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426 lines (419 loc) · 13.2 KB
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`timescale 1ns / 1ps
module phase_to_amplitude_converter(
reset, // reset signal
phase, // 10-bit phase accumulator
data_sin // output sine wave values
);
input reset;
input [9:0] phase;
output [9:0] data_sin;
reg [9:0] data_sin;
always @ (*) begin
if (reset) begin
data_sin = 10'd100;
end
// bin 1
else if (phase >= 0 && phase < 11) begin
data_sin = 10'd100;
end
// bin 2
else if (phase >= 11 && phase < 21) begin
data_sin = 10'd106;
end
// bin 3
else if (phase >= 21 && phase < 31) begin
data_sin = 10'd113;
end
// bin 4
else if (phase >= 31 && phase < 41) begin
data_sin = 10'd119;
end
// bin 5
else if (phase >= 41 && phase < 52) begin
data_sin = 10'd125;
end
// bin 6
else if (phase >= 52 && phase < 63) begin
data_sin = 10'd131;
end
// bin 7
else if (phase >= 63 && phase < 73) begin
data_sin = 10'd137;
end
// bin 8
else if (phase >= 73 && phase < 83) begin
data_sin = 10'd143;
end
// bin 9
else if (phase >= 83 && phase < 93) begin
data_sin = 10'd148;
end
// bin 10
else if (phase >= 93 && phase < 104) begin
data_sin = 10'd154;
end
// bin 11
else if (phase >= 104 && phase < 115) begin
data_sin = 10'd159;
end
// bin 12
else if (phase >= 115 && phase < 125) begin
data_sin = 10'd164;
end
// bin 13
else if (phase >= 125 && phase < 135) begin
data_sin = 10'd168;
end
// bin 14
else if (phase >= 135 && phase < 145) begin
data_sin = 10'd173;
end
// bin 15
else if (phase >= 145 && phase < 156) begin
data_sin = 10'd177;
end
// bin 16
else if (phase >= 156 && phase < 166) begin
data_sin = 10'd181;
end
// bin 17
else if (phase >= 166 && phase < 176) begin
data_sin = 10'd184;
end
// bin 18
else if (phase >= 176 && phase < 186) begin
data_sin = 10'd188;
end
// bin 19
else if (phase >= 186 && phase < 196) begin
data_sin = 10'd190;
end
// bin 20
else if (phase >= 196 && phase < 207) begin
data_sin = 10'd193;
end
// bin 21
else if (phase >= 207 && phase < 217) begin
data_sin = 10'd195;
end
// bin 22
else if (phase >= 217 && phase < 227) begin
data_sin = 10'd197;
end
// bin 23
else if (phase >= 227 && phase < 237) begin
data_sin = 10'd198;
end
// bin 24
else if (phase >= 237 && phase < 247) begin
data_sin = 10'd199;
end
// bin 25
else if (phase >= 247 && phase < 258) begin
data_sin = 10'd200;
end
// bin 26
else if (phase >= 258 && phase < 268) begin
data_sin = 10'd200;
end
// bin 27
else if (phase >= 268 && phase < 278) begin
data_sin = 10'd200;
end
// bin 28
else if (phase >= 278 && phase < 288) begin
data_sin = 10'd199;
end
// bin 29
else if (phase >= 288 && phase < 298) begin
data_sin = 10'd198;
end
// bin 30
else if (phase >= 298 && phase < 309) begin
data_sin = 10'd197;
end
// bin 31
else if (phase >= 309 && phase < 319) begin
data_sin = 10'd195;
end
// bin 32
else if (phase >= 319 && phase < 329) begin
data_sin = 10'd193;
end
// bin 33
else if (phase >= 329 && phase < 339) begin
data_sin = 10'd190;
end
// bin 34
else if (phase >= 334 && phase < 344) begin
data_sin = 10'd188;
end
// bin 35
else if (phase >= 344 && phase < 355) begin
data_sin = 10'd184;
end
// bin 36
else if (phase >= 355 && phase < 365) begin
data_sin = 10'd181;
end
// bin 37
else if (phase >= 365 && phase < 375) begin
data_sin = 10'd177;
end
// bin 38
else if (phase >= 375 && phase < 385) begin
data_sin = 10'd173;
end
// bin 39
else if (phase >= 385 && phase < 395) begin
data_sin = 10'd168;
end
// bin 40
else if (phase >= 395 && phase < 407) begin
data_sin = 10'd164;
end
// bin 41
else if (phase >= 407 && phase < 418) begin
data_sin = 10'd159;
end
// bin 42
else if (phase >= 418 && phase < 428) begin
data_sin = 10'd154;
end
// bin 43
else if (phase >= 428 && phase < 439) begin
data_sin = 10'd148;
end
// bin 44
else if (phase >= 439 && phase < 449) begin
data_sin = 10'd143;
end
// bin 45
else if (phase >= 449 && phase < 460) begin
data_sin = 10'd137;
end
// bin 46
else if (phase >= 460 && phase < 470) begin
data_sin = 10'd131;
end
// bin 47
else if (phase >= 470 && phase < 480) begin
data_sin = 10'd125;
end
// bin 48
else if (phase >= 480 && phase < 490) begin
