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pluto_hdl_adi/projects/dac_fmc_ebz/zc706/system_top.v

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// ***************************************************************************
// ***************************************************************************
// Copyright 2018 (c) 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 system_top #(
parameter NUM_LINKS = 2,
parameter DEVICE_CODE = 0
) (
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 tx_ref_clk_p,
input tx_ref_clk_n,
input tx_sysref_p,
input tx_sysref_n,
input [ 1:0] tx_sync_p,
input [ 1:0] tx_sync_n,
output [ 7:0] tx_data_p,
output [ 7:0] tx_data_n,
inout [ 4:0] dac_ctrl,
output spi_en,
output spi_csn_dac,
output spi_csn_clk,
output spi_csn_clk2,
output spi_clk,
input spi_miso,
output spi_mosi,
output pmod_spi_clk,
output pmod_spi_csn,
output pmod_spi_mosi,
input pmod_spi_miso,
inout [ 3:0] pmod_gpio
);
// internal signals
wire [63:0] gpio_i;
wire [63:0] gpio_o;
wire [63:0] gpio_t;
wire [ 2:0] spi0_csn;
wire [ 2:0] spi1_csn;
wire spi1_clk;
wire spi1_mosi;
wire spi1_miso;
wire tx_ref_clk;
wire tx_sysref;
wire [ 1:0] tx_sync;
wire tx_sysref_loc;
// spi
// spi_en is active ...
// ... high for AD9135-FMC-EBZ, AD9136-FMC-EBZ, AD9144-FMC-EBZ,
// ... low for AD9171-FMC-EBZ, AD9172-FMC-EBZ, AD9173-FMC-EBZ
// If you are planning to build a bitstream for just one of those boards you
// can hardwire the logic level here.
//
assign spi_en = (DEVICE_CODE <= 2);
// 9135/9144/9172 916(1,2,3,4)
assign spi_csn_dac = spi0_csn[1];
assign spi_csn_clk = spi0_csn[0]; // HMC7044 AD9508
assign spi_csn_clk2 = spi0_csn[2]; // NC ADF4355
/* JESD204 clocks and control signals */
IBUFDS_GTE2 i_ibufds_tx_ref_clk (
.CEB (1'd0),
.I (tx_ref_clk_p),
.IB (tx_ref_clk_n),
.O (tx_ref_clk),
.ODIV2 ());
IBUFDS i_ibufds_tx_sysref (
.I (tx_sysref_p),
.IB (tx_sysref_n),
.O (tx_sysref));
IBUFDS i_ibufds_tx_sync_0 (
.I (tx_sync_p[0]),
.IB (tx_sync_n[0]),
.O (tx_sync[0]));
IBUFDS i_ibufds_tx_sync_1 (
.I (tx_sync_p[1]),
.IB (tx_sync_n[1]),
.O (tx_sync[1]));
/* FMC GPIOs */
ad_iobuf #(
.DATA_WIDTH(5)
) i_iobuf (
.dio_t (gpio_t[21+:5]),
.dio_i (gpio_o[21+:5]),
.dio_o (gpio_i[21+:5]),
.dio_p ({
dac_ctrl /* 25 - 21 */
}));
/*
* Control signals for different FMC boards:
*
* dac_ctrl FMC 9144 like 9162 like 9172 like
* 0 H13 FMC_TXEN_0 FMC_TXEN_0 FMC_PE_CTRL
* 1 C10 NC NC FMC_TXEN_0
* 2 C11 NC NC FMC_TXEN_1
* 3 H14 FMC_TXEN_1 NC NC
* 4 D15 NC FMC_HMC849VCTL NC
*/
assign dac_fifo_bypass = gpio_o[40];
/* PMOD GPIOs 48-51 */
ad_iobuf #(
.DATA_WIDTH(4)
) i_iobuf_pmod (
.dio_t (gpio_t[48+:4]),
.dio_i (gpio_o[48+:4]),
.dio_o (gpio_i[48+:4]),
.dio_p (pmod_gpio));
/* PMOD SPI */
assign pmod_spi_clk = spi1_clk;
assign pmod_spi_csn = spi1_csn[0];
assign pmod_spi_mosi = spi1_mosi;
assign spi1_miso = pmod_spi_miso;
/* Board GPIOS. Buttons, LEDs, etc... */
ad_iobuf #(
.DATA_WIDTH(15)
) i_iobuf_bd (
.dio_t (gpio_t[0+:15]),
.dio_i (gpio_o[0+:15]),
.dio_o (gpio_i[0+:15]),
.dio_p (gpio_bd));
assign gpio_i[63:52] = gpio_o[63:52];
assign gpio_i[47:26] = gpio_o[47:26];
assign gpio_i[20:15] = gpio_o[20:15];
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),
.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),
.spdif (spdif),
.spi0_clk_i (spi_clk),
.spi0_clk_o (spi_clk),
.spi0_csn_0_o (spi0_csn[0]),
.spi0_csn_1_o (spi0_csn[1]),
.spi0_csn_2_o (spi0_csn[2]),
.spi0_csn_i (1'b1),
.spi0_sdi_i (spi_miso),
.spi0_sdo_i (spi_mosi),
.spi0_sdo_o (spi_mosi),
.spi1_clk_i (spi1_clk),
.spi1_clk_o (spi1_clk),
.spi1_csn_0_o (spi1_csn[0]),
.spi1_csn_1_o (spi1_csn[1]),
.spi1_csn_2_o (spi1_csn[2]),
.spi1_csn_i (1'b1),
.spi1_sdi_i (spi1_miso),
.spi1_sdo_i (spi1_mosi),
.spi1_sdo_o (spi1_mosi),
.tx_data_0_n (tx_data_n[0]),
.tx_data_0_p (tx_data_p[0]),
.tx_data_1_n (tx_data_n[1]),
.tx_data_1_p (tx_data_p[1]),
.tx_data_2_n (tx_data_n[2]),
.tx_data_2_p (tx_data_p[2]),
.tx_data_3_n (tx_data_n[3]),
.tx_data_3_p (tx_data_p[3]),
.tx_data_4_n (tx_data_n[4]),
.tx_data_4_p (tx_data_p[4]),
.tx_data_5_n (tx_data_n[5]),
.tx_data_5_p (tx_data_p[5]),
.tx_data_6_n (tx_data_n[6]),
.tx_data_6_p (tx_data_p[6]),
.tx_data_7_n (tx_data_n[7]),
.tx_data_7_p (tx_data_p[7]),
.tx_ref_clk_0 (tx_ref_clk),
.tx_ref_clk_4 (tx_ref_clk),
.tx_sync_0 (tx_sync[NUM_LINKS-1:0]),
.tx_sysref_0 (tx_sysref_loc),
.dac_fifo_bypass (dac_fifo_bypass));
// AD9161/2/4-FMC-EBZ works only in single link,
// The FMC connector instead of SYNC1 has SYSREF connected to it
assign tx_sysref_loc = (DEVICE_CODE == 3) ? tx_sync[1] : tx_sysref;
endmodule
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