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authoredolomb <none@example.com>2018-03-15 16:25:12 +0000
committeredolomb <none@example.com>2018-03-15 16:25:12 +0000
commitafdfd60b9735a916cf91fbd7a1a4b0895a88a0ba (patch)
tree208130ced7d8876cfdf7c9f78fe94279c3e9ba55 /demos/ATSAMA5D2
parent2c311851ff7f7b67c7e5dcd1c0cc038100ca120a (diff)
downloadChibiOS-afdfd60b9735a916cf91fbd7a1a4b0895a88a0ba.tar.gz
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Added client-http demo. It works with socket and DNS.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11776 110e8d01-0319-4d1e-a829-52ad28d1bb01
Diffstat (limited to 'demos/ATSAMA5D2')
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.cproject55
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.project101
-rwxr-xr-xdemos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/Makefile257
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/chconf.h615
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/ffconf.h272
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/halconf.h437
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/httpd_opts.h323
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwip.mk20
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwipopts.h2133
-rwxr-xr-xdemos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/mcuconf.h144
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/static_lwipopts.h42
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/debug/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT (DDRAM).launch55
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.c428
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.h247
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/main.c81
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/readme.txt27
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.c119
-rw-r--r--demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.h43
18 files changed, 5399 insertions, 0 deletions
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.cproject b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.cproject
new file mode 100644
index 000000000..e5c8868a7
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.cproject
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
+ <storageModule moduleId="org.eclipse.cdt.core.settings">
+ <cconfiguration id="0.887290726">
+ <storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="0.887290726" moduleId="org.eclipse.cdt.core.settings" name="Default">
+ <externalSettings/>
+ <extensions>
+ <extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+ <extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+ <extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+ <extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+ <extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
+ <extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+ </extensions>
+ </storageModule>
+ <storageModule moduleId="cdtBuildSystem" version="4.0.0">
+ <configuration buildProperties="" description="" id="0.887290726" name="Default" parent="org.eclipse.cdt.build.core.prefbase.cfg">
+ <folderInfo id="0.887290726." name="/" resourcePath="">
+ <toolChain id="org.eclipse.cdt.build.core.prefbase.toolchain.1403624288" name="No ToolChain" resourceTypeBasedDiscovery="false" superClass="org.eclipse.cdt.build.core.prefbase.toolchain">
+ <targetPlatform id="org.eclipse.cdt.build.core.prefbase.toolchain.1403624288.1863899374" name=""/>
+ <builder id="org.eclipse.cdt.build.core.settings.default.builder.2020850466" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" superClass="org.eclipse.cdt.build.core.settings.default.builder"/>
+ <tool id="org.eclipse.cdt.build.core.settings.holder.libs.1502504809" name="holder for library settings" superClass="org.eclipse.cdt.build.core.settings.holder.libs"/>
+ <tool id="org.eclipse.cdt.build.core.settings.holder.186753657" name="Assembly" superClass="org.eclipse.cdt.build.core.settings.holder">
+ <inputType id="org.eclipse.cdt.build.core.settings.holder.inType.969767514" languageId="org.eclipse.cdt.core.assembly" languageName="Assembly" sourceContentType="org.eclipse.cdt.core.asmSource" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
+ </tool>
+ <tool id="org.eclipse.cdt.build.core.settings.holder.1186538171" name="GNU C++" superClass="org.eclipse.cdt.build.core.settings.holder">
+ <inputType id="org.eclipse.cdt.build.core.settings.holder.inType.1939018649" languageId="org.eclipse.cdt.core.g++" languageName="GNU C++" sourceContentType="org.eclipse.cdt.core.cxxSource,org.eclipse.cdt.core.cxxHeader" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
+ </tool>
+ <tool id="org.eclipse.cdt.build.core.settings.holder.1047469674" name="GNU C" superClass="org.eclipse.cdt.build.core.settings.holder">
