[参考译文] TMS320F280049C：TMS320F280049C 器件解锁问题

其它程序工作成功。 我已附上与代码安全模块相关的部分代码。  

//****************************************************************
//  Interface Function: PRG_unlock()
//
// Unlock the Code Security Module.
//
// Parameters:
//
// Return Value:
//
// Notes:
//-------------------------------------------------------------------

#pragma CODE_SECTION(PRG_unlock,"FlashBoot");

void PRG_unlock(void)
{
    volatile  Uint32 temp;
    volatile Uint32 *CSMPWL = (volatile Uint32 *)0x78028; //CSM Password location

    // Read the 128-bits of the CSM password locations (PWL)

    temp = *CSMPWL++;
    temp = *CSMPWL++;
    temp = *CSMPWL++;
    temp = *CSMPWL++;

    // Write the 128-bit password to the CSMKEY registers
    // If this password matches that stored in the
    // CSLPWL then the CSM will become unsecure. If it does not
    // match, then the zone will remain secure.

    DcsmBank0Z1Regs.Z1_CSMKEY0 = 0xFFFF55AA;//0xFFFFFFFF;//
    DcsmBank0Z1Regs.Z1_CSMKEY1 = 0x47FFAA55;//0xFFFFFFFF;//
    DcsmBank0Z1Regs.Z1_CSMKEY2 = 0xFFFF5A5A;//0xFFFFFFFF;//
    DcsmBank0Z1Regs.Z1_CSMKEY3 = 0xFFFFA5A5;//0xFFFFFFFF;//
}