OpenCores
URL https://opencores.org/ocsvn/dmt_tx/dmt_tx/trunk

Subversion Repositories dmt_tx

Compare Revisions

  • This comparison shows the changes necessary to convert path 
    /
    from Rev 21 to Rev 22
    ↔ Reverse comparison
  •

Rev 21 → Rev 22

/trunk/const_encoder/rtl/const_enc.v
171,7 → 171,7
4'b0011: begin // #3
case (cin[2:0])
3'b000: begin x_o <= 9'b000000001; y_o <= 9'b000000011; end
3'b000: begin x_o <= 9'b000000001; y_o <= 9'b000000001; end
3'b001: begin x_o <= 9'b000000001; y_o <= 9'b111111111; end
3'b010: begin x_o <= 9'b111111111; y_o <= 9'b000000001; end
3'b011: begin x_o <= 9'b111111111; y_o <= 9'b111111111; end
184,14 → 184,14
end
4'b0100: begin // #4
x_o <= {cin[2], cin[2], cin[2], cin[2], cin[2], cin[2], cin[2], cin[0], 1'b1};
y_o <= {cin[3], cin[3], cin[3], cin[3], cin[3], cin[3], cin[3], cin[1], 1'b1};
x_o <= {cin[3], cin[3], cin[3], cin[3], cin[3], cin[3], cin[3], cin[1], 1'b1};
y_o <= {cin[2], cin[2], cin[2], cin[2], cin[2], cin[2], cin[2], cin[0], 1'b1};
end
4'b0101: begin // #5
map_msb(cin[4:0], msb_x, msb_y);
x_o <= {msb_x[1], msb_x[1], msb_x[1], msb_x[1], msb_x[1], msb_x[1], msb_x[0], 1'b1};
y_o <= {msb_y[1], msb_y[1], msb_y[1], msb_y[1], msb_y[1], msb_y[1], msb_y[0], 1'b1};
x_o <= {msb_x[1], msb_x[1], msb_x[1], msb_x[1], msb_x[1], msb_x[1], msb_x[0], cin[1], 1'b1};
y_o <= {msb_y[1], msb_y[1], msb_y[1], msb_y[1], msb_y[1], msb_y[1], msb_y[0], cin[0], 1'b1};
end
4'b0110: begin // #6
/trunk/const_encoder/tb/const_map_data.v
1,4 → 1,9
 
// ///////////////////////////////////////////////////////////////////
//
// 2 -bit constellation map
//
// ///////////////////////////////////////////////////////////////////
module const_map_2bit;
 
`include "parameters.vh"
14,5 → 19,115
re[3] = -1; im[3] = -1;
end
 
endmodule
 
 
// ///////////////////////////////////////////////////////////////////
//
// 3 -bit constellation map
//
// ///////////////////////////////////////////////////////////////////
module const_map_3bit;
 
`include "parameters.vh"
 
reg signed [CONSTW-1:0] re [0:7];
reg signed [CONSTW-1:0] im [0:7];
 
 
initial begin
re[0] = 1; im[0] = 1;
re[1] = 1; im[1] = -1;
re[2] = -1; im[2] = 1;
re[3] = -1; im[3] = -1;
re[4] = -3; im[4] = 1;
re[5] = 1; im[5] = 3;
re[6] = -1; im[6] = -3;
re[7] = 3; im[7] = -1;
end
 
endmodule
 
// ///////////////////////////////////////////////////////////////////
//
// 4 -bit constellation map
//
// ///////////////////////////////////////////////////////////////////
module const_map_4bit;
 
`include "parameters.vh"
 
reg signed [CONSTW-1:0] re [0:15];
reg signed [CONSTW-1:0] im [0:15];
 
 
initial begin
re[0] = 1; im[0] = 1;
re[1] = 1; im[1] = 3;
re[2] = 3; im[2] = 1;
re[3] = 3; im[3] = 3;
re[4] = 1; im[4] = -3;
re[5] = 1; im[5] = -1;
re[6] = 3; im[6] = -3;
re[7] = 3; im[7] = -1;
re[8] = -3; im[8] = 1;
re[9] = -3; im[9] = 3;
re[10] = -1; im[10] = 1;
re[11] = -1; im[11] = 3;
re[12] = -3; im[12] = -3;
re[13] = -3; im[13] = -1;
re[14] = -1; im[14] = -3;
re[15] = -1; im[15] = -1;
end
 
endmodule
 
// ///////////////////////////////////////////////////////////////////
//
// 5 -bit constellation map
//
// ///////////////////////////////////////////////////////////////////
module const_map_5bit;
 
