277 lines
13 KiB
Verilog
Executable File
277 lines
13 KiB
Verilog
Executable File
// ***************************************************************************
|
|
// ***************************************************************************
|
|
// 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 util_cpack #(
|
|
|
|
parameter CHANNEL_DATA_WIDTH = 32,
|
|
parameter NUM_OF_CHANNELS = 8) (
|
|
|
|
// adc interface
|
|
|
|
input adc_rst,
|
|
input adc_clk,
|
|
input adc_enable_0,
|
|
input adc_valid_0,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_0,
|
|
input adc_enable_1,
|
|
input adc_valid_1,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_1,
|
|
input adc_enable_2,
|
|
input adc_valid_2,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_2,
|
|
input adc_enable_3,
|
|
input adc_valid_3,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_3,
|
|
input adc_enable_4,
|
|
input adc_valid_4,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_4,
|
|
input adc_enable_5,
|
|
input adc_valid_5,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_5,
|
|
input adc_enable_6,
|
|
input adc_valid_6,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_6,
|
|
input adc_enable_7,
|
|
input adc_valid_7,
|
|
input [(CHANNEL_DATA_WIDTH-1):0] adc_data_7,
|
|
|
|
// fifo interface
|
|
|
|
output reg adc_valid,
|
|
output reg adc_sync,
|
|
output reg [((NUM_OF_CHANNELS*CHANNEL_DATA_WIDTH)-1):0] adc_data);
|
|
|
|
|
|
localparam SAMPLES_PCHANNEL = CHANNEL_DATA_WIDTH/16;
|
|
localparam NUM_OF_CHANNELS_M = 8;
|
|
localparam BUS_DATA_WIDTH = NUM_OF_CHANNELS*CHANNEL_DATA_WIDTH;
|
|
localparam NUM_OF_CHANNELS_P = NUM_OF_CHANNELS;
|
|
|
|
// internal registers
|
|
|
|
reg adc_valid_d = 'd0;
|
|
reg [((NUM_OF_CHANNELS_M*CHANNEL_DATA_WIDTH)-1):0] adc_data_d = 'd0;
|
|
reg adc_mux_valid = 'd0;
|
|
reg [(NUM_OF_CHANNELS_M-1):0] adc_mux_enable = 'd0;
|
|
reg [((SAMPLES_PCHANNEL*16*79)-1):0] adc_mux_data = 'd0;
|
|
|
|
// internal signals
|
|
|
|
wire [(NUM_OF_CHANNELS_M-1):0] adc_enable_s;
|
|
wire [(NUM_OF_CHANNELS_M-1):0] adc_valid_s;
|
|
wire [((NUM_OF_CHANNELS_M*CHANNEL_DATA_WIDTH)-1):0] adc_data_s;
|
|
wire [((NUM_OF_CHANNELS_M*CHANNEL_DATA_WIDTH)-1):0] adc_data_intlv_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_valid_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_0_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_1_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_2_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_3_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_4_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_5_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_6_s;
|
|
wire [(SAMPLES_PCHANNEL-1):0] adc_mux_enable_7_s;
|
|
wire [((SAMPLES_PCHANNEL*16*1)-1):0] adc_mux_data_0_s;
|
|
wire [((SAMPLES_PCHANNEL*16*2)-1):0] adc_mux_data_1_s;
|
|
wire [((SAMPLES_PCHANNEL*16*3)-1):0] adc_mux_data_2_s;
|
|
wire [((SAMPLES_PCHANNEL*16*4)-1):0] adc_mux_data_3_s;
|
|
wire [((SAMPLES_PCHANNEL*16*5)-1):0] adc_mux_data_4_s;
|
|
wire [((SAMPLES_PCHANNEL*16*6)-1):0] adc_mux_data_5_s;
|
|
wire [((SAMPLES_PCHANNEL*16*7)-1):0] adc_mux_data_6_s;
|
|
wire [((SAMPLES_PCHANNEL*16*8)-1):0] adc_mux_data_7_s;
|
|
wire [(NUM_OF_CHANNELS_M-1):0] adc_dsf_valid_s;
|
|
wire [(NUM_OF_CHANNELS_M-1):0] adc_dsf_sync_s;
|
|
wire [(BUS_DATA_WIDTH-1):0] adc_dsf_data_s[(NUM_OF_CHANNELS_M-1):0];
|
|
|
|
// loop variables
|
|
|
|
genvar n;
|
|
|
|
// making things a bit easier
|
|
|
|
