pluto_hdl_adi/library/common/up_dac_channel.v

502 lines
17 KiB
Verilog

// ***************************************************************************
// ***************************************************************************
// Copyright (C) 2014-2023 Analog Devices, Inc. All rights reserved.
//
// In this HDL repository, there are many different and unique modules, consisting
// of various HDL (Verilog or VHDL) components. The individual modules are
// developed independently, and may be accompanied by separate and unique license
// terms.
//
// The user should read each of these license terms, and understand the
// freedoms and responsibilities that he or she has by using this source/core.
//
// 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 this repository (LICENSE_GPL2), and also online at:
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
//
// OR
//
// 2. An ADI specific BSD license, which can be found in the top level directory
// of this repository (LICENSE_ADIBSD), and also 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 up_dac_channel #(
// parameters
parameter COMMON_ID = 6'h11,
parameter CHANNEL_ID = 4'h0,
parameter CHANNEL_NUMBER = 8'b0,
parameter DDS_DISABLE = 0,
parameter DDS_PHASE_DW = 16,
parameter USERPORTS_DISABLE = 0,
parameter IQCORRECTION_DISABLE = 0,
parameter XBAR_ENABLE = 0
) (
// dac interface
input dac_clk,
input dac_rst,
output [15:0] dac_dds_scale_1,
output [15:0] dac_dds_scale_2,
output [DDS_PHASE_DW-1:0] dac_dds_init_1,
output [DDS_PHASE_DW-1:0] dac_dds_incr_1,
output [DDS_PHASE_DW-1:0] dac_dds_init_2,
output [DDS_PHASE_DW-1:0] dac_dds_incr_2,
output [15:0] dac_pat_data_1,
output [15:0] dac_pat_data_2,
output [ 3:0] dac_data_sel,
output dac_mask_enable,
output [ 1:0] dac_iq_mode,
output dac_iqcor_enb,
output [15:0] dac_iqcor_coeff_1,
output [15:0] dac_iqcor_coeff_2,
output [7:0] dac_src_chan_sel,
// user controls
output up_usr_datatype_be,
output up_usr_datatype_signed,
output [ 7:0] up_usr_datatype_shift,
output [ 7:0] up_usr_datatype_total_bits,
output [ 7:0] up_usr_datatype_bits,
output [15:0] up_usr_interpolation_m,
output [15:0] up_usr_interpolation_n,
input dac_usr_datatype_be,
input dac_usr_datatype_signed,
input [ 7:0] dac_usr_datatype_shift,
input [ 7:0] dac_usr_datatype_total_bits,
input [ 7:0] dac_usr_datatype_bits,
input [15:0] dac_usr_interpolation_m,
input [15:0] dac_usr_interpolation_n,
// 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 up_wack_int = 'd0;
reg [15:0] up_dac_dds_scale_1 = 'd0;
reg [15:0] up_dac_dds_init_1 = 'd0;
reg [15:0] up_dac_dds_incr_1 = 'd0;
reg [15:0] up_dac_dds_scale_2 = 'd0;
reg [15:0] up_dac_dds_init_2 = 'd0;
reg [15:0] up_dac_dds_incr_2 = 'd0;
reg [15:0] up_dac_dds_init_1_extend = 'd0;
reg [15:0] up_dac_dds_incr_1_extend = 'd0;
reg [15:0] up_dac_dds_init_2_extend = 'd0;
reg [15:0] up_dac_dds_incr_2_extend = 'd0;
reg [15:0] up_dac_pat_data_2 = 'd0;
reg [15:0] up_dac_pat_data_1 = 'd0;
reg up_dac_iqcor_enb = 'd0;
reg up_dac_lb_enb = 'd0;
reg up_dac_pn_enb = 'd0;
reg [ 3:0] up_dac_data_sel = 'd0;
reg [15:0] up_dac_iqcor_coeff_1 = 'd0;
reg [15:0] up_dac_iqcor_coeff_2 = 'd0;
reg up_usr_datatype_be_int = 'd0;
reg up_usr_datatype_signed_int = 'd0;
reg [ 7:0] up_usr_datatype_shift_int = 'd0;
reg [ 7:0] up_usr_datatype_total_bits_int = 'd0;
reg [ 7:0] up_usr_datatype_bits_int = 'd0;
