TMS320F280023C: F28002X 如何使用DCSM加密？使用Flash模式，如何在280023_FLASH_lnk.cmd 添加相关的CMD文件？

Huit Wu

Prodigy 200 points

Part Number: TMS320F280023C

Dear All：

尝试使用F28002X 的DCSM对程序加密，TI FAE的那个使用DCSM相关的使用也看了，F2800X的 dcsm_security_tool列程也看过了，

都没说清楚，如何在如何在28002X_FLASH_lnk.cmd 添加相关DSCM的CMD文件？

根据F2800X的 dcsm_security_tool的列程，在工程中添加了dcsm.asm程序：

Fullscreen

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
;----------------------------------------------------------------------
; Zone 1
;----------------------------------------------------------------------
     .sect "dcsm_otp_z1_linkpointer"
      .retain
      .long 0x1FFFFFFF       ;Z1-LINKPOINTER1
      .long 0xFFFFFFFF       ;Reserved
      .long 0x1FFFFFFF       ;B0_Z1OTP_LINKPOINTER2
      .long 0xFFFFFFFF       ;Reserved
      .long 0x1FFFFFFF       ;B0_Z1OTP_LINKPOINTER3
      .long 0xFFFFFFFF       ;Reserved
     .sect "dcsm_otp_z1_pswdlock"
      .retain
      .long 0xFB7FFFFF       ;Z1-PSWDLOCK
      .long 0x7FFFFFFF       ;Reserved
     .sect "dcsm_otp_z1_crclock"
      .retain
      .long 0x4BFFFFFF       ;Z1-CRCLOCK
      .long 0x3FFFFFFF       ;Reserved
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

;----------------------------------------------------------------------
; Zone 1
;----------------------------------------------------------------------
     .sect "dcsm_otp_z1_linkpointer"
      .retain
      .long 0x1FFFFFFF       ;Z1-LINKPOINTER1
      .long 0xFFFFFFFF       ;Reserved
      .long 0x1FFFFFFF       ;B0_Z1OTP_LINKPOINTER2
      .long 0xFFFFFFFF       ;Reserved
      .long 0x1FFFFFFF       ;B0_Z1OTP_LINKPOINTER3
      .long 0xFFFFFFFF       ;Reserved

     .sect "dcsm_otp_z1_pswdlock"
      .retain
      .long 0xFB7FFFFF       ;Z1-PSWDLOCK
      .long 0x7FFFFFFF       ;Reserved

     .sect "dcsm_otp_z1_crclock"
      .retain
      .long 0x4BFFFFFF       ;Z1-CRCLOCK
      .long 0x3FFFFFFF       ;Reserved

;;     .sect "dcsm_otp_z1_gpreg"
;;      .retain
;;      .long 0x5AFF1921     ;Z1OTP_BOOTPIN_CONFIG
;;      .long 0x5AFFFFff     ;Z1OTP_GPREG2
;;     .sect "dcsm_otp_z1_bootctrl"
;;      .retain
;;      .long 0x00000000     ;Z1OTP_BOOTDEF_LOW
;;      .long 0xFFFFFFFF     ;Z1OTP_BOOTDEF_HIGH

     .sect "dcsm_zsel_z1"
      .retain
      .long 0x000000F0       ;Z1-EXEONLYRAM
      .long 0x0000FFFF       ;Z1-EXEONLYSECT
      .long 0x0000AA00       ;Z1-GRABRAM
      .long 0xAAAAAAAA       ;Z1-GRABSECT

      .long 0xFFFFFFFF       ;Z1-CSMPSWD0 (LSW of 128-bit password)
      .long 0x47FFFFFF       ;Z1-CSMPSWD1 // this value is for ZSB0
      .long 0xFFFFFFFF       ;Z1-CSMPSWD2
      .long 0xFFFFFFFF       ;Z1-CSMPSWD3 (MSW of 128-bit password)


;----------------------------------------------------------------------

; For code security operation,after development has completed, prior to
; production, all other zone select block locations should be programmed
; to 0x0000 for maximum security.
; If the first zone select block at offset 0x10 is used, the section
; "dcsm_rsvd_z1" can be used to program these locations to 0x0000.
; This code is commented out for development.

