pluto_hdl_adi/library/axi_ad7616/axi_ad7616.v

468 lines
16 KiB
Verilog

// ***************************************************************************
// ***************************************************************************
// Copyright 2014 - 2017 (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 responsabilities 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 axi_ad7616 #(
parameter ID = 0,
parameter IF_TYPE = 1) (
// physical data interface
output rx_sclk,
output rx_cs_n,
output rx_sdo,
input rx_sdi_0,
input rx_sdi_1,
output [15:0] rx_db_o,
input [15:0] rx_db_i,
output rx_db_t,
output rx_rd_n,
output rx_wr_n,
// physical control interface
output rx_cnvst,
input rx_busy,
// AXI Slave Memory Map
input s_axi_aclk,
input s_axi_aresetn,
input s_axi_awvalid,
input [31:0] s_axi_awaddr,
input [ 2:0] s_axi_awprot,
output s_axi_awready,
input s_axi_wvalid,
input [31:0] s_axi_wdata,
input [ 3:0] s_axi_wstrb,
output s_axi_wready,
output s_axi_bvalid,
output [ 1:0] s_axi_bresp,
input s_axi_bready,
input s_axi_arvalid,
input [31:0] s_axi_araddr,
input [ 2:0] s_axi_arprot,
output s_axi_arready,
output s_axi_rvalid,
output [ 1:0] s_axi_rresp,
output [31:0] s_axi_rdata,
input s_axi_rready,
// Write FIFO interface
output adc_valid,
output [15:0] adc_data,
output adc_sync,
output irq);
localparam NUM_OF_SDI = 2;
localparam SERIAL = 0;
localparam PARALLEL = 1;
localparam NEG_EDGE = 1;
localparam UP_ADDRESS_WIDTH = 14;
// internal registers
reg up_wack = 1'b0;
reg up_rack = 1'b0;
reg [31:0] up_rdata = 32'b0;
// internal signals
wire up_clk;
wire up_rstn;
wire up_rst;
wire up_rreq_s;
wire [(UP_ADDRESS_WIDTH-1):0] up_raddr_s;
wire up_wreq_s;
wire [(UP_ADDRESS_WIDTH-1):0] up_waddr_s;
wire [31:0] up_wdata_s;
wire up_wack_if_s;
wire up_rack_if_s;
wire [31:0] up_rdata_if_s;
wire up_wack_cntrl_s;
wire up_rack_cntrl_s;
wire [31:0] up_rdata_cntrl_s;
wire trigger_s;
wire rd_req_s;
wire wr_req_s;
wire [15:0] wr_data_s;
wire [15:0] rd_data_s;
wire rd_valid_s;
wire [ 4:0] burst_length_s;
wire m_axis_ready_s;
wire m_axis_valid_s;
wire [15:0] m_axis_data_s;
wire m_axis_xfer_req_s;
// defaults
assign up_clk = s_axi_aclk;
assign up_rstn = s_axi_aresetn;
assign up_rst = ~s_axi_aresetn;
// processor read interface
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 0) begin
up_wack <= 'd0;
up_rack <= 'd0;
up_rdata <= 'd0;
end else begin
up_wack <= up_wack_if_s | up_wack_cntrl_s;
up_rack <= up_rack_if_s | up_rack_cntrl_s;
up_rdata <= up_rdata_if_s | up_rdata_cntrl_s;
end
end
generate if (IF_TYPE == SERIAL) begin
