Hi,
I would like to read binary data from a text file. Perform FIR filtering on the data and store the simulated result values in another text/mif file for further processing in Matlab. I used $readmemb function with verilog code in Quartus II. The following code seems to work.
module test(addr_a,addr_b,clk,q_a,q_b,c);
input [3:0] addr_a,addr_b;
input clk;
output [3:0] q_a,q_b;
output [7:0] c;
reg [7:0] c;
reg [3:0] q_a,q_b;
parameter data_width=4;
parameter addr_width=4;
reg[data_width-1:0] rom[2*addr_width-1:0];
initial
begin
$readmemb("script.txt",rom);
end
always@(posedge clk)
begin
q_a<=rom[addr_a];
q_b<=rom[addr_b];
c<=q_a+q_b;
end
endmodule
But instead if I use the following, my code does not work.
always@(posedge clk)
begin
x[0]<=rom[n];
n<=n+1;
temp<=x[0];
end
I don't want to use the address as input signal. I would like to use a counter to fetch the subsequent addresses. Could someone suggest me how to do that.
