From 05d77f772317de5d925301aa11bb9a880656dd05 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Thu, 15 Apr 2010 11:24:24 -0700 Subject: moved usrp1 and usrp2 fpga dirs into fpga subdirectory --- fpga/usrp1/sdr_lib/dpram.v | 47 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 fpga/usrp1/sdr_lib/dpram.v (limited to 'fpga/usrp1/sdr_lib/dpram.v') diff --git a/fpga/usrp1/sdr_lib/dpram.v b/fpga/usrp1/sdr_lib/dpram.v new file mode 100644 index 000000000..28af90163 --- /dev/null +++ b/fpga/usrp1/sdr_lib/dpram.v @@ -0,0 +1,47 @@ +// -*- 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 -- cgit v1.2.3