333 lines
9.0 KiB
Verilog
333 lines
9.0 KiB
Verilog
// ***************************************************************************
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// ***************************************************************************
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// Copyright 2011(c) Analog Devices, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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// - Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// - Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// - Neither the name of Analog Devices, Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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// - The use of this software may or may not infringe the patent rights
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// of one or more patent holders. This license does not release you
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// from the requirement that you obtain separate licenses from these
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// patent holders to use this software.
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// - Use of the software either in source or binary form, must be run
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// on or directly connected to an Analog Devices Inc. component.
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//
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// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
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// PARTICULAR PURPOSE ARE DISCLAIMED.
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//
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// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
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// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// ***************************************************************************
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// ***************************************************************************
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// ***************************************************************************
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// ***************************************************************************
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`timescale 1ns/100ps
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module system_top (
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DDR_addr,
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DDR_ba,
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DDR_cas_n,
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DDR_ck_n,
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DDR_ck_p,
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DDR_cke,
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DDR_cs_n,
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DDR_dm,
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DDR_dq,
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DDR_dqs_n,
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DDR_dqs_p,
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DDR_odt,
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DDR_ras_n,
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DDR_reset_n,
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DDR_we_n,
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FIXED_IO_ddr_vrn,
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FIXED_IO_ddr_vrp,
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FIXED_IO_mio,
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FIXED_IO_ps_clk,
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FIXED_IO_ps_porb,
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FIXED_IO_ps_srstb,
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gpio_bd,
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hdmi_out_clk,
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hdmi_vsync,
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hdmi_hsync,
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hdmi_data_e,
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hdmi_data,
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spdif,
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iic_scl,
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iic_sda,
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rx_ref_clk_p,
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rx_ref_clk_n,
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rx_sysref_p,
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rx_sysref_n,
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rx_sync_p,
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rx_sync_n,
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rx_data_p,
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rx_data_n,
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adc_oen,
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adc_sela,
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adc_selb,
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adc_s0,
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adc_s1,
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adc_resetb,
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adc_agc1,
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adc_agc2,
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adc_agc3,
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adc_agc4,
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spi_csn,
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spi_clk,
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spi_mosi,
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spi_miso);
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inout [14:0] DDR_addr;
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inout [ 2:0] DDR_ba;
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inout DDR_cas_n;
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inout DDR_ck_n;
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inout DDR_ck_p;
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inout DDR_cke;
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inout DDR_cs_n;
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inout [ 3:0] DDR_dm;
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inout [31:0] DDR_dq;
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inout [ 3:0] DDR_dqs_n;
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inout [ 3:0] DDR_dqs_p;
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inout DDR_odt;
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inout DDR_ras_n;
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inout DDR_reset_n;
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inout DDR_we_n;
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inout FIXED_IO_ddr_vrn;
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inout FIXED_IO_ddr_vrp;
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inout [53:0] FIXED_IO_mio;
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inout FIXED_IO_ps_clk;
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inout FIXED_IO_ps_porb;
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inout FIXED_IO_ps_srstb;
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inout [14:0] gpio_bd;
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output hdmi_out_clk;
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output hdmi_vsync;
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output hdmi_hsync;
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output hdmi_data_e;
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output [23:0] hdmi_data;
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output spdif;
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inout iic_scl;
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inout iic_sda;
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input rx_ref_clk_p;
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input rx_ref_clk_n;
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output rx_sysref_p;
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output rx_sysref_n;
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output rx_sync_p;
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output rx_sync_n;
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input [ 1:0] rx_data_p;
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input [ 1:0] rx_data_n;
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inout adc_oen;
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inout adc_sela;
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inout adc_selb;
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inout adc_s0;
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inout adc_s1;
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inout adc_resetb;
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inout adc_agc1;
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inout adc_agc2;
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inout adc_agc3;
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inout adc_agc4;
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output spi_csn;
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output spi_clk;
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output spi_mosi;
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input spi_miso;
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// internal registers
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reg dma_wr = 'd0;
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reg [63:0] dma_data = 'd0;
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// internal signals
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wire [41:0] gpio_i;
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wire [41:0] gpio_o;
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wire [41:0] gpio_t;
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wire rx_ref_clk;
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wire rx_sysref;
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wire rx_sync;
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wire adc_clk;
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wire adc_enable_a;
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wire [31:0] adc_data_a;
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wire adc_enable_b;
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wire [31:0] adc_data_b;
