From 9d1423b9506c89a51a10b6119d01ce9a82a13b0c Mon Sep 17 00:00:00 2001
From: eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Wed, 30 Apr 2008 03:52:31 +0000
Subject: Merged features/inband-usb -r6431:8293 into trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8295 221aa14e-8319-0410-a670-987f0aec2ac5
---
usrp/fpga/inband_lib/data_packet_fifo.v | 118 --------------------------------
1 file changed, 118 deletions(-)
delete mode 100755 usrp/fpga/inband_lib/data_packet_fifo.v
(limited to 'usrp/fpga/inband_lib/data_packet_fifo.v')
diff --git a/usrp/fpga/inband_lib/data_packet_fifo.v b/usrp/fpga/inband_lib/data_packet_fifo.v
deleted file mode 100755
index a9bcbdae7b..0000000000
--- a/usrp/fpga/inband_lib/data_packet_fifo.v
+++ /dev/null
@@ -1,118 +0,0 @@
-module data_packet_fifo
- ( input reset,
- input clock,
- input [31:0]ram_data_in,
- input write_enable,
- output reg have_space,
- output reg [31:0]ram_data_out,
- output reg pkt_waiting,
- output reg isfull,
- output reg [1:0]usb_ram_packet_out,
- output reg [1:0]usb_ram_packet_in,
- input read_enable,
- input pkt_complete,
- input skip_packet) ;
-
- /* Some parameters for usage later on */
- parameter DATA_WIDTH = 32 ;
- parameter PKT_DEPTH = 128 ;
- parameter NUM_PACKETS = 4 ;
-
- /* Create the RAM here */
- reg [DATA_WIDTH-1:0] usb_ram [PKT_DEPTH*NUM_PACKETS-1:0] ;
-
- /* Create the address signals */
- reg [6:0] usb_ram_offset_out ;
- //reg [1:0] usb_ram_packet_out ;
- reg [6:0] usb_ram_offset_in ;
- //reg [1:0] usb_ram_packet_in ;
-
- wire [6-2+NUM_PACKETS:0] usb_ram_aout ;
- wire [6-2+NUM_PACKETS:0] usb_ram_ain ;
- //reg isfull;
-
- assign usb_ram_aout = {usb_ram_packet_out, usb_ram_offset_out} ;
- assign usb_ram_ain = {usb_ram_packet_in, usb_ram_offset_in} ;
-
- // Check if there is one full packet to process
- always @(usb_ram_ain, usb_ram_aout, isfull)
- begin
- if (usb_ram_ain == usb_ram_aout)
- pkt_waiting <= isfull ;
- else if (usb_ram_ain > usb_ram_aout)
- pkt_waiting <= (usb_ram_ain - usb_ram_aout) >= PKT_DEPTH;
- else
- pkt_waiting <= (usb_ram_ain + 10'b1000000000 - usb_ram_aout) >= PKT_DEPTH;
- end
-
- // Check if there is room
- always @(usb_ram_ain, usb_ram_aout, isfull)
- begin
- if (usb_ram_ain == usb_ram_aout)
- have_space <= ~isfull;
- else if (usb_ram_ain > usb_ram_aout)
- have_space <= ((usb_ram_ain - usb_ram_aout) <= PKT_DEPTH * (NUM_PACKETS - 1))? 1'b1 : 1'b0;
- else
- have_space <= (usb_ram_aout - usb_ram_ain) >= PKT_DEPTH;
- end
-
-
-
- /* RAM Writing/Reading process */
- always @(posedge clock)
- begin
- if( write_enable )
- begin
- usb_ram[usb_ram_ain] <= ram_data_in ;
- end
- ram_data_out <= usb_ram[usb_ram_aout] ;
- end
-
- /* RAM Write/Read Address process */
- always @(posedge clock)
- begin
- if( reset )
- begin
- usb_ram_packet_out <= 0 ;
- usb_ram_offset_out <= 0 ;
- usb_ram_offset_in <= 0 ;
- usb_ram_packet_in <= 0 ;
- isfull <= 0;
- end
- else
- begin
- if( skip_packet )
- begin
- usb_ram_packet_out <= usb_ram_packet_out + 1 ;
- usb_ram_offset_out <= 0 ;
- isfull <= 0;
- end
- else if(read_enable)
- begin
- if( usb_ram_offset_out == 7'b1111111 )
- begin
- isfull <= 0 ;
- usb_ram_offset_out <= 0 ;
- usb_ram_packet_out <= usb_ram_packet_out + 1 ;
- end
- else
- usb_ram_offset_out <= usb_ram_offset_out + 1 ;
- end
- if( pkt_complete )
- begin
- usb_ram_packet_in <= usb_ram_packet_in + 1 ;
- usb_ram_offset_in <= 0 ;
- if ((usb_ram_packet_in + 2'b1) == usb_ram_packet_out)
- isfull <= 1 ;
- end
- else if( write_enable )
- begin
- if (usb_ram_offset_in == 7'b1111111)
- usb_ram_offset_in <= 7'b1111111 ;
- else
- usb_ram_offset_in <= usb_ram_offset_in + 1 ;
- end
- end
- end
-
-endmodule
--
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