diff --git a/targets/nuttx-stm32f4/Kconfig b/targets/nuttx-stm32f4/Kconfig
index 0682aaff67..96a70cd5be 100644
--- a/targets/nuttx-stm32f4/Kconfig
+++ b/targets/nuttx-stm32f4/Kconfig
@@ -27,23 +27,4 @@ config JERRYSCRIPT_STACKSIZE
 	int "Jerryscript stack size"
 	default 16384
 
-config JERRYSCRIPT_HEAPSIZE
-	int "Jerryscript heap size"
-	default 107520
-
-config JERRYSCRIPT_ERROR_MESSAGES
-	bool "Enable error messages for builtin error objects"
-	default n
-
-config JERRYSCRIPT_MEM_STATS
-	bool "Enable memory statistics"
-	default n
-
-config JERRYSCRIPT_SHOW_OPCODES
-	bool "Enable parser byte-code dumps"
-	default n
-
-config JERRYSCRIPT_DEBUGGER
-	bool "Jerryscript debugger"
-	default n
-endif
+endif # JERRYSCRIPT
diff --git a/targets/nuttx-stm32f4/Makefile b/targets/nuttx-stm32f4/Makefile
index 1f63b09907..33d8241779 100644
--- a/targets/nuttx-stm32f4/Makefile
+++ b/targets/nuttx-stm32f4/Makefile
@@ -14,58 +14,48 @@
 
 -include $(TOPDIR)/Make.defs
 
-# Jerryscript built-in application info
-
+# Jerryscript built-in application information.
 CONFIG_JERRYSCRIPT_PRIORITY ?= SCHED_PRIORITY_DEFAULT
+CONFIG_JERRYSCRIPT_PROGNAME ?= jerry$(EXEEXT)
 CONFIG_JERRYSCRIPT_STACKSIZE ?= 16384
-CONFIG_JERRYSCRIPT_HEAPSIZE ?= 107520
 
-APPNAME = jerry
-# path to the project dir, "jerry-nuttx" by default
-ROOT_DIR = ../../..
+PROGNAME = $(CONFIG_JERRYSCRIPT_PROGNAME)
 PRIORITY = $(CONFIG_JERRYSCRIPT_PRIORITY)
 STACKSIZE = $(CONFIG_JERRYSCRIPT_STACKSIZE)
-CFLAGS += -std=c99 -DJERRY_NDEBUG '-DCONFIG_MEM_HEAP_AREA_SIZE=$(CONFIG_JERRYSCRIPT_HEAPSIZE)'
-CFLAGS += -I$(ROOT_DIR)/ $(shell find $(ROOT_DIR)/jerryscript/jerry-core -type d | sed -r -e 's/^/-I/g')
-CFLAGS += -I$(ROOT_DIR)/jerryscript/jerry-libm/include
-CFLAGS += -I$(ROOT_DIR)/jerryscript/jerry-ext/include
 
-# Fill error messages for builtin error objects
-ifeq ($(CONFIG_JERRYSCRIPT_ERROR_MESSAGES),y)
-	CFLAGS += -DJERRY_ENABLE_ERROR_MESSAGES
-endif
+# Path to the JerryScript project. If not specified, it is supposed
+# that JerryScript is located next to the nuttx-apps folder.
+JERRYSCRIPT_ROOT_DIR ?= ../../../jerryscript
 
-ifeq ($(CONFIG_JERRYSCRIPT_MEM_STATS),y)
-	CFLAGS += -DJMEM_STATS
-endif
+CFLAGS += -std=c99
+CFLAGS += -I$(JERRYSCRIPT_ROOT_DIR)/jerry-core/include
+CFLAGS += -I$(JERRYSCRIPT_ROOT_DIR)/jerry-ext/include
+CFLAGS += -I$(JERRYSCRIPT_ROOT_DIR)/jerry-libm/include
 
-ifeq ($(CONFIG_JERRYSCRIPT_SHOW_OPCODES),y)
-	CFLAGS += -DPARSER_DUMP_BYTE_CODE
-endif
+# These libs should be copied from the JerryScript project.
+LIBS = libjerry-core.a libjerry-ext.a libjerry-port-default.a libjerry-port-default-minimal.a libjerry-libm.a
 
-ifeq ($(CONFIG_JERRYSCRIPT_DEBUGGER),y)
-	CFLAGS += -DJERRY_DEBUGGER
-endif
+APPNAME = jerry
+ASRCS = setjmp.S
+MAINSRC = jerry_main.c
 
-# Jerryscript
+.PHONY: copylibs
+copylibs:
+	cp $(JERRYSCRIPT_ROOT_DIR)/build/lib/lib*.a .
 
