// *************************************************************************** // *************************************************************************** // Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved. // // This core is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR // A PARTICULAR PURPOSE. // // Redistribution and use of source or resulting binaries, with or without modification // of this file, are permitted under one of the following two license terms: // // 1. The GNU General Public License version 2 as published by the // Free Software Foundation, which can be found in the top level directory of // the repository (LICENSE_GPL2), and at: // // OR // // 2. An ADI specific BSD license as noted in the top level directory, or on-line at: // https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD // This will allow to generate bit files and not release the source code, // as long as it attaches to an ADI device. // // *************************************************************************** // *************************************************************************** `timescale 1ns/100ps module axi_ad9122_channel #( parameter CHANNEL_ID = 32'h0, parameter DATAPATH_DISABLE = 0) ( // dac interface input dac_div_clk, input dac_rst, output reg dac_enable, output reg [63:0] dac_data, output reg [ 3:0] dac_frame, input [63:0] dma_data, // processor interface input dac_data_frame, input dac_data_sync, input dac_dds_format, // bus interface input up_rstn, input up_clk, input up_wreq, input [13:0] up_waddr, input [31:0] up_wdata, output up_wack, input up_rreq, input [13:0] up_raddr, output [31:0] up_rdata, output up_rack); // internal registers reg [15:0] dac_dds_phase_0_0 = 'd0; reg [15:0] dac_dds_phase_0_1 = 'd0; reg [15:0] dac_dds_phase_1_0 = 'd0; reg [15:0] dac_dds_phase_1_1 = 'd0; reg [15:0] dac_dds_phase_2_0 = 'd0; reg [15:0] dac_dds_phase_2_1 = 'd0; reg [15:0] dac_dds_phase_3_0 = 'd0; reg [15:0] dac_dds_phase_3_1 = 'd0; reg [15:0] dac_dds_incr_0 = 'd0; reg [15:0] dac_dds_incr_1 = 'd0; reg [63:0] dac_dds_data = 'd0; // internal signals wire [15:0] dac_dds_data_0_s; wire [15:0] dac_dds_data_1_s; wire [15:0] dac_dds_data_2_s; wire [15:0] dac_dds_data_3_s; wire [15:0] dac_dds_scale_1_s; wire [15:0] dac_dds_init_1_s; wire [15:0] dac_dds_incr_1_s; wire [15:0] dac_dds_scale_2_s; wire [15:0] dac_dds_init_2_s; wire [15:0] dac_dds_incr_2_s; wire [15:0] dac_pat_data_1_s; wire [15:0] dac_pat_data_2_s; wire [ 3:0] dac_data_sel_s; // dac data select always @(posedge dac_div_clk) begin dac_enable <= (dac_data_sel_s == 4'h2) ? 1'b1 : 1'b0; case (dac_data_sel_s) 4'h2: dac_data <= dma_data; 4'ha, 4'h1: dac_data <= {dac_pat_data_2_s, dac_pat_data_1_s, dac_pat_data_2_s, dac_pat_data_1_s}; default: dac_data <= dac_dds_data; endcase if (dac_data_sel_s == 4'h1) begin dac_frame <= 4'b0101; end else begin dac_frame <= {3'd0, dac_data_frame}; end end // single channel dds always @(posedge dac_div_clk) begin if (dac_data_sync == 1'b1) begin dac_dds_phase_0_0 <= dac_dds_init_1_s; dac_dds_phase_0_1 <= dac_dds_init_2_s; dac_dds_phase_1_0 <= dac_dds_phase_0_0 + dac_dds_incr_1_s; dac_dds_phase_1_1 <= dac_dds_phase_0_1 + dac_dds_incr_2_s; dac_dds_phase_2_0 <= dac_dds_phase_1_0 + dac_dds_incr_1_s; dac_dds_phase_2_1 <= dac_dds_phase_1_1 + dac_dds_incr_2_s; dac_dds_phase_3_0 <= dac_dds_phase_2_0 + dac_dds_incr_1_s; dac_dds_phase_3_1 <= dac_dds_phase_2_1 + dac_dds_incr_2_s; dac_dds_incr_0 <= {dac_dds_incr_1_s[13:0], 2'd0}; dac_dds_incr_1 <= {dac_dds_incr_2_s[13:0], 2'd0}; dac_dds_data <= 64'd0; end else begin dac_dds_phase_0_0 <= dac_dds_phase_0_0 + dac_dds_incr_0; dac_dds_phase_0_1 <= dac_dds_phase_0_1 + dac_dds_incr_1; dac_dds_phase_1_0 <= dac_dds_phase_1_0 + dac_dds_incr_0; dac_dds_phase_1_1 <= dac_dds_phase_1_1 + dac_dds_incr_1; dac_dds_phase_2_0 <= dac_dds_phase_2_0 + dac_dds_incr_0; dac_dds_phase_2_1 <= dac_dds_phase_2_1 + dac_dds_incr_1; dac_dds_phase_3_0 <= dac_dds_phase_3_0 + dac_dds_incr_0; dac_dds_phase_3_1 <= dac_dds_phase_3_1 + dac_dds_incr_1; dac_dds_incr_0 <= dac_dds_incr_0; dac_dds_incr_1 <= dac_dds_incr_1; dac_dds_data <= { dac_dds_data_3_s, dac_dds_data_2_s, dac_dds_data_1_s, dac_dds_data_0_s}; end end generate if (DATAPATH_DISABLE == 1) begin assign dac_dds_data_0_s = 16'd0; end else begin ad_dds i_dds_0 ( .clk (dac_div_clk), .dds_format (dac_dds_format), .dds_phase_0 (dac_dds_phase_0_0), .dds_scale_0 (dac_dds_scale_1_s), .dds_phase_1 (dac_dds_phase_0_1), .dds_scale_1 (dac_dds_scale_2_s), .dds_data (dac_dds_data_0_s)); end endgenerate generate if (DATAPATH_DISABLE == 1) begin assign dac_dds_data_1_s = 16'd0; end else begin ad_dds i_dds_1 ( .clk (dac_div_clk), .dds_format (dac_dds_format), .dds_phase_0 (dac_dds_phase_1_0), .dds_scale_0 (dac_dds_scale_1_s), .dds_phase_1 (dac_dds_phase_1_1), .dds_scale_1 (dac_dds_scale_2_s), .dds_data (dac_dds_data_1_s)); end endgenerate generate if (DATAPATH_DISABLE == 1) begin assign dac_dds_data_2_s = 16'd0; end else begin ad_dds i_dds_2 ( .clk (dac_div_clk), .dds_format (dac_dds_format), .dds_phase_0 (dac_dds_phase_2_0), .dds_scale_0 (dac_dds_scale_1_s), .dds_phase_1 (dac_dds_phase_2_1), .dds_scale_1 (dac_dds_scale_2_s), .dds_data (dac_dds_data_2_s)); end endgenerate generate if (DATAPATH_DISABLE == 1) begin assign dac_dds_data_3_s = 16'd0; end else begin ad_dds i_dds_3 ( .clk (dac_div_clk), .dds_format (dac_dds_format), .dds_phase_0 (dac_dds_phase_3_0), .dds_scale_0 (dac_dds_scale_1_s), .dds_phase_1 (dac_dds_phase_3_1), .dds_scale_1 (dac_dds_scale_2_s), .dds_data (dac_dds_data_3_s)); end endgenerate // single channel processor up_dac_channel #(.CHANNEL_ID(CHANNEL_ID)) i_up_dac_channel ( .dac_clk (dac_div_clk), .dac_rst (dac_rst), .dac_dds_scale_1 (dac_dds_scale_1_s), .dac_dds_init_1 (dac_dds_init_1_s), .dac_dds_incr_1 (dac_dds_incr_1_s), .dac_dds_scale_2 (dac_dds_scale_2_s), .dac_dds_init_2 (dac_dds_init_2_s), .dac_dds_incr_2 (dac_dds_incr_2_s), .dac_pat_data_1 (dac_pat_data_1_s), .dac_pat_data_2 (dac_pat_data_2_s), .dac_data_sel (dac_data_sel_s), .dac_iq_mode (), .dac_iqcor_enb (), .dac_iqcor_coeff_1 (), .dac_iqcor_coeff_2 (), .up_usr_datatype_be (), .up_usr_datatype_signed (), .up_usr_datatype_shift (), .up_usr_datatype_total_bits (), .up_usr_datatype_bits (), .up_usr_interpolation_m (), .up_usr_interpolation_n (), .dac_usr_datatype_be (1'b0), .dac_usr_datatype_signed (1'b1), .dac_usr_datatype_shift (8'd0), .dac_usr_datatype_total_bits (8'd16), .dac_usr_datatype_bits (8'd16), .dac_usr_interpolation_m (16'd1), .dac_usr_interpolation_n (16'd1), .up_rstn (up_rstn), .up_clk (up_clk), .up_wreq (up_wreq), .up_waddr (up_waddr), .up_wdata (up_wdata), .up_wack (up_wack), .up_rreq (up_rreq), .up_raddr (up_raddr), .up_rdata (up_rdata), .up_rack (up_rack)); endmodule // *************************************************************************** // ***************************************************************************