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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 fifo_pacer
(input clk,
input reset,
input [7:0] rate,
input enable,
input src1_rdy_i, output dst1_rdy_o,
output src2_rdy_o, input dst2_rdy_i,
output underrun, overrun);
wire strobe;
cic_strober strober (.clock(clk), .reset(reset), .enable(enable),
.rate(rate), .strobe_fast(1), .strobe_slow(strobe));
wire all_ready = src1_rdy_i & dst2_rdy_i;
assign dst1_rdy_o = all_ready & strobe;
assign src2_rdy_o = dst1_rdy_o;
assign underrun = strobe & ~src1_rdy_i;
assign overrun = strobe & ~dst2_rdy_i;
endmodule // fifo_pacer
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