From 084b860e60448de72aeb38d70aa2d0c21f7e45f2 Mon Sep 17 00:00:00 2001
From: "David A. Mellis" <d.mellis@arduino.cc>
Date: Thu, 19 Jul 2007 00:26:08 +0000
Subject: [PATCH] toggling DTR explicitly before upload (and adding setDTR to
 serial.java)

---
 app/Serial.java   | 3 +++
 app/Uploader.java | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/app/Serial.java b/app/Serial.java
index 802f9511b..2d80271be 100755
--- a/app/Serial.java
+++ b/app/Serial.java
@@ -476,6 +476,9 @@ public class Serial implements SerialPortEventListener {
     write(what.getBytes());
   }
 
+  public void setDTR(boolean state) {
+    port.setDTR(state);
+  }
 
   /**
    * If this just hangs and never completes on Windows, 
diff --git a/app/Uploader.java b/app/Uploader.java
index de47c102a..335da5261 100755
--- a/app/Uploader.java
+++ b/app/Uploader.java
@@ -72,6 +72,15 @@ public abstract class Uploader implements MessageConsumer  {
         Thread.sleep(100);
       } catch (InterruptedException e) {}
     }
+
+    serialPort.setDTR(false);
+
+    try {
+      Thread.sleep(100);
+    } catch (InterruptedException e) {}
+
+    serialPort.setDTR(true);
+    
     serialPort.dispose();
   }