-.PHONY: jerry_core_allin.c
-jerry_core_allin.c:
-	find $(ROOT_DIR)/jerryscript/jerry-core -name "*.c" | sed -r -e 's/(\.\.\/)*(.+)/#include "\2"/g' > jerry_core_allin.c
+$(LIBS): copylibs
+	$(firstword $(AR)) x $@
 
-.PHONY: jerry_libm_allin.c
-jerry_libm_allin.c:
-	find $(ROOT_DIR)/jerryscript/jerry-libm -name "*.c" | sed -r -e 's/(\.\.\/)*(.+)/#include "\2"/g' > jerry_libm_allin.c
+.PHONY: updateobjs
+updateobjs:
+	$(eval OBJS += $(shell find . -name "*.obj"))
 
-.PHONY: jerry_ext_allin.c
-jerry_ext_allin.c:
-	find $(ROOT_DIR)/jerryscript/jerry-ext/handler -name "*.c" | sed -r -e 's/(\.\.\/)*(.+)/#include "\2"/g' > jerry_ext_allin.c
+.PHONY: cleanlibs
+cleanlibs: updateobjs
+	rm -f $(OBJS)
 
-ASRCS = setjmp.S
-CSRCS = jerry_core_allin.c jerry_libm_allin.c jerry_ext_allin.c
-MAINSRC = jerry_main.c
+clean: cleanlibs
 
-CONFIG_JERRYSCRIPT_PROGNAME ?= jerry$(EXEEXT)
-PROGNAME = $(CONFIG_JERRYSCRIPT_PROGNAME)
+.built: $(LIBS) updateobjs
 
 include $(APPDIR)/Application.mk
diff --git a/targets/nuttx-stm32f4/Makefile.travis b/targets/nuttx-stm32f4/Makefile.travis
index dd13862fbd..48af0955b5 100644
--- a/targets/nuttx-stm32f4/Makefile.travis
+++ b/targets/nuttx-stm32f4/Makefile.travis
@@ -46,6 +46,10 @@ install: install-apt-get-deps install-kconfig install-clone-nuttx
 
 ## Targets for building NuttX with JerryScript.
 
+# Build JerryScript.
+script-build-jerryscript:
+	tools/build.py --clean --toolchain cmake/toolchain_mcu_stm32f4.cmake --profile=es2015-subset --jerry-cmdline OFF --jerry-libc OFF --lto OFF --jerry-libm ON --all-in-one ON --mem-heap 70 --compile-flag='--sysroot=../nuttx'
+
 # Link in the NuttX JerryScript target directory under the NuttX apps tree.
 script-add-jerryscript-app:
 	ln -s ../../jerryscript/targets/nuttx-stm32f4 ../apps/interpreters/jerryscript
@@ -55,7 +59,7 @@ script-configure-usbnsh:
 	cd ../nuttx/tools && PATH=$(LOCAL_INSTALL)/bin:$$PATH ./configure.sh stm32f4discovery/usbnsh
 
 # Configure and build the firmware (NuttX with JerryScript).
-script: script-add-jerryscript-app script-configure-usbnsh
+script: script-build-jerryscript script-add-jerryscript-app script-configure-usbnsh
 	echo 'CONFIG_HOST_LINUX=y' >> ../nuttx/.config
 	echo 'CONFIG_ARCH_FPU=y' >> ../nuttx/.config
 	echo 'CONFIG_JERRYSCRIPT=y'>> ../nuttx/.config
diff --git a/targets/nuttx-stm32f4/README.md b/targets/nuttx-stm32f4/README.md
index 0471297ea7..84dfd84547 100644
--- a/targets/nuttx-stm32f4/README.md
+++ b/targets/nuttx-stm32f4/README.md
@@ -5,20 +5,21 @@ This folder contains files to run JerryScript on
 
 ### How to build
 
-#### 1. Setting up the build environment for STM32F4-Discovery board
+#### 1. Setup the build environment for STM32F4-Discovery board
 
