Merge branch 'usrp1' into usrp2

Conflicts:
	.gitignore

1 files changed, 145 insertions, 0 deletions

diff --git a/usrp1/tb/usrp_tasks.v b/usrp1/tb/usrp_tasks.v
new file mode 100755
index 000000000..93395f96a
--- /dev/null
+++ b/usrp1/tb/usrp_tasks.v
@@ -0,0 +1,145 @@
+// -*- 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
+//
+
+// Tasks
+
+/////////////////////////////////////////////////
+// USB interface
+
+task initialize_usb;
+begin
+	OE = 0;WE = 0;RD = 0;
+	usbdatareg <= 16'h0;
+end
+endtask
+
+task write_from_usb;
+begin
+	tb_oe <= 1'b1;
+	@(posedge usbclk);
+	usbdatareg <= #1 $random % 65536;
+	WE <= #1 1'b1;
+	@(posedge usbclk)
+	WE <= #1 1'b0;
+	tb_oe <= #1 1'b0;
+end
+endtask
+
+task burst_usb_write;
+      input [31:0] repeat_count;
+      
+      begin
+	 tb_oe <= 1'b1;
+	 repeat(repeat_count)
+	   begin
+	      @(posedge usbclk)
+		usbdatareg <= #1 usbdatareg + 1;	      //$random % 65536;
+	      WE <= #1 1'b1;
+	   end
+	 @(posedge usbclk)
+	   WE <= #1 1'b0;
+	 tb_oe <= 1'b0;
+      end
+endtask // burst_usb_write
+
+
+task read_from_usb;
+begin
+	@(posedge usbclk);
+	RD <= #1 1'b1;
+	@(posedge usbclk);
+	RD <= #1 1'b0;
+	OE <= #1 1'b1;
+	@(posedge usbclk);
+	OE <= #1 1'b0;
+end
+endtask
+
+task burst_usb_read;
+      input [31:0] repeat_count;
+      begin
+	 while (~have_packet_rdy) begin
+	    @(posedge usbclk);
+	 end
+	 
+	 @(posedge usbclk)
+	   RD <= #1 1'b1;
+	 repeat(repeat_count)
+	   begin
+	      @(posedge usbclk)
+		OE <= #1 1'b1;
+	   end
+	 RD <= #1 1'b0;
+	 @(posedge usbclk);
+	 OE <= #1 1'b0;
+      end
+endtask // burst_usb_read
+
+/////////////////////////////////////////////////
+// TX and RX enable
+
+//////////////////////////////////////////////////
+// Set up control bus
+
+`define ch1in_freq 0
+`define ch2in_freq 1
+`define ch3in_freq 2
+`define ch4in_freq 3
+`define ch1out_freq 4
+`define ch2out_freq 5
+`define ch3out_freq 6
+`define ch4out_freq 7
+`define rates 8
+`define misc 9
+  
+  task send_config_word;
+      input [7:0] addr;
+      input [31:0] data;
+      integer i;
+      
+      begin
+	 #10 serenable = 1;
+	 for(i=7;i>=0;i=i-1)
+	   begin
+	      #10 serdata = addr[i];
+	      #10 serclk = 0;
+	      #10 serclk = 1;
+	      #10 serclk = 0;
+	   end
+	 for(i=31;i>=0;i=i-1)
+	   begin
+	      #10 serdata = data[i];
+	      #10 serclk = 0;
+	      #10 serclk = 1;
+	      #10 serclk = 0;
+	   end
+	 #10 serenable = 0;
+	 //	#10 serload = 0;
+	 //	#10 serload = 1;
+	 #10 serclk = 1;
+	 #10 serclk = 0;
+	 //#10 serload = 0;
+      end
+  endtask // send_config_word
+
+
+/////////////////////////////////////////////////////////
+