From 0886873f54b89ab1ea02b60cdab724b2feb8103c Mon Sep 17 00:00:00 2001
From: bsongis <bsongis@gmail.com>
Date: Fri, 20 Feb 2015 23:03:26 +0100
Subject: [PATCH] Fix for the bug projectkk2glider noticed, thanks!

---
 radio/src/telemetry/telemetry.cpp | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/radio/src/telemetry/telemetry.cpp b/radio/src/telemetry/telemetry.cpp
index 2239661f7..27b85dde7 100644
--- a/radio/src/telemetry/telemetry.cpp
+++ b/radio/src/telemetry/telemetry.cpp
@@ -70,10 +70,14 @@ void TelemetryItem::setValue(const TelemetrySensor & sensor, int32_t newVal, uin
       if (g_eeGeneral.adjustRTC) {
         struct gtm t;
         gettime(&t);
-        t.tm_hour = datetime.hour;
-        t.tm_min = datetime.min;
-        t.tm_sec = datetime.sec;
-        rtcSetTime(&t);
+        if (abs((t.tm_hour-datetime.hour)*3600 + (t.tm_min-datetime.min)*60 + (t.tm_sec-datetime.sec)) > 20) {
+          // we adjust RTC only if difference is > 20 seconds
+          t.tm_hour = datetime.hour;
+          t.tm_min = datetime.min;
+          t.tm_sec = datetime.sec;
+          g_rtcTime = gmktime(&t); // update local timestamp and get wday calculated
+          rtcSetTime(&t);
+        }
       }
     }
     if (datetime.year == 0) {