CCS中写C，编译时有错误提示 - C/C++ / C语言

在下用的是DSP：DM642，编程用C,平台CCS3.1,计算机仿真。程序在TC上能跑，但是到CCS上提示：Trouble running Target CPU: Memory Map Error: WRITE access by Default to address 0xffffe1c8, which is RESERVED in Hardware.
是不是lnk.cmd的问题，还是DM642sim.gel文件的问题？跪求各位大侠了，在下当以分报之：

附上lnk.cmd文件和DM642sim.gel文件：

-stack 0x500
-heap 0x500
MEMORY
{
  L2 : o = 00000000h l = 40000h /* all SRAM */
  CE0: o = 80000000h l = 2000000h /* external memory */
}

SECTIONS
{
  .cinit > L2
  .text > L2
  .stack > L2
  .bss > L2
  .const > L2
  .data > L2
  .far > L2
  .switch > L2
  .sysmem > L2
  .tables > L2
  .cio > L2
  /*.external > CE0*/
.syncframebuf > CE0
.sendbytesbuf > CE0
.sendsymsbuf > CE0
.outsendsymsbuf > CE0
.recvbuf > CE0
.highpointbuf > CE0

}  


DM642.gel:

emif_init()
{
  #define EMIFA_GCTL 0x01800000
  #define EMIFA_CE1 0x01800004
  #define EMIFA_CE0 0x01800008
  #define EMIFA_CE2 0x01800010
  #define EMIFA_CE3 0x01800014
  #define EMIFA_SDRAMCTL 0x01800018
  #define EMIFA_SDRAMTIM 0x0180001c
  #define EMIFA_SDRAMEXT 0x01800020