1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
//
// Copyright 2014 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
module const
#(parameter WIDTH=32)
(input clk, input reset,
input [WIDTH-1:0] config_tdata, input config_tlast, input config_tvalid, output config_tready,
output [WIDTH-1:0] o_tdata, output o_tlast, output o_tvalid, input o_tready);
reg [WIDTH-1:0] const_val;
always @(posedge clk)
if(reset)
const_val <= 0;
else
if(config_tvalid & config_tready)
const_val <= config_tdata;
assign config_tready = 1'b1;
// FIXME do we want to sync constant change to tlasts?
assign o_tdata = const_val;
assign o_tlast = 1'b0; // FIXME do we want something else here?
assign o_tvalid = 1'b1; // caution -- will fill up a fifo
endmodule // const
|