// ground all parallel interface signals
assign rx_db_o = 16'b0;
assign rx_rd_n = 1'b0;
assign rx_wr_n = 1'b0;
// SPI Framework instances and logic
wire spi_resetn_s;
wire s0_cmd_ready_s;
wire s0_cmd_valid_s;
wire [15:0] s0_cmd_data_s;
wire s0_sdo_data_ready_s;
wire s0_sdo_data_valid_s;
wire [ 7:0] s0_sdo_data_s;
wire s0_sdi_data_ready_s;
wire s0_sdi_data_valid_s;
wire [15:0] s0_sdi_data_s;
wire s0_sync_ready_s;
wire s0_sync_valid_s;
wire [ 7:0] s0_sync_s;
wire s1_cmd_ready_s;
wire s1_cmd_valid_s;
wire [15:0] s1_cmd_data_s;
wire s1_sdo_data_ready_s;
wire s1_sdo_data_valid_s;
wire [ 7:0] s1_sdo_data_s;
wire s1_sdi_data_ready_s;
wire s1_sdi_data_valid_s;
wire [15:0] s1_sdi_data_s;
wire s1_sync_ready_s;
wire s1_sync_valid_s;
wire [ 7:0] s1_sync_s;
wire m_cmd_ready_s;
wire m_cmd_valid_s;
wire [15:0] m_cmd_data_s;
wire m_sdo_data_ready_s;
wire m_sdo_data_valid_s;
wire [7:0] m_sdo_data_s;
wire m_sdi_data_ready_s;
wire m_sdi_data_valid_s;
wire [15:0] m_sdi_data_s;
wire m_sync_ready_s;
wire m_sync_valid_s;
wire [ 7:0] m_sync_s;
wire offload0_cmd_wr_en_s;
wire [15:0] offload0_cmd_wr_data_s;
wire offload0_sdo_wr_en_s;
wire [ 7:0] offload0_sdo_wr_data_s;
wire offload0_mem_reset_s;
wire offload0_enable_s;
wire offload0_enabled_s;
axi_spi_engine #(
.DATA_WIDTH (8),
.NUM_OF_SDI (NUM_OF_SDI),
.NUM_OFFLOAD(1),
.MM_IF_TYPE(1),
.UP_ADDRESS_WIDTH (UP_ADDRESS_WIDTH)
) i_axi_spi_engine (
.up_clk (up_clk),
.up_rstn (up_rstn),
.up_wreq (up_wreq_s),
.up_waddr (up_waddr_s),
.up_wdata (up_wdata_s),
.up_wack (up_wack_if_s),
.up_rreq (up_rreq_s),
.up_raddr (up_raddr_s),
.up_rdata (up_rdata_if_s),
.up_rack (up_rack_if_s),
.irq (irq),
.spi_clk (up_clk),
.spi_resetn (spi_resetn_s),
.cmd_ready (s0_cmd_ready_s),
.cmd_valid (s0_cmd_valid_s),
.cmd_data (s0_cmd_data_s),
.sdo_data_ready (s0_sdo_data_ready_s),
.sdo_data_valid (s0_sdo_data_valid_s),
.sdo_data (s0_sdo_data_s),
.sdi_data_ready (s0_sdi_data_ready_s),
.sdi_data_valid (s0_sdi_data_valid_s),
.sdi_data (s0_sdi_data_s),
.sync_ready (s0_sync_ready_s),
.sync_valid (s0_sync_valid_s),
.sync_data (s0_sync_s),
.offload0_cmd_wr_en (offload0_cmd_wr_en_s),
.offload0_cmd_wr_data (offload0_cmd_wr_data_s),
.offload0_sdo_wr_en (offload0_sdo_wr_en_s),
.offload0_sdo_wr_data (offload0_sdo_wr_data_s),
.offload0_mem_reset (offload0_mem_reset_s),
.offload0_enable (offload0_enable_s),
.offload0_enabled(offload0_enabled_s));
spi_engine_offload #(
.DATA_WIDTH (8),
.NUM_OF_SDI (NUM_OF_SDI)
) i_spi_engine_offload (
.ctrl_clk (up_clk),
.ctrl_cmd_wr_en (offload0_cmd_wr_en_s),
.ctrl_cmd_wr_data (offload0_cmd_wr_data_s),