reg [15:0] up_usr_interpolation_m_int = 'd0;
reg [15:0] up_usr_interpolation_n_int = 'd0;
reg [ 1:0] up_dac_iq_mode = 'd0;
reg up_rack_int = 'd0;
reg [31:0] up_rdata_int = 'd0;
reg [15:0] up_dac_dds_scale_tc_1 = 'd0;
reg [15:0] up_dac_dds_scale_tc_2 = 'd0;
reg [15:0] up_dac_iqcor_coeff_tc_1 = 'd0;
reg [15:0] up_dac_iqcor_coeff_tc_2 = 'd0;
reg [ 3:0] up_dac_data_sel_m = 'd0;
reg [ 7:0] up_dac_src_chan_sel = XBAR_ENABLE ? CHANNEL_NUMBER[7:0] : 8'h0;
reg up_dac_mask_enable = 1'b0;
// internal signals
wire up_wreq_s;
wire up_rreq_s;
wire [ 5:0] dds_phase_w = DDS_PHASE_DW[5:0];
wire [15:0] dac_dds_init_1_s;
wire [15:0] dac_dds_incr_1_s;
wire [15:0] dac_dds_init_2_s;
wire [15:0] dac_dds_incr_2_s;
wire [15:0] dac_dds_init_1_extend;
wire [15:0] dac_dds_incr_1_extend;
wire [15:0] dac_dds_init_2_extend;
wire [15:0] dac_dds_incr_2_extend;
// 2's complement function
function [15:0] sm2tc;
input [15:0] din;
reg [15:0] dp;
reg [15:0] dn;
reg [15:0] dout;
begin
dp = {1'b0, din[14:0]};
dn = ~dp + 1'b1;
dout = (din[15] == 1'b1) ? dn : dp;
sm2tc = dout;
end
endfunction
// decode block select
assign up_wreq_s = ((up_waddr[13:8] == COMMON_ID) && (up_waddr[7:4] == CHANNEL_ID)) ? up_wreq : 1'b0;
assign up_rreq_s = ((up_raddr[13:8] == COMMON_ID) && (up_raddr[7:4] == CHANNEL_ID)) ? up_rreq : 1'b0;
// processor write interface
assign up_wack = up_wack_int;
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_wack_int <= 'd0;
end else begin
up_wack_int <= up_wreq_s;
end
end
generate
if (DDS_DISABLE == 1) begin
always @(posedge up_clk) begin
up_dac_dds_scale_1 <= 'd0;
up_dac_dds_init_1 <= 'd0;
up_dac_dds_incr_1 <= 'd0;
up_dac_dds_scale_2 <= 'd0;
up_dac_dds_init_2 <= 'd0;
up_dac_dds_incr_2 <= 'd0;
up_dac_dds_init_1_extend <= 'd0;
up_dac_dds_incr_1_extend <= 'd0;
up_dac_dds_init_2_extend <= 'd0;
up_dac_dds_incr_2_extend <= 'd0;
end
end else begin
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_dds_scale_1 <= 'd0;
up_dac_dds_init_1 <= 'd0;
up_dac_dds_incr_1 <= 'd0;
up_dac_dds_scale_2 <= 'd0;
up_dac_dds_init_2 <= 'd0;
up_dac_dds_incr_2 <= 'd0;
up_dac_dds_init_1_extend <= 'd0;
up_dac_dds_incr_1_extend <= 'd0;
up_dac_dds_init_2_extend <= 'd0;
up_dac_dds_incr_2_extend <= 'd0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h0)) begin
up_dac_dds_scale_1 <= up_wdata[15:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h1)) begin
up_dac_dds_init_1 <= up_wdata[31:16];
up_dac_dds_incr_1 <= up_wdata[15:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h2)) begin
up_dac_dds_scale_2 <= up_wdata[15:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h3)) begin
up_dac_dds_init_2 <= up_wdata[31:16];
up_dac_dds_incr_2 <= up_wdata[15:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'hb)) begin
up_dac_dds_init_1_extend <= up_wdata[31:16];
up_dac_dds_incr_1_extend <= up_wdata[15:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'hc)) begin
up_dac_dds_init_2_extend <= up_wdata[31:16];
up_dac_dds_incr_2_extend <= up_wdata[15:0];
end
end
end
end
endgenerate
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_pat_data_2 <= 'd0;
up_dac_pat_data_1 <= 'd0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h4)) begin
up_dac_pat_data_2 <= up_wdata[31:16];
up_dac_pat_data_1 <= up_wdata[15:0];
end
end
end
generate
if (IQCORRECTION_DISABLE == 1) begin
