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pluto_hdl_adi/library/common/up_adc_common.v

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// ***************************************************************************
// ***************************************************************************
// Copyright 2011(c) Analog Devices, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
// - Neither the name of Analog Devices, Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
// - The use of this software may or may not infringe the patent rights
// of one or more patent holders. This license does not release you
// from the requirement that you obtain separate licenses from these
// patent holders to use this software.
// - Use of the software either in source or binary form, must be run
// on or directly connected to an Analog Devices Inc. component.
//
// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.
//
// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module up_adc_common (
// clock reset
mmcm_rst,
// adc interface
adc_clk,
adc_rst,
adc_r1_mode,
adc_ddr_edgesel,
adc_pin_mode,
adc_status,
adc_sync_status,
adc_status_ovf,
adc_status_unf,
adc_clk_ratio,
adc_start_code,
adc_sync,
// channel interface
up_status_pn_err,
up_status_pn_oos,
up_status_or,
// drp interface
up_drp_sel,
up_drp_wr,
up_drp_addr,
up_drp_wdata,
up_drp_rdata,
up_drp_ready,
up_drp_locked,
// user channel control
up_usr_chanmax,
adc_usr_chanmax,
up_adc_gpio_in,
up_adc_gpio_out,
// bus interface
up_rstn,
up_clk,
up_wreq,
up_waddr,
up_wdata,
up_wack,
up_rreq,
up_raddr,
up_rdata,
up_rack);
// parameters
localparam PCORE_VERSION = 32'h00090062;
parameter ID = 0;
parameter ADC_COMMON_ID = 6'h00;
// clock reset
output mmcm_rst;
// adc interface
input adc_clk;
output adc_rst;
output adc_r1_mode;
output adc_ddr_edgesel;
output adc_pin_mode;
input adc_status;
input adc_sync_status;
input adc_status_ovf;
input adc_status_unf;
input [31:0] adc_clk_ratio;
output [31:0] adc_start_code;
output adc_sync;
// channel interface
input up_status_pn_err;
input up_status_pn_oos;
input up_status_or;
// drp interface
output up_drp_sel;
output up_drp_wr;
output [11:0] up_drp_addr;
output [15:0] up_drp_wdata;
input [15:0] up_drp_rdata;
input up_drp_ready;
input up_drp_locked;
// user channel control
output [ 7:0] up_usr_chanmax;
input [ 7:0] adc_usr_chanmax;
input [31:0] up_adc_gpio_in;
output [31:0] up_adc_gpio_out;
// 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_core_preset = 'd0;
reg up_mmcm_preset = 'd0;
reg up_wack = 'd0;
reg [31:0] up_scratch = 'd0;
reg up_mmcm_resetn = 'd0;
reg up_resetn = 'd0;
reg up_adc_r1_mode = 'd0;
reg up_adc_ddr_edgesel = 'd0;
reg up_adc_pin_mode = 'd0;
reg up_drp_sel = 'd0;
reg up_drp_wr = 'd0;
reg up_drp_status = 'd0;
reg up_drp_rwn = 'd0;
reg [11:0] up_drp_addr = 'd0;
reg [15:0] up_drp_wdata = 'd0;
reg [15:0] up_drp_rdata_hold = 'd0;
reg up_status_ovf = 'd0;
reg up_status_unf = 'd0;
reg [ 7:0] up_usr_chanmax = 'd0;
reg [31:0] up_adc_gpio_out = 'd0;
reg [31:0] up_adc_start_code = 'd0;
reg up_adc_sync = 'd0;
reg up_rack = 'd0;
reg [31:0] up_rdata = 'd0;
// internal signals
wire up_wreq_s;
wire up_rreq_s;
wire up_status_s;
wire up_sync_status_s;
wire up_status_ovf_s;
wire up_status_unf_s;
wire up_cntrl_xfer_done;
wire [31:0] up_adc_clk_count_s;
// decode block select
assign up_wreq_s = (up_waddr[13:8] == ADC_COMMON_ID) ? up_wreq : 1'b0;
assign up_rreq_s = (up_raddr[13:8] == ADC_COMMON_ID) ? up_rreq : 1'b0;
// processor write interface
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_core_preset <= 1'd1;
up_mmcm_preset <= 1'd1;
up_wack <= 'd0;
up_scratch <= 'd0;
up_mmcm_resetn <= 'd0;
up_resetn <= 'd0;
up_adc_r1_mode <= 'd0;
up_adc_ddr_edgesel <= 'd0;
up_adc_pin_mode <= 'd0;
up_drp_sel <= 'd0;
up_drp_wr <= 'd0;
up_drp_status <= 'd0;
up_drp_rwn <= 'd0;
up_drp_addr <= 'd0;
up_drp_wdata <= 'd0;
up_drp_rdata_hold <= 'd0;
up_status_ovf <= 'd0;
up_status_unf <= 'd0;
up_usr_chanmax <= 'd0;
up_adc_gpio_out <= 'd0;
up_adc_start_code <= 'd0;
end else begin
up_core_preset <= ~up_resetn;
up_mmcm_preset <= ~up_mmcm_resetn;
up_wack <= up_wreq_s;