;       .sect "dcsm_rsvd_z1"
;        .loop (1e0h)
;              .int 0x0000
;        .endloop


;----------------------------------------------------------------------
; Zone 2
;----------------------------------------------------------------------
     .sect "dcsm_otp_z2_linkpointer"
      .retain
      .long 0x1FFFFFFF     ;B0_Z2OTP_LINKPOINTER1
      .long 0xFFFFFFFF     ;Reserved
      .long 0x1FFFFFFF     ;B0_Z2OTP_LINKPOINTER2
      .long 0xFFFFFFFF     ;Reserved
      .long 0x1FFFFFFF     ;B0_Z2OTP_LINKPOINTER3
      .long 0xFFFFFFFF     ;Reserved

     .sect "dcsm_otp_z2_pswdlock"
      .retain
      .long 0xBF7FFFFF     ;Z2-PSWDLOCK
      .long 0x77FFFFFF     ;Reserved

     .sect "dcsm_otp_z2_crclock"
      .retain
      .long 0x0FFFFFFF     ;Z2-CRCLOCK
      .long 0x37FFFFFF     ;Reserved

;;     .sect "dcsm_otp_z2_gpreg"
;;      .retain
;;      .long 0x5AFF1921     ;Z2OTP_BOOTPIN_CONFIG
;;      .long 0x5AFFFFff     ;Z2OTP_GPREG2
;;     .sect "dcsm_otp_z2_bootctrl"
;;      .retain
;;      .long 0x00000000     ;Z2OTP_BOOTDEF_LOW
;;      .long 0xFFFFFFFF     ;Z2OTP_BOOTDEF_HIGH

     .sect "dcsm_zsel_z2"
      .retain
      .long 0x000000F0       ;z2-EXEONLYRAM
      .long 0x0000FFFF       ;z2-EXEONLYSECT
      .long 0x0000AA00       ;z2-GRABRAM
      .long 0xAAAAAAAA       ;z2-GRABSECT

      .long 0xFFFFFFFF       ;B0_Z2OTP_CSMPSWD0 (LSW of 128-bit password)
      .long 0xE3FFFFFF       ;B0_Z2OTP_CSMPSWD1
      .long 0xFFFFFFFF       ;B0_Z2OTP_CSMPSWD2
      .long 0xFFFFFFFF       ;B0_Z2OTP_CSMPSWD3 (MSW of 128-bit password)


;----------------------------------------------------------------------

; For code security operation,after development has completed, prior to
; production, all other zone select block locations should be programmed
; to 0x0000 for maximum security.
; If the first zone select block at offset 0x10 is used, the section
; "dcsm_rsvd_z2" can be used to program these locations to 0x0000.
; This code is commented out for development.

;       .sect "dcsm_rsvd_z2"
;        .loop (1e0h)
;              .int 0x0000
;        .endloop


;----------------------------------------------------------------------
; End of file
;----------------------------------------------------------------------

