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authorMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
committerMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
commitfd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch)
tree3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/fifo/fifo_2clock_cascade.v
parent3b66804e41891e358c790b453a7a59ec7462dba4 (diff)
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Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/fifo/fifo_2clock_cascade.v')
-rw-r--r--fpga/usrp2/fifo/fifo_2clock_cascade.v58
1 files changed, 0 insertions, 58 deletions
diff --git a/fpga/usrp2/fifo/fifo_2clock_cascade.v b/fpga/usrp2/fifo/fifo_2clock_cascade.v
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--- a/fpga/usrp2/fifo/fifo_2clock_cascade.v
+++ /dev/null
@@ -1,58 +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 fifo_2clock_cascade
- #(parameter WIDTH=32, SIZE=9)
- (input wclk, input [WIDTH-1:0] datain, input src_rdy_i, output dst_rdy_o,
- output [15:0] space, output [15:0] short_space,
- input rclk, output [WIDTH-1:0] dataout, output src_rdy_o, input dst_rdy_i,
- output [15:0] occupied, output [15:0] short_occupied,
- input arst);
-
- wire [WIDTH-1:0] data_int1, data_int2;
- wire src_rdy_int1, src_rdy_int2, dst_rdy_int1, dst_rdy_int2;
- wire [SIZE-1:0] level_wclk, level_rclk;
- wire [4:0] s1_space, s1_occupied, s2_space, s2_occupied;
- wire [15:0] l_space, l_occupied;
-
- fifo_short #(.WIDTH(WIDTH)) shortfifo
- (.clk(wclk), .reset(arst), .clear(0),
- .datain(datain), .src_rdy_i(src_rdy_i), .dst_rdy_o(dst_rdy_o),
- .dataout(data_int1), .src_rdy_o(src_rdy_int1), .dst_rdy_i(dst_rdy_int1),
- .space(s1_space), .occupied(s1_occupied) );
-
- fifo_2clock #(.WIDTH(WIDTH),.SIZE(SIZE)) fifo_2clock
- (.wclk(wclk), .datain(data_int1), .src_rdy_i(src_rdy_int1), .dst_rdy_o(dst_rdy_int1), .space(l_space),
- .rclk(rclk), .dataout(data_int2), .src_rdy_o(src_rdy_int2), .dst_rdy_i(dst_rdy_int2), .occupied(l_occupied),
- .arst(arst) );
-
- fifo_short #(.WIDTH(WIDTH)) shortfifo2
- (.clk(rclk), .reset(arst), .clear(0),
- .datain(data_int2), .src_rdy_i(src_rdy_int2), .dst_rdy_o(dst_rdy_int2),
- .dataout(dataout), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i),
- .space(s2_space), .occupied(s2_occupied));
-
- // Be conservative -- Only advertise space from input side of fifo, occupied from output side
- assign space = {11'b0,s1_space} + l_space;
- assign occupied = {11'b0,s2_occupied} + l_occupied;
-
- // For the fifo_extram, we only want to know the immediately adjacent space
- assign short_space = {11'b0,s1_space};
- assign short_occupied = {11'b0,s2_occupied};
-
-endmodule // fifo_2clock_cascade