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wire [15:0] ps_intrs;
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// pack & unpack here
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always @(posedge adc_clk) begin
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case ({adc_enable_b, adc_enable_a})
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2'b11: begin
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dma_wr <= 1'b1;
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dma_data[63:48] <= adc_data_b[31:16];
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dma_data[47:32] <= adc_data_a[31:16];
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dma_data[31:16] <= adc_data_b[15: 0];
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dma_data[15: 0] <= adc_data_a[15: 0];
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end
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2'b10: begin
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dma_wr <= ~dma_wr;
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dma_data[63:48] <= adc_data_b[31:16];
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dma_data[47:32] <= adc_data_b[15: 0];
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dma_data[31:16] <= dma_data[63:48];
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dma_data[15: 0] <= dma_data[47:32];
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end
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2'b01: begin
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dma_wr <= ~dma_wr;
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dma_data[63:48] <= adc_data_a[31:16];
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dma_data[47:32] <= adc_data_a[15: 0];
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dma_data[31:16] <= dma_data[63:48];
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dma_data[15: 0] <= dma_data[47:32];
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end
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default: begin
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dma_wr <= 1'b0;
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dma_data[63:48] <= 16'd0;
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dma_data[47:32] <= 16'd0;
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dma_data[31:16] <= 16'd0;
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dma_data[15: 0] <= 16'd0;
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end
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endcase
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end
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// instantiations
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IBUFDS_GTE2 i_ibufds_rx_ref_clk (
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.CEB (1'd0),
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.I (rx_ref_clk_p),
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.IB (rx_ref_clk_n),
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.O (rx_ref_clk),
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.ODIV2 ());
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OBUFDS i_obufds_rx_sysref (
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.I (rx_sysref),
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.O (rx_sysref_p),
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.OB (rx_sysref_n));
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OBUFDS i_obufds_rx_sync (
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.I (rx_sync),
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.O (rx_sync_p),
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.OB (rx_sync_n));
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ad_iobuf #(.DATA_WIDTH(25)) i_iobuf (
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.dt ({gpio_t[41:32], gpio_t[14:0]}),
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.di ({gpio_o[41:32], gpio_o[14:0]}),
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.do ({gpio_i[41:32], gpio_i[14:0]}),
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.dio ({ adc_oen,
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adc_sela,
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adc_selb,
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adc_s0,
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adc_s1,
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adc_resetb,
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adc_agc1,
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adc_agc2,
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adc_agc3,
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adc_agc4,
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gpio_bd}));
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system_wrapper i_system_wrapper (
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.DDR_addr (DDR_addr),
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.DDR_ba (DDR_ba),
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.DDR_cas_n (DDR_cas_n),
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.DDR_ck_n (DDR_ck_n),
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.DDR_ck_p (DDR_ck_p),
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.DDR_cke (DDR_cke),
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.DDR_cs_n (DDR_cs_n),
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.DDR_dm (DDR_dm),
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.DDR_dq (DDR_dq),
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.DDR_dqs_n (DDR_dqs_n),
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.DDR_dqs_p (DDR_dqs_p),
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.DDR_odt (DDR_odt),
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.DDR_ras_n (DDR_ras_n),
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.DDR_reset_n (DDR_reset_n),
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.DDR_we_n (DDR_we_n),
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.FIXED_IO_ddr_vrn (FIXED_IO_ddr_vrn),
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.FIXED_IO_ddr_vrp (FIXED_IO_ddr_vrp),
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.FIXED_IO_mio (FIXED_IO_mio),
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.FIXED_IO_ps_clk (FIXED_IO_ps_clk),
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.FIXED_IO_ps_porb (FIXED_IO_ps_porb),
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.FIXED_IO_ps_srstb (FIXED_IO_ps_srstb),
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.GPIO_I (gpio_i),
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.GPIO_O (gpio_o),
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.GPIO_T (gpio_t),
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.ad6676_dma_intr (ps_intrs[13]),
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.ad6676_gpio_intr (),
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.ad6676_spi_intr (),
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.adc_clk (adc_clk),
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.adc_data_a (adc_data_a),
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.adc_data_b (adc_data_b),
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.adc_enable_a (adc_enable_a),
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.adc_enable_b (adc_enable_b),
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.adc_valid_a (),
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.adc_valid_b (),
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.dma_data (dma_data),
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.dma_sync (1'b1),
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.dma_wr (dma_wr),
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.hdmi_data (hdmi_data),
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.hdmi_data_e (hdmi_data_e),
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.hdmi_hsync (hdmi_hsync),
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.hdmi_out_clk (hdmi_out_clk),
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.hdmi_vsync (hdmi_vsync),
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.iic_main_scl_io (iic_scl),
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.iic_main_sda_io (iic_sda),
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.ps_intr_0 (ps_intrs[0]),
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.ps_intr_1 (ps_intrs[1]),
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.ps_intr_10 (ps_intrs[10]),
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.ps_intr_11 (ps_intrs[11]),
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.ps_intr_12 (ps_intrs[12]),
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.ps_intr_13 (ps_intrs[13]),
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.ps_intr_2 (ps_intrs[2]),
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.ps_intr_3 (ps_intrs[3]),
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.ps_intr_4 (ps_intrs[4]),
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.ps_intr_5 (ps_intrs[5]),
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.ps_intr_6 (ps_intrs[6]),
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.ps_intr_7 (ps_intrs[7]),
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.ps_intr_8 (ps_intrs[8]),
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.ps_intr_9 (ps_intrs[9]),
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.rx_data_n (rx_data_n),
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.rx_data_p (rx_data_p),
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.rx_ref_clk (rx_ref_clk),
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.rx_sync (rx_sync),
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.rx_sysref (rx_sysref),
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.spdif (spdif),
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.spi_clk_i (1'b0),
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.spi_clk_o (spi_clk),
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.spi_csn_i (1'b1),
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.spi_csn_o (spi_csn),
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.spi_sdi_i (spi_miso),
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.spi_sdo_i (1'b0),
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.spi_sdo_o (spi_mosi));
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endmodule
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// ***************************************************************************
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// ***************************************************************************
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