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authorMatt Ettus <matt@ettus.com>2009-09-11 01:05:24 -0700
committerMatt Ettus <matt@ettus.com>2009-12-21 16:55:45 -0800
commit029602d026f5e66ea6fcadc6ae75c1808851e444 (patch)
tree590b98bcfc6dd945b707dbd4d2102d7884ee2650 /control_lib
parent37f1e195832e9c7e69a14947a810e8cc72b40e10 (diff)
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barebones udp support. Compiles, but untested.
Diffstat (limited to 'control_lib')
-rw-r--r--control_lib/newfifo/fifo19_rxrealign.v42
1 files changed, 0 insertions, 42 deletions
diff --git a/control_lib/newfifo/fifo19_rxrealign.v b/control_lib/newfifo/fifo19_rxrealign.v
deleted file mode 100644
index 35ad90951..000000000
--- a/control_lib/newfifo/fifo19_rxrealign.v
+++ /dev/null
@@ -1,42 +0,0 @@
-
-
-// Adds a junk line at the beginning of every packet, which the
-// following stages should ignore. This gives us proper alignment due
-// to the 14 byte ethernet header
-
-// Bit 18 -- odd length
-// Bit 17 -- eof
-// Bit 16 -- sof
-// Bit 15:0 -- data
-
-module fifo19_rxrealign
- (input clk, input reset, input clear,
- input [18:0] datain, input src_rdy_i, output dst_rdy_o,
- output [18:0] dataout, output src_rdy_o, input dst_rdy_i);
-
- reg rxre_state;
- localparam RXRE_DUMMY = 0;
- localparam RXRE_PKT = 1;
-
- assign dataout[18] = datain[18];
- assign dataout[17] = datain[17];
- assign dataout[16] = (rxre_state==RXRE_DUMMY) | (datain[17] & datain[16]); // allows for passing error signal
- assign dataout[15:0] = datain[15:0];
-
- always @(posedge clk)
- if(reset | clear)
- rxre_state <= RXRE_DUMMY;
- else if(src_rdy_i & dst_rdy_i)
- case(rxre_state)
- RXRE_DUMMY :
- rxre_state <= RXRE_PKT;
- RXRE_PKT :
- if(datain[17]) // if eof or error
- rxre_state <= RXRE_DUMMY;
- endcase // case (rxre_state)
-
- assign src_rdy_o = src_rdy_i & dst_rdy_i; // Send anytime both sides are ready
- assign dst_rdy_o = src_rdy_i & dst_rdy_i & (rxre_state == RXRE_PKT); // Only consume after the dummy
-
-endmodule // fifo19_rxrealign
-