always @(posedge up_clk) begin
up_dac_iqcor_enb <= 'd0;
end
end else begin
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_iqcor_enb <= 'd0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h5)) begin
up_dac_iqcor_enb <= up_wdata[2];
end
end
end
end
endgenerate
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_lb_enb <= 'd0;
up_dac_pn_enb <= 'd0;
up_dac_data_sel <= 'd0;
up_dac_src_chan_sel <= XBAR_ENABLE ? CHANNEL_NUMBER[7:0] : 8'h0;
up_dac_mask_enable <= 1'b0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h5)) begin
up_dac_lb_enb <= up_wdata[1];
up_dac_pn_enb <= up_wdata[0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h6)) begin
up_dac_data_sel <= up_wdata[3:0];
up_dac_mask_enable <= XBAR_ENABLE ? up_wdata[16] : 1'b0;
up_dac_src_chan_sel <= XBAR_ENABLE ? up_wdata[15:8] : 8'h0;
end
end
end
generate
if (IQCORRECTION_DISABLE == 1) begin
always @(posedge up_clk) begin
up_dac_iqcor_coeff_1 <= 'd0;
up_dac_iqcor_coeff_2 <= 'd0;
end
end else begin
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_iqcor_coeff_1 <= 'd0;
up_dac_iqcor_coeff_2 <= 'd0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h7)) begin
up_dac_iqcor_coeff_1 <= up_wdata[31:16];
up_dac_iqcor_coeff_2 <= up_wdata[15:0];
end
end
end
end
endgenerate
assign up_usr_datatype_be = up_usr_datatype_be_int;
assign up_usr_datatype_signed = up_usr_datatype_signed_int;
assign up_usr_datatype_shift = up_usr_datatype_shift_int;
assign up_usr_datatype_total_bits = up_usr_datatype_total_bits_int;
assign up_usr_datatype_bits = up_usr_datatype_bits_int;
assign up_usr_interpolation_m = up_usr_interpolation_m_int;
assign up_usr_interpolation_n = up_usr_interpolation_n_int;
generate
if (USERPORTS_DISABLE == 1) begin
always @(posedge up_clk) begin
up_usr_datatype_be_int <= 'd0;
up_usr_datatype_signed_int <= 'd0;
up_usr_datatype_shift_int <= 'd0;
up_usr_datatype_total_bits_int <= 'd0;
up_usr_datatype_bits_int <= 'd0;
up_usr_interpolation_m_int <= 'd0;
up_usr_interpolation_n_int <= 'd0;
end
end else begin
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_usr_datatype_be_int <= 'd0;
up_usr_datatype_signed_int <= 'd0;
up_usr_datatype_shift_int <= 'd0;
up_usr_datatype_total_bits_int <= 'd0;
up_usr_datatype_bits_int <= 'd0;
up_usr_interpolation_m_int <= 'd0;
up_usr_interpolation_n_int <= 'd0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h8)) begin
up_usr_datatype_be_int <= up_wdata[25];
up_usr_datatype_signed_int <= up_wdata[24];
up_usr_datatype_shift_int <= up_wdata[23:16];
up_usr_datatype_total_bits_int <= up_wdata[15:8];
up_usr_datatype_bits_int <= up_wdata[7:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'h9)) begin
up_usr_interpolation_m_int <= up_wdata[31:16];
up_usr_interpolation_n_int <= up_wdata[15:0];
end
end
end
end
endgenerate
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_iq_mode <= 'd0;
end else begin
if ((up_wreq_s == 1'b1) && (up_waddr[3:0] == 4'ha)) begin
up_dac_iq_mode <= up_wdata[1:0];
end
end
end
// processor read interface
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_rack_int <= 'd0;
up_rdata_int <= 'd0;
end else begin
up_rack_int <= up_rreq_s;
if (up_rreq_s == 1'b1) begin
case (up_raddr[3:0])
4'h0: up_rdata_int <= { 10'd0, dds_phase_w, up_dac_dds_scale_1};
4'h1: up_rdata_int <= { up_dac_dds_init_1, up_dac_dds_incr_1};
4'h2: up_rdata_int <= { 16'd0, up_dac_dds_scale_2};