`include "parameters.vh"
 
reg signed [CONSTW-1:0] re [0:31];
reg signed [CONSTW-1:0] im [0:31];
 
 
initial begin
re[0] = 1; im[0] = 1;
re[1] = 1; im[1] = 3;
re[2] = 3; im[2] = 1;
re[3] = 3; im[3] = 3;
re[4] = 1; im[4] = -3;
re[5] = 1; im[5] = -1;
re[6] = 3; im[6] = -3;
re[7] = 3; im[7] = -1;
re[8] = -3; im[8] = 1;
re[9] = -3; im[9] = 3;
re[10] = -1; im[10] = 1;
re[11] = -1; im[11] = 3;
re[12] = -3; im[12] = -3;
re[13] = -3; im[13] = -1;
re[14] = -1; im[14] = -3;
re[15] = -1; im[15] = -1;
re[16] = 5; im[16] = 1;
re[17] = 5; im[17] = 3;
re[18] = -5; im[18] = 1;
re[19] = -5; im[19] = 3;
re[20] = 1; im[20] = 5;
re[21] = 1; im[21] = -5;
re[22] = 3; im[22] = 5;
re[23] = 3; im[23] = -5;
re[24] = -3; im[24] = 5;
re[25] = -3; im[25] = -5;
re[26] = -1; im[26] = 5;
re[27] = -1; im[27] = -5;
re[28] = 5; im[28] = -3;
re[29] = 5; im[29] = -1;
re[30] = -5; im[30] = -3;
re[31] = -5; im[31] = -1;
end
 
endmodule
/trunk/const_encoder/tb/tb_const_enc.v
71,6 → 71,9
// instantiate test data modules
//
const_map_2bit cm_2bit();
const_map_3bit cm_3bit();
const_map_4bit cm_4bit();
const_map_5bit cm_5bit();
 
 
initial begin
141,6 → 144,9
// checking the constellation map
//
check_const_map(2);
check_const_map(3);
check_const_map(4);
check_const_map(5);
#1000 $finish();
 
245,10 → 251,12
dut.cin <= i;
 
@ (posedge clk);
@ (posedge clk);
@ (negedge clk);
// compare output with expected result
case (bit)
1: $display("%d bit is not support constellation size", bit);
 
2: begin
if(cm_2bit.re[i] !== x_o) begin
$display("Input: %d --> x_o expected: %d got: %d", i, cm_2bit.re[i], x_o);
257,6 → 265,35
$display("Input: %d --> y_o expected: %d got: %d", i, cm_2bit.im[i], y_o);
end
end
3: begin
if(cm_3bit.re[i] !== x_o) begin
$display("Input: %d --> x_o expected: %d got: %d", i, cm_3bit.re[i], x_o);
end
if(cm_3bit.im[i] !== y_o) begin
$display("Input: %d --> y_o expected: %d got: %d", i, cm_3bit.im[i], y_o);
end
end
4: begin
if(cm_4bit.re[i] !== x_o) begin
$display("Input: %d --> x_o expected: %d got: %d", i, cm_4bit.re[i], x_o);
end
if(cm_4bit.im[i] !== y_o) begin
$display("Input: %d --> y_o expected: %d got: %d", i, cm_4bit.im[i], y_o);
end
end
5: begin
if(cm_5bit.re[i] !== x_o) begin
$display($time, " Input: %d --> x_o expected: %d got: %d", i, cm_5bit.re[i], x_o);
end
if(cm_5bit.im[i] !== y_o) begin
$display($time, " Input: %d --> y_o expected: %d got: %d", i, cm_5bit.im[i], y_o);
end
end
 
 
default: $display("%d is not an implemented bit size", bit);
endcase

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.