.ctrl_sdo_wr_en (offload0_sdo_wr_en_s),
.ctrl_sdo_wr_data (offload0_sdo_wr_data_s),
.ctrl_enable (offload0_enable_s),
.ctrl_enabled (offload0_enabled_s),
.ctrl_mem_reset (offload0_mem_reset_s),
.spi_clk (up_clk),
.spi_resetn (spi_resetn_s),
.trigger (trigger_s),
.cmd_valid (s1_cmd_valid_s),
.cmd_ready (s1_cmd_ready_s),
.cmd (s1_cmd_data_s),
.sdo_data_valid (s1_sdo_data_valid_s),
.sdo_data_ready (s1_sdo_data_ready_s),
.sdo_data (s1_sdo_data_s),
.sdi_data_valid (s1_sdi_data_valid_s),
.sdi_data_ready (s1_sdi_data_ready_s),
.sdi_data (s1_sdi_data_s),
.sync_valid (s1_sync_valid_s),
.sync_ready (s1_sync_ready_s),
.sync_data (s1_sync_s),
.offload_sdi_valid (m_axis_valid_s),
.offload_sdi_ready (m_axis_ready_s),
.offload_sdi_data (m_axis_data_s));
spi_engine_interconnect #(
.DATA_WIDTH (8),
.NUM_OF_SDI (NUM_OF_SDI)
) i_spi_engine_interconnect (
.clk (up_clk),
.resetn (spi_resetn_s),
.m_cmd_valid (m_cmd_valid_s),
.m_cmd_ready (m_cmd_ready_s),
.m_cmd_data (m_cmd_data_s),
.m_sdo_valid (m_sdo_data_valid_s),
.m_sdo_ready (m_sdo_data_ready_s),
.m_sdo_data (m_sdo_data_s),
.m_sdi_valid (m_sdi_data_valid_s),
.m_sdi_ready (m_sdi_data_ready_s),
.m_sdi_data (m_sdi_data_s),
.m_sync_valid (m_sync_valid_s),
.m_sync_ready (m_sync_ready_s),
.m_sync (m_sync_s),
.s0_cmd_valid (s0_cmd_valid_s),
.s0_cmd_ready (s0_cmd_ready_s),
.s0_cmd_data (s0_cmd_data_s),
.s0_sdo_valid (s0_sdo_data_valid_s),
.s0_sdo_ready (s0_sdo_data_ready_s),
.s0_sdo_data (s0_sdo_data_s),
.s0_sdi_valid (s0_sdi_data_valid_s),
.s0_sdi_ready (s0_sdi_data_ready_s),
.s0_sdi_data (s0_sdi_data_s),
.s0_sync_valid (s0_sync_valid_s),
.s0_sync_ready (s0_sync_ready_s),
.s0_sync (s0_sync_s),
.s1_cmd_valid (s1_cmd_valid_s),
.s1_cmd_ready (s1_cmd_ready_s),
.s1_cmd_data (s1_cmd_data_s),
.s1_sdo_valid (s1_sdo_data_valid_s),
.s1_sdo_ready (s1_sdo_data_ready_s),
.s1_sdo_data (s1_sdo_data_s),
.s1_sdi_valid (s1_sdi_data_valid_s),
.s1_sdi_ready (s1_sdi_data_ready_s),
.s1_sdi_data (s1_sdi_data_s),
.s1_sync_valid (s1_sync_valid_s),
.s1_sync_ready (s1_sync_ready_s),
.s1_sync (s1_sync_s));
spi_engine_execution #(
.DATA_WIDTH (8),
.NUM_OF_SDI (NUM_OF_SDI)
) i_spi_engine_execution (
.clk (up_clk),
.resetn (spi_resetn_s),
.active (),
.cmd_ready (m_cmd_ready_s),
.cmd_valid (m_cmd_valid_s),
.cmd (m_cmd_data_s),
.sdo_data_valid (m_sdo_data_valid_s),
.sdo_data_ready (m_sdo_data_ready_s),
.sdo_data (m_sdo_data_s),
.sdi_data_ready (m_sdi_data_ready_s),
.sdi_data_valid (m_sdi_data_valid_s),
.sdi_data (m_sdi_data_s),
.sync_ready (m_sync_ready_s),
.sync_valid (m_sync_valid_s),
.sync (m_sync_s),
.sclk (rx_sclk),
.sdo (rx_sdo),
