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authorJosh Blum <josh@joshknows.com>2012-02-17 16:55:59 -0800
committerJosh Blum <josh@joshknows.com>2012-02-17 16:55:59 -0800
commitace4489066d1621a09e70650a00d736f0b03ed8c (patch)
treef02b34b70da9e9beb0f34dc5e64d48daa5aa4bf6 /fpga/usrp2/gpif/packet_reframer.v
parent8f8ac3397aaa85b64aaa8722efdc1c0c40e93052 (diff)
parent2e37dd87234e5beddd6f76fcda714916f761f812 (diff)
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Merge branch 'fpga_next' into next
Diffstat (limited to 'fpga/usrp2/gpif/packet_reframer.v')
-rw-r--r--fpga/usrp2/gpif/packet_reframer.v34
1 files changed, 13 insertions, 21 deletions
diff --git a/fpga/usrp2/gpif/packet_reframer.v b/fpga/usrp2/gpif/packet_reframer.v
index 923d499ae..8bb8a3678 100644
--- a/fpga/usrp2/gpif/packet_reframer.v
+++ b/fpga/usrp2/gpif/packet_reframer.v
@@ -1,5 +1,5 @@
//
-// Copyright 2011 Ettus Research LLC
+// Copyright 2011-2012 Ettus Research LLC
//
// 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
@@ -16,7 +16,7 @@
//
-// Join vita packets longer than one GPIF frame, drop padding on short frames
+// Join vita packets longer than one GPIF frame
module packet_reframer
(input clk, input reset, input clear,
@@ -25,18 +25,20 @@ module packet_reframer
output dst_rdy_o,
output [18:0] data_o,
output src_rdy_o,
- input dst_rdy_i);
+ input dst_rdy_i,
+ output reg state,
+ output eof_out,
+ output reg [15:0] length);
- reg [1:0] state;
- reg [15:0] length;
+ //reg state;
+ //reg [15:0] length;
localparam RF_IDLE = 0;
localparam RF_PKT = 1;
- localparam RF_DUMP = 2;
always @(posedge clk)
if(reset | clear)
- state <= 0;
+ state <= RF_IDLE;
else
if(src_rdy_i & dst_rdy_i)
case(state)
@@ -47,26 +49,16 @@ module packet_reframer
end
RF_PKT :
begin
- if(length == 2)
- if(data_i[17])
- state <= RF_IDLE;
- else
- state <= RF_DUMP;
- else
- length <= length - 1;
+ if(eof_out) state <= RF_IDLE;
+ length <= length - 1;
end
- RF_DUMP :
- if(data_i[17])
- state <= RF_IDLE;
- default :
- state<= RF_IDLE;
endcase // case (state)
assign dst_rdy_o = dst_rdy_i; // this is a little pessimistic but ok
- assign src_rdy_o = src_rdy_i & (state != RF_DUMP);
+ assign src_rdy_o = src_rdy_i;
wire occ_out = 0;
- wire eof_out = (state == RF_PKT) & (length == 2);
+ assign eof_out = (state == RF_PKT) & (length == 2);
wire sof_out = (state == RF_IDLE);
wire [15:0] data_out = data_i[15:0];
assign data_o = {occ_out, eof_out, sof_out, data_out};