Help me in FIR Verilog code

elec_eng92 · Aug 16, 2016

hello

i am doing a verilog project that design a FIR filter.

i generate sin & cos waves with cordic algorithm and apply it to FIR fiter.

i am not sure about response.

this is the code of fir filter:

Code Verilog - [expand]
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module FIR_filter(input signed [15:0]x, input clk, output reg signed [31:0]yn);
 
reg signed [15:0] xn[4:0];
wire signed [31:0]v;
 
wire signed [15:0] h0=16'h0325;
wire signed [15:0] h1=16'h1e00;
wire signed [15:0] h2=16'h3DB6;
wire signed [15:0] h3=16'h1e00;
wire signed [15:0] h4=16'h0325;
 
assign v=(h0*xn[0]+h1*xn[1]+h2*xn[2]+h3*xn[3]+h4*xn[4]);
 
always@ (posedge clk)
begin
 
xn[0]<=x;
xn[1]<=x[0];
xn[2]<=x[1];
xn[3]<=x[2];
xn[4]<=x[3];
 
yn <= v;
 
end
endmodule

Youtf is the out of filter and Xout & Yout is out of cordic module.

is the output correct? why?

can anyone help me? I am really cofused!

thanks

Help me in FIR Verilog code

elec_eng92

Newbie level 1

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Help me in FIR Verilog code

elec_eng92

Newbie level 1

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