diff --git a/src/open9x.cpp b/src/open9x.cpp
index e7ac85c8b..a85c67fcd 100644
--- a/src/open9x.cpp
+++ b/src/open9x.cpp
@@ -3253,7 +3253,12 @@ inline void open9xInit(OPEN9X_INIT_ARGS)
     eeDirty(EE_GENERAL);
   }
 #endif
-
+#if defined(PCBARM)
+  rtc_init();
+  CoTickDelay(10);  // 20ms
+  rtc_init();
+#endif
+  
   lcdSetContrast();
   backlightOn();