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pluto_hdl_adi/library/axi_ad9361/axi_ad9361_tx.v

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// ***************************************************************************
// ***************************************************************************
// 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: <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
//
// 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_ad9361_tx #(
// parameters
parameter ID = 0,
parameter MODE_1R1T = 0,
parameter INIT_DELAY = 0,
parameter DDS_DISABLE = 0,
parameter USERPORTS_DISABLE = 0,
parameter DELAYCNTRL_DISABLE = 0,
parameter IQCORRECTION_DISABLE = 0) (
// dac interface
input dac_clk,
output dac_valid,
output [47:0] dac_data,
output dac_clksel,
output dac_r1_mode,
input [47:0] adc_data,
// delay interface
output [15:0] up_dld,
output [79:0] up_dwdata,
input [79:0] up_drdata,
input delay_clk,
output delay_rst,
input delay_locked,
// master/slave
input dac_sync_in,
output dac_sync_out,
// dma interface
output dac_enable_i0,
output dac_valid_i0,
input [15:0] dac_data_i0,
output dac_enable_q0,
output dac_valid_q0,
input [15:0] dac_data_q0,
output dac_enable_i1,
output dac_valid_i1,
input [15:0] dac_data_i1,
output dac_enable_q1,
output dac_valid_q1,
input [15:0] dac_data_q1,
input dac_dovf,
input dac_dunf,
// gpio
input [31:0] up_dac_gpio_in,
output [31:0] up_dac_gpio_out,
// processor 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);
// configuration settings
localparam CONFIG = (DDS_DISABLE * 64) +
(DELAYCNTRL_DISABLE * 32) +
(MODE_1R1T * 16) +
(USERPORTS_DISABLE * 8) +
(IQCORRECTION_DISABLE * 1);
// internal registers
reg dac_data_sync = 'd0;
reg [15:0] dac_rate_cnt = 'd0;
reg dac_valid_int = 'd0;
reg dac_valid_i0_int = 'd0;
reg dac_valid_q0_int = 'd0;
reg dac_valid_i1_int = 'd0;
reg dac_valid_q1_int = 'd0;
reg up_wack_int = 'd0;
reg up_rack_int = 'd0;
reg [31:0] up_rdata_int = 'd0;
// internal clock and resets
wire dac_rst;
// internal signals
wire dac_data_sync_s;
wire dac_dds_format_s;
wire [15:0] dac_datarate_s;
wire [47:0] dac_data_int_s;
wire [ 5:0] up_wack_s;
wire [ 5:0] up_rack_s;
wire [31:0] up_rdata_s[0:5];
// master/slave
assign dac_data_sync_s = (ID == 0) ? dac_sync_out : dac_sync_in;
always @(posedge dac_clk) begin
dac_data_sync <= dac_data_sync_s;
end
// rate counters and data sync signals
always @(posedge dac_clk) begin
if ((dac_data_sync == 1'b1) || (dac_rate_cnt == 16'd0)) begin
dac_rate_cnt <= dac_datarate_s;
end else begin
dac_rate_cnt <= dac_rate_cnt - 1;
end
end
// dma interface
assign dac_valid = dac_valid_int;
assign dac_valid_i0 = dac_valid_i0_int;
assign dac_valid_q0 = dac_valid_q0_int;
assign dac_valid_i1 = dac_valid_i1_int;
assign dac_valid_q1 = dac_valid_q1_int;
always @(posedge dac_clk) begin
dac_valid_int <= (dac_rate_cnt == 16'd0) ? 1'b1 : 1'b0;
dac_valid_i0_int <= dac_valid_int;
dac_valid_q0_int <= dac_valid_int;
dac_valid_i1_int <= dac_valid_int & ~dac_r1_mode;
dac_valid_q1_int <= dac_valid_int & ~dac_r1_mode;
end
// processor read interface
assign up_wack = up_wack_int;
assign up_rack = up_rack_int;
assign up_rdata = up_rdata_int;
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_wack_int <= 'd0;
up_rack_int <= 'd0;
up_rdata_int <= 'd0;
end else begin
up_wack_int <= | up_wack_s;
up_rack_int <= | up_rack_s;
up_rdata_int <= up_rdata_s[0] | up_rdata_s[1] | up_rdata_s[2] |
up_rdata_s[3] | up_rdata_s[4] | up_rdata_s[5];
end
end
// dac channel
axi_ad9361_tx_channel #(
.CHANNEL_ID (0),
.Q_OR_I_N (0),
.DISABLE (0),
.DDS_DISABLE (DDS_DISABLE),
.USERPORTS_DISABLE (USERPORTS_DISABLE),
.IQCORRECTION_DISABLE (IQCORRECTION_DISABLE))
i_tx_channel_0 (
.dac_clk (dac_clk),
.dac_rst (dac_rst),
.dac_valid (dac_valid_int),
.dma_data (dac_data_i0),
.adc_data (adc_data[11:0]),
.dac_data (dac_data[11:0]),
.dac_data_out (dac_data_int_s[11:0]),
.dac_data_in (dac_data_int_s[23:12]),
.dac_enable (dac_enable_i0),
.dac_data_sync (dac_data_sync),
.dac_dds_format (dac_dds_format_s),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq),
.up_waddr (up_waddr),
.up_wdata (up_wdata),