4'h3: up_rdata_int <= { up_dac_dds_init_2, up_dac_dds_incr_2};
4'h4: up_rdata_int <= { up_dac_pat_data_2, up_dac_pat_data_1};
4'h5: up_rdata_int <= { 29'd0, up_dac_iqcor_enb, up_dac_lb_enb, up_dac_pn_enb};
4'h6: up_rdata_int <= { 15'b0, up_dac_mask_enable, up_dac_src_chan_sel, 4'b0, up_dac_data_sel_m};
4'h7: up_rdata_int <= { up_dac_iqcor_coeff_1, up_dac_iqcor_coeff_2};
4'h8: up_rdata_int <= { 6'd0, dac_usr_datatype_be, dac_usr_datatype_signed,
dac_usr_datatype_shift, dac_usr_datatype_total_bits,
dac_usr_datatype_bits};
4'h9: up_rdata_int <= { dac_usr_interpolation_m, dac_usr_interpolation_n};
4'ha: up_rdata_int <= { 30'd0, up_dac_iq_mode};
4'hb: up_rdata_int <= { up_dac_dds_init_1_extend, up_dac_dds_incr_1_extend};
4'hc: up_rdata_int <= { up_dac_dds_init_2_extend, up_dac_dds_incr_2_extend};
default: up_rdata_int <= 0;
endcase
end else begin
up_rdata_int <= 32'd0;
end
end
end
// change coefficients to 2's complements
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_dds_scale_tc_1 <= 16'd0;
up_dac_dds_scale_tc_2 <= 16'd0;
up_dac_iqcor_coeff_tc_1 <= 16'd0;
up_dac_iqcor_coeff_tc_2 <= 16'd0;
end else begin
up_dac_dds_scale_tc_1 <= sm2tc(up_dac_dds_scale_1);
up_dac_dds_scale_tc_2 <= sm2tc(up_dac_dds_scale_2);
up_dac_iqcor_coeff_tc_1 <= sm2tc(up_dac_iqcor_coeff_1);
up_dac_iqcor_coeff_tc_2 <= sm2tc(up_dac_iqcor_coeff_2);
end
end
// backward compatibility
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_dac_data_sel_m <= 4'd0;
end else begin
case ({up_dac_lb_enb, up_dac_pn_enb})
2'b10: up_dac_data_sel_m <= 4'h8;
2'b01: up_dac_data_sel_m <= 4'h9;
default: up_dac_data_sel_m <= up_dac_data_sel;
endcase
end
end
// dac control & status
up_xfer_cntrl #(
.DATA_WIDTH(240)
) i_xfer_cntrl (
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_data_cntrl ({ up_dac_iq_mode,
up_dac_iqcor_enb,
up_dac_iqcor_coeff_tc_1,
up_dac_iqcor_coeff_tc_2,
up_dac_dds_scale_tc_1,
up_dac_dds_init_1,
up_dac_dds_incr_1,
up_dac_dds_scale_tc_2,
up_dac_dds_init_2,
up_dac_dds_incr_2,
up_dac_dds_init_1_extend,
up_dac_dds_incr_1_extend,
up_dac_dds_init_2_extend,
up_dac_dds_incr_2_extend,
up_dac_pat_data_1,
up_dac_pat_data_2,
up_dac_data_sel_m,
up_dac_mask_enable,
up_dac_src_chan_sel}),
.up_xfer_done (),
.d_rst (dac_rst),
.d_clk (dac_clk),
.d_data_cntrl ({ dac_iq_mode,
dac_iqcor_enb,
dac_iqcor_coeff_1,
dac_iqcor_coeff_2,
dac_dds_scale_1,
dac_dds_init_1_s,
dac_dds_incr_1_s,
dac_dds_scale_2,
dac_dds_init_2_s,
dac_dds_incr_2_s,
dac_dds_init_1_extend,
dac_dds_incr_1_extend,
dac_dds_init_2_extend,
dac_dds_incr_2_extend,
dac_pat_data_1,
dac_pat_data_2,
dac_data_sel,
dac_mask_enable,
dac_src_chan_sel}));
generate
if (DDS_PHASE_DW > 16) begin
localparam DDS_EXT_DW = DDS_PHASE_DW - 16 - 1;
assign dac_dds_init_1 = {dac_dds_init_1_extend[DDS_EXT_DW:0], dac_dds_init_1_s};
assign dac_dds_incr_1 = {dac_dds_incr_1_extend[DDS_EXT_DW:0], dac_dds_incr_1_s};
assign dac_dds_init_2 = {dac_dds_init_2_extend[DDS_EXT_DW:0], dac_dds_init_2_s};
assign dac_dds_incr_2 = {dac_dds_incr_2_extend[DDS_EXT_DW:0], dac_dds_incr_2_s};
end else begin
assign dac_dds_init_1 = dac_dds_init_1_s[DDS_PHASE_DW-1:0];
assign dac_dds_incr_1 = dac_dds_incr_1_s[DDS_PHASE_DW-1:0];
assign dac_dds_init_2 = dac_dds_init_2_s[DDS_PHASE_DW-1:0];
assign dac_dds_incr_2 = dac_dds_incr_2_s[DDS_PHASE_DW-1:0];
end
endgenerate
endmodule