v04-IIR based on IP core
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////////////////////////////////////////////////////////////////////////////////
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//
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// This confidential and proprietary software may be used only
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// as authorized by a licensing agreement from Synopsys Inc.
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// In the event of publication, the following notice is applicable:
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//
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// (C) COPYRIGHT 1995 - 2018 SYNOPSYS INC.
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// ALL RIGHTS RESERVED
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//
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// The entire notice above must be reproduced on all authorized
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// copies.
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//
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// AUTHOR: KB May 20, 1995
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//
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// VERSION: Verilog Simulation Model for DW_iir_dc
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//
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// DesignWare_version: 10b10551
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// DesignWare_release: O-2018.06-DWBB_201806.1
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//
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////////////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------------------
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//
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// ABSTRACT: Verilog simulation model for IIR filter with dynamic coefficients
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//
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// MODIFIED:
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// Doug Lee 06/02/2008
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// Fix for STAR#9000245949
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// data_out and saturation results were wrong
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// compared to synthetic and VHDL simulation
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// models in a specific negative number
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// boundary case. Re-wrote rounding/saturation
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// function to resemble VHDL simulation model
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// approach.
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//
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// Zhijun (Jerry) Huang 02/12/2004
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// Changed interface names
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// Added parameter legality check
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// Added asynchronous reset signal rst_n
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// Added optional output register controlled by parameter out_reg
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// Added X-processing
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// Fixed verilog analysis warning about zero multiconcat multiplier
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// Fixed verilog analysis error about negative array index
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// Fixed logic errors with saturation and negative/positive handling
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// Fixed logic errors with feedback_data when feedback_width > data_out_width
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//
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//-----------------------------------------------------------------------------------
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module DW_iir_dc(clk,rst_n,init_n,enable,
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A1_coef,A2_coef,B0_coef,B1_coef,B2_coef,
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data_in,data_out,saturation);
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parameter integer data_in_width = 8;
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parameter integer data_out_width = 16;
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parameter integer frac_data_out_width = 4;
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parameter integer feedback_width = 12;
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parameter integer max_coef_width = 8;
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parameter integer frac_coef_width = 4;
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parameter integer saturation_mode = 0;
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parameter integer out_reg = 1;
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input clk,rst_n,init_n,enable;
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input [max_coef_width-1:0] A1_coef,A2_coef,B0_coef,B1_coef,B2_coef;
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input [data_in_width-1:0] data_in;
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output [data_out_width-1:0] data_out;
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output saturation;
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parameter integer psum_width = (feedback_width-frac_data_out_width > data_in_width)?
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feedback_width+max_coef_width+3
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: data_in_width+frac_data_out_width+max_coef_width+3;
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// synopsys translate_off
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function [feedback_width+data_out_width:0] rnd_sat;
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input [psum_width-1:0] psum0;
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reg signed [psum_width:0] psum0_shiftedby1;
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reg signed [data_out_width-1:0] data_out_noreg;
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reg signed [feedback_width-1:0] feedback_data;
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reg signed [frac_coef_width:0] round_limit;
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reg signed [frac_coef_width-1:0] psum0_frac_part;
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reg signed [data_out_width-1:0] max_pos_output;
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reg signed [data_out_width-1:0] max_neg_output;
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reg signed [feedback_width-1:0] max_pos_feedback;
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reg signed [feedback_width-1:0] max_neg_feedback;
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reg signed [data_out_width-1:0] output_inc_data;
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reg signed [feedback_width-1:0] feedback_inc_data;
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reg output_to_big;
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reg feedback_to_big;
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reg saturation_internal;
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integer i, j, k, l;
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begin
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for (i=0; i<data_out_width; i=i+1) begin
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if (i == data_out_width-1)
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max_pos_output[i] = 0;
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else
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max_pos_output[i] = 1;
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end
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for (j=0; j<data_out_width; j=j+1) begin
