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A wrong data when using ADIS16407 SPI Communication by FPGA

Question asked by on Feb 4, 2015
Latest reply on May 5, 2015 by NevadaMark

I am working with  FPGA tring to read ADIS16407,The type of the FPGA is EP4CE75F13C6 of  Cyclone IV E,But the output of the IMU is wrong,see as the below .I'm trying to access the  sensor data through single read mode and here is what I got:The output of the sixteen-bit data  is not correct  conversing with the DATASHEET.such as the voltage converter is only about 2v.                            


  And the data_out is 0 after 1200h see as the below.


My verilog program is as below,I am very appreciate for your help     Thank you very much able to see