.sdo_t (),
.sdi (rx_sdi_0),
.sdi_1 (rx_sdi_1),
.sdi_2 (1'b0),
.sdi_3 (1'b0),
.cs (rx_cs_n),
.three_wire ());
axi_ad7616_maxis2wrfifo #(
.DATA_WIDTH(16)
) i_maxis2wrfifo (
.clk(up_clk),
.rstn(up_rstn),
.sync_in(trigger_s),
.m_axis_data(m_axis_data_s),
.m_axis_ready(m_axis_ready_s),
.m_axis_valid(m_axis_valid_s),
.fifo_wr_en(adc_valid),
.fifo_wr_data(adc_data),
.fifo_wr_sync(adc_sync)
);
end
endgenerate
generate if (IF_TYPE == PARALLEL) begin
assign rx_sclk = 1'h0;
assign rx_sdo = 1'h0;
assign irq = 1'h0;
assign up_wack_if_s = 1'h0;
assign up_rack_if_s = 1'h0;
assign up_rdata_if_s = 1'h0;
axi_ad7616_pif i_ad7616_parallel_interface (
.cs_n (rx_cs_n),
.db_o (rx_db_o),
.db_i (rx_db_i),
.db_t (rx_db_t),
.rd_n (rx_rd_n),
.wr_n (rx_wr_n),
.adc_data (adc_data),
.adc_valid (adc_valid),
.adc_sync (adc_sync),
.end_of_conv (trigger_s),
.burst_length(burst_length_s),
.clk (up_clk),
.rstn (up_rstn),
.rd_req (rd_req_s),
.wr_req (wr_req_s),
.wr_data (wr_data_s),
.rd_data (rd_data_s),
.rd_valid (rd_valid_s)
);
end
endgenerate
axi_ad7616_control #(
.ID(ID),
.IF_TYPE(IF_TYPE)
) i_ad7616_control (
.cnvst (rx_cnvst),
.busy (rx_busy),
.up_burst_length (burst_length_s),
.up_read_data (rd_data_s),
.up_read_valid (rd_valid_s),
.up_write_data (wr_data_s),
.up_read_req (rd_req_s),
.up_write_req (wr_req_s),
.end_of_conv (trigger_s),
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_wreq (up_wreq_s),
.up_waddr (up_waddr_s),
.up_wdata (up_wdata_s),
.up_wack (up_wack_cntrl_s),
.up_rreq (up_rreq_s),
.up_raddr (up_raddr_s),
.up_rdata (up_rdata_cntrl_s),
.up_rack (up_rack_cntrl_s));
// up bus interface
up_axi #(
.ADDRESS_WIDTH (UP_ADDRESS_WIDTH)
) i_up_axi (
.up_rstn (up_rstn),
.up_clk (up_clk),
.up_axi_awvalid (s_axi_awvalid),
.up_axi_awaddr (s_axi_awaddr),
.up_axi_awready (s_axi_awready),
.up_axi_wvalid (s_axi_wvalid),
.up_axi_wdata (s_axi_wdata),
.up_axi_wstrb (s_axi_wstrb),
.up_axi_wready (s_axi_wready),
.up_axi_bvalid (s_axi_bvalid),
.up_axi_bresp (s_axi_bresp),
.up_axi_bready (s_axi_bready),
.up_axi_arvalid (s_axi_arvalid),
.up_axi_araddr (s_axi_araddr),
.up_axi_arready (s_axi_arready),
.up_axi_rvalid (s_axi_rvalid),
.up_axi_rresp (s_axi_rresp),
.up_axi_rdata (s_axi_rdata),
.up_axi_rready (s_axi_rready),
.up_wreq (up_wreq_s),
.up_waddr (up_waddr_s),
.up_wdata (up_wdata_s),
.up_wack (up_wack),
.up_rreq (up_rreq_s),
.up_raddr (up_raddr_s),
.up_rdata (up_rdata),
.up_rack (up_rack));
endmodule
// ***************************************************************************
// ***************************************************************************