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authorMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
committerMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
commitfd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch)
tree3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp1/sdr_lib/phase_acc.v
parent3b66804e41891e358c790b453a7a59ec7462dba4 (diff)
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Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp1/sdr_lib/phase_acc.v')
-rwxr-xr-xfpga/usrp1/sdr_lib/phase_acc.v52
1 files changed, 0 insertions, 52 deletions
diff --git a/fpga/usrp1/sdr_lib/phase_acc.v b/fpga/usrp1/sdr_lib/phase_acc.v
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--- a/fpga/usrp1/sdr_lib/phase_acc.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
-//
-
-
-
-// Basic Phase accumulator for DDS
-
-
-module phase_acc (clk,reset,enable,strobe,serial_addr,serial_data,serial_strobe,phase);
- parameter FREQADDR = 0;
- parameter PHASEADDR = 0;
- parameter resolution = 32;
-
- input clk, reset, enable, strobe;
- input [6:0] serial_addr;
- input [31:0] serial_data;
- input serial_strobe;
-
- output reg [resolution-1:0] phase;
- wire [resolution-1:0] freq;
-
- setting_reg #(FREQADDR) sr_rxfreq0(.clock(clk),.reset(1'b0),.strobe(serial_strobe),.addr(serial_addr),.in(serial_data),.out(freq));
-
- always @(posedge clk)
- if(reset)
- phase <= #1 32'b0;
- else if(serial_strobe & (serial_addr == PHASEADDR))
- phase <= #1 serial_data;
- else if(enable & strobe)
- phase <= #1 phase + freq;
-
-endmodule // phase_acc
-
-