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if (j == data_out_width-1)
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max_neg_output[j] = 1;
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else if (j == 0)
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if (saturation_mode == 0)
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max_neg_output[j] = 0;
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else
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max_neg_output[j] = 1;
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else
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max_neg_output[j] = 0;
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end
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for (k=0; k<feedback_width; k=k+1) begin
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if (k == feedback_width-1)
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max_pos_feedback[k] = 0;
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else
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max_pos_feedback[k] = 1;
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end
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for (l=0; l<feedback_width; l=l+1) begin
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if (l == feedback_width-1)
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max_neg_feedback[l] = 1;
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else if (l == 0)
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if (saturation_mode == 0)
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max_neg_feedback[l] = 0;
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else
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max_neg_feedback[l] = 1;
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else
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max_neg_feedback[l] = 0;
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end
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// round_limit = -2^(frac_coef_width-1)
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for (i=0; i<=frac_coef_width; i=i+1) begin
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if (i == frac_coef_width)
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round_limit[i] = 1;
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else if (i == frac_coef_width-1)
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round_limit[i] = 1;
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else
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round_limit[i] = 0;
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end
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if (frac_coef_width > 0) begin
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psum0_shiftedby1 = psum0 << 1;
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// Break out the frac_coef portion of psum0
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for (i=0; i<frac_coef_width; i=i+1) begin
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psum0_frac_part[i] = psum0[i];
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end
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if ($signed(psum0_shiftedby1[psum_width:frac_coef_width]) >= $signed({max_pos_output, 1'b1})) begin
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data_out_noreg = max_pos_output;
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output_to_big = 1;
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end else begin
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if ($signed(psum0_shiftedby1[psum_width:frac_coef_width+1]) < $signed(max_neg_output)) begin
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data_out_noreg = max_neg_output;
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output_to_big = 1;
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end else begin
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if (psum0_shiftedby1[frac_coef_width] &&
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(!psum0_shiftedby1[psum_width] || (($signed(psum0_frac_part)) > $signed(round_limit)))) begin
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output_inc_data = psum0[data_out_width+frac_coef_width-1:frac_coef_width] + 1;
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data_out_noreg = output_inc_data;
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output_to_big = 0;
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end else begin
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data_out_noreg = psum0[data_out_width+frac_coef_width-1:frac_coef_width];
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output_to_big = 0;
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end
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end
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end
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if ($signed(psum0_shiftedby1[psum_width:frac_coef_width]) >= $signed({max_pos_feedback, 1'b1})) begin
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feedback_data = max_pos_feedback;
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feedback_to_big = 1;
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end else begin
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if ($signed(psum0_shiftedby1[psum_width:frac_coef_width+1]) < $signed(max_neg_feedback)) begin
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feedback_data = max_neg_feedback;
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feedback_to_big = 1;
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end else begin
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if (psum0_shiftedby1[frac_coef_width] &&
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(!psum0_shiftedby1[psum_width] || (($signed(psum0_frac_part)) > $signed(round_limit)))) begin
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feedback_inc_data = psum0[feedback_width+frac_coef_width-1:frac_coef_width] + 1;
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feedback_data = feedback_inc_data;
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feedback_to_big = 0;
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end else begin
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feedback_data = psum0[feedback_width+frac_coef_width-1:frac_coef_width];
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feedback_to_big = 0;
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end
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end
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end
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end else begin
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if ($signed(psum0) > $signed(max_pos_output)) begin
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data_out_noreg = max_pos_output;
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output_to_big = 1;
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end else begin
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if ($signed(psum0) < $signed(max_neg_output)) begin
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data_out_noreg = max_neg_output;
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output_to_big = 1;
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end else begin
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data_out_noreg = psum0[data_out_width-1:0];
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output_to_big = 0;
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end
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end
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if ($signed(psum0) > $signed(max_pos_feedback)) begin
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feedback_data = max_pos_feedback;
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feedback_to_big = 1;
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end else begin
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if ($signed(psum0) < $signed(max_neg_feedback)) begin
