Hollow Point

module Hollow_point(input wire clk,               // Clock signal

input wire trigger,           // Input trigger

output reg [7:0] back_track // Backtracks

output reg [31:0] time_period // time period

);

// Internal counter to track the number of backtracks

reg [7:0] back_track;

// Internal counter to track the time frame of reference

reg [63:0] time_period;

// define behavior

always @(posedge clk) begin : process_block

if (trigger) begin

// Increment the backtracks if trigger is evoked

backtracks <= backtracks + 1;

//reset time period

time_period <= 0;

end

else begin

// Increment the time period

time_period <= time_period + 1;

//time period reaches certian threshhold

if (time_period <= 16'b01001000011001010110110001110000)

disable process_block;

// Once the counter reaches a threshold

if (back_track <= 8'd225) begin

$display("Hollow point");

end

end

endmodule