F2800X的 dcsm_security_tool的列程中有相关的dcsm.cmd文件，如下图：

但是例程的28002X_generic_flash_lnk.cmd文件中没有如何相关DCSM的内容，说明DCSM的存储应该是dcsm.cmd文件的，

现在是如何把dcsm.cmd的内容移植到我的项目工程文件中？

方式1，直接把dcsm.cmd的内容复制到28002X_FLASH_lnk.cmd文件中，程序编译不通过！

Fullscreen

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
MEMORY
{
PAGE 0 :  /* Program Memory */
   /* Z1 OTP.  LinkPointers */
   DCSM_OTP_Z1_LINKPOINTER   : origin = 0x78000, length = 0x00000C
   /* Z1 OTP.  GPREG1/GPREG2 */
   DCSM_OTP_Z1_GPREG         : origin = 0x7800C, length = 0x000004
   /* Z1 OTP.  PSWDLOCK/RESERVED */
   DCSM_OTP_Z1_PSWDLOCK     : origin = 0x78010, length = 0x000004
   /* Z1 OTP.  CRCLOCK/RESERVED */
   DCSM_OTP_Z1_CRCLOCK      : origin = 0x78014, length = 0x000004
   /* Z1 OTP.  RESERVED/BOOTCTRL */
   DCSM_OTP_Z1_BOOTCTRL     : origin = 0x7801C, length = 0x000004
   /* DCSM Z1 Zone Select Contents (!!Movable!!) */
   /* Z1 OTP.  Z1 password locations / Flash and RAM partitioning */
   DCSM_ZSEL_Z1_P0          : origin = 0x78020, length = 0x000010
   /* Z2 OTP.  LinkPointers */
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

MEMORY
{

PAGE 0 :  /* Program Memory */

   /* Z1 OTP.  LinkPointers */
   DCSM_OTP_Z1_LINKPOINTER   : origin = 0x78000, length = 0x00000C
   /* Z1 OTP.  GPREG1/GPREG2 */
   DCSM_OTP_Z1_GPREG         : origin = 0x7800C, length = 0x000004
   /* Z1 OTP.  PSWDLOCK/RESERVED */
   DCSM_OTP_Z1_PSWDLOCK	    : origin = 0x78010, length = 0x000004
   /* Z1 OTP.  CRCLOCK/RESERVED */
   DCSM_OTP_Z1_CRCLOCK	    : origin = 0x78014, length = 0x000004
   /* Z1 OTP.  RESERVED/BOOTCTRL */
   DCSM_OTP_Z1_BOOTCTRL	    : origin = 0x7801C, length = 0x000004

   /* DCSM Z1 Zone Select Contents (!!Movable!!) */
   /* Z1 OTP.  Z1 password locations / Flash and RAM partitioning */
   DCSM_ZSEL_Z1_P0	        : origin = 0x78020, length = 0x000010

   /* Z2 OTP.  LinkPointers */
   DCSM_OTP_Z2_LINKPOINTER	: origin = 0x78200, length = 0x00000C
   /* Z2 OTP.  GPREG1/GPREG2 */
   DCSM_OTP_Z2_GPREG	        : origin = 0x7820C, length = 0x000004
   /* Z2 OTP.  PSWDLOCK/RESERVED */
   DCSM_OTP_Z2_PSWDLOCK	    : origin = 0x78210, length = 0x000004
   /* Z2 OTP.  CRCLOCK/RESERVED */
   DCSM_OTP_Z2_CRCLOCK	    : origin = 0x78214, length = 0x000004
   /* Z2 OTP.  GPREG3/BOOTCTRL */
   DCSM_OTP_Z2_BOOTCTRL	    : origin = 0x7821C, length = 0x000004

   /* DCSM Z1 Zone Select Contents (!!Movable!!) */
   /* Z2 OTP.  Z2 password locations / Flash and RAM partitioning  */
   DCSM_ZSEL_Z2_P0	        : origin = 0x78220, length = 0x000010



   BEGIN           	: origin = 0x080000, length = 0x000002
   BOOT_RSVD		: origin = 0x00000002, length = 0x00000126
   RAMM0           	: origin = 0x00000128, length = 0x000002D8
   RAMM1            : origin = 0x00000400, length = 0x000003F8     /* on-chip RAM block M1 */
// RAMM1_RSVD       : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

/* RAMLS4           : origin = 0x0000A000, length = 0x00000800
   RAMLS5           : origin = 0x0000A800, length = 0x00000800
   RAMLS6           : origin = 0x0000B000, length = 0x00000800
   RAMLS7           : origin = 0x0000B800, length = 0x00000800 */
   
   /* Combining all the LS RAMs */
   RAMLS4567        : origin = 0x0000A000, length = 0x00002400

