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phase4_faisal_solid.v
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`define NUM_LEDS 10
//=============================================
// DFF
//=============================================
module DFF(clk,in,out);
parameter n=1;//width
input clk;
input [n-1:0] in;
output [n-1:0] out;
reg [n-1:0] out;
always @(posedge clk)
out = in;
endmodule
module ColorTable (color_code, r, g, b);
input [3:0] color_code;
output reg [7:0] r, g, b;
always @(*) begin
case(color_code) //Adapted from Apple 16 color palette: https://en.wikipedia.org/wiki/List_of_software_palettes#Apple_Macintosh_default_16-color_palette
0: begin //white
r = 255;
g = 255;
b = 255;
end
1: begin //yellow
r = 255;
g = 255;
b = 0;
end
2: begin //orange
r = 255;
g = 100;
b = 0;
end
3: begin //red
r = 255;
g = 0;
b = 0;
end
4: begin //pink
r = 255;
g = 0;
b = 255;
end
5: begin //purple
r = 100;
g = 0;
b = 255;
end
6: begin //blue
r = 0;
g = 0;
b = 255;
end
7: begin
r = 0;
g = 255;
b = 255;
end
8: begin
r = 0;
g = 255;
b = 0;
end
9: begin
r = 0;
g = 100;
b = 0;
end
default: begin
r = 0;
g = 0;
b = 0;
end
endcase
end
endmodule
module SolidColor (brightness, color_code, solid_color);
input [3:0] brightness;
input [3:0] color_code;
output reg [23:0] solid_color;
wire [7:0] r, g, b;
reg [7:0] diff;
ColorTable ct(color_code, r, g, b);
always @(*) begin
diff = 15 - brightness;
solid_color[7:0] = (17*diff > b) ? 8'b0 : b - (17*diff);
solid_color[15:8] = (17*diff > g) ? 8'b0 : g - (17*diff);
solid_color[23:16] = (17*diff > r) ? 8'b0 : r - (17*diff);
end
endmodule
module FlashingColor (brightness, color_code, previous, flashed_color);
input [3:0] brightness;
input [3:0] color_code;
input [23:0] previous;
output reg [23:0] flashed_color;
wire [7:0] r, g, b;
reg [7:0] diff;
ColorTable ct(color_code, r, g, b);
always @(*) begin
diff = 15 - brightness;
flashed_color[7:0] = (17*diff > b) ? 8'b0 : b - (17*diff);
flashed_color[15:8] = (17*diff > g) ? 8'b0 : g - (17*diff);
flashed_color[23:16] = (17*diff > r) ? 8'b0 : r - (17*diff);
flashed_color = (previous == 0) ? flashed_color : 0;
end
endmodule
module Dec4x16(binary,onehot);
input [3:0] binary;
output [15:0] onehot;
assign onehot[ 0]=~binary[3]&~binary[2]&~binary[1]&~binary[0];
assign onehot[ 1]=~binary[3]&~binary[2]&~binary[1]& binary[0];
assign onehot[ 2]=~binary[3]&~binary[2]& binary[1]&~binary[0];
assign onehot[ 3]=~binary[3]&~binary[2]& binary[1]& binary[0];
assign onehot[ 4]=~binary[3]& binary[2]&~binary[1]&~binary[0];
assign onehot[ 5]=~binary[3]& binary[2]&~binary[1]& binary[0];
assign onehot[ 6]=~binary[3]& binary[2]& binary[1]&~binary[0];
assign onehot[ 7]=~binary[3]& binary[2]& binary[1]& binary[0];
assign onehot[ 8]= binary[3]&~binary[2]&~binary[1]&~binary[0];
assign onehot[ 9]= binary[3]&~binary[2]&~binary[1]& binary[0];
assign onehot[10]= binary[3]&~binary[2]& binary[1]&~binary[0];
assign onehot[11]= binary[3]&~binary[2]& binary[1]& binary[0];
assign onehot[12]= binary[3]& binary[2]&~binary[1]&~binary[0];
assign onehot[13]= binary[3]& binary[2]&~binary[1]& binary[0];
assign onehot[14]= binary[3]& binary[2]& binary[1]&~binary[0];
assign onehot[15]= binary[3]& binary[2]& binary[1]& binary[0];
endmodule
module Mux16to1(channels, select, b);
input [15:0][23:0] channels;
input [15:0] select;
output [31:0] b;
assign b = ({32{select[15]}} & channels[15]) |
({32{select[14]}} & channels[14]) |
({32{select[13]}} & channels[13]) |
({32{select[12]}} & channels[12]) |
({32{select[11]}} & channels[11]) |
({32{select[10]}} & channels[10]) |
({32{select[ 9]}} & channels[ 9]) |
({32{select[ 8]}} & channels[ 8]) |
({32{select[ 7]}} & channels[ 7]) |
({32{select[ 6]}} & channels[ 6]) |
({32{select[ 5]}} & channels[ 5]) |
({32{select[ 4]}} & channels[ 4]) |
({32{select[ 3]}} & channels[ 3]) |
({32{select[ 2]}} & channels[ 2]) |
({32{select[ 1]}} & channels[ 1]) |
({32{select[ 0]}} & channels[ 0]) ;
endmodule
module RGBController (
clk,
mode,
brightness,
color_code,
color_out,
);
input clk;
input [1:0] mode;
input [3:0] brightness;
input [3:0] color_code;
reg [15:0] input2;
wire [15:0] [23:0] channels;
wire [15:0] onehotMux;
wire [31:0] muxout;
wire [31:0] outval;
wire [23:0] feedback;
wire [23:0] solid_color;
wire [23:0] flashing_color;
wire [23:0] rainbow_color;
DFF #(32) Accumulator(clk,muxout,outval);
output [23:0] color_out;
reg [23:0] color_out;
Dec4x16 decode(mode, onehotMux);
Mux16to1 mux(channels, onehotMux, muxout);
SolidColor solid(brightness, color_code, solid_color);
FlashingColor flash(brightness, color_code, feedback, flashing_color);
//RainbowColor rainbow(brightness, feedback);
assign channels[ 0] = 24'b0; //Off
assign channels[ 1] = solid_color[23:0]; //solid
assign channels[ 2] = flashing_color;
// assign channels[ 3] = quotient;
// assign channels[ 4] = remainder;
// assign channels[ 5] = andout;
// assign channels[ 6] = orout;
// assign channels[ 7] = nandout;
// assign channels[ 8] = norout;
// assign channels[ 9] = xorout;
// assign channels[ 10] = xnorout;
// assign channels[ 11] = notout;
//assign channels[ 12] = 32'b11111111111111111111111111111111;
//assign channels[ 13] = 32'b00000000000000000000000000000000;
assign channels[ 14] = feedback;
assign feedback = outval[23:0];
always@(*)
begin
color_out = muxout;
end
endmodule
module BreadBoard(
clk,
mode,
brightness,
color_code,
strip,
);
input clk;
input [1:0] mode;
input [3:0] brightness;
input [3:0] color_code;
wire [23:0] light;
output [`NUM_LEDS:0][23:0] strip;
reg [3:0] i;
RGBController leds [`NUM_LEDS:0](
.clk(clk),
.mode(mode),
.brightness(brightness),
.color_code(color_code),
.color_out(strip));
endmodule
module Testbench (
);
reg [1:0] mode;
reg [3:0] brightness;
reg [3:0] color_code;
wire [`NUM_LEDS:0][23:0] strip;
reg [3:0] i, x;
reg clk;
BreadBoard BB(
.clk(clk),
.mode(mode),
.brightness(brightness),
.color_code(color_code),
.strip(strip));
initial begin
forever begin
clk = 0;
#5;
clk = 1;
#5;
end
end
initial begin
//$display acts like a classic C printf command.
