how to handle lockup state in M33

Dear Developers,

I am trying to run FreeRTOS on MPS2 plus board for CM33.

but xPortStartScheduler fails and gets stuck at SecureHandler(Lockup addr PC: 0xEFFFFFFE).

It fails when trying to start the vStartFirstTask.

below is scatter loader file content

LR_IROM1 0x00000000 0x40000000


       ER_IROM1 0x00000000 0x00200000

       { 
             *.o (RESET, +First)
             *(InRoot$$Sections)
             .ANY (+RO)
             .ANY (+XO)
       }
       RW_IRAM1 0x20000000 UNINIT 0x00200000

      {
          .ANY (+RW +ZI)
      }
      ARM_LIB_STACK (0x38200000) 0x600
      {    
            *(EMPTY)
      }  
      ARM_LIB_HEAP (0x38200000+0x600) 0xC00
     {
          *(EMPTY)
     }
}

please help me to resolve this issue.

Thanks,

Deepak

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