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DSP281x_CSMPasswords.asm
Package: TMS320F2812-EVM.rar [view]
Upload User: qingfan3
Upload Date: 2014-10-27
Package Size: 31439k
Code Size: 2k
Category:
DSP program
Development Platform:
C/C++
- ;//###########################################################################
- ;//
- ;// FILE: DSP281x_CSMPasswords.asm
- ;//
- ;// TITLE: DSP281x Code Security Module Passwords.
- ;//
- ;// DESCRIPTION:
- ;//
- ;// This file is used to specify password values to
- ;// program into the CSM password locations in Flash
- ;// at 0x3F7FF8 - 0x3F7FFF.
- ;//
- ;// In addition, the reserved locations 0x3F7F80 - 0X3f7ff5 are
- ;// all programmed to 0x0000
- ;//
- ;//###########################################################################
- ;//
- ;// Original source based on D.A.
- ;//
- ;// Ver | dd mmm yyyy | Who | Description of changes
- ;// =====|=============|======|===============================================
- ;// 1.00| 11 Sep 2003 | L.H. | Original Release
- ;//###########################################################################
- ; The "csmpasswords" section contains the actual CSM passwords that will be
- ; linked and programmed into to the CSM password locations (PWL) in flash.
- ; These passwords must be known in order to unlock the CSM module.
- ; All 0xFFFF's (erased) is the default value for the password locations (PWL).
- ; It is recommended that all passwords be left as 0xFFFF during code
- ; development. Passwords of 0xFFFF do not activate code security and dummy
- ; reads of the CSM PWL registers is all that is required to unlock the CSM.
- ; When code development is complete, modify the passwords to activate the
- ; code security module.
- .sect "csmpasswds"
- .int 0xFFFF ;PWL0 (LSW of 128-bit password)
- .int 0xFFFF ;PWL1
- .int 0xFFFF ;PWL2
- .int 0xFFFF ;PWL3
- .int 0xFFFF ;PWL4
- .int 0xFFFF ;PWL5
- .int 0xFFFF ;PWL6
- .int 0xFFFF ;PWL7 (MSW of 128-bit password)
- ;----------------------------------------------------------------------
- ; For code security operation, all addresses between 0x3F7F80 and
- ; 0X3f7ff5 cannot be used as program code or data. These locations
- ; must be programmed to 0x0000 when the code security password locations
- ; (PWL) are programmed. If security is not a concern, then these addresses
- ; can be used for code or data.
- ; The section "csm_rsvd" can be used to program these locations to 0x0000.
- .sect "csm_rsvd"
- .loop (3F7FF5h - 3F7F80h + 1)
- .int 0x0000
- .endloop
- ;----------------------------------------------------------------------