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authorMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
committerMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
commitfd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch)
tree3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/sdr_lib/hb_tb.v
parent3b66804e41891e358c790b453a7a59ec7462dba4 (diff)
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Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/sdr_lib/hb_tb.v')
-rw-r--r--fpga/usrp2/sdr_lib/hb_tb.v172
1 files changed, 0 insertions, 172 deletions
diff --git a/fpga/usrp2/sdr_lib/hb_tb.v b/fpga/usrp2/sdr_lib/hb_tb.v
deleted file mode 100644
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--- a/fpga/usrp2/sdr_lib/hb_tb.v
+++ /dev/null
@@ -1,172 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module hb_tb();
-
- localparam SWIDTH = 17;
- localparam CWIDTH = 18;
- localparam TWIDTH = 20;
- localparam ACC_WIDTH = 40;
-
- reg clk = 0, rst = 1;
- wire strobe_in, strobe_out;
- reg [SWIDTH-1:0] sample_in;
- wire signed [SWIDTH:0] sample_out;
-
- reg set_stb;
- reg [7:0] set_addr;
- reg [31:0] set_data;
-
- localparam DECIM = 3;
-
- initial $dumpfile("hb_tb.vcd");
- initial $dumpvars(0,hb_tb);
-
- always #5 clk <= ~clk;
- initial
- begin
- @(posedge clk);
- @(negedge clk);
- rst <= 0;
- end
-
- reg [7:0] stb_counter;
- always @(posedge clk)
- if(rst)
- stb_counter <= 0;
- else
- if(stb_counter == 0)
- stb_counter <= DECIM;
- else
- stb_counter <= stb_counter - 1;
- assign strobe_in = (stb_counter == 0);
-
- hb_decim #(.SWIDTH(SWIDTH),.CWIDTH(CWIDTH),
- .TWIDTH(TWIDTH),.ACC_WIDTH(ACC_WIDTH)) hb_decim
- (.clk(clk), .rst(rst),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .sample_in(sample_in),
- .strobe_in(strobe_in),
- .sample_out(sample_out),
- .strobe_out(strobe_out)
- );
-
- initial
- begin : load_coeffs
- @(negedge rst);
- @(posedge clk);
- set_addr <= 124; // load coeffs
- set_stb <= 1;
- set_data <= -18'd49;
- @(posedge clk);
- set_data <= 18'd165;
- @(posedge clk);
- set_data <= -18'd412;
- @(posedge clk);
- set_data <= 18'd873;
- @(posedge clk);
- set_data <= -18'd1681;
- @(posedge clk);
- set_data <= 18'd3135;
- @(posedge clk);
- set_data <= -18'd6282;
- @(posedge clk);
- set_data <= 18'd20628;
- @(posedge clk);
- set_addr <=125; // load table
- // { stb_out, accum, load_accum, done, even_addr, odd_addr_a, odd_addr_b, coeff_addr }
- set_data <= {1'b1,1'b1,1'b0,1'b1,4'd15,4'd15,4'd0,4'd0}; // Phase 8
- @(posedge clk);
- set_data <= {1'b0,1'b1,1'b0,1'b0,4'd15,4'd14,4'd1,4'd1}; // Phase 7
- @(posedge clk);
- set_data <= {1'b0,1'b1,1'b0,1'b0,4'd15,4'd13,4'd2,4'd2}; // Phase 6
- @(posedge clk);
- set_data <= {1'b0,1'b1,1'b0,1'b0,4'd15,4'd12,4'd3,4'd3}; // Phase 5
- @(posedge clk);
- set_data <= {1'b0,1'b1,1'b0,1'b0,4'd15,4'd11,4'd4,4'd4}; // Phase 4
- @(posedge clk);
- set_data <= {1'b0,1'b1,1'b0,1'b0,4'd15,4'd10,4'd5,4'd5}; // Phase 3
- @(posedge clk);
- set_data <= {1'b0,1'b1,1'b0,1'b0,4'd15,4'd9,4'd6,4'd6}; // Phase 2
- @(posedge clk);
- set_data <= {1'b0,1'b0,1'b1,1'b0,4'd15,4'd8,4'd7,4'd7}; // Phase 1
- @(posedge clk);
- set_data <= {1'b0,1'b0,1'b0,1'b0,4'd15,4'd8,4'd7,4'd7}; // Phase 0
- @(posedge clk);
- set_stb <= 0;
- end // block: load_coeffs
-
- initial
- begin
- sample_in <= 0;
- repeat(40)
- @(posedge strobe_in);
- $display("EVEN");
- sample_in <= 0;
- repeat(10)
- @(posedge strobe_in);
- sample_in <= 1;
- @(posedge strobe_in);
- sample_in <= 0;
- repeat(40)
- @(posedge strobe_in);
- sample_in <= 1;
- repeat(40)
- @(posedge strobe_in);
- sample_in <= 0;
- repeat(60)
- @(posedge strobe_in);
- sample_in <= 1;
- repeat(2)
- @(posedge strobe_in);
- sample_in <= 0;
- repeat(60)
- @(posedge strobe_in);
- $display("ODD");
- sample_in <= 0;
- repeat(10)
- @(posedge strobe_in);
- sample_in <= 1;
- @(posedge strobe_in);
- sample_in <= 0;
- repeat(40)
- @(posedge strobe_in);
- sample_in <= 1;
- repeat(40)
- @(posedge strobe_in);
- sample_in <= 0;
- repeat(60)
- @(posedge strobe_in);
- sample_in <= 1;
- repeat(2)
- @(posedge strobe_in);
- sample_in <= 0;
- repeat(60)
- @(posedge strobe_in);
- $finish;
- end
-
- always @(posedge clk)
- if(strobe_in)
- $display(sample_in);
-
- always @(posedge clk)
- if(strobe_out)
- $display("\t",sample_out);
-
-endmodule // hb_tb