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Diffstat (limited to 'fpga/usrp2/gpmc/new_read.v')
-rw-r--r-- | fpga/usrp2/gpmc/new_read.v | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/fpga/usrp2/gpmc/new_read.v b/fpga/usrp2/gpmc/new_read.v deleted file mode 100644 index ae3db23cf..000000000 --- a/fpga/usrp2/gpmc/new_read.v +++ /dev/null @@ -1,62 +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 new_read - (input clk, input reset, input clear, - input [17:0] data_i, input src_rdy_i, output dst_rdy_o, - output reg [15:0] EM_D, input EM_NCS, input EM_NOE, - output have_packet, output [15:0] frame_len, output bus_error); - - wire [17:0] data_int; - wire src_rdy_int, dst_rdy_int; - - fifo_cascade #(.WIDTH(18), .SIZE(12)) rx_fifo - (.clk(clk), .reset(reset), .clear(clear), - .datain(data_i), .src_rdy_i(src_rdy_i), .dst_rdy_o(dst_rdy_o), .space(), - .dataout(data_int), .src_rdy_o(src_rdy_int), .dst_rdy_i(dst_rdy_int), .occupied()); - - fifo_watcher fifo_watcher - (.clk(clk), .reset(reset), .clear(clear), - .src_rdy1(src_rdy_i), .dst_rdy1(dst_rdy_o), .sof1(data_i[16]), .eof1(data_i[17]), - .src_rdy2(src_rdy_int), .dst_rdy2(dst_rdy_int), .sof2(data_int[16]), .eof2(data_int[17]), - .have_packet(have_packet), .length(frame_len), .bus_error(bus_error), - .debug()); - - // Synchronize the async control signals - reg [1:0] cs_del, oe_del; - reg [15:0] counter; - - always @(posedge clk) - if(reset) - begin - cs_del <= 2'b11; - oe_del <= 2'b11; - end - else - begin - cs_del <= { cs_del[0], EM_NCS }; - oe_del <= { oe_del[0], EM_NOE }; - end - - assign dst_rdy_int = ( ~cs_del[1] & ~oe_del[1] & oe_del[0]); // change output on trailing edge - - //always @(posedge clk) // 3 cycle latency ( OE -> OE_del -> FIFO -> output REG ) - always @* // 2 cycle latency ( OE -> OE_del -> FIFO ) - EM_D <= data_int[15:0]; - -endmodule // new_read |