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feedback_data = max_neg_feedback;
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feedback_to_big = 1;
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end else begin
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feedback_data = psum0[feedback_width-1:0];
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feedback_to_big = 0;
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end
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end
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end
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saturation_internal = output_to_big || feedback_to_big;
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rnd_sat = {saturation_internal, feedback_data, data_out_noreg};
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end
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endfunction
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wire [data_in_width-1:0] gated_data_in;
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wire [feedback_width-1:0] feedback_data;
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wire [max_coef_width-1:0] A1_coef_wire,A2_coef_wire,
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B0_coef_wire,B1_coef_wire,B2_coef_wire;
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wire [data_in_width+max_coef_width-1:0] B0_product,B1_product,B2_product;
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wire [feedback_width+max_coef_width-1:0] A1_product,A2_product;
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wire [psum_width-3:0] psum2;
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reg [psum_width-3:0] psum2_saved;
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wire [psum_width-1:0] psum1,psum0;
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reg [psum_width-1:0] psum1_saved;
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wire [data_out_width-1:0] data_out_internal;
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wire saturation_internal;
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reg [data_out_width-1:0] data_out_reg;
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reg saturation_reg;
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assign A1_coef_wire = A1_coef;
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assign A2_coef_wire = A2_coef;
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assign B0_coef_wire = B0_coef;
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assign B1_coef_wire = B1_coef;
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assign B2_coef_wire = B2_coef;
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assign gated_data_in = (init_n === 1'b0) ? {data_in_width{1'b0}} : data_in;
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DW02_mult #(data_in_width,max_coef_width) B0_mult(gated_data_in,B0_coef_wire,1'b1,B0_product);
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DW02_mult #(data_in_width,max_coef_width) B1_mult(gated_data_in,B1_coef_wire,1'b1,B1_product);
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DW02_mult #(data_in_width,max_coef_width) B2_mult(gated_data_in,B2_coef_wire,1'b1,B2_product);
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DW02_mult #(feedback_width,max_coef_width) A1_mult(feedback_data,A1_coef_wire,1'b1,A1_product);
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DW02_mult #(feedback_width,max_coef_width) A2_mult(feedback_data,A2_coef_wire,1'b1,A2_product);
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assign psum2 = ({{psum_width{B2_product[data_in_width+max_coef_width-1]}},
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B2_product[data_in_width+max_coef_width-2:0]} << frac_data_out_width)
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+ {{psum_width{A2_product[feedback_width+max_coef_width-1]}},
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A2_product[feedback_width+max_coef_width-2:0]};
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assign psum1 = ({{psum_width{B1_product[data_in_width+max_coef_width-1]}},
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B1_product[data_in_width+max_coef_width-2:0]} << frac_data_out_width)
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+ {{psum_width{A1_product[feedback_width+max_coef_width-1]}},
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A1_product[feedback_width+max_coef_width-2:0]}
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+ {{3{psum2_saved[psum_width-3]}},
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psum2_saved[psum_width-4:0]};
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assign psum0 = ({{psum_width{B0_product[data_in_width+max_coef_width-1]}},
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B0_product[data_in_width+max_coef_width-2:0]} << frac_data_out_width)
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+ psum1_saved;
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assign {saturation_internal,feedback_data,data_out_internal} = rnd_sat(psum0);
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always @ (posedge clk or negedge rst_n)
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if (rst_n === 1'b0) begin
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psum2_saved <= {psum_width-2{1'b0}};
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psum1_saved <= {psum_width{1'b0}};
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data_out_reg <= {data_out_width{1'b0}};
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saturation_reg <= 1'b0;
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end
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else if (rst_n === 1'b1) begin
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if ((^(init_n ^ init_n) !== 1'b0) || (^(enable ^ enable) !== 1'b0) ||
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(^(A2_coef ^ A2_coef) !== 1'b0) || (^(B0_coef ^ B0_coef) !== 1'b0) || (^(B2_coef ^ B2_coef) !== 1'b0) ||
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(^(data_in ^ data_in) !== 1'b0) || (^(psum1_saved ^ psum1_saved) !== 1'b0))
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psum2_saved <= {psum_width-2{1'bx}};
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else if (init_n === 1'b0)
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psum2_saved <= {psum_width-2{1'b0}};
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else if (enable === 1'b1)
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psum2_saved <= psum2;
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else
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psum2_saved <= psum2_saved;
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if ((^(init_n ^ init_n) !== 1'b0) || (^(enable ^ enable) !== 1'b0) ||
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(^(A1_coef ^ A1_coef) !== 1'b0) || (^(B0_coef ^ B0_coef) !== 1'b0) || (^(B1_coef ^ B1_coef) !== 1'b0) ||
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(^(data_in ^ data_in) !== 1'b0) || (^(psum2_saved ^ psum2_saved) !== 1'b0))
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psum1_saved <= {psum_width{1'bx}};
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else if (init_n === 1'b0)
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psum1_saved <= {psum_width{1'b0}};
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else if (enable === 1'b1)
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psum1_saved <= psum1;
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else
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psum1_saved <= psum1_saved;
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if ((^(init_n ^ init_n) !== 1'b0) || (^(enable ^ enable) !== 1'b0) || (^(B0_coef ^ B0_coef) !== 1'b0) ||
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(^(data_in ^ data_in) !== 1'b0) || (^(psum1_saved ^ psum1_saved) !== 1'b0)) begin
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data_out_reg <= {data_out_width{1'bx}};
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saturation_reg <= 1'bx;
