From 2b3302c714f9b32e1b9f77d32990109a1fe7930b Mon Sep 17 00:00:00 2001
From: Markus Sattler <help.markus+git@gmail.com>
Date: Sun, 26 Apr 2015 15:40:19 +0200
Subject: [PATCH] add new macro for force function to ram move
 uart_interrupt_handler in ram

---
 cores/esp8266/HardwareSerial.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cores/esp8266/HardwareSerial.cpp b/cores/esp8266/HardwareSerial.cpp
index 46a9c28f3..ad8766444 100644
--- a/cores/esp8266/HardwareSerial.cpp
+++ b/cores/esp8266/HardwareSerial.cpp
@@ -101,7 +101,7 @@ UARTnr_t uart_get_debug();
 // ####################################################################################################
 // ####################################################################################################
 
-void uart_interrupt_handler(uart_t* uart) {
+void ICACHE_RAM_ATTR uart_interrupt_handler(uart_t* uart) {
 
     // -------------- UART 0 --------------
     uint32_t status = READ_PERI_REG(UART_INT_ST(0));