From ba4af96c2b771e3984887de0a4d2d7338aed1270 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 18 Jan 2014 19:07:39 +1300
Subject: Implement KHD protocol

---
 src/org/traccar/helper/Crc.java | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/org/traccar/helper/Crc.java')

diff --git a/src/org/traccar/helper/Crc.java b/src/org/traccar/helper/Crc.java
index 84224a781..5a668f30a 100644
--- a/src/org/traccar/helper/Crc.java
+++ b/src/org/traccar/helper/Crc.java
@@ -136,6 +136,14 @@ public class Crc {
         }
         return (int) checksum.getValue();
     }
+
+    public static int xorChecksum(ByteBuffer buf) {
+        int checksum = 0;
+        for (int i = 0; i < buf.remaining(); i++) {
+            checksum ^= buf.get(i);
+        }
+        return checksum;
+    }
     
     public static String nmeaChecksum(String msg) {
         int checksum = 0;
-- 
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