From 3a3f25997c84aea2d33a0a40d2677ca4ba5851c3 Mon Sep 17 00:00:00 2001
From: Ivan Grokhotkov <igrokhotkov@gmail.com>
Date: Wed, 5 Aug 2015 08:54:45 -0400
Subject: [PATCH] Disable interrupts inside Esp.getVcc (#567)

---
 cores/esp8266/Esp.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cores/esp8266/Esp.cpp b/cores/esp8266/Esp.cpp
index 299a97996..fc814976c 100644
--- a/cores/esp8266/Esp.cpp
+++ b/cores/esp8266/Esp.cpp
@@ -22,6 +22,7 @@
 #include "flash_utils.h"
 #include "eboot_command.h"
 #include <memory>
+#include "interrupts.h"
 
 extern "C" {
 #include "user_interface.h"
@@ -125,6 +126,7 @@ void EspClass::restart(void)
 
 uint16_t EspClass::getVcc(void)
 {
+    InterruptLock lock;
     return system_get_vdd33();
 }