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-rw-r--r--fpga/usrp2/vrt/vita_rx_chain.v62
1 files changed, 62 insertions, 0 deletions
diff --git a/fpga/usrp2/vrt/vita_rx_chain.v b/fpga/usrp2/vrt/vita_rx_chain.v
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+++ b/fpga/usrp2/vrt/vita_rx_chain.v
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+//
+// 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 vita_rx_chain
+ #(parameter BASE=0,
+ parameter UNIT=0,
+ parameter FIFOSIZE=10,
+ parameter PROT_ENG_FLAGS=1)
+ (input clk, input reset, input clear,
+ input set_stb, input [7:0] set_addr, input [31:0] set_data,
+ input [63:0] vita_time, output overrun,
+ input [31:0] sample, output run, input strobe,
+ output [35:0] rx_data_o, output rx_src_rdy_o, input rx_dst_rdy_i,
+ output [31:0] debug );
+
+ wire [100:0] sample_data;
+ wire sample_dst_rdy, sample_src_rdy;
+ wire [31:0] vrc_debug, vrf_debug;
+
+ wire [35:0] rx_data_int;
+ wire rx_src_rdy_int, rx_dst_rdy_int;
+
+ vita_rx_control #(.BASE(BASE), .WIDTH(32)) vita_rx_control
+ (.clk(clk), .reset(reset), .clear(clear),
+ .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+ .vita_time(vita_time), .overrun(overrun),
+ .sample(sample), .run(run), .strobe(strobe),
+ .sample_fifo_o(sample_data), .sample_fifo_dst_rdy_i(sample_dst_rdy), .sample_fifo_src_rdy_o(sample_src_rdy),
+ .debug_rx(vrc_debug));
+
+ vita_rx_framer #(.BASE(BASE), .MAXCHAN(1)) vita_rx_framer
+ (.clk(clk), .reset(reset), .clear(clear),
+ .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
+ .sample_fifo_i(sample_data), .sample_fifo_dst_rdy_o(sample_dst_rdy), .sample_fifo_src_rdy_i(sample_src_rdy),
+ .data_o(rx_data_int), .src_rdy_o(rx_src_rdy_int), .dst_rdy_i(rx_dst_rdy_int),
+ .debug_rx(vrf_debug) );
+
+ dsp_framer36 #(.BUF_SIZE(FIFOSIZE),
+ .PORT_SEL(UNIT),
+ .PROT_ENG_FLAGS(PROT_ENG_FLAGS)) dsp0_framer36
+ (.clk(clk), .reset(reset), .clear(clear),
+ .data_i(rx_data_int), .src_rdy_i(rx_src_rdy_int), .dst_rdy_o(rx_dst_rdy_int),
+ .data_o(rx_data_o), .src_rdy_o(rx_src_rdy_o), .dst_rdy_i(rx_dst_rdy_i) );
+
+ assign debug = vrc_debug; // | vrf_debug;
+
+endmodule // vita_rx_chain