Tms320C6748 DeepSleep Mode

Hi All.

I am a bit confused about the Deep Sleep Mode in tms320c6748.

According to the following example,I make the c6748 to enter the deep sleep mode.

http://processors.wiki.ti.com/index.php/Power_Module_for_C6748_and_OMAP-L138#Sleep_Modes

It has some constraints for Power_SLEEP and Power_DEEPSLEEP in the tms320c6748 device.The following sections must be explicitly placed in on-chip memory:

 .text .bss .vecs .far

In my .cfg file, I place these sections into IRAM :

 Program.sectMap[".text"] = "IRAM"; 

Program.sectMap[".bss"] = "IRAM"; 

Program.sectMap[".vecs"] = "IRAM"; 

Program.sectMap[".far"] = "IRAM";

In my dsp program, I need  to use a large array which size is 600000.When I define such a array, the CCS compiler reported the following error:

#10099-D</a>  program will not fit into linker.cmd

SECTIONS
{
.text: load >> IRAM
.stack: load > DDR
.bss: load > IRAM
.cinit: load > DDR
.pinit: load > DDR
.const: load >> DDR
.data: load >> DDR
.switch: load >> DDR
.sysmem: load > DDR
.far: load >> IRAM
.args: load > DDR align = 0x4, fill = 0 {_argsize = 0x0; }
.cio: load >> DDR
.vecs: load >> IRAM
xdc.meta: load >> DDR, type = COPY

}

If I mask the following settings in the .cfg file, the above error disappears, but the C6748 device can not enter  deep sleep mode.

 Program.sectMap[".text"] = "IRAM"; 

Program.sectMap[".bss"] = "IRAM"; 

Program.sectMap[".vecs"] = "IRAM"; 

Program.sectMap[".far"] = "IRAM";

How can I both make the C6748 devcie to enter the deep sleep mode and the large array which size is 600000 can be defined in the program successfully?

Thanks.