+ <inputType id="org.eclipse.cdt.build.core.settings.holder.inType.912781340" languageId="org.eclipse.cdt.core.gcc" languageName="GNU C" sourceContentType="org.eclipse.cdt.core.cSource,org.eclipse.cdt.core.cHeader" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
+ </tool>
+ </toolChain>
+ </folderInfo>
+ </configuration>
+ </storageModule>
+ <storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
+ </cconfiguration>
+ </storageModule>
+ <storageModule moduleId="cdtBuildSystem" version="4.0.0">
+ <project id="RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT.null.1406015863" name="RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT"/>
+ </storageModule>
+ <storageModule moduleId="scannerConfiguration">
+ <autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+ <scannerConfigBuildInfo instanceId="0.1570569554">
+ <autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>
+ </scannerConfigBuildInfo>
+ <scannerConfigBuildInfo instanceId="0.1138914148">
+ <autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+ </scannerConfigBuildInfo>
+ <scannerConfigBuildInfo instanceId="0.887290726">
+ <autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+ </scannerConfigBuildInfo>
+ </storageModule>
+ <storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+</cproject>
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.project b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.project
new file mode 100644
index 000000000..5dca01004
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/.project
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+ <name>RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT</name>
+ <comment></comment>
+ <projects>
+ </projects>
+ <buildSpec>
+ <buildCommand>
+ <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+ <triggers>clean,full,incremental,</triggers>
+ <arguments>
+ <dictionary>
+ <key>?name?</key>
+ <value></value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.append_environment</key>
+ <value>true</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.autoBuildTarget</key>
+ <value>all</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.buildArguments</key>
+ <value>-j1</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.buildCommand</key>
+ <value>make</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.cleanBuildTarget</key>
+ <value>clean</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.contents</key>
+ <value>org.eclipse.cdt.make.core.activeConfigSettings</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.enableAutoBuild</key>
+ <value>false</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.enableCleanBuild</key>
+ <value>true</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.enableFullBuild</key>
+ <value>true</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.fullBuildTarget</key>
+ <value>all</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.stopOnError</key>
+ <value>true</value>
+ </dictionary>
+ <dictionary>
+ <key>org.eclipse.cdt.make.core.useDefaultBuildCmd</key>
+ <value>true</value>
+ </dictionary>
+ </arguments>
+ </buildCommand>
+ <buildCommand>
+ <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+ <triggers>full,incremental,</triggers>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ </buildSpec>
+ <natures>
+ <nature>org.eclipse.cdt.core.cnature</nature>
+ <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+ <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+ <nature>org.eclipse.cdt.core.ccnature</nature>
+ </natures>
+ <linkedResources>
+ <link>
+ <name>board</name>
+ <type>2</type>
+ <locationURI>CHIBIOS/os/hal/boards/ATSAMA5D2_XULT</locationURI>
+ </link>
+ <link>
+ <name>fatfs</name>
+ <type>2</type>
+ <locationURI>CHIBIOS/ext/fatfs</locationURI>
+ </link>
+ <link>
+ <name>lwip</name>
+ <type>2</type>
+ <locationURI>CHIBIOS/ext/lwip</locationURI>
+ </link>
+ <link>
+ <name>os</name>
+ <type>2</type>
+ <locationURI>CHIBIOS/os</locationURI>
+ </link>
+ </linkedResources>
+</projectDescription>
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/Makefile b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/Makefile
new file mode 100755
index 000000000..10808aed7
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/Makefile
@@ -0,0 +1,257 @@
+##############################################################################
+# Build global options
+# NOTE: Can be overridden externally.
+#
+
+# Compiler options here.
+ifeq ($(USE_OPT),)
+ USE_OPT = -O0 -ggdb -fomit-frame-pointer -falign-functions=16
+endif
+
+# C specific options here (added to USE_OPT).
+ifeq ($(USE_COPT),)
+ USE_COPT =
+endif
+
+# C++ specific options here (added to USE_OPT).
