CCS/PROCESSOR-SDK-DRA8X-TDA4X: how to use _TSC_read()

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

Tool/software: Code Composer Studio

Hi  :

         i    have    run    dmautils_autoinc_1d2d3d_test     successfully。

       i    am   try   to  test   Cycles   used  by     blockCopy.     i  find    in   the  code   _TSC_read()   to  test   it   .

     but       "dmautils_autoinc_1d2d3d_test.c", line 269: error #225-D: function "_TSC_read" declared implicitly
     how  can   i  solve   it  ?

Thanks!

Shuai