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问 2812外部扩展了2片RAM，分别与zone2和zone6连接。用CCS的View--memory可以看到两个外部RAM的数据，（地址分别从0x080000和0x0100000开始）并可以修改。把程序的数据存储器分配到外部RAM，程序也可以正常运行。想把程序也load到外部RAM，这时提示在外部RAM的地址上验证错误。请问如何处理？

谢谢！ 答 1: 映射需要将外部RAM映射到程序存储器空间吧 答 2: 如何影射如何影射呢？
我在CMD文件里把程序存储器分配到了外部RAM，load的时候出错。

谢谢！ 答 3: 片选SRAM硬件上也要通过片选映射到程序空间 答 4: 谢谢上面的两位楼主能帮我解决个问题吗？这个问题困扰我很长时间了，具体是这样的，我用的也是F2812，代码短的时候仿真和烧写到FLASH运行都是正常的，后面添加了一些功能，代码自然就长了，这个时候仿真是好的，但是烧写到FLASH中运行就跑飞了。请指教！
我估计是烧写的CMD文件空间分配的问题，就是某一部分的空间小了，如果是这样的话，不知道怎么修改CMD文件，多谢了，期盼你们的回复

附CMD文件

MEMORY
{
PAGE 0:    /* Program Memory */
           /* Memory (RAM/FLASH/OTP) blocks CAN be moved to PAGE1 for data allocation */

   ZONE0       : origin = 0x002000, length = 0x002000     /* XINTF zone 0 */
   ZONE1       : origin = 0x004000, length = 0x002000     /* XINTF zone 1 */
   RAML0       : origin = 0x008000, length = 0x001000     /* on-chip RAM block L0 */
   ZONE2       : origin = 0x080000, length = 0x080000     /* XINTF zone 2 */
   ZONE6       : origin = 0x100000, length = 0x080000     /* XINTF zone 6 */
   OTP         : origin = 0x3D7800, length = 0x000800     /* on-chip OTP */
   FLASHJ      : origin = 0x3D8000, length = 0x002000     /* on-chip FLASH */
   FLASHI      : origin = 0x3DA000, length = 0x002000     /* on-chip FLASH */
   FLASHH      : origin = 0x3DC000, length = 0x004000     /* on-chip FLASH */
   FLASHG      : origin = 0x3E0000, length = 0x004000     /* on-chip FLASH */
   FLASHF      : origin = 0x3E4000, length = 0x004000     /* on-chip FLASH */
   FLASHE      : origin = 0x3E8000, length = 0x004000     /* on-chip FLASH */
   FLASHD      : origin = 0x3EC000, length = 0x004000     /* on-chip FLASH */
   FLASHC      : origin = 0x3F0000, length = 0x004000     /* on-chip FLASH */
   FLASHA      : origin = 0x3F6000, length = 0x001F80     /* on-chip FLASH */
   CSM_RSVD    : origin = 0x3F7F80, length = 0x000076     /* Part of FLASHA.  Program with all 0x0000 when CSM is in use. */
   BEGIN       : origin = 0x3F7FF6, length = 0x000002     /* Part of FLASHA.  Used for "boot to Flash" bootloader mode. */
   CSM_PWL     : origin = 0x3F7FF8, length = 0x000008     /* Part of FLASHA.  CSM password locations in FLASHA */
   
/* ZONE7       : origin = 0x3FC000, length = 0x003FC0     /* XINTF zone 7 available if MP/MCn=1 */
   ROM         : origin = 0x3FF000, length = 0x000FC0     /* Boot ROM available if MP/MCn=0 */
   RESET       : origin = 0x3FFFC0, length = 0x000002     /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
   VECTORS     : origin = 0x3FFFC2, length = 0x00003E     /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */

PAGE 1 :   /* Data Memory */
           /* Memory (RAM/FLASH/OTP) blocks CAN be moved to PAGE0 for program allocation */
           /* Registers remain on PAGE1                                                  */

   RAMM0       : origin = 0x000000, length = 0x000400     /* on-chip RAM block M0 */
   RAMM1       : origin = 0x000400, length = 0x000400     /* on-chip RAM block M1 */
   RAML1       : origin = 0x009000, length = 0x001000     /* on-chip RAM block L1 */
   FLASHB      : origin = 0x3F4000, length = 0x002000     /* on-chip FLASH */
   RAMH0       : origin = 0x3F8000, length = 0x002000     /* on-chip RAM block H0 */
}

/* Allocate sections to memory blocks.
   Note:
         codestart user defined section in DSP28_CodeStartBranch.asm used to redirect code
                   execution when booting to flash
         ramfuncs  user defined section to store functions that will be copied from Flash into RAM
*/

SECTIONS
{

   /* Allocate program areas: */
   .cinit              : > FLASHA      PAGE = 0
   .pinit              : > FLASHA,     PAGE = 0
   .text               : > FLASHA      PAGE = 0
   codestart           : > BEGIN       PAGE = 0
   ramfuncs            : LOAD = FLASHD,
                         RUN = RAML0,
                         LOAD_START(_RamfuncsLoadStart),
                         LOAD_END(_RamfuncsLoadEnd),
                         RUN_START(_RamfuncsRunStart),
                         PAGE = 0

   csmpasswds          : > CSM_PWL     PAGE = 0
   csm_rsvd            : > CSM_RSVD    PAGE = 0
   
   /* Allocate uninitalized data sections: */
   .stack              : > RAMM0       PAGE = 1
   .ebss               : > RAML1       PAGE = 1
   .esysmem            : > RAMH0       PAGE = 1

   /* Initalized sections go in Flash */
   /* For SDFlash to program these, they must be allocated to page 0 */
   .econst             : > FLASHA      PAGE = 0
   .switch             : > FLASHA      PAGE = 0      

   /* Allocate IQ math areas: */
   IQmath              : > FLASHC      PAGE = 0                  /* Math Code */
   IQmathTables        : > ROM         PAGE = 0, TYPE = NOLOAD   /* Math Tables In ROM */

   /* .reset is a standard section used by the compiler.  It contains the */
   /* the address of the start of _c_int00 for C Code.   /*
   /* When using the boot ROM this section and the CPU vector */
   /* table is not needed.  Thus the default type is set here to  */
   /* DSECT  */
   .reset              : > RESET,      PAGE = 0, TYPE = DSECT
   vectors             : > VECTORS     PAGE = 0, TYPE = DSECT

}
答 5: 是否与跳线有关呢？ 答 6: 应该不是跳线的问题，要不代码短的时候也应该不行啊 答 7: lgz008和我的问题  lgz008的问题：我看你把flash分成了a,b,c,--j几个区，而你的代码只放在了A区，可用空间自然少了。 如下：

   .cinit              : > FLASHA      PAGE = 0
   .pinit              : > FLASHA,     PAGE = 0
   .text               : > FLASHA      PAGE = 0

还是请问我的第一个问题：
外部RAM的片选已经与Zone2和Zone6的管脚相连了：XZCS2和XZCS6AND7。通过CCS可以看到外部RAM的数据变化，只是程序代码不能load到RAM里运行，是甚末原因呢？
谢谢！ 答 8: ?? 答 9: ??? 答 10: 方针和烧写的MP/MC设置是不一样的