assign adc_enable_s = { adc_enable_7, adc_enable_6, adc_enable_5, adc_enable_4,
|
|
adc_enable_3, adc_enable_2, adc_enable_1, adc_enable_0};
|
|
assign adc_valid_s = { adc_valid_7, adc_valid_6, adc_valid_5, adc_valid_4,
|
|
adc_valid_3, adc_valid_2, adc_valid_1, adc_valid_0};
|
|
assign adc_data_s = { adc_data_7, adc_data_6, adc_data_5, adc_data_4,
|
|
adc_data_3, adc_data_2, adc_data_1, adc_data_0};
|
|
|
|
// adc first channel must be always on (doesn't have to be enabled)
|
|
|
|
always @(posedge adc_clk) begin
|
|
if (adc_rst == 1'b1) begin
|
|
adc_valid_d <= 'd0;
|
|
end else begin
|
|
adc_valid_d <= adc_valid_0;
|
|
end
|
|
end
|
|
|
|
// mw requires unused to be zero
|
|
|
|
generate
|
|
for (n = 0; n < NUM_OF_CHANNELS_M; n = n + 1) begin: g_in
|
|
always @(posedge adc_clk) begin
|
|
if ((adc_rst == 1'b1) && (adc_enable_s[n] == 1'b0)) begin
|
|
adc_data_d[((CHANNEL_DATA_WIDTH*(n+1))-1):(CHANNEL_DATA_WIDTH*n)] <= 'd0;
|
|
end else if (adc_valid_s[n] == 1'b1) begin
|
|
adc_data_d[((CHANNEL_DATA_WIDTH*(n+1))-1):(CHANNEL_DATA_WIDTH*n)] <=
|
|
adc_data_s[((CHANNEL_DATA_WIDTH*(n+1))-1):(CHANNEL_DATA_WIDTH*n)];
|
|
end
|
|
end
|
|
end
|
|
endgenerate
|
|
|
|
// interleave data
|
|
|
|
generate
|
|
for (n = 0; n < SAMPLES_PCHANNEL; n = n + 1) begin: g_intlv
|
|
assign adc_data_intlv_s[((16*NUM_OF_CHANNELS_M*(n+1))-1):(16*NUM_OF_CHANNELS_M*n)] =
|
|
{ adc_data_d[(((CHANNEL_DATA_WIDTH*7)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*7)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*6)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*6)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*5)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*5)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*4)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*4)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*3)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*3)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*2)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*2)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*1)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*1)+(16*n))],
|
|
adc_data_d[(((CHANNEL_DATA_WIDTH*0)+(16*(n+1)))-1):((CHANNEL_DATA_WIDTH*0)+(16*n))]};
|
|
end
|
|
endgenerate
|
|
|
|
// mux
|
|
|
|
generate
|
|
for (n = 0; n < SAMPLES_PCHANNEL; n = n + 1) begin: g_mux
|
|
util_cpack_mux i_mux (
|
|
.adc_clk (adc_clk),
|
|
.adc_valid (adc_valid_d),
|
|
.adc_enable (adc_enable_s),
|
|
.adc_data (adc_data_intlv_s[((16*NUM_OF_CHANNELS_M*(n+1))-1):(16*NUM_OF_CHANNELS_M*n)]),
|
|
.adc_mux_valid (adc_mux_valid_s[n]),
|
|
.adc_mux_enable_0 (adc_mux_enable_0_s[n]),
|
|
.adc_mux_data_0 (adc_mux_data_0_s[(((n+1)*16*1)-1):(n*16*1)]),
|
|
.adc_mux_enable_1 (adc_mux_enable_1_s[n]),
|
|
.adc_mux_data_1 (adc_mux_data_1_s[(((n+1)*16*2)-1):(n*16*2)]),
|
|
.adc_mux_enable_2 (adc_mux_enable_2_s[n]),
|
|
.adc_mux_data_2 (adc_mux_data_2_s[(((n+1)*16*3)-1):(n*16*3)]),
|
|
.adc_mux_enable_3 (adc_mux_enable_3_s[n]),
|
|
.adc_mux_data_3 (adc_mux_data_3_s[(((n+1)*16*4)-1):(n*16*4)]),
|
|
.adc_mux_enable_4 (adc_mux_enable_4_s[n]),
|
|
.adc_mux_data_4 (adc_mux_data_4_s[(((n+1)*16*5)-1):(n*16*5)]),
|
|
.adc_mux_enable_5 (adc_mux_enable_5_s[n]),
|
|
.adc_mux_data_5 (adc_mux_data_5_s[(((n+1)*16*6)-1):(n*16*6)]),
|
|
.adc_mux_enable_6 (adc_mux_enable_6_s[n]),
|
|
.adc_mux_data_6 (adc_mux_data_6_s[(((n+1)*16*7)-1):(n*16*7)]),
|
|
.adc_mux_enable_7 (adc_mux_enable_7_s[n]),
|
|
.adc_mux_data_7 (adc_mux_data_7_s[(((n+1)*16*8)-1):(n*16*8)]));
