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author | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
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committer | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
commit | fd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch) | |
tree | 3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/simple_gemac/ethrx_realign.v | |
parent | 3b66804e41891e358c790b453a7a59ec7462dba4 (diff) | |
download | uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.gz uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.bz2 uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.zip |
Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/simple_gemac/ethrx_realign.v')
-rw-r--r-- | fpga/usrp2/simple_gemac/ethrx_realign.v | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/fpga/usrp2/simple_gemac/ethrx_realign.v b/fpga/usrp2/simple_gemac/ethrx_realign.v deleted file mode 100644 index a08feb91e..000000000 --- a/fpga/usrp2/simple_gemac/ethrx_realign.v +++ /dev/null @@ -1,89 +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/>. -// - - -// NOTE: Will not work with single-line frames - -module ethrx_realign - (input clk, input reset, input clear, - input [35:0] datain, input src_rdy_i, output dst_rdy_o, - output [35:0] dataout, output src_rdy_o, input dst_rdy_i); - - reg [1:0] state; - reg [15:0] held; - reg [1:0] held_occ; - - wire xfer_in = src_rdy_i & dst_rdy_o; - wire xfer_out = src_rdy_o & dst_rdy_i; - - wire sof_in = datain[32]; - wire eof_in = datain[33]; - wire [1:0] occ_in = datain[35:34]; - wire sof_out, eof_out; - wire [1:0] occ_out; - - always @(posedge clk) - if(reset | clear) - begin - held <= 0; - held_occ <= 0; - end - else if(xfer_in) - begin - held <= datain[15:0]; - held_occ <= datain[35:34]; - end - - localparam RE_IDLE = 0; - localparam RE_HELD = 1; - localparam RE_DONE = 2; - - always @(posedge clk) - if(reset | clear) - state <= RE_IDLE; - else - case(state) - RE_IDLE : - if(src_rdy_i & dst_rdy_i) - if(eof_in) - state <= RE_DONE; - else - state <= RE_HELD; - - RE_HELD : - if(src_rdy_i & dst_rdy_i & eof_in) - if((occ_in==0)|(occ_in==3)) - state <= RE_DONE; - else - state <= RE_IDLE; - - RE_DONE : - if(dst_rdy_i) - state <= RE_IDLE; - - endcase // case (state) - - - assign sof_out = (state == RE_IDLE); - assign eof_out = (state == RE_DONE) | (occ_in == 1) | (occ_in == 2); - assign occ_out = (state == RE_DONE) ? ((held_occ == 3) ? 1 : 2) : - (occ_in == 1) ? 3 : 0; - - assign dataout = {occ_out,eof_out,sof_out,held,datain[31:16]}; - assign src_rdy_o = (state == RE_DONE) | src_rdy_i; - assign dst_rdy_o = dst_rdy_i & ((state == RE_IDLE)|(state == RE_HELD)); -endmodule // ethrx_realign |