-Clone JerryScript and NuttX into jerry-nuttx directory
+Clone the necessary projects into a `jerry-nuttx` directory. The last tested working version of NuttX is 7.22.
+
+```sh
+# Create a base folder for all the projects.
+mkdir jerry-nuttx && cd jerry-nuttx
 
-```
-mkdir jerry-nuttx
-cd jerry-nuttx
 git clone https://github.com/jerryscript-project/jerryscript.git
-git clone https://bitbucket.org/nuttx/nuttx.git
-git clone https://bitbucket.org/nuttx/apps.git
+git clone https://bitbucket.org/nuttx/nuttx.git -b nuttx-7.22
+git clone https://bitbucket.org/nuttx/apps.git -b nuttx-7.22
 git clone https://github.com/texane/stlink.git
 ```
 
-The following directory structure is created after these commands
+The following directory structure is created after these commands:
 
 ```
 jerry-nuttx
@@ -30,66 +31,123 @@ jerry-nuttx
   + stlink
 ```
 
-#### 2. Adding JerryScript as an interpreter for NuttX
+#### 2. Build JerryScript for NuttX
 
-```
-cd apps/interpreters
-mkdir jerryscript
-cp ../../jerryscript/targets/nuttx-stm32f4/* ./jerryscript/
+Build JerryScript as a static library using the NuttX folder as sysroot. The created static libraries will be used later by NuttX.
+
+```sh
+# Assuming you are in jerry-nuttx folder.
+jerryscript/tools/build.py \
+    --clean \
+    --lto=OFF \
+    --jerry-cmdline=OFF \
+    --jerry-libc=OFF \
+    --jerry-libm=ON \
+    --all-in-one=ON \
+    --mem-heap=70 \
+    --profile=es2015-subset \
+    --compile-flag="--sysroot=${PWD}/nuttx" \
+    --toolchain=${PWD}/jerryscript/cmake/toolchain_mcu_stm32f4.cmake
 ```
 
-#### 3. Configure NuttX
+#### 3. Copy JerryScript's application files to NuttX
 
+After creating the static libs (see previous step), it is needed to move the JerryScript application files to the NuttX's interpreter path.
+
+```sh
+# Assuming you are in jerry-nuttx folder.
+mkdir -p apps/interpreters/jerryscript
+cp jerryscript/targets/nuttx-stm32f4/* apps/interpreters/jerryscript/
+
+# Or more simply:
+# ln -s jerryscript/targets/nuttx-stm32f4 apps/interpreters/jerryscript
 ```
-# assuming you are in jerry-nuttx folder
+
+#### 4. Configure NuttX
+
+NuttX requires configuration first. The configuration creates a `.config` file in the root folder of NuttX that has all the necessary options for the build.
+
+```sh
+# Assuming you are in jerry-nuttx folder.
 cd nuttx/tools
 
-# configure NuttX USB console shell
+# Configure NuttX to use USB console shell.
 ./configure.sh stm32f4discovery/usbnsh
-
-cd ..
-# might require to run "make menuconfig" twice
-make menuconfig
 ```
 
-We must set the following options:
+By default, JerryScript is not enabled, so it is needed to modify the configuration file.
 
-* Change `Build Setup -> Build Host Platform` from _Windows_ to _Linux_
-* Enable `System Type -> FPU support`
-* Enable `Application Configuration -> Interpreters -> JerryScript`
+##### 4.1 Enable JerryScript without user interaction
 
-If you get `kconfig-mconf: not found` error when you run `make menuconfig` you may have to install kconfig-frontends:
+```sh
+# Assuming you are in jerry-nuttx folder.
+sed --in-place "s/CONFIG_HOST_WINDOWS/# CONFIG_HOST_WINDOWS/g" nuttx/.config
+sed --in-place "s/CONFIG_WINDOWS_CYGWIN/# CONFIG_WINDOWS_CYGWIN/g" nuttx/.config
+sed --in-place "s/CONFIG_TOOLCHAIN_WINDOWS/# CONFIG_TOOLCHAIN_WINDOWS/g" nuttx/.config
 
