From 70acd5b9aaef25fe87eda86b155aa9081276040a Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes@gmail.com>
Date: Sat, 26 Feb 2022 18:01:34 +0100
Subject: [PATCH] [SX127x] Added missin ISR flag for ESP32/ESP8266

---
 .../SX127x_Channel_Activity_Detection_Interrupt.ino            | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/SX127x/SX127x_Channel_Activity_Detection_Interrupt/SX127x_Channel_Activity_Detection_Interrupt.ino b/examples/SX127x/SX127x_Channel_Activity_Detection_Interrupt/SX127x_Channel_Activity_Detection_Interrupt.ino
index 55372452..c1e0b105 100644
--- a/examples/SX127x/SX127x_Channel_Activity_Detection_Interrupt/SX127x_Channel_Activity_Detection_Interrupt.ino
+++ b/examples/SX127x/SX127x_Channel_Activity_Detection_Interrupt/SX127x_Channel_Activity_Detection_Interrupt.ino
@@ -96,6 +96,9 @@ void setFlagTimeout(void) {
 // is detected within timeout period
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#if defined(ESP8266) || defined(ESP32)
+  ICACHE_RAM_ATTR
+#endif
 void setFlagDetected(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {