forked from tanchou/Verilog
Add distance_ws2812_display module and testbench; implement ws2812_driver for LED control
This commit is contained in:
Gamenight77
@@ -2,10 +2,9 @@ module ultrasonic_fpga #(
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parameter integer CLK_FREQ = 27_000_000 // Fréquence d'horloge en Hz
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)(
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input wire clk,
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input wire rst,
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input wire start,
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inout wire sig, // Broche bidirectionnelle vers le capteur
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output reg [15:0] distance_cm // Distance mesurée en cm
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output reg [15:0] distance // Distance mesurée en cm
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);
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reg [2:0] state;
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@@ -22,68 +21,95 @@ module ultrasonic_fpga #(
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TRIG_LOW = 3'd2,
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WAIT_ECHO = 3'd3,
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MEASURE_ECHO = 3'd4,
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DONE = 3'd5;
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DONE = 3'd5,
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WAIT_NEXT = 3'd6;
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localparam integer TRIG_PULSE_CYCLES = CLK_FREQ / 100_000; // 10us pulse
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localparam integer DIST_DIVISOR = (58 * CLK_FREQ) / 1_000_000; // pour conversion us -> cm
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localparam integer MAX_CM = 370;
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localparam integer TIMEOUT_CYCLES = (MAX_CM * 58 * CLK_FREQ) / 1_000_000;
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localparam WAIT_NEXT_CYCLES = (CLK_FREQ / 1000) * 100; // 60 ms
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always @(posedge clk or posedge rst) begin
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if (rst) begin
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state <= IDLE;
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trig_counter <= 0;
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echo_counter <= 0;
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sig_out <= 0;
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sig_dir <= 0;
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distance_cm <= 0;
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end else begin
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case (state)
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IDLE: begin
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sig_out <= 0;
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sig_dir <= 1;
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if (start) begin
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state <= TRIG_HIGH;
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trig_counter <= 0;
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end
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reg [31:0] wait_counter;
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always @(posedge clk) begin
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case (state)
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IDLE: begin
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sig_out <= 0;
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sig_dir <= 1;
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distance <= 0;
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if (start) begin
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state <= TRIG_HIGH;
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trig_counter <= 0;
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end
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end
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TRIG_HIGH: begin
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sig_out <= 1;
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sig_dir <= 1;
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if (trig_counter < TRIG_PULSE_CYCLES) begin
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trig_counter <= trig_counter + 1;
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end else begin
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trig_counter <= 0;
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state <= TRIG_LOW;
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end
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TRIG_HIGH: begin
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sig_out <= 1;
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sig_dir <= 1;
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if (trig_counter < TRIG_PULSE_CYCLES) begin
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trig_counter <= trig_counter + 1;
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end else begin
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trig_counter <= 0;
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state <= TRIG_LOW;
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end
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end
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TRIG_LOW: begin
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sig_out <= 0;
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sig_dir <= 0; // Mettre en entrée
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state <= WAIT_ECHO;
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TRIG_LOW: begin
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sig_out <= 0;
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sig_dir <= 0; // Mettre en entrée
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state <= WAIT_ECHO;
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end
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WAIT_ECHO: begin
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if (sig_in) begin
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echo_counter <= 0;
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state <= MEASURE_ECHO;
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end else if (echo_counter >= TIMEOUT_CYCLES) begin
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distance <= 0;
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state <= DONE;
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end else begin
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echo_counter <= echo_counter + 1;
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end
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end
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WAIT_ECHO: begin
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if (sig_in) begin
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echo_counter <= 0;
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state <= MEASURE_ECHO;
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end
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end
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MEASURE_ECHO: begin
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if (sig_in) begin
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MEASURE_ECHO: begin
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if (sig_in) begin
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if (echo_counter < TIMEOUT_CYCLES) begin
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echo_counter <= echo_counter + 1;
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end else begin
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distance_cm <= (echo_counter * 1000) / DIST_DIVISOR;
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distance <= 0;
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state <= DONE;
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end
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end else begin
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distance <= (echo_counter * 1000) / DIST_DIVISOR;
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state <= DONE;
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end
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end
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DONE: begin
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DONE: begin
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if (start) begin
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wait_counter <= 0;
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state <= WAIT_NEXT;
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end else begin
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state <= IDLE;
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end
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endcase
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end
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end
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WAIT_NEXT: begin
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wait_counter <= wait_counter + 1;
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if (wait_counter >= WAIT_NEXT_CYCLES) begin
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state <= TRIG_HIGH;
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end
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end
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endcase
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end
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endmodule
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@@ -0,0 +1,27 @@
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module distance_ws2812_display(
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input wire clk,
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input wire [8:0] distance, // distance mesurer
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output wire ws2812_dout // broche de données pour la LED WS2812
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);
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reg [23:0] led_color; // couleur à envoyer à la LED (format RGB)
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always @(posedge clk) begin
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// Mapper la distance sur une couleur
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if (distance < 100) begin
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led_color <= 24'hFF0000; // Rouge (proche)
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end else if (distance < 200) begin
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led_color <= 24'hFFFF00; // Jaune (distance moyenne)
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end else begin
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led_color <= 24'h00FF00; // Vert (très loin)
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end
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end
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// Instance du module de transmission pour WS2812
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ws2812_driver ws2812_inst (
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.clk(clk),
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.color(led_color),
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.ws2812_dout(ws2812_dout)
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);
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endmodule
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@@ -0,0 +1,441 @@
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$date
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Wed Apr 16 16:42:16 2025
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$end
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$version
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Icarus Verilog
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$end
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$timescale
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1s
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$end
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$scope module tb_distance_ws2812_display $end
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$var wire 1 ! ws2812_dout $end
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$var reg 1 " clk $end
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$var reg 9 # distance [8:0] $end
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$var integer 32 $ i [31:0] $end
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$scope module uut $end
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$var wire 1 " clk $end
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$var wire 9 % distance [8:0] $end
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$var wire 1 ! ws2812_dout $end
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$var reg 24 & led_color [23:0] $end
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$scope module ws2812_inst $end
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$var wire 1 " clk $end
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$var wire 24 ' color [23:0] $end
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$var reg 8 ( bit_count [7:0] $end
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$var reg 24 ) shift_reg [23:0] $end
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$var reg 1 ! ws2812_dout $end
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$upscope $end
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$upscope $end
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$upscope $end
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$enddefinitions $end
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$comment Show the parameter values. $end
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$dumpall
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$end
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#0
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$dumpvars
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bx )
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bx (
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bx '
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bx &
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b0 %
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b0 $
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b0 #
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0"
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x!
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$end
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#5
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b0 (
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bx0 )
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b111111110000000000000000 &
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b111111110000000000000000 '
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1"
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#10
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0"
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b1010 #
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b1010 %
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b1010 $
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#15
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b1 (
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0!
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b111111110000000000000000 )
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1"
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#20
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0"
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b10100 #
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b10100 %
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b10100 $
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#25
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b10 (
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b111111100000000000000000 )
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1!
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1"
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0"
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b11110 #
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b11110 %
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b11110 $
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#35
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b11 (
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b111111000000000000000000 )
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1"
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0"
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b101000 #
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b101000 %
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b101000 $
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b100 (
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b111110000000000000000000 )
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1"
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0"
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b110010 #
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b110010 %
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b110010 $
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#55
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b101 (
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b111100000000000000000000 )
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1"
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0"
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b111100 #
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b111100 %
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b111100 $
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b110 (
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b111000000000000000000000 )
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1"
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0"
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b1000110 #
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b1000110 %
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b1000110 $
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b111 (
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b110000000000000000000000 )
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1"
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0"
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b1010000 #
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b1010000 %
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b1010000 $
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b1000 (
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b100000000000000000000000 )
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1"
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0"
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b1011010 #
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b1011010 %
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b1001 (
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b0 )
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1"
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b1100100 %
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b1100100 $
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b1010 (
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0!
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b111111111111111100000000 &
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b111111111111111100000000 '
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1"
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b1011 (
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b1111000 %
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b1111000 $
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b1100 (
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#135
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b1101 (
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1"
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b10001100 %
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b10001100 $
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b1110 (
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1"
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b10010110 %
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b10010110 $
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b1111 (
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1"
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b10100000 #
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b10100000 %
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b10100000 $
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b10000 (
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b10101010 %
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b10101010 $
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b10001 (
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b10010 (
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b10111110 %
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b10111110 $
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b10011 (
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b11001000 #
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b11001000 %
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b11001000 $
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b10100 (
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b1111111100000000 &
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b1111111100000000 '
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1"
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0"
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b11010010 %
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b11011100 %
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b11011100 $
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b10110 (
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1"
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b11100110 #
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b11100110 %
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b11100110 $
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b10111 (
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1"
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0"
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b11110000 #
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b11110000 %
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b11110000 $
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#245
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b11000 (
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1"
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b11111010 #
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b11111010 %
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b11111010 $
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#255
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b0 (
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1"
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b100000100 #
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b100000100 %
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b100000100 $
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#265
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b1 (
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b1111111100000000 )
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1"
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0"
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b100001110 #
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b100001110 %
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b100001110 $
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#275
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b10 (
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b11111111000000000 )
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1"
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0"
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b100011000 #
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b100011000 %
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b100011000 $
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#285
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b11 (
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b111111110000000000 )
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1"
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0"
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b100100010 #
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b100100010 %
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b100100010 $
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b100 (
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b1111111100000000000 )
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1"
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#300
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0"
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b100101100 #
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b100101100 %
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b100101100 $
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#305
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b101 (
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b11111111000000000000 )
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1"
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0"
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b100110110 #
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b100110110 %
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b100110110 $
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#315
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b110 (
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b111111110000000000000 )
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1"
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0"
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b101000000 #
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b101000000 %
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b101000000 $
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b111 (
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b1111111100000000000000 )
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1"
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0"
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b101001010 #
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b101001010 %
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b101001010 $
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b1000 (
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b11111111000000000000000 )
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1"
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b101010100 #
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b101010100 %
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b101010100 $
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b1001 (
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b111111110000000000000000 )
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1"
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0"
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b101011110 #
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b101011110 %
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b101011110 $
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b111111100000000000000000 )
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1!
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1"
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0"
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b101101000 #
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b101101000 %
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b101101000 $
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b1011 (
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b111111000000000000000000 )
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b101110010 %
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b101110010 $
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b1100 (
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b111110000000000000000000 )
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1"
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0"
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b101111100 #
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b101111100 %
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b101111100 $
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b1101 (
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b111100000000000000000000 )
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1"
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#390
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0"
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b110000110 $
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b1110 (
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b111000000000000000000000 )
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1"
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b1111 (
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b110000000000000000000000 )
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b10000 (
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b100000000000000000000000 )
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1"
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0"
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b10001 (
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b0 )
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1"
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0"
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b10010 (
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0!
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1"
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0"
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1"
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1"
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||||
b10101 (
|
||||
1"
|
||||
#470
|
||||
0"
|
||||
#475
|
||||
b10110 (
|
||||
1"
|
||||
#480
|
||||
0"
|
||||
#485
|
||||
b10111 (
|
||||
1"
|
||||
#490
|
||||
@@ -0,0 +1,141 @@
|
||||
#!
