From aea35419fb7ec0dbae89e4f571ca9716d775585f Mon Sep 17 00:00:00 2001
From: "Arthur B. Grossi" <arthur_bockmann@hotmail.com>
Date: Tue, 28 Dec 2021 18:40:03 -0300
Subject: [PATCH] Fix: Si4432 interrupt examples

Added ICACHE_RAM_ATTR macro to Si4432 interrupt examples
when compiling for ESP8266.
---
 .../Si443x_Receive_Interrupt/Si443x_Receive_Interrupt.ino      | 3 +++
 .../Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino    | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/examples/Si443x/Si443x_Receive_Interrupt/Si443x_Receive_Interrupt.ino b/examples/Si443x/Si443x_Receive_Interrupt/Si443x_Receive_Interrupt.ino
index 16c1af41..e7bbbc73 100644
--- a/examples/Si443x/Si443x_Receive_Interrupt/Si443x_Receive_Interrupt.ino
+++ b/examples/Si443x/Si443x_Receive_Interrupt/Si443x_Receive_Interrupt.ino
@@ -76,6 +76,9 @@ volatile bool enableInterrupt = true;
 // is received by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#ifdef ESP8266
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {
diff --git a/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino b/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino
index 4703233a..0ac83d93 100644
--- a/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino
+++ b/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino
@@ -75,6 +75,9 @@ volatile bool enableInterrupt = true;
 // is transmitted by the module
 // IMPORTANT: this function MUST be 'void' type
 //            and MUST NOT have any arguments!
+#ifdef ESP8266
+  ICACHE_RAM_ATTR
+#endif
 void setFlag(void) {
   // check if the interrupt is enabled
   if(!enableInterrupt) {