X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=altoslib%2FAltosHexfile.java;h=14f660a0bbcb0c4d38f406d31d2029d3fea3c711;hb=c1b754c12ac32ed38a561d8b35dcbdf82beea896;hp=609d1bcb366f9f3ae747633f1f0a51e8894d04ad;hpb=3c48b0fd504ae97dfaca91d2064b5822ca6e1344;p=fw%2Faltos

diff --git a/altoslib/AltosHexfile.java b/altoslib/AltosHexfile.java
index 609d1bcb..14f660a0 100644
--- a/altoslib/AltosHexfile.java
+++ b/altoslib/AltosHexfile.java
@@ -16,7 +16,7 @@
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 
-package org.altusmetrum.altoslib_13;
+package org.altusmetrum.altoslib_14;
 
 import java.io.*;
 import java.util.LinkedList;
@@ -295,15 +295,20 @@ public class AltosHexfile {
 			return -1;
 
 		try {
-			/* Walk the descriptors looking for the device */
+			/* The address of this has moved depending on
+			 * padding in the linker script. Look forward
+			 * and backwards two bytes to see if we can find it
+			 */
 			a = usb_descriptors.address;
-			while (get_u8(a+1) != AO_USB_DESC_DEVICE) {
-				int delta = get_u8(a);
-				a += delta;
-				if (delta == 0 || a >= max_address)
-					return -1;
-			}
-			return a;
+
+			if (get_u8(a) == 0x12 && get_u8(a+1) == AO_USB_DESC_DEVICE)
+				return a;
+			else if (get_u8(a+1) == 0x12 && get_u8(a+3) == AO_USB_DESC_DEVICE)
+				return a + 2;
+			else if (get_u8(a-2) == 0x12 && get_u8(a-1) == AO_USB_DESC_DEVICE)
+				return a - 2;
+
+			return -1;
 		} catch (ArrayIndexOutOfBoundsException ae) {
 			return -1;
 		}