Merge branch 'udp'

1 files changed, 47 insertions, 0 deletions

diff --git a/fpga/usrp1/sdr_lib/dpram.v b/fpga/usrp1/sdr_lib/dpram.v
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+++ b/fpga/usrp1/sdr_lib/dpram.v
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+// -*- verilog -*-
+//
+//  USRP - Universal Software Radio Peripheral
+//
+//  Copyright (C) 2003 Matt Ettus
+//
+//  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 2 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, write to the Free Software
+//  Foundation, Inc., 51 Franklin Street, Boston, MA  02110-1301  USA
+//
+
+
+
+module dpram(wclk,wdata,waddr,wen,rclk,rdata,raddr);
+   parameter depth = 4;
+   parameter width = 16;
+   parameter size = 16;
+   
+   input wclk;
+   input [width-1:0] wdata;
+   input [depth-1:0] waddr;
+   input 	     wen;
+
+   input rclk;
+   output reg [width-1:0] rdata;
+   input [depth-1:0]  raddr;
+   
+   reg [width-1:0]    ram [0:size-1];
+   
+   always @(posedge wclk)
+     if(wen)
+       ram[waddr] <= #1 wdata;
+   
+   always @(posedge rclk)
+     rdata <= #1 ram[raddr];
+   
+endmodule // dpram