pluto_hdl_adi/projects/ad6676evb/zc706/system_top.v

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2014-11-10 18:41:01 +00:00
// ***************************************************************************
// ***************************************************************************
// 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 system_top (
DDR_addr,
DDR_ba,
DDR_cas_n,
DDR_ck_n,
DDR_ck_p,
DDR_cke,
DDR_cs_n,
DDR_dm,
DDR_dq,
DDR_dqs_n,
DDR_dqs_p,
DDR_odt,
DDR_ras_n,
DDR_reset_n,
DDR_we_n,
FIXED_IO_ddr_vrn,
FIXED_IO_ddr_vrp,
FIXED_IO_mio,
FIXED_IO_ps_clk,
FIXED_IO_ps_porb,
FIXED_IO_ps_srstb,
gpio_bd,
hdmi_out_clk,
hdmi_vsync,
hdmi_hsync,
hdmi_data_e,
hdmi_data,
spdif,
iic_scl,
iic_sda,
rx_ref_clk_p,
rx_ref_clk_n,
rx_sysref_p,
rx_sysref_n,
rx_sync_p,
rx_sync_n,
rx_data_p,
rx_data_n,
adc_oen,
adc_sela,
adc_selb,
adc_s0,
adc_s1,
adc_resetb,
adc_agc1,
adc_agc2,
adc_agc3,
adc_agc4,
spi_csn,
spi_clk,
spi_mosi,
spi_miso);
inout [14:0] DDR_addr;
inout [ 2:0] DDR_ba;
inout DDR_cas_n;
inout DDR_ck_n;
inout DDR_ck_p;
inout DDR_cke;
inout DDR_cs_n;
inout [ 3:0] DDR_dm;
inout [31:0] DDR_dq;
inout [ 3:0] DDR_dqs_n;
inout [ 3:0] DDR_dqs_p;
inout DDR_odt;
inout DDR_ras_n;
inout DDR_reset_n;
inout DDR_we_n;
inout FIXED_IO_ddr_vrn;
inout FIXED_IO_ddr_vrp;
inout [53:0] FIXED_IO_mio;
inout FIXED_IO_ps_clk;
inout FIXED_IO_ps_porb;
inout FIXED_IO_ps_srstb;
inout [14:0] gpio_bd;
output hdmi_out_clk;
output hdmi_vsync;
output hdmi_hsync;
output hdmi_data_e;
output [23:0] hdmi_data;
output spdif;
inout iic_scl;
inout iic_sda;
input rx_ref_clk_p;
input rx_ref_clk_n;
output rx_sysref_p;
output rx_sysref_n;
output rx_sync_p;
output rx_sync_n;
input [ 1:0] rx_data_p;
input [ 1:0] rx_data_n;
inout adc_oen;
inout adc_sela;
inout adc_selb;
inout adc_s0;
inout adc_s1;
inout adc_resetb;
inout adc_agc1;
inout adc_agc2;
inout adc_agc3;
inout adc_agc4;
output spi_csn;
output spi_clk;
output spi_mosi;
input spi_miso;
// internal registers
reg dma_wr = 'd0;
reg [63:0] dma_data = 'd0;
// internal signals
wire [41:0] gpio_i;
wire [41:0] gpio_o;
wire [41:0] gpio_t;
wire rx_ref_clk;
wire rx_sysref;
wire rx_sync;
wire adc_clk;
wire adc_enable_a;
wire [31:0] adc_data_a;
wire adc_enable_b;
wire [31:0] adc_data_b;
wire [15:0] ps_intrs;
// pack & unpack here
always @(posedge adc_clk) begin
case ({adc_enable_b, adc_enable_a})
2'b11: begin
dma_wr <= 1'b1;
dma_data[63:48] <= adc_data_b[31:16];
dma_data[47:32] <= adc_data_a[31:16];
dma_data[31:16] <= adc_data_b[15: 0];
dma_data[15: 0] <= adc_data_a[15: 0];
end
2'b10: begin
dma_wr <= ~dma_wr;
dma_data[63:48] <= adc_data_b[31:16];
dma_data[47:32] <= adc_data_b[15: 0];
dma_data[31:16] <= dma_data[63:48];
dma_data[15: 0] <= dma_data[47:32];
end
2'b01: begin
dma_wr <= ~dma_wr;
dma_data[63:48] <= adc_data_a[31:16];
