From 394dc55fc6d0fa20bbc139f24c26dfd45cb05a5f Mon Sep 17 00:00:00 2001
From: david gauchard <gauchard@laas.fr>
Date: Thu, 19 Nov 2020 22:48:42 +0100
Subject: [PATCH] schedule_recurrent_function_us should be in iram

---
 cores/esp8266/Schedule.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cores/esp8266/Schedule.cpp b/cores/esp8266/Schedule.cpp
index 5ac887ce10..b1230ed675 100644
--- a/cores/esp8266/Schedule.cpp
+++ b/cores/esp8266/Schedule.cpp
@@ -102,6 +102,7 @@ bool schedule_function(const std::function<void(void)>& fn)
     return true;
 }
 
+IRAM_ATTR // (not only) called from ISR
 bool schedule_recurrent_function_us(const std::function<bool(void)>& fn,
     uint32_t repeat_us, const std::function<bool(void)>& alarm)
 {