.up_wack (up_wack_s[0]),
.up_rreq (up_rreq),
.up_raddr (up_raddr),
.up_rdata (up_rdata_s[0]),
.up_rack (up_rack_s[0]));
// dac channel
axi_ad9361_tx_channel #(
.CHANNEL_ID (1),
.Q_OR_I_N (1),
.DISABLE (0),
.DDS_DISABLE (DDS_DISABLE),
.USERPORTS_DISABLE (USERPORTS_DISABLE),
.IQCORRECTION_DISABLE (IQCORRECTION_DISABLE))
i_tx_channel_1 (
.dac_clk (dac_clk),
.dac_rst (dac_rst),
.dac_valid (dac_valid_int),
.dma_data (dac_data_q0),
.adc_data (adc_data[23:12]),
.dac_data (dac_data[23:12]),
.dac_data_out (dac_data_int_s[23:12]),
.dac_data_in (dac_data_int_s[11:0]),
.dac_enable (dac_enable_q0),
.dac_data_sync (dac_data_sync),
.dac_dds_format (dac_dds_format_s),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq),
.up_waddr (up_waddr),
.up_wdata (up_wdata),
.up_wack (up_wack_s[1]),
.up_rreq (up_rreq),
.up_raddr (up_raddr),
.up_rdata (up_rdata_s[1]),
.up_rack (up_rack_s[1]));
// dac channel
axi_ad9361_tx_channel #(
.CHANNEL_ID (2),
.Q_OR_I_N (0),
.DISABLE (MODE_1R1T),
.DDS_DISABLE (DDS_DISABLE),
.USERPORTS_DISABLE (USERPORTS_DISABLE),
.IQCORRECTION_DISABLE (IQCORRECTION_DISABLE))
i_tx_channel_2 (
.dac_clk (dac_clk),
.dac_rst (dac_rst),
.dac_valid (dac_valid_int),
.dma_data (dac_data_i1),
.adc_data (adc_data[35:24]),
.dac_data (dac_data[35:24]),
.dac_data_out (dac_data_int_s[35:24]),
.dac_data_in (dac_data_int_s[47:36]),
.dac_enable (dac_enable_i1),
.dac_data_sync (dac_data_sync),
.dac_dds_format (dac_dds_format_s),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq),
.up_waddr (up_waddr),
.up_wdata (up_wdata),
.up_wack (up_wack_s[2]),
.up_rreq (up_rreq),
.up_raddr (up_raddr),
.up_rdata (up_rdata_s[2]),
.up_rack (up_rack_s[2]));
// dac channel
axi_ad9361_tx_channel #(
.CHANNEL_ID (3),
.Q_OR_I_N (1),
.DISABLE (MODE_1R1T),
.DDS_DISABLE (DDS_DISABLE),
.USERPORTS_DISABLE (USERPORTS_DISABLE),
.IQCORRECTION_DISABLE (IQCORRECTION_DISABLE))
i_tx_channel_3 (
.dac_clk (dac_clk),
.dac_rst (dac_rst),
.dac_valid (dac_valid_int),
.dma_data (dac_data_q1),
.adc_data (adc_data[47:36]),
.dac_data (dac_data[47:36]),
.dac_data_out (dac_data_int_s[47:36]),
.dac_data_in (dac_data_int_s[35:24]),
.dac_enable (dac_enable_q1),
.dac_data_sync (dac_data_sync),
.dac_dds_format (dac_dds_format_s),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq),
.up_waddr (up_waddr),
.up_wdata (up_wdata),
.up_wack (up_wack_s[3]),
.up_rreq (up_rreq),
.up_raddr (up_raddr),
.up_rdata (up_rdata_s[3]),
.up_rack (up_rack_s[3]));
// dac common processor interface
up_dac_common #(
.ID (ID),
.CONFIG (CONFIG),
.DRP_DISABLE (1),
.USERPORTS_DISABLE (USERPORTS_DISABLE))
i_up_dac_common (
.mmcm_rst (),
.dac_clk (dac_clk),
.dac_rst (dac_rst),
.dac_sync (dac_sync_out),
.dac_frame (),
.dac_clksel (dac_clksel),
.dac_par_type (),
.dac_par_enb (),
.dac_r1_mode (dac_r1_mode),
.dac_datafmt (dac_dds_format_s),
.dac_datarate (dac_datarate_s),
.dac_status (1'b1),
.dac_status_ovf (dac_dovf),
.dac_status_unf (dac_dunf),
.dac_clk_ratio (32'd1),
.up_drp_sel (),
.up_drp_wr (),
.up_drp_addr (),
.up_drp_wdata (),
.up_drp_rdata (32'd0),
.up_drp_ready (1'd0),
.up_drp_locked (1'd1),
.up_usr_chanmax (),
.dac_usr_chanmax (8'd3),
.up_dac_gpio_in (up_dac_gpio_in),
.up_dac_gpio_out (up_dac_gpio_out),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq),
.up_waddr (up_waddr),
.up_wdata (up_wdata),
.up_wack (up_wack_s[4]),
.up_rreq (up_rreq),
.up_raddr (up_raddr),
.up_rdata (up_rdata_s[4]),
.up_rack (up_rack_s[4]));
// dac delay control
up_delay_cntrl #(
.DISABLE (DELAYCNTRL_DISABLE),
.INIT_DELAY (INIT_DELAY),
.DATA_WIDTH(16),
.BASE_ADDRESS(6'h12))
i_delay_cntrl (
.delay_clk (delay_clk),
.delay_rst (delay_rst),
.delay_locked (delay_locked),
.up_dld (up_dld),
.up_dwdata (up_dwdata),
.up_drdata (up_drdata),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq),
.up_waddr (up_waddr),
.up_wdata (up_wdata),
.up_wack (up_wack_s[5]),
.up_rreq (up_rreq),
.up_raddr (up_raddr),
.up_rdata (up_rdata_s[5]),
.up_rack (up_rack_s[5]));
endmodule
// ***************************************************************************
// ***************************************************************************
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