dma_data[47:32] <= adc_data_a[15: 0];
dma_data[31:16] <= dma_data[63:48];
dma_data[15: 0] <= dma_data[47:32];
end
default: begin
dma_wr <= 1'b0;
dma_data[63:48] <= 16'd0;
dma_data[47:32] <= 16'd0;
dma_data[31:16] <= 16'd0;
dma_data[15: 0] <= 16'd0;
end
endcase
end
// instantiations
IBUFDS_GTE2 i_ibufds_rx_ref_clk (
.CEB (1'd0),
.I (rx_ref_clk_p),
.IB (rx_ref_clk_n),
.O (rx_ref_clk),
.ODIV2 ());
OBUFDS i_obufds_rx_sysref (
.I (rx_sysref),
.O (rx_sysref_p),
.OB (rx_sysref_n));
OBUFDS i_obufds_rx_sync (
.I (rx_sync),
.O (rx_sync_p),
.OB (rx_sync_n));
ad_iobuf #(.DATA_WIDTH(25)) i_iobuf (
.dt ({gpio_t[41:32], gpio_t[14:0]}),
.di ({gpio_o[41:32], gpio_o[14:0]}),
.do ({gpio_i[41:32], gpio_i[14:0]}),
.dio ({ adc_oen,
adc_sela,
adc_selb,
adc_s0,
adc_s1,
adc_resetb,
adc_agc1,
adc_agc2,
adc_agc3,
adc_agc4,
gpio_bd}));
system_wrapper i_system_wrapper (
.DDR_addr (DDR_addr),
.DDR_ba (DDR_ba),
.DDR_cas_n (DDR_cas_n),
.DDR_ck_n (DDR_ck_n),
.DDR_ck_p (DDR_ck_p),
.DDR_cke (DDR_cke),
.DDR_cs_n (DDR_cs_n),
.DDR_dm (DDR_dm),
.DDR_dq (DDR_dq),
.DDR_dqs_n (DDR_dqs_n),
.DDR_dqs_p (DDR_dqs_p),
.DDR_odt (DDR_odt),
.DDR_ras_n (DDR_ras_n),
.DDR_reset_n (DDR_reset_n),
.DDR_we_n (DDR_we_n),
.FIXED_IO_ddr_vrn (FIXED_IO_ddr_vrn),
.FIXED_IO_ddr_vrp (FIXED_IO_ddr_vrp),
.FIXED_IO_mio (FIXED_IO_mio),
.FIXED_IO_ps_clk (FIXED_IO_ps_clk),
.FIXED_IO_ps_porb (FIXED_IO_ps_porb),
.FIXED_IO_ps_srstb (FIXED_IO_ps_srstb),
.GPIO_I (gpio_i),
.GPIO_O (gpio_o),
.GPIO_T (gpio_t),
.ad6676_dma_intr (ps_intrs[13]),
.ad6676_gpio_intr (),
.ad6676_spi_intr (),
.adc_clk (adc_clk),
.adc_data_a (adc_data_a),
.adc_data_b (adc_data_b),
.adc_enable_a (adc_enable_a),
.adc_enable_b (adc_enable_b),
.adc_valid_a (),
.adc_valid_b (),
.dma_data (dma_data),
.dma_sync (1'b1),
.dma_wr (dma_wr),
.hdmi_data (hdmi_data),
.hdmi_data_e (hdmi_data_e),
.hdmi_hsync (hdmi_hsync),
.hdmi_out_clk (hdmi_out_clk),
.hdmi_vsync (hdmi_vsync),
.iic_main_scl_io (iic_scl),
.iic_main_sda_io (iic_sda),
.ps_intr_0 (ps_intrs[0]),
.ps_intr_1 (ps_intrs[1]),
.ps_intr_10 (ps_intrs[10]),
.ps_intr_11 (ps_intrs[11]),
.ps_intr_12 (ps_intrs[12]),
.ps_intr_13 (ps_intrs[13]),
.ps_intr_2 (ps_intrs[2]),
.ps_intr_3 (ps_intrs[3]),
.ps_intr_4 (ps_intrs[4]),
.ps_intr_5 (ps_intrs[5]),
.ps_intr_6 (ps_intrs[6]),
.ps_intr_7 (ps_intrs[7]),
.ps_intr_8 (ps_intrs[8]),
.ps_intr_9 (ps_intrs[9]),
.rx_data_n (rx_data_n),
.rx_data_p (rx_data_p),
.rx_ref_clk (rx_ref_clk),
.rx_sync (rx_sync),
.rx_sysref (rx_sysref),
.spdif (spdif),
.spi_clk_i (1'b0),
.spi_clk_o (spi_clk),
.spi_csn_i (1'b1),
.spi_csn_o (spi_csn),
.spi_sdi_i (spi_miso),
.spi_sdo_i (1'b0),
.spi_sdo_o (spi_mosi));
endmodule
// ***************************************************************************
// ***************************************************************************