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Diffstat (limited to 'fpga/usrp2/fifo/packet_generator.v')
-rw-r--r-- | fpga/usrp2/fifo/packet_generator.v | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/fpga/usrp2/fifo/packet_generator.v b/fpga/usrp2/fifo/packet_generator.v deleted file mode 100644 index 5e9d3c2ab..000000000 --- a/fpga/usrp2/fifo/packet_generator.v +++ /dev/null @@ -1,100 +0,0 @@ -// -// Copyright 2011 Ettus Research LLC -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program 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. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <http://www.gnu.org/licenses/>. -// - - - -module packet_generator - (input clk, input reset, input clear, - output reg [7:0] data_o, output sof_o, output eof_o, - input [127:0] header, - output src_rdy_o, input dst_rdy_i); - - localparam len = 32'd2000; - - reg [31:0] state; - reg [31:0] seq; - reg [31:0] crc_out; - wire calc_crc = src_rdy_o & dst_rdy_i & ~(state[31:2] == 30'h3FFF_FFFF); - - - always @(posedge clk) - if(reset | clear) - seq <= 0; - else - if(eof_o & src_rdy_o & dst_rdy_i) - seq <= seq + 1; - - always @(posedge clk) - if(reset | clear) - state <= 0; - else - if(src_rdy_o & dst_rdy_i) - if(state == (len - 1)) - state <= 32'hFFFF_FFFC; - else - state <= state + 1; - - always @* - case(state) - 0 : data_o <= len[31:24]; - 1 : data_o <= len[23:16]; - 2 : data_o <= len[15:8]; - 3 : data_o <= len[7:0]; - 4 : data_o <= seq[31:24]; - 5 : data_o <= seq[23:16]; - 6 : data_o <= seq[15:8]; - 7 : data_o <= seq[7:0]; - 8 : data_o <= header[7:0]; - 9 : data_o <= header[15:8]; - 10 : data_o <= header[23:16]; - 11 : data_o <= header[31:24]; - 12 : data_o <= header[39:32]; - 13 : data_o <= header[47:40]; - 14 : data_o <= header[55:48]; - 15 : data_o <= header[63:56]; - 16 : data_o <= header[71:64]; - 17 : data_o <= header[79:72]; - 18 : data_o <= header[87:80]; - 19 : data_o <= header[95:88]; - 20 : data_o <= header[103:96]; - 21 : data_o <= header[111:104]; - 22 : data_o <= header[119:112]; - 23 : data_o <= header[127:120]; - - 32'hFFFF_FFFC : data_o <= crc_out[31:24]; - 32'hFFFF_FFFD : data_o <= crc_out[23:16]; - 32'hFFFF_FFFE : data_o <= crc_out[15:8]; - 32'hFFFF_FFFF : data_o <= crc_out[7:0]; - default : data_o <= state[7:0]; - endcase // case (state) - - assign src_rdy_o = 1; - assign sof_o = (state == 0); - assign eof_o = (state == 32'hFFFF_FFFF); - - wire clear_crc = eof_o & src_rdy_o & dst_rdy_i; - -// crc crc(.clk(clk), .reset(reset), .clear(clear_crc), .data(data_o), -// .calc(calc_crc), .crc_out(crc_out), .match()); - always @(posedge clk) - if(reset | clear | clear_crc) - crc_out <= 0; - else - if(calc_crc) - crc_out <= crc_out + data_o; - -endmodule // packet_generator |