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end
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else if (init_n === 1'b0) begin
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data_out_reg <= {data_out_width{1'b0}};
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saturation_reg <= 1'b0;
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end
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else if (enable === 1'b1) begin
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data_out_reg <= data_out_internal;
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saturation_reg <= saturation_internal;
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end
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else begin
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data_out_reg <= data_out_reg;
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saturation_reg <= saturation_reg;
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end
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end
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else begin
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psum2_saved <= {psum_width-2{1'bx}};
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psum1_saved <= {psum_width{1'bx}};
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data_out_reg <= {data_out_width{1'bx}};
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saturation_reg <= 1'bx;
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end
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assign data_out = (out_reg == 0) ? data_out_internal : data_out_reg;
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assign saturation = (out_reg == 0) ? saturation_internal : saturation_reg;
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//-------------------------------------------------------------------------
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// Parameter legality check
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//-------------------------------------------------------------------------
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initial begin : parameter_check
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integer param_err_flg;
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param_err_flg = 0;
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if (data_in_width < 2) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter data_in_width (lower bound: 2)",
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data_in_width );
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end
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if ( (data_out_width < 2) || (data_out_width > psum_width-frac_coef_width) ) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter data_out_width (legal range: 2 to psum_width-frac_coef_width)",
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data_out_width );
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end
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if ( (frac_data_out_width < 0) || (frac_data_out_width > data_out_width-1) ) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter frac_data_out_width (legal range: 0 to data_out_width-1)",
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frac_data_out_width );
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end
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if (feedback_width < 2) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter feedback_width (lower bound: 2)",
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feedback_width );
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end
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if (max_coef_width < 2) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter max_coef_width (lower bound: 2)",
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max_coef_width );
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end
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if ( (frac_coef_width < 0) || (frac_coef_width > max_coef_width-1) ) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter frac_coef_width (legal range: 0 to max_coef_width-1)",
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frac_coef_width );
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end
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if ( (saturation_mode < 0) || (saturation_mode > 1) ) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter saturation_mode (legal range: 0 to 1)",
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saturation_mode );
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end
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if ( (out_reg < 0) || (out_reg > 1) ) begin
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param_err_flg = 1;
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$display(
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"ERROR: %m :\n Invalid value (%d) for parameter out_reg (legal range: 0 to 1)",
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out_reg );
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end
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if ( param_err_flg == 1) begin
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$display(
|
||||
"%m :\n Simulation aborted due to invalid parameter value(s)");
|
||||
$finish;
|
||||
end
|
||||
|
||||
end // parameter_check
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------
|
||||
// Report unknown clock inputs
|
||||
//---------------------------------------------------------------------------
|
||||
|
||||
always @ (clk) begin : clk_monitor
|
||||
if ( (clk !== 1'b0) && (clk !== 1'b1) && ($time > 0) )
|
||||
$display( "WARNING: %m :\n at time = %t, detected unknown value, %b, on clk input.",
|
||||
$time, clk );
|
||||
end // clk_monitor
|
||||
|
||||
// synopsys translate_on
|
||||
endmodule
|
||||
|
||||
|
|
@ -8,7 +8,7 @@
|
|||
//-----------------------------------------------------------------------------------------------------------------
|
||||
// Relese History
|
||||
// Version Date Author Description
|
||||
// 0.3 2024-05-15 thfu
|
||||
// 0.4 2024-11-07 thfu IIR filter using IP core
|
||||
//-----------------------------------------------------------------------------------------------------------------
|
||||
// Keywords :
|
||||
//
|
||||
|
|
@ -31,91 +31,67 @@
|
|||
// Other:
|
||||
//-FHDR--------------------------------------------------------------------------------------------------------
|
||||
|
||||
parameter data_in_width = 16;
|
||||
parameter max_coef_width = 32;
|
||||
parameter frac_data_out_width = 20;//X for in,5
|
||||
parameter frac_coef_width = 31;//division
|
||||
parameter feedback_width = 36;
|
||||
parameter data_out_width = 36;
|
||||
parameter saturation_mode = 0;
|
||||
parameter out_reg = 1;
|
||||
|
||||
module TailCorr_top
|
||||
|
||||
(
|
||||
clk,
|
||||
rstn,
|
||||
en,
|
||||
tc_bypass,
|
||||
din_re,
|
||||
din_im,
|
||||
a0_re,
|
||||
a0_im,
|
||||
b0_re,
|
||||
b0_im,
|
||||
a1_re,
|
||||
a1_im,
|
||||
b1_re,
|
||||
b1_im,
|
||||
a2_re,
|
||||
a2_im,
|
||||
b2_re,
|
||||
b2_im,
|
||||
a3_re,
|
||||
a3_im,
|
||||
b3_re,
|
||||
b3_im,
|
||||
a4_re,
|
||||
a4_im,
|
||||
b4_re,
|
||||
b4_im,
|
||||
a5_re,
|
||||
a5_im,
|
||||
b5_re,
|
||||
b5_im,
|
||||
dout
|
||||
input clk,
|
||||
input rstn,
|
||||
input en,
|
||||
input tc_bypass,
|
||||
input signed [15:0] din_re,
|
||||
input signed [15:0] din_im,
|
||||
input signed [31:0] a0_re,
|
||||
input signed [31:0] a0_im,
|
||||
input signed [31:0] b0_re,
|
||||
input signed [31:0] b0_im,
|
||||
input signed [31:0] a1_re,
|
||||
input signed [31:0] a1_im,
|
||||
input signed [31:0] b1_re,
|
||||
input signed [31:0] b1_im,
|
||||
input signed [31:0] a2_re,
|
||||
input signed [31:0] a2_im,
|
||||
input signed [31:0] b2_re,
|
||||
input signed [31:0] b2_im,
|
||||
input signed [31:0] a3_re,
|
||||
input signed [31:0] a3_im,
|
||||
input signed [31:0] b3_re,
|
||||
input signed [31:0] b3_im,
|
||||
input signed [31:0] a4_re,
|
||||
