From 3c19bda615e79c1de341f69ed9845c5e35334571 Mon Sep 17 00:00:00 2001
From: matt <matt@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Tue, 31 Mar 2009 06:55:21 +0000
Subject: everything but CRC

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10717 221aa14e-8319-0410-a670-987f0aec2ac5
---
 simple_gemac/simple_gemac_tb.v | 32 +++++++++++++++++++++-----------
 simple_gemac/simple_gemac_tx.v | 22 ++++++++++++++++------
 2 files changed, 37 insertions(+), 17 deletions(-)

(limited to 'simple_gemac')

diff --git a/simple_gemac/simple_gemac_tb.v b/simple_gemac/simple_gemac_tb.v
index 30a475960..eacad7545 100644
--- a/simple_gemac/simple_gemac_tb.v
+++ b/simple_gemac/simple_gemac_tb.v
@@ -51,16 +51,16 @@ module simple_gemac_tb;
       input [7:0] data_start;
       input [31:0] data_len;
       begin
-	 $display("Sending Packet");
+	 $display("Sending Packet Len=%d", data_len);
 	 $display($time);
-	 count <= 0;
+	 count <= 1;
 	 tx_data  <= data_start;
 	 tx_error <= 0;
 	 tx_valid <= 1;
 	 while(~tx_ack)
 	   @(posedge tx_clk);
-	 $display("Packet Accepted");
-	 $display($time);
+//	 $display("Packet Accepted");
+//	 $display($time);
 	 while(count < data_len)
 	   begin
 	      tx_data <= tx_data + 1;
@@ -75,7 +75,7 @@ module simple_gemac_tb;
    task SendPacketFromFile;
       input [31:0] data_len;
       begin
-	 $display("Sending Packet From File");
+	 $display("Sending Packet From File Len=%d",data_len);
 	 $display($time);
 	 $readmemh( "test_packet.mem",pkt_rom );     
 	 count 	  = 0;
@@ -84,8 +84,8 @@ module simple_gemac_tb;
 	 tx_valid = 1;
 	 while(~tx_ack)
 	   @(posedge tx_clk);
-	 $display("Packet Accepted");
-	 $display($time);
+//	 $display("Packet Accepted");
+//	 $display($time);
 	 count = 1;
 	 while(count < data_len)
 	   begin
@@ -112,17 +112,27 @@ module simple_gemac_tb;
    initial
      begin
 	@(negedge reset);
-	repeat (20)
+	repeat (100)
 	  @(posedge clk);
 	SendFlowCtrl;
-	//repeat (200)
+	repeat (200)
 	  @(posedge clk);
 	SendPacket(8'hAA,10);
-	//repeat (100)
-	//  @(posedge clk);
+	repeat (100)
+	  @(posedge clk);
 	SendPacketFromFile(60);
+	repeat (100)
+	  @(posedge clk);
 	SendPacketFromFile(59);
+	repeat (100)
+	  @(posedge clk);
 	SendPacketFromFile(58);
+	repeat (100)
+	  @(posedge clk);
+	SendPacketFromFile(61);
+	repeat (100)
+	  @(posedge clk);
+	SendPacketFromFile(62);
 	#10000 $finish;
      end
 
diff --git a/simple_gemac/simple_gemac_tx.v b/simple_gemac/simple_gemac_tx.v
index b104d91a5..783f69e45 100644
--- a/simple_gemac/simple_gemac_tx.v
+++ b/simple_gemac/simple_gemac_tx.v
@@ -195,15 +195,25 @@ module simple_gemac_tx
 
    wire clear_crc   = (tx_state == TX_IDLE);
 
-   wire calc_crc_pre = (tx_state==TX_FIRSTBYTE)||(tx_state==TX_IN_FRAME)||
-	((tx_state==TX_IN_FRAME_2)&tx_valid )||(tx_state==TX_PAD )||(tx_state[6]);
-   reg calc_crc;
-   always @(posedge tx_clk)
-     calc_crc <= calc_crc_pre;
-   
+//   wire calc_crc_pre = (tx_state==TX_FIRSTBYTE)||(tx_state==TX_IN_FRAME)||
+//	((tx_state  ==TX_IN_FRAME_2)&tx_valid )||(tx_state==TX_PAD )||(tx_state[6]);
+  // reg calc_crc;
+  // always @(posedge tx_clk)
+  //   calc_crc <= calc_crc_pre;
+   wire calc_crc    = 0;
+
+   /*
+   wire calc_crc    = ~(tx_state==TX_IDLE) &
+	~(tx_state==TX_IDLE) &
+	~(tx_state==TX_IDLE) &
+	~(tx_state==TX_IDLE) &
+    */
    crc crc(.clk(tx_clk), .reset(reset), .clear(clear_crc),
 	    .data(txd_pre), .calc(calc_crc), .crc_out(crc_out));
 
+
+//	   .data(txd_pre), .calc(calc_crc & ~(tx_state==TX_CRC_0)), .crc_out(crc_out));
+
    assign tx_ack    = (tx_state == TX_FIRSTBYTE);
 
    reg tx_valid_d1;
-- 
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