+ifeq ($(USE_CPPOPT),)
+ USE_CPPOPT = -fno-rtti
+endif
+
+# Enable this if you want the linker to remove unused code and data
+ifeq ($(USE_LINK_GC),)
+ USE_LINK_GC = yes
+endif
+
+# Linker extra options here.
+ifeq ($(USE_LDOPT),)
+ USE_LDOPT =
+endif
+
+# Enable this if you want link time optimizations (LTO)
+ifeq ($(USE_LTO),)
+ USE_LTO = yes
+endif
+
+# If enabled, this option allows to compile the application in THUMB mode.
+ifeq ($(USE_THUMB),)
+ USE_THUMB = no
+endif
+
+# Enable this if you want to see the full log while compiling.
+ifeq ($(USE_VERBOSE_COMPILE),)
+ USE_VERBOSE_COMPILE = no
+endif
+
+# If enabled, this option makes the build process faster by not compiling
+# modules not used in the current configuration.
+ifeq ($(USE_SMART_BUILD),)
+ USE_SMART_BUILD = yes
+endif
+
+#
+# Build global options
+##############################################################################
+
+##############################################################################
+# Architecture or project specific options
+#
+
+# Stack size to be allocated to the ARM System/User stack. This
+# stack is the stack used by the main() thread.
+ifeq ($(USE_SYSTEM_STACKSIZE),)
+ USE_SYSTEM_STACKSIZE = 0x400
+endif
+
+# Stack size to the allocated to the ARM IRQ stack. This
+# stack is used for processing interrupts and exceptions.
+ifeq ($(USE_EXCEPTIONS_STACKSIZE),)
+ USE_IRQ_STACKSIZE = 0x400
+endif
+
+# Stack size to the allocated to the ARM FIQ stack. This
+# stack is used for processing interrupts and exceptions.
+ifeq ($(USE_FIQ_STACKSIZE),)
+ USE_FIQ_STACKSIZE = 64
+endif
+
+# Stack size to the allocated to the ARM Supervisor stack. This
+# stack is used for processing interrupts and exceptions.
+ifeq ($(USE_SUPERVISOR_STACKSIZE),)
+ USE_SUPERVISOR_STACKSIZE = 8
+endif
+
+# Stack size to the allocated to the ARM Undefined stack. This
+# stack is used for processing interrupts and exceptions.
+ifeq ($(USE_UND_STACKSIZE),)
+ USE_UND_STACKSIZE = 8
+endif
+
+# Stack size to the allocated to the ARM Abort stack. This
+# stack is used for processing interrupts and exceptions.
+ifeq ($(USE_ABT_STACKSIZE),)
+ USE_ABT_STACKSIZE = 8
+endif
+
+# Enables the use of FPU.
+ifeq ($(USE_FPU),)
+ USE_FPU = no
+endif
+
+#
+# Architecture or project specific options
+##############################################################################
+
+##############################################################################
+# Project, sources and paths
+#
+
+# Define project name here
+PROJECT = ch
+CONFDIR := ./cfg
+
+# Imported source files and paths
+CHIBIOS = ../../..
+# Startup files.
+include $(CHIBIOS)/os/common/startup/ARMCAx-TZ/compilers/GCC/mk/startup_sama5d2.mk
+# HAL-OSAL files (optional).
+include $(CHIBIOS)/os/hal/hal.mk
+include $(CHIBIOS)/os/hal/ports/SAMA/SAMA5D2x/platform.mk
+include $(CHIBIOS)/os/hal/boards/ATSAMA5D2_XULT/board.mk
+include $(CHIBIOS)/os/hal/osal/rt/osal.mk
+# RTOS files (optional).
+include $(CHIBIOS)/os/rt/rt.mk
+include $(CHIBIOS)/os/common/ports/ARMCAx-TZ/compilers/GCC/mk/port_generic.mk
+# Other files (optional).
