X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=usrp%2Ffpga%2Fsdr_lib%2Fserial_io.v;fp=usrp%2Ffpga%2Fsdr_lib%2Fserial_io.v;h=0000000000000000000000000000000000000000;hb=a2c00f5cff7407ff10fc6c812d06fefe52c0b6a3;hp=62f92bed2ac2994e1614465700677a9761c8f9d4;hpb=db29a2cfc18554ae0a3c55a4e13dc4cbfa86317f;p=debian%2Fgnuradio

diff --git a/usrp/fpga/sdr_lib/serial_io.v b/usrp/fpga/sdr_lib/serial_io.v
deleted file mode 100644
index 62f92bed..00000000
--- a/usrp/fpga/sdr_lib/serial_io.v
+++ /dev/null
@@ -1,118 +0,0 @@
-// -*- verilog -*-
-//
-//  USRP - Universal Software Radio Peripheral
-//
-//  Copyright (C) 2003,2004 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
-//
-
-
-
-// Serial Control Bus from Cypress chip
-
-module serial_io
-  ( input master_clk,
-    input serial_clock,
-    input serial_data_in,
-    input enable,
-    input reset,
-    inout wire serial_data_out,
-    output reg [6:0] serial_addr,
-    output reg [31:0] serial_data,
-    output wire serial_strobe,
-    input wire [31:0] readback_0,
-    input wire [31:0] readback_1,
-    input wire [31:0] readback_2,
-    input wire [31:0] readback_3,
-    input wire [31:0] readback_4,
-    input wire [31:0] readback_5,
-    input wire [31:0] readback_6,
-    input wire [31:0] readback_7
-    );
-       
-   reg 	      is_read;
-   reg [7:0]  ser_ctr;
-   reg 	      write_done;
-
-   assign serial_data_out = is_read ? serial_data[31] : 1'bz;
-
-   always @(posedge serial_clock, posedge reset, negedge enable)
-     if(reset)
-       ser_ctr <= #1 8'd0;
-     else if(~enable)
-       ser_ctr <= #1 8'd0;
-     else if(ser_ctr == 39)
-       ser_ctr <= #1 8'd0;
-     else
-       ser_ctr <= #1 ser_ctr + 8'd1;
-
-   always @(posedge serial_clock, posedge reset, negedge enable)
-     if(reset)
-       is_read <= #1 1'b0;
-     else if(~enable)
-       is_read <= #1 1'b0;
-     else if((ser_ctr == 7)&&(serial_addr[6]==1))
-       is_read <= #1 1'b1;
-   
-   always @(posedge serial_clock, posedge reset)
-     if(reset)
-       begin
-	  serial_addr <= #1 7'b0;
-	  serial_data <= #1 32'b0;
-	  write_done <= #1 1'b0;
-       end
-     else if(~enable)
-       begin
-	  //serial_addr <= #1 7'b0;
-	  //serial_data <= #1 32'b0;
-	  write_done <= #1 1'b0;
-       end
-     else 
-       begin
-	  if(~is_read && (ser_ctr == 39))
-	    write_done <= #1 1'b1;
-	  else
-	    write_done <= #1 1'b0;
-	  if(is_read & (ser_ctr==8))
-	    case (serial_addr)
-	      7'd1: serial_data <= #1 readback_0;
-	      7'd2: serial_data <= #1 readback_1;
-	      7'd3: serial_data <= #1 readback_2;
-	      7'd4: serial_data <= #1 readback_3;
-	      7'd5: serial_data <= #1 readback_4;
-	      7'd6: serial_data <= #1 readback_5;
-	      7'd7: serial_data <= #1 readback_6;
-	      7'd8: serial_data <= #1 readback_7;
-	      default: serial_data <= #1 32'd0;
-	    endcase // case(serial_addr)
-	  else if(ser_ctr >= 8)
-	    serial_data <= #1 {serial_data[30:0],serial_data_in};
-	  else if(ser_ctr < 8)
-	    serial_addr <= #1 {serial_addr[5:0],serial_data_in};
-       end // else: !if(~enable)
-
-   reg enable_d1, enable_d2;
-   always @(posedge master_clk)
-     begin
-	enable_d1 <= #1 enable;
-	enable_d2 <= #1 enable_d1;
-     end
-
-   assign serial_strobe = enable_d2 & ~enable_d1;
-   
-endmodule // serial_io
-
-