input signed [31:0] a4_im,
|
||||
input signed [31:0] b4_re,
|
||||
input signed [31:0] b4_im,
|
||||
input signed [31:0] a5_re,
|
||||
input signed [31:0] a5_im,
|
||||
input signed [31:0] b5_re,
|
||||
input signed [31:0] b5_im,
|
||||
output signed [15:0] dout,
|
||||
output saturation_0,
|
||||
output saturation_1,
|
||||
output saturation_2,
|
||||
output saturation_3,
|
||||
output saturation_4,
|
||||
output saturation_5
|
||||
);
|
||||
|
||||
input rstn;
|
||||
input clk;
|
||||
input en;
|
||||
input tc_bypass;
|
||||
input signed [15:0] din_re;
|
||||
input signed [15:0] din_im;
|
||||
input signed [36:0] a0_re;
|
||||
input signed [36:0] a0_im;
|
||||
input signed [20:0] b0_re;
|
||||
input signed [20:0] b0_im;
|
||||
input signed [36:0] a1_re;
|
||||
input signed [36:0] a1_im;
|
||||
input signed [20:0] b1_re;
|
||||
input signed [20:0] b1_im;
|
||||
input signed [36:0] a2_re;
|
||||
input signed [36:0] a2_im;
|
||||
input signed [20:0] b2_re;
|
||||
input signed [20:0] b2_im;
|
||||
input signed [36:0] a3_re;
|
||||
input signed [36:0] a3_im;
|
||||
input signed [20:0] b3_re;
|
||||
input signed [20:0] b3_im;
|
||||
input signed [36:0] a4_re;
|
||||
input signed [36:0] a4_im;
|
||||
input signed [20:0] b4_re;
|
||||
input signed [20:0] b4_im;
|
||||
input signed [36:0] a5_re;
|
||||
input signed [36:0] a5_im;
|
||||
input signed [20:0] b5_re;
|
||||
input signed [20:0] b5_im;
|
||||
|
||||
output signed [15:0] dout;
|
||||
|
||||
|
||||
wire signed [15:0] IIRin_re;
|
||||
wire signed [15:0] IIRin_im;
|
||||
wire signed [15:0] dout_0;
|
||||
wire signed [15:0] dout_1;
|
||||
wire signed [15:0] dout_2;
|
||||
wire signed [15:0] dout_3;
|
||||
wire signed [15:0] dout_4;
|
||||
wire signed [15:0] dout_5;
|
||||
wire signed [35:0] dout_0;
|
||||
wire signed [35:0] dout_1;
|
||||
wire signed [35:0] dout_2;
|
||||
wire signed [35:0] dout_3;
|
||||
wire signed [35:0] dout_4;
|
||||
wire signed [35:0] dout_5;
|
||||
wire signed [18:0] Ysum;
|
||||
|
||||
reg signed [15:0] din_r0;
|
||||
reg signed [15:0] din_r1;
|
||||
reg signed [15:0] din_r2;
|
||||
reg signed [15:0] din_r3;
|
||||
reg signed [15:0] din_r4;
|
||||
reg signed [15:0] dout_r;
|
||||
|
||||
diff inst_diffRe
|
||||
|
|
@ -136,83 +112,190 @@ diff inst_diffIm
|
|||
.dout (IIRin_im )
|
||||
);
|
||||
|
||||
IIR_Filter inst_iir_0 (
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_0
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.din_re (IIRin_re ),
|
||||
.din_im (IIRin_im ),
|
||||
.a_re (a0_re ),
|
||||
.a_im (a0_im ),
|
||||
.b_re (b0_re ),
|
||||
.b_im (b0_im ),
|
||||
.dout (dout_0 )
|
||||
);
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (b0_re ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (a0_re ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (IIRin_re ),
|
||||
.data_out (dout_0 ),
|
||||
.saturation (saturation_0 )
|
||||
);
|
||||
|
||||
IIR_Filter inst_iir_1 (
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_1
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.din_re (IIRin_re ),
|
||||
.din_im (IIRin_im ),
|
||||
.a_re (a1_re ),
|
||||
.a_im (a1_im ),
|
||||
.b_re (b1_re ),
|
||||
.b_im (b1_im ),
|
||||
.dout (dout_1 )
|
||||
);
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (b1_re ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (a1_re ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (IIRin_re ),
|
||||
.data_out (dout_1 ),
|
||||
.saturation (saturation_1 )
|
||||
);
|
||||
|
||||
IIR_Filter inst_iir_2 (
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_2
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.din_re (IIRin_re ),
|
||||
.din_im (IIRin_im ),
|
||||
.a_re (a2_re ),
|
||||
.a_im (a2_im ),
|
||||
.b_re (b2_re ),
|
||||
.b_im (b2_im ),
|
||||
.dout (dout_2 )
|
||||
);
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (b2_re ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (a2_re ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (IIRin_re ),
|
||||
.data_out (dout_2 ),
|
||||
.saturation (saturation_2 )
|
||||
);
|
||||
|
||||
IIR_Filter inst_iir_3 (
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_3
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.din_re (IIRin_re ),
|
||||
.din_im (IIRin_im ),
|
||||
.a_re (a3_re ),
|
||||
.a_im (a3_im ),
|
||||
.b_re (b3_re ),
|
||||
.b_im (b3_im ),
|
||||
.dout (dout_3 )
|
||||
);
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (b3_re ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (a3_re ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (IIRin_re ),
|
||||
.data_out (dout_3 ),
|
||||
.saturation (saturation_3 )
|
||||
);
|
||||
|
||||
IIR_Filter inst_iir_4 (
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_4
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.din_re (IIRin_re ),
|
||||
.din_im (IIRin_im ),
|
||||
.a_re (a4_re ),
|
||||
.a_im (a4_im ),
|
||||
.b_re (b4_re ),
|
||||
.b_im (b4_im ),
|
||||
.dout (dout_4 )
|
||||
);
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (b4_re ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (a4_re ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (IIRin_re ),
|
||||
.data_out (dout_4 ),
|
||||
.saturation (saturation_4 )
|
||||
);
|
||||
|
||||
IIR_Filter inst_iir_5 (
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_5
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.din_re (IIRin_re ),
|
||||
.din_im (IIRin_im ),
|
||||
.a_re (a5_re ),
|
||||
.a_im (a5_im ),
|
||||
.b_re (b5_re ),
|
||||
.b_im (b5_im ),
|
||||
.dout (dout_5 )
|
||||
);
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (b5_re ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (a5_re ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (IIRin_re ),
|
||||
.data_out (dout_5 ),
|
||||
.saturation (saturation_5 )
|
||||
);
|
||||
|
||||
wire signed [15:0] dout_cut_0;
|
||||
wire signed [15:0] dout_cut_1;
|
||||
wire signed [15:0] dout_cut_2;
|
||||
wire signed [15:0] dout_cut_3;
|
||||
wire signed [15:0] dout_cut_4;
|
||||
wire signed [15:0] dout_cut_5;
|
||||
|
||||
assign dout_cut_0 = dout_0[35:20];
|
||||
assign dout_cut_1 = dout_1[35:20];
|
||||
assign dout_cut_2 = dout_2[35:20];
|
||||
assign dout_cut_3 = dout_3[35:20];
|
||||
assign dout_cut_4 = dout_4[35:20];
|
||||
assign dout_cut_5 = dout_5[35:20];
|
||||
|
||||
reg signed [15:0] din_r0;
|
||||
reg signed [15:0] din_r1;
|
||||
reg signed [15:0] din_r2;
|
||||
reg signed [15:0] din_r3;
|
||||
reg signed [15:0] din_r4;
|
||||
reg signed [15:0] din_r5;
|
||||
reg signed [15:0] din_r6;
|
||||
reg signed [15:0] din_r7;
|
||||
|
||||
|
||||
always @(posedge clk or negedge rstn)
|
||||
|
|
@ -223,6 +306,9 @@ always @(posedge clk or negedge rstn)
|
|||
din_r2 <= 'h0;
|
||||
din_r3 <= 'h0;
|
||||
din_r4 <= 'h0;
|
||||
din_r5 <= 'h0;
|
||||
din_r6 <= 'h0;
|
||||
din_r7 <= 'h0;
|
||||
end
|
||||
else if(en)
|
||||
begin
|
||||
|
|
@ -231,6 +317,9 @@ always @(posedge clk or negedge rstn)
|
|||
din_r2 <= din_r1;
|
||||
din_r3 <= din_r2;
|
||||
din_r4 <= din_r3;
|
||||
din_r5 <= din_r4;
|
||||
din_r6 <= din_r5;
|
||||
din_r7 <= din_r6;
|
||||
end
|
||||
else
|
||||
begin
|
||||
|
|
@ -239,9 +328,12 @@ always @(posedge clk or negedge rstn)
|
|||
din_r2 <= din_r2;
|
||||
din_r3 <= din_r3;
|
||||
din_r4 <= din_r4;
|
||||
din_r5 <= din_r5;
|
||||
din_r6 <= din_r6;
|
||||
din_r7 <= din_r7;
|
||||
end
|
||||
|
||||
assign Ysum = dout_0 + dout_1 + dout_2 + dout_3 + dout_4 + dout_5 + din_r4;
|
||||
assign Ysum = dout_cut_0 + dout_cut_1 + dout_cut_2 + dout_cut_3 + dout_cut_4 + dout_cut_5 +din_r2;
|
||||
|
||||
always@(posedge clk or negedge rstn)
|
||||
if (!rstn)begin
|
||||
|
|
|
|||
141
rtl/z_dsp.v
141
rtl/z_dsp.v
|
|
@ -8,7 +8,7 @@
|
|||
//-----------------------------------------------------------------------------------------------------------------
|
||||
// Relese History
|
||||
// Version Date Author Description
|
||||
// 0.2 2024-10-09 thfu to fit the addition of 8 interpolation
|
||||
// 0.3 2024-11-09 thfu to fit the addition of IP core
|
||||
//-----------------------------------------------------------------------------------------------------------------
