Updating emesh monitor

- Removing hard coded name in file (dumb)
- Adding support for multiple packet sizes

src/emesh/hdl/emesh_monitor.v

@@ -0,0 +1,53 @@
+/*******************************************************************************
+ * Function:  EMESH Transaction Monitor
+ * Author:    Andreas Olofsson
+ * License:   MIT (see LICENSE file in OH! repository)
+ *
+ ******************************************************************************/
+
+/* verilator lint_off STMTDLY */
+module emesh_monitor
+  # (parameter PW       = 104,         // packet width
+     parameter FILENAME = "UNDEFINED"  // filename
+     )
+   (
+    //clock and reset
+    input 	   clk,
+    input 	   nreset,
+    //monitors transaction on the wire
+    input 	   dut_valid,
+    input [PW-1:0] dut_packet,
+    input 	   ready_in
+    );
+
+`ifdef DEBUG
+
+   //core name for trace
+   reg [31:0] 	    ftrace;
+   reg [255:0] 	    tracefile;
+
+   //Dumps into
+   initial
+     begin
+	//TODO: Figure out these delays
+	#10
+	  //index should be core ID
+	  $sformat(tracefile,"%0s_%0h%s",FILENAME);
+	ftrace  = $fopen({tracefile}, "w");
+     end
+
+   always @ (posedge clk)
+     if(nreset & dut_valid & ready_in)
+       if (PW==112) begin: p112
+	  $fwrite(ftrace, "%h_%h_%h_%h\n",dut_packet[110:80],dut_packet[79:48],dut_packet[47:16],dut_packet[15:0]);
+       end
+       else if (PW==144) begin: p144
+	  $fwrite(ftrace, "%h_%h_%h_%h\n",dut_packet[143:112],dut_packet[111:48],dut_packet[47:16],dut_packet[15:0]);
+       end
+       else if (PW==208) begin: p208
+	  $fwrite(ftrace, "%h_%h_%h_%h_%h\n",dut_packet[207:144],dut_packet[143:112],dut_packet[111:48],dut_packet[47:16],dut_packet[15:0]);
+       end
+
+`endif //  `ifdef DEBUG
+
+endmodule // emesh_monitor