+#include $(CHIBIOS)/test/lib/test.mk
+#include $(CHIBIOS)/test/rt/rt_test.mk
+#include $(CHIBIOS)/test/oslib/oslib_test.mk
+include $(CHIBIOS)/os/hal/lib/streams/streams.mk
+include cfg/lwip.mk
+
+# Define linker script file here
+LDSCRIPT= $(STARTUPLD)/SAMA5D2ddr.ld
+
+# C sources that can be compiled in ARM or THUMB mode depending on the global
+# setting.
+CSRC = $(STARTUPSRC) \
+ $(KERNSRC) \
+ $(PORTSRC) \
+ $(OSALSRC) \
+ $(HALSRC) \
+ $(PLATFORMSRC) \
+ $(BOARDSRC) \
+ $(STREAMSSRC) \
+ $(LWSRC) \
+ $(CHIBIOS)/os/various/evtimer.c \
+ $(CHIBIOS)/os/various/syscalls.c \
+ web/web.c lwipthread.c main.c
+
+# C++ sources that can be compiled in ARM or THUMB mode depending on the global
+# setting.
+CPPSRC =
+
+# C sources to be compiled in ARM mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+# option that results in lower performance and larger code size.
+ACSRC =
+
+# C++ sources to be compiled in ARM mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+# option that results in lower performance and larger code size.
+ACPPSRC =
+
+# C sources to be compiled in THUMB mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+# option that results in lower performance and larger code size.
+TCSRC =
+
+# C sources to be compiled in THUMB mode regardless of the global setting.
+# NOTE: Mixing ARM and THUMB mode enables the -mthumb-interwork compiler
+# option that results in lower performance and larger code size.
+TCPPSRC =
+
+# List ASM source files here
+ASMSRC =
+ASMXSRC = $(STARTUPASM) $(PORTASM) $(OSALASM)
+
+INCDIR = $(CHIBIOS)/os/license \
+ $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \
+ $(HALINC) $(PLATFORMINC) $(BOARDINC) \
+ $(STREAMSINC) $(LWINC) \
+ $(CHIBIOS)/os/various $(CONFDIR)
+
+#
+# Project, sources and paths
+##############################################################################
+
+##############################################################################
+# Compiler settings
+#
+
+MCU = cortex-a5
+
+#TRGT = arm-elf-
+TRGT = arm-none-eabi-
+CC = $(TRGT)gcc
+CPPC = $(TRGT)g++
+# Enable loading with g++ only if you need C++ runtime support.
+# NOTE: You can use C++ even without C++ support if you are careful. C++
+# runtime support makes code size explode.
+LD = $(TRGT)gcc
+#LD = $(TRGT)g++
+CP = $(TRGT)objcopy
+AS = $(TRGT)gcc -x assembler-with-cpp
+AR = $(TRGT)ar
+OD = $(TRGT)objdump
+SZ = $(TRGT)size
+HEX = $(CP) -O ihex
+BIN = $(CP) -O binary
+
+# ARM-specific options here
+AOPT =
+
+# THUMB-specific options here
+TOPT = -mthumb -DTHUMB
+
+# Define C warning options here
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
+
+# Define C++ warning options here
+CPPWARN = -Wall -Wextra -Wundef
+
+#
+# Compiler settings
+##############################################################################
+
+##############################################################################
+# Start of user section
+#
+
+# List all user C define here, like -D_DEBUG=1
+UDEFS =
+
+# Define ASM defines here
+UADEFS =
+
+# List all user directories here
+UINCDIR =
+
+# List the user directory to look for the libraries here
+ULIBDIR =
+
+# List all user libraries here
+ULIBS =
+
+#
+# End of user defines
+##############################################################################
+
+RULESPATH = $(CHIBIOS)/os/common/startup/ARMCAx-TZ/compilers/GCC
+include $(RULESPATH)/rules.mk
+
+##############################################################################
+# MISRA check rule, requires PCLint and the setup files, not provided.
