TMS320F2800137: DCSM加密，烧写报错

shuai Huang

Prodigy 20 points

Part Number: TMS320F2800137
Other Parts Discussed in Thread: SYSCONFIG

当我在c2000.syscfg中加入DCSM，未做其他操作。

再次烧写程序，会报如下错误。

当我从c2000.syscfg去掉DCSM，就能正常烧写，

请问一下，该如何解决。

2 年多前

0 Yale Li 李耀先 2 年多前

TI__Guru 65745 points

直接添加DCSM支持后，DCSM中的配置都是默认配置。

试着根据需求修改之后再尝试烧录。

建议对DCSM有一定了解之后，再使能并配置DCSM。

0 shuai Huang 2 年多前回复 Yale Li 李耀先

Prodigy 20 points

您好，加入DCSM后，密码为默认配置，也并未选择安全区，所有区域配置的都是Unsecure。为什么烧写会失败？

0 Yale Li 李耀先 2 年多前回复 shuai Huang

TI__Guru 65745 points

DCSM部分都是OTP(One Time Programable)Flash，因为和初始值没有任何的变化，所以会烧录失败（这个只是我的推测，因为DCSM部分的实验我只做过一部分，因为太废片子了）。

DCSM设计了LinkerPointer机制，其中的一个原因就是可以重新配置不同的加密配置。

你可以先试一下不改变LinkerPointer的情况下，更改密码再烧录试一下；之后将Linker Pointer指向下一个ZSB，并更改相应的密码，进行实验。

更改了密码之后，便使能了相应的加密功能，相应的RAM和FLASH也要进行分配。

0 Barbecue 2 年多前回复 shuai Huang

Expert 1550 points

将SYSCONFIG自动生成的DCSM.asm文件贴出来看一下

0 shuai Huang 2 年多前回复 Barbecue

Prodigy 20 points

;----------------------------------------------------------------------
; Zone 1
;----------------------------------------------------------------------
     .sect "dcsm_otp_z1_linkpointer"
      .retain
      .long 0x00003FFE
      .long 0x00003FFE
      .long 0x00003FFE
    
     .sect "dcsm_otp_z1_jlm_enable"
      .retain
      .long 0xFFFF000F     ;Z1OTP_JLM_ENABLE
;;     .sect "dcsm_otp_z1_jtag_pswdh"
;;      .retain
;;      .long 0x4BFFFFFF     ;Z1OTP_JTAGPSWDH0
;;      .long 0x3FFFFFFF     ;Z1OTP_JTAGPSWDH1
;;
;;     .sect "dcsm_otp_z1_cmac_key"
;;      .retain
;;      .long 0x00000000     ;Z1OTP_CMACKEY0
;;      .long 0x00000000     ;Z1OTP_CMACKEY1
;;      .long 0x00000000     ;Z1OTP_CMACKEY2
;;      .long 0x00000000     ;Z1OTP_CMACKEY3
;;  
     .sect "dcsm_otp_z1_pswdlock"
      .retain
      .long 0xFB7FFFFF
      
     .sect "dcsm_otp_z1_crclock_rsvd"
      .retain
      .long 0x7FFFFFFF     ;Reserved
  
;;     .sect "dcsm_otp_z1_gpreg"
;;      .retain
;;      .long 0x5AFF1820     ;Z1OTP_GPREG1 = Z1_BOOTPIN
;;      .long 0x5AFFFFff     ;Z1OTP_GPREG2
;;      .long 0x00000000     ;Z1OTP_GPREG3 = Z1OTP_BOOTDEF_LOW
;;      .long 0xFFFFFFFF     ;Z1OTP_GPREG4 = Z1OTP_BOOTDEF_HIGH
     .sect "dcsm_zsel_z1"
      .retain
      .long 0xFFFFFFFF     ;Z1OTP_CSMPSWD0 (LSW of 128-bit password)
      .long 0x4D7FFFFF     ;Z1OTP_CSMPSWD1
      .long 0xFFFFFFFF     ;Z1OTP_CSMPSWD2
      .long 0xFFFFFFFF     ;Z1OTP_CSMPSWD3 (MSW of 128-bit password)
 
      .long 0xAAAAAAAA     ;Z1OTP_GRABSECT1
      .long 0xAAAA5555     ;Z1OTP_GRABSECT2
      .long 0xAAAAAA00     ;Z1OTP_GRABSECT3
      .long 0x0000AAAA     ;Z1OTP_GRABRAM1
      .long 0xFFFFFFFF     ;Reserved
      .long 0xFFFFFFFF     ;Reserved
 
      .long 0xFFFFFFFF     ;Z1OTP_EXEONLYSECT1
      .long 0x0000FFF0     ;Z1OTP_EXEONLYSECT2
      .long 0x000000FF     ;Z1OTP_EXEONLYRAM1
      .long 0xFFFFFFFF     ;Reserved
      .long 0xFFFFFFFF     ;Z1OTP_JTAGPSWDL0
      .long 0x27FFFFFF     ;Z1OTP_JTAGPSWDL1    


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

; 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 0x00003FFF
      .long 0x00003FFF
      .long 0x00003FFF

     .sect "dcsm_rsvd_z2"
      .retain
      .long 0xFFFFFFFF     ;Reserved
     .sect "dcsm_otp_z2_pswdlock"
      .retain
      .long 0x1F7FFFFF
      
     .sect "dcsm_otp_z2_crclock_rsvd"
      .retain
      .long 0x3FFFFFFF     ;Reserved
            
;;     .sect "dcsm_otp_z2_gpreg"
;;      .retain
;;      .long 0x5AFF1820     ;Z2OTP_GPREG1 = Z2_BOOTPIN
;;      .long 0x5AFFFFff     ;Z2OTP_GPREG2
;;      .long 0x00000000     ;Z2OTP_GPREG3 = Z2OTP_BOOTDEF_LOW
;;      .long 0xFFFFFFFF     ;Z2OTP_GPREG4 = Z2OTP_BOOTDEF_HIGH
     .sect "dcsm_rsvd1_z2"
      .retain
      .long 0xFFFFFFFF     ;Reserved
      .long 0xFFFFFFFF     ;Reserved

     .sect "dcsm_zsel_z2"
      .retain
      .long 0xFFFFFFFF     ;Z2OTP_CSMPSWD0 (LSW of 128-bit password)
      .long 0x1F7FFFFF     ;Z2OTP_CSMPSWD1
      .long 0xFFFFFFFF     ;Z2OTP_CSMPSWD2
      .long 0xFFFFFFFF     ;Z2OTP_CSMPSWD3 (MSW of 128-bit password)
 
      .long 0xAAAAAAAA     ;Z2OTP_GRABSECT1
      .long 0xAAAAAAAA     ;Z2OTP_GRABSECT2
      .long 0xAAAAAA00     ;Z2OTP_GRABSECT3
      .long 0x0000AAAA     ;Z2OTP_GRABRAM1
      .long 0xFFFFFFFF     ;Reserved
      .long 0xFFFFFFFF     ;Reserved
 
      .long 0xFFFFFFFF     ;Z2OTP_EXEONLYSECT1
      .long 0x0000FFF0     ;Z2OTP_EXEONLYSECT2
      .long 0x000000FF     ;Z2OTP_EXEONLYRAM1
      .long 0xFFFFFFFF     ;Reserved
      .long 0xFFFFFFFF     ;Reserved
      .long 0xFFFFFFFF     ;Reserved


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

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