|
|
end
|
|
endgenerate
|
|
|
|
// concat
|
|
|
|
always @(posedge adc_clk) begin
|
|
adc_mux_valid <= & adc_mux_valid_s;
|
|
adc_mux_enable[0] <= & adc_mux_enable_0_s;
|
|
adc_mux_enable[1] <= & adc_mux_enable_1_s;
|
|
adc_mux_enable[2] <= & adc_mux_enable_2_s;
|
|
adc_mux_enable[3] <= & adc_mux_enable_3_s;
|
|
adc_mux_enable[4] <= & adc_mux_enable_4_s;
|
|
adc_mux_enable[5] <= & adc_mux_enable_5_s;
|
|
adc_mux_enable[6] <= & adc_mux_enable_6_s;
|
|
adc_mux_enable[7] <= & adc_mux_enable_7_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16* 9)-1):(SAMPLES_PCHANNEL*16* 1)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*19)-1):(SAMPLES_PCHANNEL*16*12)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*29)-1):(SAMPLES_PCHANNEL*16*23)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*39)-1):(SAMPLES_PCHANNEL*16*34)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*49)-1):(SAMPLES_PCHANNEL*16*45)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*59)-1):(SAMPLES_PCHANNEL*16*56)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*69)-1):(SAMPLES_PCHANNEL*16*67)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*79)-1):(SAMPLES_PCHANNEL*16*78)] <= 'd0;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16* 1)-1):(SAMPLES_PCHANNEL*16* 0)] <= adc_mux_data_0_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*12)-1):(SAMPLES_PCHANNEL*16*10)] <= adc_mux_data_1_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*23)-1):(SAMPLES_PCHANNEL*16*20)] <= adc_mux_data_2_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*34)-1):(SAMPLES_PCHANNEL*16*30)] <= adc_mux_data_3_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*45)-1):(SAMPLES_PCHANNEL*16*40)] <= adc_mux_data_4_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*56)-1):(SAMPLES_PCHANNEL*16*50)] <= adc_mux_data_5_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*67)-1):(SAMPLES_PCHANNEL*16*60)] <= adc_mux_data_6_s;
|
|
adc_mux_data[((SAMPLES_PCHANNEL*16*78)-1):(SAMPLES_PCHANNEL*16*70)] <= adc_mux_data_7_s;
|
|
end
|
|
|
|
// store & fwd
|
|
|
|
generate
|
|
for (n = 0; n < NUM_OF_CHANNELS_P; n = n + 1) begin: g_dsf
|
|
util_cpack_dsf #(
|
|
.NUM_OF_CHANNELS_M (NUM_OF_CHANNELS_M),
|
|
.NUM_OF_CHANNELS_P (NUM_OF_CHANNELS_P),
|
|
.CHANNEL_DATA_WIDTH (CHANNEL_DATA_WIDTH),
|
|
.NUM_OF_CHANNELS_I ((n+1)))
|
|
i_dsf (
|
|
.adc_clk (adc_clk),
|
|
.adc_valid (adc_mux_valid),
|
|
.adc_enable (adc_mux_enable[n]),
|
|
.adc_data (adc_mux_data[((SAMPLES_PCHANNEL*16*((11*n)+1))-1):(SAMPLES_PCHANNEL*16*10*n)]),
|
|
.adc_dsf_valid (adc_dsf_valid_s[n]),
|
|
.adc_dsf_sync (adc_dsf_sync_s[n]),
|
|
.adc_dsf_data (adc_dsf_data_s[n]));
|
|
end
|
|
endgenerate
|
|
|
|
generate
|
|
if (NUM_OF_CHANNELS_M > NUM_OF_CHANNELS_P) begin
|
|
for (n = NUM_OF_CHANNELS_P; n < NUM_OF_CHANNELS_M; n = n + 1) begin: g_def
|
|
assign adc_dsf_valid_s[n] = 'd0;
|
|
assign adc_dsf_sync_s[n] = 'd0;
|
|
assign adc_dsf_data_s[n] = 'd0;
|
|
end
|
|
end
|
|
endgenerate
|
|
|
|
always @(posedge adc_clk) begin
|
|
adc_valid <= | adc_dsf_valid_s;
|
|
adc_sync <= | adc_dsf_sync_s;
|
|
adc_data <= adc_dsf_data_s[7] | adc_dsf_data_s[6] |
|
|
adc_dsf_data_s[5] | adc_dsf_data_s[4] |
|
|
adc_dsf_data_s[3] | adc_dsf_data_s[2] |
|
|
adc_dsf_data_s[1] | adc_dsf_data_s[0];
|
|
end
|
|
|
|
endmodule
|
|
|
|
// ***************************************************************************
|
|
// ***************************************************************************
|