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Cant intialise data value from data area readwrite

I have just started writing assembly code. I am using the simulator in Keil uvision5 to the run the code below. I dont understand why I can't see the src data value of 14 in register r1 when I ldr the data value from the address stored in the r0 register. I have tried to research the solution myself but cant find an exact reason why this happens. Any help would be gratefully appreciated.

  THUMB
  AREA RESET, CODE, READONLY
  EXPORT  __Vectors
  EXPORT Reset_Handler
__Vectors
  DCD 0x20001000
  DCD Reset_Handler

  AREA Code, CODE, READONLY
  ENTRY
Reset_Handler
        LDR     r0, =src
        LDR     r1, [r0]

terminate  ; sit in an endless loop
  B terminate

    ; data area that can be modified (readwrite)
  AREA Data, DATA, READWRITE
src     DCD     14
        END

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