From 292257eaf2caf627ab587e860e51b434a95805c3 Mon Sep 17 00:00:00 2001
From: murata <ma2maru@gmail.com>
Date: Thu, 1 Dec 2016 03:39:13 +0900
Subject: [PATCH] AP_Beacon: checksum check uses XOR

---
 libraries/AP_Beacon/AP_Beacon_Pozyx.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/AP_Beacon/AP_Beacon_Pozyx.cpp b/libraries/AP_Beacon/AP_Beacon_Pozyx.cpp
index ca6966883a..d029715df6 100644
--- a/libraries/AP_Beacon/AP_Beacon_Pozyx.cpp
+++ b/libraries/AP_Beacon/AP_Beacon_Pozyx.cpp
@@ -111,11 +111,11 @@ void AP_Beacon_Pozyx::parse_buffer()
     uint8_t checksum = 0;
     checksum ^= parse_msg_id;
     checksum ^= parse_msg_len;
-    for (uint8_t i=0; i<linebuf_len-1; i++) {
+    for (uint8_t i=0; i<linebuf_len; i++) {
         checksum ^= linebuf[i];
     }
     // return if failed checksum check
-    if (checksum != linebuf[linebuf_len-1]) {
+    if (checksum != 0) {
         return;
     }