before load  program memory switch must done.but when I start debug it does not work and I must reload program to work properly. another problem is that interrupt not work in this situation.

an other question is about CCS5.5 , it  has some change copare to CCS5.1  and also in debug menu " load" item added.what is main different between these versions?