|
||||
// Keywords :
|
||||
//
|
||||
|
|
@ -33,93 +33,56 @@
|
|||
|
||||
module z_dsp
|
||||
(
|
||||
clk,
|
||||
rstn,
|
||||
en, //enable
|
||||
dac_mode_sel, //2'b00:NRZ mode;2'b01:Double data mode;
|
||||
input clk,
|
||||
input rstn,
|
||||
input en, //enable
|
||||
input dac_mode_sel, //2'b00:NRZ mode;2'b01:Double data mode;
|
||||
//2'b10:Double Double data mode;2'b11:reserve;
|
||||
tc_bypass,
|
||||
intp_mode, //2'b00:x1;2'b01:x2,'b10:x4;other:reserve;
|
||||
din_re,
|
||||
din_im,
|
||||
a0_re, //a0's real part
|
||||
a0_im, //a0's image part
|
||||
b0_re,
|
||||
b0_im,
|
||||
a1_re,
|
||||
a1_im,
|
||||
b1_re,
|
||||
b1_im,
|
||||
a2_re,
|
||||
a2_im,
|
||||
b2_re,
|
||||
b2_im,
|
||||
a3_re,
|
||||
a3_im,
|
||||
b3_re,
|
||||
b3_im,
|
||||
a4_re,
|
||||
a4_im,
|
||||
b4_re,
|
||||
b4_im,
|
||||
a5_re,
|
||||
a5_im,
|
||||
b5_re,
|
||||
b5_im,
|
||||
dout0,
|
||||
dout1,
|
||||
dout2,
|
||||
dout3,
|
||||
dout4,
|
||||
dout5,
|
||||
dout6,
|
||||
dout7,
|
||||
vldo
|
||||
input [1:0] tc_bypass,
|
||||
input [1:0] intp_mode, //2'b00:x1;2'b01:x2,'b10:x4;other:reserve;
|
||||
input signed [15:0] din_re,
|
||||
input signed [15:0] din_im,
|
||||
input signed [31:0] a0_re, //a0's real part
|
||||
input signed [31:0] a0_im, //a0's image part
|
||||
input signed [31:0] b0_re,
|
||||
input signed [31:0] b0_im,
|
||||
input signed [31:0] a1_re,
|
||||
input signed [31:0] a1_im,
|
||||
input signed [31:0] b1_re,
|
||||
input signed [31:0] b1_im,
|
||||
input signed [31:0] a2_re,
|
||||
input signed [31:0] a2_im,
|
||||
input signed [31:0] b2_re,
|
||||
input signed [31:0] b2_im,
|
||||
input signed [31:0] a3_re,
|
||||
input signed [31:0] a3_im,
|
||||
input signed [31:0] b3_re,
|
||||
input signed [31:0] b3_im,
|
||||
input signed [31:0] a4_re,
|
||||
input signed [31:0] a4_im,
|
||||
input signed [31:0] b4_re,
|
||||
input signed [31:0] b4_im,
|
||||
input signed [31:0] a5_re,
|
||||
input signed [31:0] a5_im,
|
||||
input signed [31:0] b5_re,
|
||||
input signed [31:0] b5_im,
|
||||
output signed [15:0] dout0,
|
||||
output signed [15:0] dout1,
|
||||
output signed [15:0] dout2,
|
||||
output signed [15:0] dout3,
|
||||
output signed [15:0] dout4,
|
||||
output signed [15:0] dout5,
|
||||
output signed [15:0] dout6,
|
||||
output signed [15:0] dout7,
|
||||
output vldo,
|
||||
output saturation_0,
|
||||
output saturation_1,
|
||||
output saturation_2,
|
||||
output saturation_3,
|
||||
output saturation_4,
|
||||
output saturation_5
|
||||
);
|
||||
|
||||
input rstn;
|
||||
input clk;
|
||||
input en;
|
||||
input tc_bypass;
|
||||
input [1:0] intp_mode;
|
||||
input [1:0] dac_mode_sel;
|
||||
input signed [15:0] din_re;
|
||||
input signed [15:0] din_im;
|
||||
input signed [36:0] a0_re;
|
||||
input signed [36:0] a0_im;
|
||||
input signed [20:0] b0_re;
|
||||
input signed [20:0] b0_im;
|
||||
input signed [36:0] a1_re;
|
||||
input signed [36:0] a1_im;
|
||||
input signed [20:0] b1_re;
|
||||
input signed [20:0] b1_im;
|
||||
input signed [36:0] a2_re;
|
||||
input signed [36:0] a2_im;
|
||||
input signed [20:0] b2_re;
|
||||
input signed [20:0] b2_im;
|
||||
input signed [36:0] a3_re;
|
||||
input signed [36:0] a3_im;
|
||||
input signed [20:0] b3_re;
|
||||
input signed [20:0] b3_im;
|
||||
input signed [36:0] a4_re;
|
||||
input signed [36:0] a4_im;
|
||||
input signed [20:0] b4_re;
|
||||
input signed [20:0] b4_im;
|
||||
input signed [36:0] a5_re;
|
||||
input signed [36:0] a5_im;
|
||||
input signed [20:0] b5_re;
|
||||
input signed [20:0] b5_im;
|
||||
|
||||
output signed [15:0] dout0;
|
||||
output signed [15:0] dout1;
|
||||
output signed [15:0] dout2;
|
||||
output signed [15:0] dout3;
|
||||
output signed [15:0] dout4;
|
||||
output signed [15:0] dout5;
|
||||
output signed [15:0] dout6;
|
||||
output signed [15:0] dout7;
|
||||
output vldo;
|
||||
|
||||
wire signed [15:0] IIR_out;
|
||||
|
||||
reg [10:0] vldo_r;
|
||||
|
|
@ -168,7 +131,13 @@ TailCorr_top inst_TailCorr_top
|
|||
.a5_im (a5_im ),
|
||||
.b5_re (b5_re ),
|
||||
.b5_im (b5_im ),
|
||||
.dout (IIR_out )
|
||||
.dout (IIR_out ),
|
||||
.saturation_0 (saturation_0 ),
|
||||
.saturation_1 (saturation_1 ),
|
||||
.saturation_2 (saturation_2 ),
|
||||
.saturation_3 (saturation_3 ),
|
||||
.saturation_4 (saturation_4 ),
|
||||
.saturation_5 (saturation_5 )
|
||||
);
|
||||
|
||||
wire signed [15:0] dout_0;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,40 @@
|
|||
%2024-11-09-verify IIR IP core
|
||||
clc;clear;close all
|
||||
|
||||
in = importdata("/home/thfu/work/TailCorr/sim/in.dat");
|
||||
diff_in = importdata("/home/thfu/work/TailCorr/sim/diff_in.dat");
|
||||
wave_verdi = importdata("/home/thfu/work/TailCorr/sim/OrgOut.dat");
|
||||
|
||||
% imp = [2^15-1; zeros(499,1)];
|
||||
A = [0.025 0.015 0.0002];
|
||||
tau = -[1/250 1/650 1/1600];
|
||||
fs = 2e9;
|
||||
|
||||
for i = 1:3
|
||||
b(i) = exp(1e9/fs/(1-A(i))*tau(i));
|
||||
a(i) = A(i)/1/(1-A(i))*exp(1e9/fs/(1-A(i))/2*tau(i));
|
||||
end
|
||||
|
||||
|
||||
for i = 1:3
|
||||
h_ideal(:,i) = filter(a(i),[1 -b(i)],diff_in);
|
||||
end
|
||||
|
||||
wave_float = in+ sum(h_ideal,2);
|
||||
[wave_float_A,wave_verdi_A] = alignsignals(wave_float,wave_verdi);
|
||||
N = min(length(wave_float_A),length(wave_verdi_A));
|
||||
figure()
|
||||
diff_plot(wave_float_A, wave_verdi_A,'float','verdi',[0 N]);
|
||||
|
||||
%%
|
||||
% signalAnalyzer(h_ideal_A*2^20,out_A,'SampleRate',1);
|
||||
% signalAnalyzer(h_ideal_A,floor(out_A/2^20),'SampleRate',1);
|
||||
signalAnalyzer(wave_float_A,wave_verdi_A,'SampleRate',1);
|
||||
% signalAnalyzer((h_ideal_A(1:N)-out_A(1:N))/2^35,'SampleRate',1);
|
||||
%%
|
||||
fprintf("a is %.10f\n",a)
|
||||
fprintf("b is %.10f\n",b)
|
||||
%%
|
||||
fprintf("a of 32 bit %d\n",round(a*2^31));
|
||||
fprintf("b of 32 bit %d\n",round(b*2^31));
|
||||
|
||||
|
|
@ -1,6 +1,5 @@
|
|||
../rtl/diff.v
|
||||
../rtl/DW_mult_pipe.v
|
||||
../rtl/mult_C.v
|
||||
//../rtl/z_data_mux.v
|
||||
../rtl/nco/coef_c.v
|
||||
../rtl/nco/pipe_acc_48bit.v
|
||||
|
|
@ -14,10 +13,9 @@
|
|||
../rtl/lsdacif.v
|
||||
../rtl/TailCorr_top.v
|
||||
../rtl/z_dsp.v
|
||||
../rtl/z_dsp_en_Test.v
|
||||
../rtl/MeanIntp_8.v
|
||||
../rtl/DW02_mult.v
|
||||
../rtl/IIR_Filter.v
|
||||
../rtl/DW_iir_dc.v
|
||||
../tb/clk_gen.v
|
||||
../tb/tb_z_dsp_en_Test.v
|
||||
../tb/tb_z_dsp.v
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,168 @@
|
|||
module TB();
|
||||
|
||||
parameter data_in_width = 16;
|
||||
parameter max_coef_width = 32;
|
||||
parameter frac_data_out_width = 20;//X for in,5
|
||||
parameter frac_coef_width = 31;//division
|
||||
parameter feedback_width = 36;
|
||||
parameter data_out_width = 36;
|
||||
parameter saturation_mode = 0;
|
||||
parameter out_reg = 1;
|
||||
|
||||
initial
|
||||
begin
|
||||
$fsdbDumpfile("TB.fsdb");
|
||||
$fsdbDumpvars(0, TB);
|
||||
end
|
||||
|
||||
reg clk;
|
||||
reg rstn;
|
||||
reg [15:0] din_im;
|
||||
|
||||
reg [36:0] a;
|
||||
reg [36:0] b;
|
||||
reg [20:0] c;
|
||||
reg [20:0] d;
|
||||
|
||||
reg [47:0] fcw;
|
||||
|
||||
reg [21:0] cnt;
|
||||
reg [15:0] din_imp;
|
||||
reg [15:0] din_rect;
|
||||
reg [15:0] din_cos;
|
||||
reg [15:0] diff_in;
|
||||
reg en;
|
||||
|
||||
wire [1 :0] source_mode;
|
||||
wire [15 :0] iir_in;
|
||||
wire [15:0] cos;
|
||||
wire [15:0] sin;
|
||||
wire [35:0] dout_p0;
|
||||
|
||||
initial
|
||||
begin
|
||||
#0;
|
||||
rstn = 1'b0;
|
||||
clk = 1'b0;
|
||||
|
||||
din_im = 16'd0;
|
||||
|
||||
a = 37'd1757225200;
|
||||
b = 37'd0;
|
||||
c = -21'd1042856;
|
||||
d = 21'd0;
|
||||
|
||||
fcw = 48'h0840_0000_0000;
|
||||
|
||||
din_imp = 16'd0;
|
||||
din_rect = 16'd0;
|
||||
din_cos = 16'd0;
|
||||
|
||||
#3600;
|
||||
en = 1'b1;
|
||||
#3800;
|
||||
rstn = 1'b1;
|
||||
din_imp = 16'd32767;
|
||||
din_rect = 8'd1;
|
||||
#400;
|
||||
din_imp = 16'd0;
|
||||
#12000;
|
||||
din_rect = 16'd0;
|
||||
|
||||
end
|
||||
|
||||
always #200 clk = ~clk;
|
||||
|
||||
always@(posedge clk or negedge rstn)
|
||||
if(!rstn)
|
||||
cnt <= 22'd0;
|
||||
else
|
||||
cnt <= cnt + 22'd1;
|
||||
|
||||
initial
|
||||
begin
|
||||