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h02)) begin
up_scratch <= up_wdata;
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h10)) begin
up_mmcm_resetn <= up_wdata[1];
up_resetn <= up_wdata[0];
end
if (up_adc_sync == 1'b1) begin
if (up_cntrl_xfer_done == 1'b1) begin
up_adc_sync <= 1'b0;
end
end else if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h11)) begin
up_adc_sync <= up_wdata[3];
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h11)) begin
up_adc_r1_mode <= up_wdata[2];
up_adc_ddr_edgesel <= up_wdata[1];
up_adc_pin_mode <= up_wdata[0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h1c)) begin
up_drp_sel <= 1'b1;
up_drp_wr <= ~up_wdata[28];
end else begin
up_drp_sel <= 1'b0;
up_drp_wr <= 1'b0;
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h1c)) begin
up_drp_status <= 1'b1;
end else if (up_drp_ready == 1'b1) begin
up_drp_status <= 1'b0;
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h1c)) begin
up_drp_rwn <= up_wdata[28];
up_drp_addr <= up_wdata[27:16];
up_drp_wdata <= up_wdata[15:0];
end
if (up_drp_ready == 1'b1) begin
up_drp_rdata_hold <= up_drp_rdata;
end
if (up_status_ovf_s == 1'b1) begin
up_status_ovf <= 1'b1;
end else if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h22)) begin
up_status_ovf <= up_status_ovf & ~up_wdata[2];
end
if (up_status_unf_s == 1'b1) begin
up_status_unf <= 1'b1;
end else if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h22)) begin
up_status_unf <= up_status_unf & ~up_wdata[1];
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h28)) begin
up_usr_chanmax <= up_wdata[7:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h29)) begin
up_adc_start_code <= up_wdata[31:0];
end
if ((up_wreq_s == 1'b1) && (up_waddr[7:0] == 8'h2f)) begin
up_adc_gpio_out <= up_wdata;
end
end
end
// processor read interface
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_rack <= 'd0;
up_rdata <= 'd0;
end else begin
up_rack <= up_rreq_s;
if (up_rreq_s == 1'b1) begin
case (up_raddr[7:0])
8'h00: up_rdata <= PCORE_VERSION;
8'h01: up_rdata <= ID;
8'h02: up_rdata <= up_scratch;
8'h10: up_rdata <= {30'd0, up_mmcm_resetn, up_resetn};
8'h11: up_rdata <= {28'd0, up_adc_sync, up_adc_r1_mode, up_adc_ddr_edgesel, up_adc_pin_mode};
8'h15: up_rdata <= up_adc_clk_count_s;
8'h16: up_rdata <= adc_clk_ratio;
8'h17: up_rdata <= {28'd0, up_status_pn_err, up_status_pn_oos, up_status_or, up_status_s};
8'h1a: up_rdata <= {31'd0, up_sync_status_s};
8'h1c: up_rdata <= {3'd0, up_drp_rwn, up_drp_addr, up_drp_wdata};
8'h1d: up_rdata <= {14'd0, up_drp_locked, up_drp_status, up_drp_rdata_hold};
8'h22: up_rdata <= {29'd0, up_status_ovf, up_status_unf, 1'b0};
8'h23: up_rdata <= 32'd8;
8'h28: up_rdata <= {24'd0, adc_usr_chanmax};
8'h29: up_rdata <= up_adc_start_code;
8'h2e: up_rdata <= up_adc_gpio_in;
8'h2f: up_rdata <= up_adc_gpio_out;
default: up_rdata <= 0;
endcase
end else begin
up_rdata <= 32'd0;
end
end
end
// resets
ad_rst i_mmcm_rst_reg (.preset(up_mmcm_preset), .clk(up_clk), .rst(mmcm_rst));
ad_rst i_core_rst_reg (.preset(up_core_preset), .clk(adc_clk), .rst(adc_rst));
// adc control & status
up_xfer_cntrl #(.DATA_WIDTH(36)) i_xfer_cntrl (
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_data_cntrl ({ up_adc_sync,
up_adc_start_code,
up_adc_r1_mode,
up_adc_ddr_edgesel,
up_adc_pin_mode}),
.up_xfer_done (up_cntrl_xfer_done),
.d_rst (adc_rst),
.d_clk (adc_clk),
.d_data_cntrl ({ adc_sync,
adc_start_code,
adc_r1_mode,
adc_ddr_edgesel,
adc_pin_mode}));
up_xfer_status #(.DATA_WIDTH(4)) i_xfer_status (
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_data_status ({up_sync_status_s,
up_status_s,
up_status_ovf_s,
up_status_unf_s}),
.d_rst (adc_rst),
.d_clk (adc_clk),
.d_data_status ({ adc_sync_status,
adc_status,
adc_status_ovf,
adc_status_unf}));
// adc clock monitor
up_clock_mon i_clock_mon (
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_d_count (up_adc_clk_count_s),
.d_rst (adc_rst),
.d_clk (adc_clk));
endmodule
// ***************************************************************************
// ***************************************************************************
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