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器件型号： TMS320F2800155-Q1
为什么使用仿真器进行调试时加密成功并且代码可以运行并已烧录到闪存中、但当第二次接通电源时、代码无法再运行？
注意：我的代码调试始终是使用 flash.cmd 完成的、这意味着我的代码不在 RAM 中、并且不会出现代码在断电时消失的情况。
同时、我已验证、即使未导入 DCSM 模块并且电源被切断、程序也可以正常运行。
我的相应配置如下所示
;----------------------------------------------------------------------
; Zone 1
;----------------------------------------------------------------------
.sect "dcsm_otp_z1_linkpointer"
.retain
.long 0x00003FE0
.long 0x00003FE0
.long 0x00003FE0
.retain
.long 0xFFFF0000 ;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 0xFFFFFFFF ;Z1OTP_CMACKEY0
;; .long 0xFFFFFFFF ;Z1OTP_CMACKEY1
;; .long 0xFFFFFFFF ;Z1OTP_CMACKEY2
;; .long 0xFFFFFFFF ;Z1OTP_CMACKEY3
;;
.sect "dcsm_otp_z1_pswdlock"
. .retain
.long 0xFB7FFFFF
.sect "dcsm_otp_z1_crclock"
.retain
.long 0x7FFFFFFF
;; .sect "dcsm_otp_z1_gpreg"
;; .retain
;; .long 0x5AFF1820 ;Z1OTP_GPREG1 = Z1_BOOTPIN
;; .long 0x5Affffff ;Z1OTP_GPREG2
;; .long 0x0A24040A ;Z1OTP_GPREG3 = Z1OTP_BOOTDEF_LOW
;; .long 0xFFFFFFFF ;Z1OTP_GPREG4 = Z1OTP_BOOTDEF_HIGH
.sect "dcsm_zsel_z1"
.retain
.long 0x12345678 ;Z1OTP_CSMPSWD0 (LSW of 128-bit password)
.long 0x17fFFFFF ;Z1OTP_CSMPSWD1
.long 0x12345678 ;Z1OTP_CSMPSWD2
.long 0x12345678 ;Z1OTP_CSMPSWD3 (MSW of 128-bit password)
.long 0x55555555 ;Z1OTP_GRABSECT1
.long 0x55555555 ;Z1OTP_GRABSECT2
.long 0x55555500 ;Z1OTP_GRABSECT3
..long 0x0000AAAA ;Z1OTP_GRABRAM1
.long 0xFFFFFFFF ;Reserved
.long 0xFFFFFFFF ;Reserved
.long 0xFFFF0000 ;Z1OTP_EXEONLYSECT1
.long 0x0000FFF0 ;Z1OTP_EXEONLYSECT2
.long 0x000000FF ;Z1OTP_EXEONLYRAM1
.long 0xFFFFFFFF ;Reserved
.long 0x12345678 ;Z1OTP_JTAGPSWDL0
.long 0x6f7fffff ;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 0x00003FE0
.long 0x00003FE0
.long 0x00003FE0
.sect "dcsm_rsvd_z2"
.retain
.long 0xFFFFFFFF ;Reserved
.sect "dcsm_otp_z2_pswdlock"
.retain
.long 0x1F7FFFFF
.sect "dcsm_otp_z2_crclock"
.retain
.long 0x3FFFFFFF
;; .sect "dcsm_otp_z2_gpreg"
;; .retain
;; .long 0x5AFFFFFF ;Z2OTP_GPREG1 = Z2_BOOTPIN
;; .long 0x5AFFFFff ;Z2OTP_GPREG2
;; .long 0xFFFFFF0A ;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 0x12345678 ;Z2OTP_CSMPSWD0 (LSW of 128-bit password)
.long 0x5bfFFFFF ;Z2OTP_CSMPSWD1
.long 0x12345678 ;Z2OTP_CSMPSWD2
.long 0x12345678 ;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
;----------------------------------------------------------------------
