From 65511b23d3f7e97596211b8a2864fa7f52de36ef Mon Sep 17 00:00:00 2001
From: me-no-dev <hristo@espressif.com>
Date: Sat, 18 Aug 2018 16:34:41 +0200
Subject: [PATCH] Add separate method to get free PSRAM and report only
 internal in getFreeHeap

---
 cores/esp32/Esp.cpp | 7 ++++++-
 cores/esp32/Esp.h   | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/cores/esp32/Esp.cpp b/cores/esp32/Esp.cpp
index d9f1da0c..c6631a25 100644
--- a/cores/esp32/Esp.cpp
+++ b/cores/esp32/Esp.cpp
@@ -114,7 +114,12 @@ void EspClass::restart(void)
 
 uint32_t EspClass::getFreeHeap(void)
 {
-    return esp_get_free_heap_size();
+    return heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+}
+
+uint32_t EspClass::getFreePsram(void)
+{
+    return heap_caps_get_free_size(MALLOC_CAP_SPIRAM);
 }
 
 uint8_t EspClass::getChipRevision(void)
diff --git a/cores/esp32/Esp.h b/cores/esp32/Esp.h
index 80e995a6..6ef29ee4 100644
--- a/cores/esp32/Esp.h
+++ b/cores/esp32/Esp.h
@@ -57,6 +57,7 @@ public:
     ~EspClass() {}
     void restart();
     uint32_t getFreeHeap();
+    uint32_t getFreePsram();
     uint8_t getChipRevision();
     uint8_t getCpuFreqMHz(){ return CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ; }
     uint32_t getCycleCount();