F28377S用DCSM加密后无法解密

jokerhuang

Prodigy 250 points

Other Parts Discussed in Thread: UNIFLASH

我尝试了加密后觉得加密不是很好用，又想解密了，但是怎么都不成功。

一、在ccs--On-Chip Flash里面点击解密，然后擦除FLASH，重新烧写还是提示解密失败。

二、在ccs--On-Chip Flash里面点击解密，然后把密码都改成0xFFFFFFFF，点击Program Password，提示

我尝试了用uniFlash来解密，但还是一样的结果

请问，还有什么办法解密吗？

下面附上dcsm的两个文件和cmd

// DCSM_Z1_ZoneSelectBlock.asm

      .sect "dcsm_otp_z1_linkpointer"
;;    .long 0x1FFFFFFF     ;Z1-LINKPOINTER1
;;    .long 0xFFFFFFFF     ;Reserved
;;    .long 0x1FFFFFFF     ;Z1-LINKPOINTER2
;;    .long 0xFFFFFFFF     ;Reserved
;;    .long 0x1FFFFFFF     ;Z1-LINKPOINTER3
;;    .long 0xFFFFFFFF     ;Reserved

      .sect "dcsm_otp_z1_pswdlock"
    .long 0xFFFFFFFF     ;Z1-PSWDLOCK ; ERIC: 0xFFFFFFF0 LOCK PASSWORD
    .long 0xFFFFFFFF     ;Reserved

      .sect "dcsm_otp_z1_crclock"
    .long 0xFFFFFFF0     ;Z1-CRCLOCK
    .long 0xFFFFFFFF     ;Reserved

      .sect "dcsm_otp_z1_bootctrl"
;;    .long 0xFFFFFFFF     ;Reserved
;;    .long 0xFFFFFFFF     ;Z1-BOOTCTRL

      .sect "dcsm_zsel_z1"

    .long 0xFFFFFFFF      ;Z1-EXEONLYRAM
    .long 0xFFFFFFFF      ;Z1-EXEONLYSECT
    .long 0xFFFFFFFF      ;Z1-GRABRAM
    .long 0x3AAAAAAA      ;Z1-GRABSECT

    .long 0xFFFFFFFF      ;Z1-CSMPSWD0 (LSW of 128-bit password)
    .long 0xFFFFFFFF      ;Z1-CSMPSWD1
    .long 0xFFFFFFFF      ;Z1-CSMPSWD2
    .long 0x12345678      ;Z1-CSMPSWD3 (MSW of 128-bit password)

// DCSM_Z2_ZoneSelectBlock.asm

      .sect "dcsm_otp_z2_linkpointer"
;;    .long 0x1FFFFFFF     ;Z2-LINKPOINTER1
;;    .long 0xFFFFFFFF     ;Reserved
;;    .long 0x1FFFFFFF     ;Z2-LINKPOINTER2
;;    .long 0xFFFFFFFF     ;Reserved
;;    .long 0x1FFFFFFF     ;Z2-LINKPOINTER3
;;    .long 0xFFFFFFFF     ;Reserved

      .sect "dcsm_otp_z2_pswdlock"
;;    .long 0xFFFFFFFF     ;Z2-PSWDLOCK
;;    .long 0xFFFFFFFF     ;Reserved

      .sect "dcsm_otp_z2_crclock"
;;    .long 0xFFFFFFFF     ;Z2-CRCLOCK
;;    .long 0xFFFFFFFF     ;Reserved

      .sect "dcsm_otp_z2_bootctrl"
;;    .long 0xFFFFFFFF     ;Reserved
;;    .long 0xFFFFFFFF     ;Z2-BOOTCTRL

      .sect "dcsm_zsel_z2"
;;    .long 0xFFFFFFFF      ;Z2-EXEONLYRAM
;;    .long 0xFFFFFFFF      ;Z2-EXEONLYSECT
;;    .long 0xFFFFFFFF      ;Z2-GRABRAM
;;    .long 0xFFFFFFFF      ;Z2-GRABSECT

;;    .long 0xFFFFFFFF      ;Z2-CSMPSWD0 (LSW of 128-bit password)
;;    .long 0xFFFFFFFF      ;Z2-CSMPSWD1
;;    .long 0xFFFFFFFF      ;Z2-CSMPSWD2
;;    .long 0xFFFFFFFF      ;Z2-CSMPSWD3 (MSW of 128-bit password)

// 2837xD_dcsm_lnk_cpu1.cmd

MEMORY
{
PAGE 0 :  /* Program Memory */

   /* Z1 OTP.  LinkPointers */
   DCSM_OTP_Z1_LINKPOINTER   : origin = 0x78000, length = 0x00000C
   /* 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

}

SECTIONS
{
   dcsm_otp_z1_linkpointer 	: > DCSM_OTP_Z1_LINKPOINTER		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_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
}

6 年多前