Q:
DU teachers, I do costas loop with time to rewrite xilinx platform based on VHDL verilog, but how does not converge, the investigation did not find a problem for a long time, and now the project files are packaged together made up trouble you for taking the time to help me check, I really The reason can not be found.
A:
Hello there. A digital filter, the synchronous communication, modem three books are examples of the Costas loop. There Altlera / Verilog version of the book. CXD301 development board supporting data while providing a part of the program vhdl / Verilog version of the program, optional learning website.
Limited time and energy reasons, I do not have much time looking for problems on the code for everyone, but please understand.
Congratulation funny!
DU Yong.