+cat >> nuttx/.config << EOL
+CONFIG_HOST_LINUX=y
+CONFIG_ARCH_FPU=y
+CONFIG_JERRYSCRIPT=y
+CONFIG_JERRYSCRIPT_PRIORITY=100
+CONFIG_JERRYSCRIPT_STACKSIZE=16384
+EOL
 ```
-# assume you are in jerry-nuttx folder
-sudo apt-get install gperf flex bison libncurses-dev
-git clone https://github.com/jameswalmsley/kconfig-frontends.git
-cd kconfig-frontends
-./bootstrap
-./configure --enable-mconf
+
+##### 4.2 Enable JerryScript using kconfig-frontend
+
+`kconfig-frontend` could be useful if there are another options that should be enabled or disabled in NuttX.
+
+###### 4.2.1 Install kconfig-frontend
+
+```sh
+# Assuming you are in jerry-nuttx folder.
+git clone https://bitbucket.org/nuttx/tools.git nuttx-tools
+cd nuttx-tools/kconfig-frontends
+
+./configure \
+    --disable-nconf \
+    --disable-gconf \
+    --disable-qconf \
+    --disable-utils \
+    --disable-shared \
+    --enable-static \
+    --prefix=${PWD}/install
+
 make
 sudo make install
-sudo ldconfig
-```
 
-#### 4. Build JerryScript for NuttX
+# Add the install folder to PATH
+PATH=$PATH:${PWD}/install/bin
+```
 
+###### 4.2.2 Enable JerryScript
+```sh
+# Assuming you are in jerry-nuttx folder.
+# Might be required to run `make menuconfig` twice.
+make -C nuttx menuconfig
 ```
-# assuming you are in jerry-nuttx folder
-cd nuttx/
-make
+
+* Change `Build Setup -> Build Host Platform` to Linux
+* Enable `System Type -> FPU support`
+* Enable JerryScript `Application Configuration -> Interpreters -> JerryScript`
+
+#### 5. Build NuttX
+
+```sh
+# Assuming you are in jerry-nuttx folder.
+make -C nuttx
 ```
 
-#### 5. Flashing
+#### 6. Flash the device
 
 Connect Mini-USB for power supply and connect Micro-USB for `NSH` console.
 
-To configure `stlink` utility for flashing, follow the instructions in the official [Stlink repository](https://github.com/texane/stlink).
+```sh
+# Assuming you are in jerry-nuttx folder.
+make -C stlink release
 
-To flash,
-```
-# assuming you are in nuttx folder
-sudo ../stlink/build/Release/st-flash write nuttx.bin 0x8000000
+sudo stlink/build/Release/st-flash write nuttx/nuttx.bin 0x8000000
 ```
 
 ### Running JerryScript
@@ -97,7 +155,7 @@ sudo ../stlink/build/Release/st-flash write nuttx.bin 0x8000000
 You can use `minicom` for terminal program, or any other you may like, but set
 baud rate to `115200`.
 
-```
+```sh
 sudo minicom --device=/dev/ttyACM0 --baud=115200
 ```
 
diff --git a/targets/nuttx-stm32f4/jerry_main.c b/targets/nuttx-stm32f4/jerry_main.c
index f4e7bbfefa..4105faba9d 100644
--- a/targets/nuttx-stm32f4/jerry_main.c
+++ b/targets/nuttx-stm32f4/jerry_main.c
@@ -20,7 +20,6 @@
 #include "jerryscript.h"
 #include "jerryscript-ext/handler.h"
 #include "jerryscript-port.h"
-#include "jmem.h"
 #include "setjmp.h"
 
 /**
@@ -94,7 +93,7 @@ read_file (const char *file_name, /**< source code */
 
   rewind (file);
 
-  uint8_t *buffer = jmem_heap_alloc_block_null_on_error (script_len);
+  uint8_t *buffer = (uint8_t *) malloc (script_len);
 
   if (buffer == NULL)
   {
@@ -108,7 +107,7 @@ read_file (const char *file_name, /**< source code */
   if (!bytes_read || bytes_read != script_len)
   {
     jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: failed to read file: %s\n", file_name);
-    jmem_heap_free_block ((void*) buffer, script_len);
+    free ((void*) buffer);
 
     fclose (file);
     return NULL;
@@ -482,12 +481,12 @@ int jerry_main (int argc, char *argv[])
       if (jerry_value_has_error_flag (ret_value))
       {
         print_unhandled_exception (ret_value, source_p);
-        jmem_heap_free_block ((void*) source_p, source_size);
+        free ((void*) source_p);
 
         break;
       }
 
-      jmem_heap_free_block ((void*) source_p, source_size);
+      free ((void*) source_p);
 
       jerry_release_value (ret_value);
       ret_value = jerry_create_undefined ();