|
||||
:ivl_version "13.0 (devel)" "(s20250103-31-g7e238e7ca-dirty)";
|
||||
:ivl_delay_selection "TYPICAL";
|
||||
:vpi_time_precision + 0;
|
||||
:vpi_module "C:\Users\louis\BUT2\Verilog\OSS-CA~1\lib\ivl\system.vpi";
|
||||
:vpi_module "C:\Users\louis\BUT2\Verilog\OSS-CA~1\lib\ivl\vhdl_sys.vpi";
|
||||
:vpi_module "C:\Users\louis\BUT2\Verilog\OSS-CA~1\lib\ivl\vhdl_textio.vpi";
|
||||
:vpi_module "C:\Users\louis\BUT2\Verilog\OSS-CA~1\lib\ivl\v2005_math.vpi";
|
||||
:vpi_module "C:\Users\louis\BUT2\Verilog\OSS-CA~1\lib\ivl\va_math.vpi";
|
||||
S_000002057b2ea610 .scope module, "tb_distance_ws2812_display" "tb_distance_ws2812_display" 2 2;
|
||||
.timescale 0 0;
|
||||
v000002057b2c69d0_0 .var "clk", 0 0;
|
||||
v000002057b1dbfc0_0 .var "distance", 8 0;
|
||||
v000002057b2f7a30_0 .var/i "i", 31 0;
|
||||
v000002057b2f7c10_0 .net "ws2812_dout", 0 0, v000002057b2c66b0_0; 1 drivers
|
||||
S_000002057b1db840 .scope module, "uut" "distance_ws2812_display" 2 9, 3 1 0, S_000002057b2ea610;
|
||||
.timescale 0 0;
|
||||
.port_info 0 /INPUT 1 "clk";
|
||||
.port_info 1 /INPUT 9 "distance";
|
||||
.port_info 2 /OUTPUT 1 "ws2812_dout";
|
||||
v000002057b2c6750_0 .net "clk", 0 0, v000002057b2c69d0_0; 1 drivers
|
||||
v000002057b2c67f0_0 .net "distance", 8 0, v000002057b1dbfc0_0; 1 drivers
|
||||
v000002057b2c6890_0 .var "led_color", 23 0;
|
||||
v000002057b2c6930_0 .net "ws2812_dout", 0 0, v000002057b2c66b0_0; alias, 1 drivers
|
||||
S_000002057b1db9d0 .scope module, "ws2812_inst" "ws2812_driver" 3 21, 4 1 0, S_000002057b1db840;
|
||||
.timescale 0 0;
|
||||
.port_info 0 /INPUT 1 "clk";
|
||||
.port_info 1 /INPUT 24 "color";
|
||||
.port_info 2 /OUTPUT 1 "ws2812_dout";
|
||||
v000002057b1dbb60_0 .var "bit_count", 7 0;
|
||||
v000002057b2fba40_0 .net "clk", 0 0, v000002057b2c69d0_0; alias, 1 drivers
|
||||
v000002057b2ea7a0_0 .net "color", 23 0, v000002057b2c6890_0; 1 drivers
|
||||
v000002057b2c6610_0 .var "shift_reg", 23 0;
|
||||
v000002057b2c66b0_0 .var "ws2812_dout", 0 0;
|
||||
E_000002057b2e9430 .event posedge, v000002057b2fba40_0;
|
||||
.scope S_000002057b1db9d0;
|
||||
T_0 ;
|
||||
%wait E_000002057b2e9430;
|
||||
%load/vec4 v000002057b1dbb60_0;
|
||||
%pad/u 32;
|
||||
%cmpi/e 0, 0, 32;
|
||||
%jmp/0xz T_0.0, 4;
|
||||
%load/vec4 v000002057b2ea7a0_0;
|
||||
%assign/vec4 v000002057b2c6610_0, 0;
|
||||
%pushi/vec4 0, 0, 1;
|
||||
%assign/vec4 v000002057b2c66b0_0, 0;
|
||||
%jmp T_0.1;
|
||||
T_0.0 ;
|
||||
%load/vec4 v000002057b2c6610_0;
|
||||
%parti/s 1, 23, 6;
|
||||
%assign/vec4 v000002057b2c66b0_0, 0;
