Hi,

    We had link AFE7921 to my FPGA,but we receive somany error codes.So we want to run PRBS to debug.

But we write register 0x4141 to 0xEB,and write register 0x4084 to 0xEE ,and then write register 0x4084 to 0xCE. There some question below

But when we write register 0x4141 to 0xEB,and read this register is 0xEB,our FPGA had received is K code,all of data is BC,not the PRBS code. 

And we write register 0x4084 to 0xEE,but we read this register, the data is 0x40,and sometimes 0xC0 or 0x00，we write register 0x4084 to 0xCE，the data is also 0x40,and sometimes 0xC0 or 0x00.