Subversion Repositories cordic_atan_iq

`ifndef _cordic_atan_abs_

`define _cordic_atan_abs_

`include "cordic_atan_iq.sv"

module cordic_atan_abs(clk, IS, QS, angle, abs);

        import ConstPkg::K_u32;

        input wire clk;

        input wire signed [29:0] IS, QS;

        output reg signed [31:0] angle;

        output reg [30:0] abs; // sqrt(I^2 + Q^2)

        wire signed [31:0] angle_res;

        wire [31:0] coe_radius;

        cordic_atan_iq cordic_inst(.clk, .IS, .QS, .angle(angle_res), .coe_radius);

        reg [($bits(coe_radius) + $bits(K_u32) - 1):0] abs_reg;

        always_ff @(posedge clk)

                abs_reg <= coe_radius * K_u32;

        assign abs = abs_reg[$bits(K_u32)+:31];

        always_ff @(posedge clk)

                angle <= angle_res;

endmodule :cordic_atan_abs

`endif