// *************************************************************************** // *************************************************************************** // 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 ( // adc interface adc_rst, adc_clk, adc_enable_0, adc_valid_0, adc_data_0, adc_enable_1, adc_valid_1, adc_data_1, adc_enable_2, adc_valid_2, adc_data_2, adc_enable_3, adc_valid_3, adc_data_3, adc_enable_4, adc_valid_4, adc_data_4, adc_enable_5, adc_valid_5, adc_data_5, adc_enable_6, adc_valid_6, adc_data_6, adc_enable_7, adc_valid_7, adc_data_7, // fifo interface adc_valid, adc_sync, adc_data); // parameters parameter CHANNEL_DATA_WIDTH = 32; parameter NUM_OF_CHANNELS = 8; localparam CH_SCNT = CHANNEL_DATA_WIDTH/16; localparam NUM_OF_CHANNELS_M = 8; localparam P_DW = NUM_OF_CHANNELS*CHANNEL_DATA_WIDTH; localparam NUM_OF_CHANNELS_P = NUM_OF_CHANNELS; localparam P_SCNT = P_DW/16; // 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 adc_valid; output adc_sync; output [((NUM_OF_CHANNELS*CHANNEL_DATA_WIDTH)-1):0] adc_data; // 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 [((CH_SCNT*16*79)-1):0] adc_mux_data = 'd0; reg adc_valid = 'd0; reg adc_sync = 'd0; reg [((NUM_OF_CHANNELS*CHANNEL_DATA_WIDTH)-1):0] adc_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 [(CH_SCNT-1):0] adc_mux_valid_s; wire [(CH_SCNT-1):0] adc_mux_enable_0_s; wire [(CH_SCNT-1):0] adc_mux_enable_1_s; wire [(CH_SCNT-1):0] adc_mux_enable_2_s; wire [(CH_SCNT-1):0] adc_mux_enable_3_s; wire [(CH_SCNT-1):0] adc_mux_enable_4_s; wire [(CH_SCNT-1):0] adc_mux_enable_5_s; wire [(CH_SCNT-1):0] adc_mux_enable_6_s; wire [(CH_SCNT-1):0] adc_mux_enable_7_s; wire [((CH_SCNT*16*1)-1):0] adc_mux_data_0_s; wire [((CH_SCNT*16*2)-1):0] adc_mux_data_1_s; wire [((CH_SCNT*16*3)-1):0] adc_mux_data_2_s; wire [((CH_SCNT*16*4)-1):0] adc_mux_data_3_s; wire [((CH_SCNT*16*5)-1):0] adc_mux_data_4_s; wire [((CH_SCNT*16*6)-1):0] adc_mux_data_5_s; wire [((CH_SCNT*16*7)-1):0] adc_mux_data_6_s; wire [((CH_SCNT*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 [(P_DW-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 < CH_SCNT; 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 < CH_SCNT; 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[((CH_SCNT*16* 9)-1):(CH_SCNT*16* 1)] <= 'd0; adc_mux_data[((CH_SCNT*16*19)-1):(CH_SCNT*16*12)] <= 'd0; adc_mux_data[((CH_SCNT*16*29)-1):(CH_SCNT*16*23)] <= 'd0; adc_mux_data[((CH_SCNT*16*39)-1):(CH_SCNT*16*34)] <= 'd0; adc_mux_data[((CH_SCNT*16*49)-1):(CH_SCNT*16*45)] <= 'd0; adc_mux_data[((CH_SCNT*16*59)-1):(CH_SCNT*16*56)] <= 'd0; adc_mux_data[((CH_SCNT*16*69)-1):(CH_SCNT*16*67)] <= 'd0; adc_mux_data[((CH_SCNT*16*79)-1):(CH_SCNT*16*78)] <= 'd0; adc_mux_data[((CH_SCNT*16* 1)-1):(CH_SCNT*16* 0)] <= adc_mux_data_0_s; adc_mux_data[((CH_SCNT*16*12)-1):(CH_SCNT*16*10)] <= adc_mux_data_1_s; adc_mux_data[((CH_SCNT*16*23)-1):(CH_SCNT*16*20)] <= adc_mux_data_2_s; adc_mux_data[((CH_SCNT*16*34)-1):(CH_SCNT*16*30)] <= adc_mux_data_3_s; adc_mux_data[((CH_SCNT*16*45)-1):(CH_SCNT*16*40)] <= adc_mux_data_4_s; adc_mux_data[((CH_SCNT*16*56)-1):(CH_SCNT*16*50)] <= adc_mux_data_5_s; adc_mux_data[((CH_SCNT*16*67)-1):(CH_SCNT*16*60)] <= adc_mux_data_6_s; adc_mux_data[((CH_SCNT*16*78)-1):(CH_SCNT*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[((CH_SCNT*16*((11*n)+1))-1):(CH_SCNT*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 // *************************************************************************** // ***************************************************************************