|
||||
%load/vec4 v000002057b2c6610_0;
|
||||
%ix/load 4, 1, 0;
|
||||
%flag_set/imm 4, 0;
|
||||
%shiftl 4;
|
||||
%assign/vec4 v000002057b2c6610_0, 0;
|
||||
T_0.1 ;
|
||||
%load/vec4 v000002057b1dbb60_0;
|
||||
%pad/u 32;
|
||||
%cmpi/u 24, 0, 32;
|
||||
%jmp/0xz T_0.2, 5;
|
||||
%load/vec4 v000002057b1dbb60_0;
|
||||
%addi 1, 0, 8;
|
||||
%assign/vec4 v000002057b1dbb60_0, 0;
|
||||
%jmp T_0.3;
|
||||
T_0.2 ;
|
||||
%pushi/vec4 0, 0, 8;
|
||||
%assign/vec4 v000002057b1dbb60_0, 0;
|
||||
T_0.3 ;
|
||||
%jmp T_0;
|
||||
.thread T_0;
|
||||
.scope S_000002057b1db840;
|
||||
T_1 ;
|
||||
%wait E_000002057b2e9430;
|
||||
%load/vec4 v000002057b2c67f0_0;
|
||||
%pad/u 32;
|
||||
%cmpi/u 100, 0, 32;
|
||||
%jmp/0xz T_1.0, 5;
|
||||
%pushi/vec4 16711680, 0, 24;
|
||||
%assign/vec4 v000002057b2c6890_0, 0;
|
||||
%jmp T_1.1;
|
||||
T_1.0 ;
|
||||
%load/vec4 v000002057b2c67f0_0;
|
||||
%pad/u 32;
|
||||
%cmpi/u 200, 0, 32;
|
||||
%jmp/0xz T_1.2, 5;
|
||||
%pushi/vec4 16776960, 0, 24;
|
||||
%assign/vec4 v000002057b2c6890_0, 0;
|
||||
%jmp T_1.3;
|
||||
T_1.2 ;
|
||||
%pushi/vec4 65280, 0, 24;
|
||||
%assign/vec4 v000002057b2c6890_0, 0;
|
||||
T_1.3 ;
|
||||
T_1.1 ;
|
||||
%jmp T_1;
|
||||
.thread T_1;
|
||||
.scope S_000002057b2ea610;
|
||||
T_2 ;
|
||||
%delay 5, 0;
|
||||
%load/vec4 v000002057b2c69d0_0;
|
||||
%inv;
|
||||
%store/vec4 v000002057b2c69d0_0, 0, 1;
|
||||
%jmp T_2;
|
||||
.thread T_2;
|
||||
.scope S_000002057b2ea610;
|
||||
T_3 ;
|
||||
%pushi/vec4 0, 0, 1;
|
||||
%store/vec4 v000002057b2c69d0_0, 0, 1;
|
||||
%pushi/vec4 0, 0, 9;
|
||||
%store/vec4 v000002057b1dbfc0_0, 0, 9;
|
||||
%vpi_call 2 22 "$dumpfile", "distance_ws2812_display.vcd" {0 0 0};
|
||||
%vpi_call 2 23 "$dumpvars", 32'sb00000000000000000000000000000000, S_000002057b2ea610 {0 0 0};
|
||||
%pushi/vec4 0, 0, 32;
|
||||
%store/vec4 v000002057b2f7a30_0, 0, 32;
|
||||
T_3.0 ; Top of for-loop
|
||||
%load/vec4 v000002057b2f7a30_0;
|
||||
%cmpi/s 380, 0, 32;
|
||||
%flag_or 5, 4;
|
||||
%jmp/0xz T_3.1, 5;
|
||||
%load/vec4 v000002057b2f7a30_0;
|
||||
%pad/s 9;
|
||||
%store/vec4 v000002057b1dbfc0_0, 0, 9;
|
||||
%delay 10, 0;
|
||||
%vpi_call 2 29 "$display", "Distance: %3d cm => LEDs: %b", v000002057b1dbfc0_0, v000002057b2f7c10_0 {0 0 0};
|
||||
T_3.2 ; for-loop step statement
|
||||
%load/vec4 v000002057b2f7a30_0;
|
||||
%addi 10, 0, 32;
|
||||
%store/vec4 v000002057b2f7a30_0, 0, 32;
|
||||
%jmp T_3.0;
|
||||
T_3.1 ; for-loop exit label
|
||||
%delay 100, 0;
|
||||
%vpi_call 2 32 "$stop" {0 0 0};
|
||||
%end;
|
||||
.thread T_3;
