diff options
Diffstat (limited to 'gr-radar-mono/src/fpga/models/fifo_1clk.v')
-rw-r--r-- | gr-radar-mono/src/fpga/models/fifo_1clk.v | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/gr-radar-mono/src/fpga/models/fifo_1clk.v b/gr-radar-mono/src/fpga/models/fifo_1clk.v deleted file mode 100644 index 93ada6c8d..000000000 --- a/gr-radar-mono/src/fpga/models/fifo_1clk.v +++ /dev/null @@ -1,88 +0,0 @@ -/* -*- verilog -*- */ -/* - * Copyright (C) 2003 Matt Ettus - * Copyright (C) 2007 Corgan Enterprises LLC - * - * GNU Radio 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, or (at your option) - * any later version. - * - * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -// Model of Altera FIFO with common clock domain - -module fifo_1clk(data, wrreq, rdreq, clock, sclr, q, - full, empty, usedw); - - parameter width = 32; - parameter depth = 4096; - //`define rd_req 0; // Set this to 0 for rd_ack, 1 for rd_req - - input [31:0] data; - input wrreq; - input rdreq; - input clock; - input sclr; - output [31:0] q; - output full; - output empty; - output [11:0] usedw; - - reg [width-1:0] mem [0:depth-1]; - reg [7:0] rdptr; - reg [7:0] wrptr; - -`ifdef rd_req - reg [width-1:0] q; -`else - wire [width-1:0] q; -`endif - - reg [11:0] usedw; - - integer i; - - always @( sclr) - begin - wrptr <= #1 0; - rdptr <= #1 0; - for(i=0;i<depth;i=i+1) - mem[i] <= #1 0; - end - - always @(posedge clock) - if(wrreq) - begin - wrptr <= #1 wrptr+1; - mem[wrptr] <= #1 data; - end - - always @(posedge clock) - if(rdreq) - begin - rdptr <= #1 rdptr+1; -`ifdef rd_req - q <= #1 mem[rdptr]; -`endif - end - -`ifdef rd_req -`else - assign q = mem[rdptr]; -`endif - - always @(posedge clock) - usedw <= #1 wrptr - rdptr; - - assign empty = (wrptr == rdptr); -endmodule |