RTOS/TMS320F28335: Can't load .text section of program from flash to RAM in DSP28335 referring to SPRA958H

Tool/software: TI-RTOS

I successfully load .econst section of program from flash to RAM in DSP28335 referring to SPRA958H(Running an Application from Internal Flash Memory on the TMS320F28xxx DSP), so I try to load .text 

section of program from flash to RAM
Firstly, I define .text section in F28335_BIOS_flash.cmd

SECTIONS
{
/*** Preemptively link the .text section ***/
/* Must come before DSP/BIOS linker command file is evaluated */
.text: LOAD = FLASH, PAGE = 0
RUN = L6SARAM, PAGE = 1
RUN_START(_text_runstart),
LOAD_START(_text_loadstart),
LOAD_END(_text_loadend)
}

Then, I copy the .text section from flash to RAM in main function

void main(void)
{
....
#ifdef EXAMPLE_FLASH
/* Copy the .text section */
memcpy(&text_runstart,
&text_loadstart,
&text_loadend - &text_loadstart);

memcpy(&secureRamFuncs_runstart,
&secureRamFuncs_loadstart,
&secureRamFuncs_loadend - &secureRamFuncs_loadstart);

//--- Initialize the Flash and OTP
InitFlash(); // Initialize the Flash
#endif
...
}

After CCS normally compile and build the program, I burn .out file into DSP28335, But the program can't start and run.

In .map file, .text section is defined:

section page origin length input sections
-------- ---- ---------- ---------- ----------------
.text 0 00300f0b 00000d66 RUN ADDR = 0000e000

How can I solve this question?