   RAMGS0           : origin = 0x0000C400, length = 0x000003FC
// RAMGS0_RSVD      : origin = 0x0000C7F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

   RESET            : origin = 0x003FFFC0, length = 0x00000002


   BOOTROM          : origin = 0x003F0000, length = 0x00008000
   BOOTROM_EXT      : origin = 0x003F8000, length = 0x00007FC0

   /* Flash sectors */
   /* BANK 0 */
// FLASHBANK0        : origin = 0x00080000, length = 0x00007FF0
   FLASH_BANK0_SEC0  : origin = 0x080002, length = 0x000FFE	/* on-chip Flash */
   FLASH_BANK0_SEC1  : origin = 0x081000, length = 0x001000	/* on-chip Flash */
   FLASH_BANK0_SEC2  : origin = 0x082000, length = 0x001000	/* on-chip Flash */
   FLASH_BANK0_SEC3  : origin = 0x083000, length = 0x001000	/* on-chip Flash */
   FLASH_BANK0_SEC4  : origin = 0x084000, length = 0x001000	/* on-chip Flash */
   FLASH_BANK0_SEC5  : origin = 0x085000, length = 0x001000	/* on-chip Flash */
   FLASH_BANK0_SEC6  : origin = 0x086000, length = 0x001000	/* on-chip Flash */
   FLASH_BANK0_SEC7  : origin = 0x087000, length = 0x000FF0	/* on-chip Flash */
// FLASH_BANK0_SEC7_RSVD     : origin = 0x087FF0, length = 0x000010  /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

}


SECTIONS
{


   dcsm_otp_z1_linkpointer 	: > DCSM_OTP_Z1_LINKPOINTER		PAGE = 0
   dcsm_otp_z1_gpreg        : > DCSM_OTP_Z1_GPREG		    PAGE = 0
   dcsm_otp_z1_pswdlock		: > DCSM_OTP_Z1_PSWDLOCK		PAGE = 0
   dcsm_otp_z1_crclock		: > DCSM_OTP_Z1_CRCLOCK			PAGE = 0
   dcsm_otp_z1_bootctrl		: > DCSM_OTP_Z1_BOOTCTRL		PAGE = 0
   dcsm_zsel_z1				: > DCSM_ZSEL_Z1_P0				PAGE = 0

   dcsm_otp_z2_linkpointer	: > DCSM_OTP_Z2_LINKPOINTER		PAGE = 0
   dcsm_otp_z2_gpreg        : > DCSM_OTP_Z2_GPREG		    PAGE = 0
   dcsm_otp_z2_pswdlock		: > DCSM_OTP_Z2_PSWDLOCK		PAGE = 0
   dcsm_otp_z2_crclock		: > DCSM_OTP_Z2_CRCLOCK			PAGE = 0
   dcsm_otp_z2_bootctrl		: > DCSM_OTP_Z2_BOOTCTRL		PAGE = 0
   dcsm_zsel_z2				: > DCSM_ZSEL_Z2_P0				PAGE = 0



   codestart        : > BEGIN, ALIGN(8)
   .text            : >> FLASH_BANK0_SEC2 | FLASH_BANK0_SEC3 | FLASH_BANK0_SEC4| FLASH_BANK0_SEC5| FLASH_BANK0_SEC6| FLASH_BANK0_SEC7,   ALIGN(8)
   .cinit           : > FLASH_BANK0_SEC1,  ALIGN(8)
   .switch          : > FLASH_BANK0_SEC1,  ALIGN(8)
   .reset           : > RESET,                  TYPE = DSECT /* not used, */

   .stack           : > RAMM1

   .init_array      : > FLASH_BANK0_SEC1,  ALIGN(8)
   .bss             : > RAMLS4567
   .bss:output      : > RAMLS4567
   .bss:cio         : > RAMGS0
   .const           : > FLASH_BANK0_SEC1,  ALIGN(8)
   .data            : > RAMLS4567
   .sysmem          : > RAMLS4567

    ramgs0 : > RAMGS0

    /*  Allocate IQ math areas: */
   IQmath           : > RAMLS4567
   IQmathTables     : > RAMLS4567

