timesync fixes

include/timesync.h

@@ -6,10 +6,10 @@
 #include "timesync.h"
 #include "timekeeper.h"
 
-#define TIME_SYNC_SAMPLES 3   // number of time requests for averaging
-#define TIME_SYNC_CYCLE 20    // seconds between two time requests
+#define TIME_SYNC_SAMPLES 5   // number of time requests for averaging
+#define TIME_SYNC_CYCLE 60    // seconds between two time requests
 #define TIME_SYNC_TIMEOUT 120 // timeout seconds waiting for timeserver answer
-#define TIME_SYNC_TRIGGER 1   // time deviation threshold triggering time sync
+#define TIME_SYNC_TRIGGER 100 // time deviation in millisec triggering a time sync
 #define TIME_SYNC_FRAME_LENGTH 0x06 // timeserver answer frame length
 
 void send_timesync_req(void);