I'm using quartus9.1 to generate an scaler. I configured the scaler as following:turn off the Run-time control of image size input image width 300 intput image height 300 output image width 100 output image hight 100 parallel. other settings are default. If I test the scaler as described above(the control packet set the input format as:300*300), the circuit behaves normall. However,when I changed the input image size to 100*100 in the circuit using a control packet(I'm quite sure that the control packet format is correct) ,the scaler could not behave correctly.At the end of the simulation, the dout_startofpacket goes high and dout_endofpacket never goes high. What's the problem here?