wait(cnt[16]==1'b1)
|
||||
$finish(0);
|
||||
end
|
||||
|
||||
|
||||
always@(posedge clk or negedge rstn)
|
||||
if(!rstn)
|
||||
begin
|
||||
din_cos <= 16'd0;
|
||||
diff_in <= 16'd0;
|
||||
end
|
||||
else
|
||||
din_cos <= cos;
|
||||
|
||||
assign source_mode = 2'b00;
|
||||
|
||||
always @(*)
|
||||
|
||||
case(source_mode)
|
||||
2'b00 : diff_in = din_imp;
|
||||
2'b01 : diff_in = din_rect;
|
||||
2'b10 : diff_in = din_cos;
|
||||
endcase
|
||||
|
||||
|
||||
NCO inst_nco_0(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.phase_manual_clr (1'b0 ),
|
||||
.phase_auto_clr (1'b0 ),
|
||||
.fcw (fcw ),
|
||||
.pha (16'd0 ),
|
||||
.cos (cos ),
|
||||
.sin (sin )
|
||||
);
|
||||
|
||||
DW_iir_dc
|
||||
#(
|
||||
.data_in_width (data_in_width ),
|
||||
.data_out_width (data_out_width ),
|
||||
.frac_data_out_width (frac_data_out_width),
|
||||
.feedback_width (feedback_width ),
|
||||
.max_coef_width (max_coef_width ),
|
||||
.frac_coef_width (frac_coef_width ),
|
||||
.saturation_mode (saturation_mode ),
|
||||
.out_reg (out_reg )
|
||||
)
|
||||
inst_iir_0
|
||||
(
|
||||
.clk (clk ),
|
||||
.rst_n (rstn ),
|
||||
.init_n (rstn ),
|
||||
.enable (en ),
|
||||
.A1_coef (32'd2143083069 ),//Den
|
||||
.A2_coef ('h0 ),
|
||||
.B0_coef (32'd55007236 ),//Num
|
||||
.B1_coef ('h0 ),
|
||||
.B2_coef ('h0 ),
|
||||
.data_in (diff_in ),
|
||||
.data_out (dout_p0 ),
|
||||
.saturation ( )
|
||||
);
|
||||
|
||||
|
||||
integer signed In_fid;
|
||||
integer signed Out_fid;
|
||||
|
||||
initial begin
|
||||
#0;
|
||||
In_fid = $fopen("./in");
|
||||
Out_fid = $fopen("./out");
|
||||
end
|
||||
|
||||
always@(posedge clk)
|
||||
|
||||
$fwrite(In_fid,"%d\n",{{~{diff_in[15]}},diff_in[14:0]});
|
||||
|
||||
always@(posedge clk)
|
||||
|
||||
$fwrite(Out_fid,"%d\n",{{~{dout_p0[35]}},dout_p0[34:0]});
|
||||
|
||||
endmodule
|
||||
|
||||
|
||||
|
||||
152
tb/tb_iir.v.bak
152
tb/tb_iir.v.bak
|
|
@ -1,152 +0,0 @@
|
|||
module TB();
|
||||
|
||||
initial
|
||||
begin
|
||||
$fsdbDumpfile("TB.fsdb");
|
||||
$fsdbDumpvars(0, TB);
|
||||
end
|
||||
|
||||
reg clk;
|
||||
reg rstn;
|
||||
reg [15:0] din_im;
|
||||
|
||||
reg [31:0] a;
|
||||
reg [31:0] b;
|
||||
reg [31:0] c;
|
||||
reg [31:0] d;
|
||||
|
||||
reg [47:0] fcw;
|
||||
|
||||
reg [21:0] cnt;
|
||||
reg [15:0] din_imp;
|
||||
reg [15:0] din_rect;
|
||||
reg [15:0] din_cos;
|
||||
reg en;
|
||||
reg [15 :0] diff_in;
|
||||
|
||||
wire [1 :0] source_mode;
|
||||
wire [15 :0] iir_in;
|
||||
wire [15:0] cos;
|
||||
wire [15:0] sin;
|
||||
wire [15:0] dout_p0;
|
||||
|
||||
initial
|
||||
begin
|
||||
#0;
|
||||
rstn = 1'b0;
|
||||
clk = 1'b0;
|
||||
|
||||
din_im = 16'd0;
|
||||
|
||||
a = 32'd13740916;
|
||||
b = 32'd0;
|
||||
c = -32'd1047703;
|
||||
d = 32'd0;
|
||||
|
||||
fcw = 48'h0840_0000_0000;
|
||||
|
||||
din_imp = 16'd0;
|
||||
din_rect = 16'd0;
|
||||
din_cos = 16'd0;
|
||||
|
||||
#3600;
|
||||
en = 16'd0;
|
||||
#3800;
|
||||
rstn = 1'b1;
|
||||
din_imp = 16'd32767;
|
||||
din_rect = 16'd32767;
|
||||
#400;
|
||||
din_imp = 16'd0;
|
||||
#12000;
|
||||
din_rect = 16'd0;
|
||||
|
||||
end
|
||||
|
||||
always #200 clk = ~clk;
|
||||
|
||||
always@(posedge clk or negedge rstn)
|
||||
if(!rstn)
|
||||
cnt <= 22'd0;
|
||||
else
|
||||
cnt <= cnt + 22'd1;
|
||||
|
||||
initial
|
||||
begin
|
||||
wait(cnt[16]==1'b1)
|
||||
$finish(0);
|
||||
end
|
||||
|
||||
|
||||
always@(posedge clk or negedge rstn)
|
||||
if(!rstn)
|
||||
begin
|
||||
din_cos <= 16'd0;
|
||||
diff_in <= 16'd0;
|
||||
end
|
||||
else
|
||||
din_cos <= cos;
|
||||
|
||||
assign source_mode = 2'b01;
|
||||
|
||||
always @(*)
|
||||
|
||||
case(source_mode)
|
||||
2'b00 : diff_in = din_imp;
|
||||
2'b01 : diff_in = din_rect;
|
||||
2'b10 : diff_in = din_cos;
|
||||
endcase
|
||||
|
||||
|
||||
NCO inst_nco_0(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.phase_manual_clr (1'b0 ),
|
||||
.phase_auto_clr (1'b0 ),
|
||||
.fcw (fcw ),
|
||||
.pha (16'd0 ),
|
||||
.cos (cos ),
|
||||
.sin (sin )
|
||||
);
|
||||
|
||||
diff inst_diff
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.din (diff_in ),
|
||||
.dout (iir_in )
|
||||
);
|
||||
|
||||
IIR_Filter inst1_IIR_Filter
|
||||
(
|
||||
.clk (clk ),
|
||||
.rstn (rstn ),
|
||||
.din_re (iir_in ),
|
||||
.din_im (din_im ),
|
||||
.a_re (a ),
|
||||
.a_im (b ),
|
||||
.b_re (c ),
|
||||
.b_im (d ),
|
||||
.dout (dout_p0 )
|
||||
);
|
||||
|
||||
integer signed In_fid;
|
||||
integer signed Out_fid;
|
||||
|
||||
initial begin
|
||||
#0;
|
||||
In_fid = $fopen("./in");
|
||||
Out_fid = $fopen("./out");
|
||||
end
|
||||
|
||||
always@(posedge clk)
|
||||
|
||||
$fwrite(In_fid,"%d\n",{{~{iir_in[15]}},iir_in[14:0]});
|
||||
|
||||
always@(posedge clk)
|
||||
|
||||
$fwrite(Out_fid,"%d\n",{{~{dout_p0[15]}},dout_p0[14:0]});
|
||||
|
||||
endmodule
|
||||
|
||||
|
||||
|
||||
391
tb/tb_top.v.bak
391
tb/tb_top.v.bak
|
|
@ -1,391 +0,0 @@
|
|||
module TB();
|
||||
|
||||
initial
|
||||
begin
|
||||
$fsdbDumpfile("TB.fsdb");
|
||||
$fsdbDumpvars(0, TB);
|
||||
end
|
||||
|
||||
|
||||
reg clk;
|
||||
reg rstn;
|
||||
reg [15:0] din_im;
|
||||
|
||||
reg [31:0] a0_re;
|
||||
reg [31:0] a0_im;
|
||||
reg [31:0] b0_re;
|
||||
reg [31:0] b0_im;
|
||||
reg [31:0] a1_re;
|
||||
reg [31:0] a1_im;
|
||||
reg [31:0] b1_re;
|
||||
reg [31:0] b1_im;
|
||||
reg [31:0] a2_re;
|
||||
reg [31:0] a2_im;
|
||||
reg [31:0] b2_re;
|
||||
reg [31:0] b2_im;
|
||||
reg [31:0] a3_re;
|
||||
reg [31:0] a3_im;
|
||||
reg [31:0] b3_re;
|
||||
reg [31:0] b3_im;
|
||||
reg [31:0] a4_re;
|
||||
reg [31:0] a4_im;
|
||||
reg [31:0] b4_re;
|
||||
reg [31:0] b4_im;
|
||||
reg [31:0] a5_re;
|
||||
reg [31:0] a5_im;
|
||||
reg [31:0] b5_re;
|
||||
reg [31:0] b5_im;
|
||||
|
||||
reg [47:0] fcw;
|
||||
|
||||
reg [21:0] cnt;
|
||||
reg [15:0] din_imp;
|
||||
reg [15:0] din_rect;
|
||||
reg [15:0] din_cos;
|
||||
reg [15:0] iir_in;
|
||||
|
||||
wire [1 :0] source_mode;
|
||||
wire [15:0] cos;
|
||||
wire [15:0] sin;
|
||||
wire [15:0] dout_p0;
|
||||
|
||||
reg en;
|
||||
|
||||
initial
|
||||
begin
|
||||
#0;
|
||||
rstn = 1'b0;
|
||||
clk = 1'b0;
|
||||
en = 1'b0;
|
||||
|
||||
din_im = 16'd0;
|
||||
a0_re = 32'd1757225200;
|
||||
a0_im = 32'd0;
|
||||
b0_re = -32'd1042856;
|
||||
b0_im = 32'd0;
|
||||
a1_re = 32'd1045400392;
|
||||
a1_im = 32'd0;
|
||||
b1_re = -32'd1046395;
|
||||
b1_im = 32'd0;
|
||||
a2_re = 32'd13740916;
|
||||
a2_im = 32'd0;
|
||||
b2_re = -32'd1047703;
|
||||
b2_im = 32'd0;
|
||||
a3_re = 32'd0;
|
||||
a3_im = 32'd0;
|
||||
b3_re = -32'd0;
|
||||
b3_im = 32'd0;
|
||||
a4_re = 32'd0;
|
||||
a4_im = 32'd0;
|
||||
b4_re = -32'd0;
|
||||
b4_im = 32'd0;
|
||||
a5_re = 32'd0;
|
||||
a5_im = 32'd0;
|
||||
b5_re = -32'd0;
|
||||
b5_im = 32'd0;
|
||||
|
||||
fcw = 48'h0840_0000_0000;
|
||||
|
||||
din_imp = 16'd0;
|
||||
din_rect = 16'd0;
|
||||
din_cos = 16'd0;
|
||||
|
||||
#300;
|
||||
rstn = 1'b1;
|
||||
#16600300;
|
||||
// din_imp = 16'd30000;
|
||||
// din_rect = 16'd30000;
|
||||
// en = 1'b1;
|
||||
#6400;
|
||||
// din_imp = 16'd0;
|
||||
#64000;
|
||||
// din_rect = 16'd0;
|
||||
|
||||
end
|
||||
|
||||
always #200 clk = ~clk;
|
||||
|
||||
wire clk_div16_0;
|
||||
wire clk_div16_1;
|
||||
wire clk_div16_2;
|
||||
wire clk_div16_3;
|
||||
wire clk_div16_4;
|
||||
wire clk_div16_5;
|
||||
wire clk_div16_6;
|
||||
wire clk_div16_7;
|
||||
wire clk_div16_8;
|
||||
wire clk_div16_9;
|
||||
wire clk_div16_a;
|
||||
wire clk_div16_b;
|
||||
wire clk_div16_c;
|
||||
wire clk_div16_d;
|
||||
wire clk_div16_e;
|
||||
wire clk_div16_f;
|
||||
|
||||
|
||||
clk_gen inst_clk_gen(
|
||||
.rstn (rstn ),
|
||||
.clk (clk ),
|
||||
.clk_div16_0 (clk_div16_0 ),
|
||||
.clk_div16_1 (clk_div16_1 ),
|
||||
.clk_div16_2 (clk_div16_2 ),
|
||||
.clk_div16_3 (clk_div16_3 ),
|
||||
.clk_div16_4 (clk_div16_4 ),
|
||||
.clk_div16_5 (clk_div16_5 ),
|
||||
.clk_div16_6 (clk_div16_6 ),
|
||||
.clk_div16_7 (clk_div16_7 ),
|
||||
.clk_div16_8 (clk_div16_8 ),
|
||||
.clk_div16_9 (clk_div16_9 ),
|
||||
.clk_div16_a (clk_div16_a ),
|
||||
.clk_div16_b (clk_div16_b ),
|
||||
.clk_div16_c (clk_div16_c ),
|
||||
.clk_div16_d (clk_div16_d ),
