diff -u -r1.5 -r1.6
--- HPSTriggerDriver.java	12 Jan 2012 00:26:16 -0000	1.5
+++ HPSTriggerDriver.java	12 Jan 2012 22:52:09 -0000	1.6
@@ -2,21 +2,26 @@

 
 import java.io.IOException;
 import java.io.PrintWriter;

+import java.util.LinkedList;

 import java.util.List;

+import java.util.Queue;
+

 
 import org.lcsim.event.EventHeader;
 import org.lcsim.geometry.Detector;
 import org.lcsim.geometry.IDDecoder;
 import org.lcsim.geometry.Subdetector;

+import org.lcsim.hps.recon.tracking.apv25.HPSAPV25;

 import org.lcsim.hps.util.ClockSingleton;
 import org.lcsim.util.Driver;
 
 /**
  * Reads clusters and makes trigger decision using opposite quadrant criterion.
  * Prints triggers to file if file path specified.

+ * Applies SVT trigger latency and sends trigger signal to SVT

  *
  * @author Sho Uemura <[log in to unmask]>

- * @version $Id: HPSTriggerDriver.java,v 1.5 2012/01/12 00:26:16 meeg Exp $

+ * @version $Id: HPSTriggerDriver.java,v 1.6 2012/01/12 22:52:09 omoreno Exp $

  */
 public abstract class HPSTriggerDriver extends Driver {
 

@@ -29,6 +34,13 @@

 	int numTriggers;
 	private int lastTrigger;
 	private int deadTime = 0;

+        
+        // FIFO queue to store the svt trigger time stamp 
+        public Queue<Double> svtTriggerTimeStamp
+           = new LinkedList<Double>();
+        
+        // SVT trigger latency
+        public static final double svtTriggerLatency = 80.0; // [ns]

 
 	public HPSTriggerDriver() {
 	}

@@ -107,6 +119,27 @@

 				}
 			}
 		}

+                
+                // If an ECal trigger signal has been sent store the trigger
+                // time offset by the SVT trigger latency
+                if(ClockSingleton.triggered()){
+                    svtTriggerTimeStamp.offer(
+                                ClockSingleton.getTime() + svtTriggerLatency);
+                    System.out.println("Trigger added");
+                }
+                
+                // Check if there are any pending SVT triggers to process
+                if(svtTriggerTimeStamp.peek() != null 
+                    && ClockSingleton.getTime() == svtTriggerTimeStamp.peek()){
+                    
+                    if(outputStream != null){
+                        outputStream.printf("SVT Trigger sent on event %d\n", event.getEventNumber());
+                    }
+                    
+                    // Send a trigger signal to the SVT
+                    HPSAPV25.triggerBit = true;
+                    svtTriggerTimeStamp.remove();
+                }

 	}
 
 	public abstract boolean testTrigger(List<HPSEcalCluster> clusters);