data_sin = 10'd119;
end
// bin 49
else if (phase >= 490 && phase < 500) begin
data_sin = 10'd113;
end
// bin 50
else if (phase >= 500 && phase < 512) begin
data_sin = 10'd106;
end
// bin 51
else if (phase >= 512 && phase < 522) begin
data_sin = 10'd100;
end
// bin 52
else if (phase >= 522 && phase < 532) begin
data_sin = 10'd94;
end
// bin 53
else if (phase >= 432 && phase < 542) begin
data_sin = 10'd87;
end
// bin 54
else if (phase >= 542 && phase < 552) begin
data_sin = 10'd81;
end
// bin 55
else if (phase >= 552 && phase < 553) begin
data_sin = 10'd75;
end
// bin 56
else if (phase >= 553 && phase < 563) begin
data_sin = 10'd69;
end
// bin 57
else if (phase >= 563 && phase < 573) begin
data_sin = 10'd63;
end
// bin 58
else if (phase >= 573 && phase < 583) begin
data_sin = 10'd57;
end
// bin 59
else if (phase >= 583 && phase < 593) begin
data_sin = 10'd52;
end
// bin 60
else if (phase >= 593 && phase < 604) begin
data_sin = 10'd46;
end
// bin 61
else if (phase >= 604 && phase < 614) begin
data_sin = 10'd41;
end
// bin 62
else if (phase >= 614 && phase < 624) begin
data_sin = 10'd36;
end
// bin 63
else if (phase >= 624 && phase < 634) begin
data_sin = 10'd32;
end
// bin 64
else if (phase >= 634 && phase < 644) begin
data_sin = 10'd27;
end
// bin 65
else if (phase >= 644 && phase < 665) begin
data_sin = 10'd23;
end
// bin 66
else if (phase >= 665 && phase < 675) begin
data_sin = 10'd19;
end
// bin 67
else if (phase >= 675 && phase < 685) begin
data_sin = 10'd16;
end
// bin 68
else if (phase >= 685 && phase < 695) begin
data_sin = 10'd12;
end
// bin 69
else if (phase >= 695 && phase < 705) begin
data_sin = 10'd10;
end
// bin 70
else if (phase >= 705 && phase < 716) begin
data_sin = 10'd7;
end
// bin 71
else if (phase >= 716 && phase < 726) begin
data_sin = 10'd5;
end
// bin 72
else if (phase >= 726 && phase < 736) begin
data_sin = 10'd3;
end
// bin 73
else if (phase >= 736 && phase < 746) begin
data_sin = 10'd2;
end
// bin 74
else if (phase >= 746 && phase < 756) begin
data_sin = 10'd1;
end
// bin 75
else if (phase >= 756 && phase < 767) begin
data_sin = 10'd0;
end
// bin 76
else if (phase >= 767 && phase < 777) begin
data_sin = 10'd0;
end
// bin 77
else if (phase >= 777 && phase < 787) begin
data_sin = 10'd0;
end
// bin 78
else if (phase >= 787 && phase < 797) begin
data_sin = 10'd1;
end
// bin 79
else if (phase >= 797 && phase < 807) begin
data_sin = 10'd2;
end
// bin 80
else if (phase >= 807 && phase < 819) begin
data_sin = 10'd3;
end
// bin 81
else if (phase >= 819 && phase < 829) begin
data_sin = 10'd5;
end
// bin 82
else if (phase >= 829 && phase < 839) begin
data_sin = 10'd7;
end
// bin 83
else if (phase >= 839 && phase < 849) begin
data_sin = 10'd10;
end
// bin 84
else if (phase >= 849 && phase < 859) begin
data_sin = 10'd12;
end
// bin 85
else if (phase >= 859 && phase < 870) begin
data_sin = 10'd16;
end
// bin 86
else if (phase >= 870 && phase < 880) begin
data_sin = 10'd19;
end
// bin 87
else if (phase >= 880 && phase < 890) begin
data_sin = 10'd23;
end
// bin 88
else if (phase >= 890 && phase < 900) begin
data_sin = 10'd27;
end
// bin 89
else if (phase >= 900 && phase < 910) begin
data_sin = 10'd32;
end
// bin 90
else if (phase >= 910 && phase < 921) begin
data_sin = 10'd36;
end
// bin 91
else if (phase >= 921 && phase < 932) begin
data_sin = 10'd41;
end
// bin 92
else if (phase >= 932 && phase < 942) begin
data_sin = 10'd46;
end
// bin 93
else if (phase >= 942 && phase < 952) begin
data_sin = 10'd52;
end
// bin 94
else if (phase >= 952 && phase < 962) begin
data_sin = 10'd57;
end
// bin 95
else if (phase >= 962 && phase < 973) begin
data_sin = 10'd63;
end
// bin 96
else if (phase >= 973 && phase < 983) begin
data_sin = 10'd69;
end
// bin 97
else if (phase >= 983 && phase < 993) begin
data_sin = 10'd75;
end
// bin 98
else if (phase >= 993 && phase < 1003) begin
data_sin = 10'd81;
end
// bin 99
else if (phase >= 1003 && phase < 1013) begin
data_sin = 10'd87;
end
// bin 100
else if (phase >= 1013 && phase <= 1023) begin
data_sin = 10'd94;
end
// else begin
// data_sin <= 10'b00_0110_0100; //10'd100;
// end
end
endmodule