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verilog 数字模块练习2017.03.17// One-bit wide, N-bit long shift registermodule basic_shift_register #(parameter N=256)( input clk, enable, input sr_in, output sr_out); // Declare the shift

verilog 数字模块练习2017.03.17//Single port RAM with single read/write addressmodule single_port_ram#(parameter DATA_WIDTH = 8, parameter ADDR_WIDTH = 6)( input [(DATA_WIDTH-1):0] data, input [(

Error (169008): Can’t turn on open-drain option for differential I/O pin <pin name>Description如果一个设计有差分HSTL、SSTL和BLVDS I/O标准的双向管脚处于悬空状态，那么Quartus® II软件Fitter将产生错误。Workaround/Fix为了避免这个Fitter错误，需要将悬空的差分I