From fa4a4de87980ee5fb26fb4ad4403f98f85494aef Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes@gmail.com>
Date: Wed, 29 Dec 2021 08:49:22 +0100
Subject: [PATCH] [SX128x] Added ESP8266/ESP32 IRAM attribute

---
 .../SX128x_Receive_Interrupt/SX128x_Receive_Interrupt.ino      | 3 +++
 .../SX128x_Transmit_Interrupt/SX128x_Transmit_Interrupt.ino    | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/examples/SX128x/SX128x_Receive_Interrupt/SX128x_Receive_Interrupt.ino b/examples/SX128x/SX128x_Receive_Interrupt/SX128x_Receive_Interrupt.ino
index 9bc9eaaa..274121df 100644
--- a/examples/SX128x/SX128x_Receive_Interrupt/SX128x_Receive_Interrupt.ino
+++ b/examples/SX128x/SX128x_Receive_Interrupt/SX128x_Receive_Interrupt.ino
@@ -85,6 +85,9 @@ volatile bool enableInterrupt = true;
 // is received by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#if defined(ESP8266) || defined(ESP32)
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {
diff --git a/examples/SX128x/SX128x_Transmit_Interrupt/SX128x_Transmit_Interrupt.ino b/examples/SX128x/SX128x_Transmit_Interrupt/SX128x_Transmit_Interrupt.ino
index b23fb0c1..55d44faa 100644
--- a/examples/SX128x/SX128x_Transmit_Interrupt/SX128x_Transmit_Interrupt.ino
+++ b/examples/SX128x/SX128x_Transmit_Interrupt/SX128x_Transmit_Interrupt.ino
@@ -77,6 +77,9 @@ volatile bool enableInterrupt = true;
 // is transmitted by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#if defined(ESP8266) || defined(ESP32)
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {