From 9f40d9a17a4c8a71038ec6674593afabe497bc0b Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes@gmail.com>
Date: Wed, 29 Dec 2021 08:49:30 +0100
Subject: [PATCH] [nRF24] Added ESP8266/ESP32 IRAM attribute

---
 .../nRF24/nRF24_Receive_Interrupt/nRF24_Receive_Interrupt.ino  | 3 +++
 .../nRF24_Transmit_Interrupt/nRF24_Transmit_Interrupt.ino      | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/examples/nRF24/nRF24_Receive_Interrupt/nRF24_Receive_Interrupt.ino b/examples/nRF24/nRF24_Receive_Interrupt/nRF24_Receive_Interrupt.ino
index cafa2964..9e73394a 100644
--- a/examples/nRF24/nRF24_Receive_Interrupt/nRF24_Receive_Interrupt.ino
+++ b/examples/nRF24/nRF24_Receive_Interrupt/nRF24_Receive_Interrupt.ino
@@ -94,6 +94,9 @@ 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/nRF24/nRF24_Transmit_Interrupt/nRF24_Transmit_Interrupt.ino b/examples/nRF24/nRF24_Transmit_Interrupt/nRF24_Transmit_Interrupt.ino
index 9b6720c5..14d0c072 100644
--- a/examples/nRF24/nRF24_Transmit_Interrupt/nRF24_Transmit_Interrupt.ino
+++ b/examples/nRF24/nRF24_Transmit_Interrupt/nRF24_Transmit_Interrupt.ino
@@ -90,6 +90,9 @@ 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) {