  .TI.ramfunc      : LOAD = FLASH_BANK0_SEC1,
                  RUN = RAMGS0,
                  LOAD_START(RamfuncsLoadStart),
                  LOAD_SIZE(RamfuncsLoadSize),
                  LOAD_END(RamfuncsLoadEnd),
                  RUN_START(RamfuncsRunStart),
                  RUN_SIZE(RamfuncsRunSize),
                  RUN_END(RamfuncsRunEnd),
                  ALIGN(8)

}
/*
//===========================================================================
// End of file.
//===========================================================================
*/

方式2：直接添加dcsm.cmd文件到工程文件中，也是无法编译通过！

或者移植的dcsm.cmd的内容是否有错误？只要其中一部份？

如何具体操作？把DCSM加密功能实现？

这个问题已经困恼好几天，还是无法解决？

3 年多前

0 Cherry Zhou 3 年多前

TI__Guru* 81380 points

您好我们已收到您的问题并升级到英文论坛寻求帮助，如有答复将尽快回复您。谢谢！

0 Huit Wu 3 年多前回复 Cherry Zhou

Prodigy 200 points

老外的回复我看了，他说的就的意思好像就是把dcsm.asm 和cmd文件添加到我的工程文件即可，但是我原来就是这么操作的，添加DCSM cmd文件后就无法编译通过，我把我的工程文件做了一个测试例程，我把工程上传上来，让那个老外来帮忙改下，我看了关于DCSM的问题很多都是他来回答的？

@Cherry Zhou 你再帮忙翻译一下

非常感谢！

0 Cherry Zhou 3 年多前回复 Huit Wu

TI__Guru* 81380 points

好的，反馈给工程师了，您请耐心等待下答复。

0 Cherry Zhou 3 年多前回复 Cherry Zhou

TI__Guru* 81380 points

您好，看起来您同一个 cmd 文件用了两次，所以有该错误，您试下删除其中一个 DCSM.cmd 文件看看。工程师正在查看您的工程，有新的进展会给到您。

0 Huit Wu 3 年多前回复 Cherry Zhou

Prodigy 200 points

Dear Cherry Zhou ：

帮忙问下@Vivek Singh 目前测试的怎么样了？

核心问题就是dcsm.cmd文件如何和28002X_FLASH_lnk.cmd文件嵌入在一起，使程序能使用DCSM加密

非常感谢！

0 Cherry Zhou 3 年多前回复 Huit Wu

TI__Guru* 81380 points

好的跟进给工程师了哈，您这边有没有试过删除其中一个 DCSM.cmd 文件看看？

0 Huit Wu 3 年多前回复 Cherry Zhou

Prodigy 200 points

Dear Cherry Zhou ：

英文论坛回复了Vivek Singh出差去了，另外一个工程师回复说是不要让再上传测试工程文件。

还有如果我把dcsm.cmd删除了，那加密功能就失效了，没有把加密的内容存入相应的区域里。

0 Cherry Zhou 3 年多前回复 Huit Wu

TI__Guru* 81380 points

嗯嗯好的，我们会继续跟进您的问题，之后有新的进展会尽快跟进给您。您还请耐心等待下，给您带来的不便敬请谅解。

+1 Cherry Zhou 3 年多前回复 Cherry Zhou

TI__Guru* 81380 points

Dear，

Vivek说的删除cmd 文件是删除cmd文件中相同部分的冗余定义。现在已经使用了 DCSM.cmd，那您需要通过删除已经在 DCSM .cmd 中定义的相应部分来修改现有的 f28002x_headers_nonbios.cmd。工程师已修改了 f28002x_headers_nonbios.cmd，请查看以下文件(工程师测试过，现在可以编译)。您请替换掉项目中的文件，应该就可以清除出现的编译故障。

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/171/f28002x_5F00_headers_5F00_nonbios.zip

希望对您有所帮助。