CCS/TMS320F28075: flash write problem

Part Number: TMS320F28075
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

dear support team:

   I can write flash data in the state of online debugging, and I can see that the 0xA2000 address data is 0xAA, 0xBB, 0xCC, 0xDD, but in the case of firmware programming, the flash cannot write data, and you can see that the 0xA2000 address data is FF. FF,FF,FF,code show as below：

         Uint16 _nBuffer[6] = {4,0,0xAA,0xBB,0xCC,0xDD};

         Flash_Init();

         Flash_Erase(0xA2000);

        Flash_Write(0xA2000, _nBuffer);