Simple MegaCore FFT Simulink Model

I have build a simple simulink model using MegaCore FFT bolck. I gave the following inputs to the fft megacore block.

      reset_n      : 1
      inverse      : 0
      sink_valid   : 1
      sink_sop     : counter counts 0 to 127, if count ==0 then sink_sop =1
      sink_eop     : counter counts 0 to 127, if count ==127 then sink_eop =1
      sink_real    : unsigned 8 bit value
      sink_imag    : unsigned 8 bit value (0)
      sink_error   : 2 bit (00) no error
      source_ready : 1

unfortunately no output.....:cry: What is the mistake I have done?

here is the simulink model.

https://alteraforum.com/forum/attachment.php?attachmentid=14306&stc=1

Waveform input according to the above mentioned order

https://alteraforum.com/forum/attachment.php?attachmentid=14307&stc=1

Simulink mdl file also attached with the post.