|
||||
.clk_div16_e (clk_div16_e ),
|
||||
.clk_div16_f (clk_div16_f ),
|
||||
.clk_h (clk_h ),
|
||||
.clk_l (clk_l )
|
||||
);
|
||||
|
||||
always@(posedge clk_div16_f or negedge rstn)
|
||||
if(!rstn)
|
||||
cnt <= 22'd0;
|
||||
else
|
||||
cnt <= cnt + 22'd1;
|
||||
|
||||
initial
|
||||
begin
|
||||
wait(cnt[16]==1'b1)
|
||||
$finish(0);
|
||||
end
|
||||
|
||||
always@(posedge clk_div16_f or negedge rstn)
|
||||
if(!rstn)
|
||||
din_imp <= 22'd0;
|
||||
else if(cnt == 100)
|
||||
begin
|
||||
din_imp <= 16'd32767;
|
||||
//en <= 1'b1;
|
||||
end
|
||||
else
|
||||
din_imp <= 'h0;
|
||||
|
||||
always@(posedge clk_div16_f or negedge rstn)
|
||||
if(!rstn)
|
||||
din_rect <= 22'd0;
|
||||
else if(cnt >= 100 && cnt <=10100)
|
||||
begin
|
||||
din_rect <= 16'd30000;
|
||||
end
|
||||
else
|
||||
begin
|
||||
din_rect <= 16'd0;
|
||||
end
|
||||
|
||||
always@(posedge clk_div16_f or negedge rstn)
|
||||
if(!rstn)
|
||||
en <= 22'd0;
|
||||
else if(cnt >= 100 )
|
||||
begin
|
||||
en <= 1'b1;
|
||||
end
|
||||
|
||||
always@(posedge clk_div16_f or negedge rstn)
|
||||
if(!rstn)
|
||||
begin
|
||||
din_cos <= 16'd0;
|
||||
iir_in <= 16'd0;
|
||||
end
|
||||
else
|
||||
din_cos <= cos;
|
||||
|
||||
assign source_mode = 2'b01;
|
||||
|
||||
always @(*)
|
||||
|
||||
case(source_mode)
|
||||
2'b00 : iir_in = din_imp;
|
||||
2'b01 : iir_in = din_rect;
|
||||
2'b10 : iir_in = din_cos;
|
||||
endcase
|
||||
|
||||
|
||||
|
||||
|
||||
NCO inst_nco_0(
|
||||
.clk (clk_div16_f ),
|
||||
.rstn (rstn ),
|
||||
.phase_manual_clr (1'b0 ),
|
||||
.phase_auto_clr (1'b0 ),
|
||||
.fcw (fcw ),
|
||||
.pha (16'd0 ),
|
||||
.cos (cos ),
|
||||
.sin (sin )
|
||||
);
|
||||
|
||||
|
||||
wire [15:0] dout_p0;
|
||||
wire [15:0] dout_p1;
|
||||
wire [15:0] dout_p2;
|
||||
wire [15:0] dout_p3;
|
||||
|
||||
wire [1:0] intp_mode;
|
||||
assign intp_mode = 2'b10;
|
||||
|
||||
wire [1:0] dac_mode_sel;
|
||||
assign dac_mode_sel = 2'b00;
|
||||
|
||||
z_dsp inst_Z_dsp
|
||||
(
|
||||
.clk (clk_div16_f ),
|
||||
.rstn (rstn ),
|
||||
.en (en ),
|
||||
.dac_mode_sel (dac_mode_sel ),
|
||||
.intp_mode (intp_mode ),
|
||||
.din_re (iir_in & {16{en}} ),
|
||||
.din_im (din_im ),
|
||||
.a0_re (a0_re ),
|
||||
.a0_im (a0_im ),
|
||||
.b0_re (b0_re ),
|
||||
.b0_im (b0_im ),
|
||||
.a1_re (a1_re ),
|
||||
.a1_im (a1_im ),
|
||||
.b1_re (b1_re ),
|
||||
.b1_im (b1_im ),
|
||||
.a2_re (a2_re ),
|
||||
.a2_im (a2_im ),
|
||||
.b2_re (b2_re ),
|
||||
.b2_im (b2_im ),
|
||||
.a3_re (a3_re ),
|
||||
.a3_im (a3_im ),
|
||||
.b3_re (b3_re ),
|
||||
.b3_im (b3_im ),
|
||||
.a4_re (a4_re ),
|
||||
.a4_im (a4_im ),
|
||||
.b4_re (b4_re ),
|
||||
.b4_im (b4_im ),
|
||||
.a5_re (a5_re ),
|
||||
.a5_im (a5_im ),
|
||||
.b5_re (b5_re ),
|
||||
.b5_im (b5_im ),
|
||||
.dout0 (dout_p0 ),
|
||||
.dout1 (dout_p1 ),
|
||||
.dout2 (dout_p2 ),
|
||||
.dout3 (dout_p3 )
|
||||
);
|
||||
|
||||
|
||||
reg [15:0] cs_wave = 0;
|
||||
|
||||
always@(*)
|
||||
fork
|
||||
case (intp_mode)
|
||||
2'b00 :
|
||||
begin
|
||||
@(posedge clk_div16_e) cs_wave = dout_p0;
|
||||
end
|
||||
2'b01 :
|
||||
begin
|
||||
@(posedge clk_div16_e) cs_wave = dout_p0;
|
||||
@(posedge clk_div16_6) cs_wave = dout_p1;
|
||||
end
|
||||
2'b10 :
|
||||
begin
|
||||
@(posedge clk_div16_e) cs_wave = dout_p0;
|
||||
@(posedge clk_div16_a) cs_wave = dout_p1;
|
||||
@(posedge clk_div16_6) cs_wave = dout_p2;
|
||||
@(posedge clk_div16_2) cs_wave = dout_p3;
|
||||
end
|
||||
endcase
|
||||
join
|
||||
|
||||
integer signed In_fid;
|
||||
integer X1_fid;
|
||||
integer X2_fid;
|
||||
integer X4_fid;
|
||||
|
||||
initial begin
|
||||
#0;
|
||||
In_fid = $fopen("./in");
|
||||
case (intp_mode)
|
||||
2'b00 : X1_fid = $fopen("./X1_data.dat");
|
||||
2'b01 : X2_fid = $fopen("./X2_data.dat");
|
||||
2'b10 : X4_fid = $fopen("./X4_data.dat");
|
||||
endcase
|
||||
end
|
||||
|
||||
|
||||
always@(posedge clk_div16_f)
|
||||
if(cnt >= 90)
|
||||
$fwrite(In_fid,"%d\n",{{{iir_in[15]}},iir_in[14:0]});
|
||||
|
||||
|
||||
always@(*)
|
||||
fork
|
||||
case (intp_mode)
|
||||
2'b00 :
|
||||
begin
|
||||
@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X1_fid,"%d\n",{{{dout_p0[15]}},dout_p0[14:0]});
|
||||
end
|
||||
2'b01 :
|
||||
begin
|
||||
@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X2_fid,"%d\n",{{{dout_p0[15]}},dout_p0[14:0]});
|
||||
@(posedge clk_div16_6)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X2_fid,"%d\n",{{{dout_p1[15]}},dout_p1[14:0]});
|
||||
end
|
||||
2'b10 :
|
||||
begin
|
||||
@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{{dout_p0[15]}},dout_p0[14:0]});
|
||||
@(posedge clk_div16_a)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{{dout_p1[15]}},dout_p1[14:0]});
|
||||
@(posedge clk_div16_6)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{{dout_p2[15]}},dout_p2[14:0]});
|
||||
@(posedge clk_div16_2)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{{dout_p3[15]}},dout_p3[14:0]});
|
||||
end
|
||||
endcase
|
||||
join
|
||||
|
||||
/*
|
||||
always@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(In_fid,"%d\n",{{~{iir_in[15]}},iir_in[14:0]});
|
||||
|
||||
always@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X1_fid,"%d\n",{{~{dout_p3[15]}},dout_p3[14:0]});
|
||||
|
||||
always@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X2_fid,"%d\n",{{~{dout_p1[15]}},dout_p1[14:0]});
|
||||
always@(posedge clk_div16_6)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X2_fid,"%d\n",{{~{dout_p3[15]}},dout_p3[14:0]});
|
||||
|
||||
always@(posedge clk_div16_e)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{~{dout_p0[15]}},dout_p0[14:0]});
|
||||
always@(posedge clk_div16_a)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{~{dout_p1[15]}},dout_p1[14:0]});
|
||||
always@(posedge clk_div16_6)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{~{dout_p2[15]}},dout_p2[14:0]});
|
||||
always@(posedge clk_div16_2)
|
||||
if(cnt >= 90)
|
||||
$fwrite(X4_fid,"%d\n",{{~{dout_p3[15]}},dout_p3[14:0]});
|
||||
*/
|
||||
|
||||
endmodule
|
||||
|
||||
|
||||
|
||||
|
|
@ -64,25 +64,26 @@ begin
|
|||
en = 1'b0;
|
||||
|
||||
din_im = 16'd0;
|
||||
a0_re = 32'd1757225200;
|
||||
|
||||
a0_re = 32'd55007237;
|
||||
a0_im = 32'd0;
|
||||
b0_re = -32'd1042856;
|
||||
b0_re = 32'd2143083068;
|
||||
b0_im = 32'd0;
|
||||
a1_re = 32'd1045400392;
|
||||
a1_re = 32'd32690030;
|
||||
a1_im = 32'd0;
|
||||
b1_re = -32'd1046395;
|
||||
b1_re = 32'd2145807236;
|
||||
b1_im = 32'd0;
|
||||
a2_re = 32'd13740916;
|
||||
a2_re = 32'd429516;
|
||||
a2_im = 32'd0;
|
||||
b2_re = -32'd1047703;
|
||||
b2_re = 32'd2146812530;
|
||||
b2_im = 32'd0;
|
||||
a3_re = 32'd0;
|
||||
a3_im = 32'd0;
|
||||
b3_re = -32'd0;
|
||||
b3_re = 32'd0;
|
||||
b3_im = 32'd0;
|
||||
a4_re = 32'd0;
|
||||
a4_im = 32'd0;
|
||||
b4_re = -32'd0;
|
||||
b4_re = 32'd0;
|
||||
b4_im = 32'd0;
|
||||
a5_re = 32'd0;
|
||||
a5_im = 32'd0;
|
||||
|
|
@ -552,6 +553,8 @@ always@(*)
|
|||
wire [15:0] diff;
|
||||
assign diff = cs_wave1 - cs_wave;
|
||||
integer signed In_fid;
|
||||
integer signed diff_fid;
|
||||
integer signed OrgOut_fid;
|
||||
integer X1_fid;
|
||||
integer X2_fid;
|
||||
integer X4_fid;
|
||||
|
|
@ -559,7 +562,9 @@ integer X8_fid;
|
|||
|
||||
initial begin
|
||||
#0;
|
||||
In_fid = $fopen("./in.dat");
|
||||
In_fid = $fopen("./in.dat");
|
||||
diff_fid = $fopen("./diff_in.dat");
|
||||
OrgOut_fid = $fopen("./OrgOut.dat");
|
||||
case (intp_mode)
|
||||
2'b00 : X1_fid = $fopen("./X1_data.dat");
|
||||
2'b01 : X2_fid = $fopen("./X2_data.dat");
|
||||
|
|
@ -570,9 +575,13 @@ initial begin
|
|||
end
|
||||
|
||||
|
||||
always@(posedge clk_div16_f)
|
||||
always@(posedge clk_l)
|
||||
if(cnt >= 90)
|
||||
$fwrite(In_fid,"%d\n",{{{~iir_in[15]}},iir_in[14:0]});
|
||||
begin
|
||||
$fwrite(In_fid,"%d\n",$signed(TB.inst1_Z_dsp.inst_TailCorr_top.din_r1));
|
||||
$fwrite(diff_fid,"%d\n",$signed(TB.inst1_Z_dsp.inst_TailCorr_top.IIRin_re));
|
||||
$fwrite(OrgOut_fid,"%d\n",$signed(TB.inst1_Z_dsp.inst_TailCorr_top.dout));
|
||||
end
|
||||
|
||||
|
||||
always@(*)
|
||||
|
|
|
|||
Loading…
Reference in New Issue