//$display ("Begin test #1");
//Initial
//$display ("[Input:%6d, Feedback: %6d] [OpCode:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
$display ("On");
//Init
mode = 0;
brightness = 4'b1111;
color_code = 4'b0000;
#5;
for (i = 0; i < `NUM_LEDS; i++)
begin
$display ("Led %d: %h", i, strip[i]);
end
$display ("set mode solid");
mode = 1;
color_code = 4'b0000;
#5;
for (i = 0; i < `NUM_LEDS ; i++)
begin
$display ("Led %d: %h", i, strip[i]);
end
$display ("Set color 0101");
brightness = 4'b1111;
color_code = 4'b0101;
#5;
for (i = 0; i < `NUM_LEDS ; i++)
begin
$display ("Led %d: %h", i, strip[i]);
end
$display ("Adjust brightness");
brightness = 4'b1001;
#5;
for (i = 0; i < `NUM_LEDS ; i++)
begin
$display ("Led %d: %h", i, strip[i]);
end
$display ("Set flashing");
mode = 2;
brightness = 4'b1111;
color_code = 4'b0000;
for (x = 0; x < 4; x++)
begin
#10;
for (i = 0; i < `NUM_LEDS; i++)
begin
$display ("Led %d: %h", i, strip[i]);
end
end
// //No Op
// input1 = 0;
// op_code = 4'b1110;
// #10;
// $display ("[Input:%6d, Feedback: %6d] [NoOp:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //Add
// input1 = 7;
// op_code = 4'b0000;
// #5; //FOR SOME REASON THIS HAS TO BE 5 OR ELSE THE PROGRAM DOESNT WORK PROPERLY
// $display ("[Input A:%6d, Feedback: %6d] [Add:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //Sub
// input1 = 3;
// op_code = 4'b0001;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [Sub:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //Mul
// input1 = 250;
// op_code = 4'b0010;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [Mul:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //Div
// input1 = 32;
// op_code = 4'b0011;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [Div:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //Mod
// input1 = 4;
// op_code = 4'b0100;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [Mod:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //AND
// input1 = 32;
// op_code = 4'b0101;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [AND:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //OR
// input1 = 42;
// op_code = 4'b0110;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [OR:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //NOT
// input1 = 0;
// op_code = 4'b1011;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [NOT:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //XOR
// input1 = 65535;
// op_code = 4'b1001;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [XOR:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //XNOR
// input1 = 65525;
// op_code = 4'b1010;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [XNOR:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //NAND
// input1 = 65535;
// op_code = 4'b0111;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [NAND:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //NOR
// input1 = 65535;
// op_code = 4'b1000;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [NOR:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// //Preset
// input1 = 0;
// op_code = 4'b1100;
// #10;
// $display ("[Input A:%6d, Feedback: %6d] [Preset:%b] [output:%11d, Error:%b] ", input1, BB.feedback, op_code, output1, err_code);
// $display ("Begin test #1");
// input1 = 65000;
// //input2 = 65000;
// op_code = 4'b0000;
// #50;
// $display ("[Input A:%6d, Input B: %6d] [Add:%b] [output:%11d, Error:%b] ", input1, op_code, output1, err_code);
// $display ("Begin test #2");
// input1 = 32000;
// //input2 = 16000;
// op_code = 4'b0001;
// #50;
// $display ("[Input A:%6d, Input B: %6d] [Sub:%b] [output:%11d, Error:%b] ", input1, op_code, output1, err_code);
// $display ("Begin test #3");
// input1 = 32000;
// //input2 = 16000;
// op_code = 4'b0010;
// #50;
// $display ("[Input A:%6d, Input B: %6d] [Mul:%b] [output:%11d, Error:%b] ", input1, op_code, output1, err_code);
// $display ("Begin test #4");
// input1 = 32000;
// //input2 = 16000;;
// op_code = 4'b0011;
// #50;
// $display ("[Input A:%6d, Input B: %6d] [Div:%b] [output:%11d, Error:%b] ", input1, op_code, output1, err_code);
// $display ("Begin test #5");
// input1 = 32000;
// //input2 = 16000;
// op_code = 4'b0100;
// #50;
// $display ("[Input A:%6d, Input B: %6d] [Mod:%b] [output:%11d, Error:%b] ", input1, op_code, output1, err_code);
$finish;
end
endmodule