|
||||
# The file index is used to find the file name in the following table.
|
||||
:file_names 5;
|
||||
"N/A";
|
||||
"<interactive>";
|
||||
"tb_distance_ws2812_display.v";
|
||||
"distance_ws2812_display.v";
|
||||
"ws2812_driver.v";
|
||||
@@ -0,0 +1,34 @@
|
||||
// Testbench pour distance_ws2812_display
|
||||
module tb_distance_ws2812_display;
|
||||
|
||||
reg clk;
|
||||
reg [8:0] distance;
|
||||
wire ws2812_dout;
|
||||
|
||||
// Instance du module à tester
|
||||
distance_ws2812_display uut (
|
||||
.clk(clk),
|
||||
.distance(distance),
|
||||
.ws2812_dout(ws2812_dout)
|
||||
);
|
||||
|
||||
always #5 clk = ~clk;
|
||||
integer i;
|
||||
initial begin
|
||||
// Initialiser les signaux
|
||||
clk = 0;
|
||||
distance = 0;
|
||||
|
||||
$dumpfile("distance_ws2812_display.vcd");
|
||||
$dumpvars(0, tb_distance_ws2812_display);
|
||||
|
||||
// Test de la conversion de distance en LED
|
||||
for (i = 0; i <= 380; i = i + 10) begin
|
||||
distance = i;
|
||||
#10;
|
||||
$display("Distance: %3d cm => dout: %b", distance, ws2812_dout);
|
||||
end
|
||||
|
||||
#100 $stop; // Arrêter la simulation après un certain temps
|
||||
end
|
||||
endmodule
|
||||
@@ -0,0 +1,27 @@
|
||||
module ws2812_driver(
|
||||
input wire clk,
|
||||
input wire [23:0] color, // couleur RGB (8 bits par composant)
|
||||
output reg ws2812_dout // broche de données vers la LED
|
||||
);
|
||||
reg [7:0] bit_count; // compteur de bits pour envoyer les données
|
||||
reg [23:0] shift_reg; // registre pour envoyer la couleur
|
||||
|
||||
always @(posedge clk) begin
|
||||
|
||||
if (bit_count == 0) begin
|
||||
shift_reg <= color; // Charger la couleur à transmettre
|
||||
ws2812_dout <= 1'b0; // Commencer par envoyer un "0"
|
||||
end else begin
|
||||
// Envoyer chaque bit un à un en contrôlant la durée de l'impulsion
|
||||
ws2812_dout <= shift_reg[23]; // Le bit le plus significatif
|
||||
shift_reg <= shift_reg << 1; // Décalage des bits
|
||||
end
|
||||
// Incrémentation du compteur de bits
|
||||
if (bit_count < 24)
|
||||
bit_count <= bit_count + 1;
|
||||
else
|
||||
bit_count <= 0; // Réinitialiser pour envoyer la prochaine couleur
|
||||
|
||||
end
|
||||
endmodule
|
||||
|
||||
@@ -1,17 +1,16 @@
|
||||
module top_ultrasonic_led (
|
||||
input wire clk,
|
||||
input wire rst,
|
||||
input wire start, // bouton de déclenchement
|
||||
inout wire sig, // broche unique pour trigger + echo
|
||||
output wire [5:0] leds // LEDs pour affichage distance
|
||||
output wire ws2812_dout // broche de données pour la LED WS2812 (optionnel)
|
||||
);
|
||||
|
||||
wire [8:0] distance;
|
||||
|
||||
// Module de mesure (version bidirectionnelle du capteur)
|
||||
ultrasonic_fpga_onewire ultrasonic_inst (
|
||||
ultrasonic_fpga ultrasonic_inst (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
.start(start),
|
||||
.sig(sig),
|
||||
.distance(distance)
|
||||
@@ -23,4 +22,11 @@ module top_ultrasonic_led (
|
||||
.leds(leds)
|
||||
);
|
||||
|
||||
// Module d'affichage WS2812 (optionnel, si vous souhaitez utiliser une LED RGB)
|
||||
distance_ws2812_display ws2812_display_inst (
|
||||
.clk(clk),
|
||||
.distance(distance),
|
||||
.ws2812_dout(ws2812_dout)
|
||||
);
|
||||
|
||||
endmodule
|
||||
|
||||
Reference in New Issue
Block a user