+#
+misra:
+ @lint-nt -v -w3 $(DEFS) pclint/co-gcc.lnt pclint/au-misra3.lnt pclint/waivers.lnt $(IINCDIR) $(CSRC) &> misra.txt
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/chconf.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/chconf.h
new file mode 100644
index 000000000..8093b6f33
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/chconf.h
@@ -0,0 +1,615 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file templates/chconf.h
+ * @brief Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ * contains the application specific kernel settings.
+ *
+ * @addtogroup config
+ * @details Kernel related settings and hooks.
+ * @{
+ */
+
+#ifndef CHCONF_H
+#define CHCONF_H
+
+#define _CHIBIOS_RT_CONF_
+#define _CHIBIOS_RT_CONF_VER_5_0_
+
+/*===========================================================================*/
+/**
+ * @name System timers settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief System time counter resolution.
+ * @note Allowed values are 16 or 32 bits.
+ */
+#define CH_CFG_ST_RESOLUTION 32
+
+/**
+ * @brief System tick frequency.
+ * @details Frequency of the system timer that drives the system ticks. This
+ * setting also defines the system tick time unit.
+ */
+#define CH_CFG_ST_FREQUENCY 1000
+
+/**
+ * @brief Time intervals data size.
+ * @note Allowed values are 16, 32 or 64 bits.
+ */
+#define CH_CFG_INTERVALS_SIZE 32
+
+/**
+ * @brief Time types data size.
+ * @note Allowed values are 16 or 32 bits.
+ */
+#define CH_CFG_TIME_TYPES_SIZE 32
+
+/**
+ * @brief Time delta constant for the tick-less mode.
+ * @note If this value is zero then the system uses the classic
+ * periodic tick. This value represents the minimum number
+ * of ticks that is safe to specify in a timeout directive.
+ * The value one is not valid, timeouts are rounded up to
+ * this value.
+ */
+#define CH_CFG_ST_TIMEDELTA 0
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel parameters and options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Round robin interval.
+ * @details This constant is the number of system ticks allowed for the
+ * threads before preemption occurs. Setting this value to zero
+ * disables the preemption for threads with equal priority and the
+ * round robin becomes cooperative. Note that higher priority
+ * threads can still preempt, the kernel is always preemptive.
+ * @note Disabling the round robin preemption makes the kernel more compact
+ * and generally faster.
+ * @note The round robin preemption is not supported in tickless mode and
+ * must be set to zero in that case.
+ */
+#define CH_CFG_TIME_QUANTUM 0
+
+/**
+ * @brief Managed RAM size.
+ * @details Size of the RAM area to be managed by the OS. If set to zero
+ * then the whole available RAM is used. The core memory is made
+ * available to the heap allocator and/or can be used directly through
+ * the simplified core memory allocator.
+ *
+ * @note In order to let the OS manage the whole RAM the linker script must
+ * provide the @p __heap_base__ and @p __heap_end__ symbols.
+ * @note Requires @p CH_CFG_USE_MEMCORE.
+ */
+#define CH_CFG_MEMCORE_SIZE 0
+
+/**
+ * @brief Idle thread automatic spawn suppression.
+ * @details When this option is activated the function @p chSysInit()
+ * does not spawn the idle thread. The application @p main()
+ * function becomes the idle thread and must implement an
+ * infinite loop.
+ */
+#define CH_CFG_NO_IDLE_THREAD FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Performance options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief OS optimization.
+ * @details If enabled then time efficient rather than space efficient code
+ * is used when two possible implementations exist.
+ *
+ * @note This is not related to the compiler optimization options.
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_OPTIMIZE_SPEED TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Subsystem options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Time Measurement APIs.
+ * @details If enabled then the time measurement APIs are included in
+ * the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_TM FALSE
+
+/**
+ * @brief Threads registry APIs.
+ * @details If enabled then the registry APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_REGISTRY TRUE
+
+/**
+ * @brief Threads synchronization APIs.
+ * @details If enabled then the @p chThdWait() function is included in
+ * the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_WAITEXIT TRUE
+
+/**
+ * @brief Semaphores APIs.
+ * @details If enabled then the Semaphores APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_SEMAPHORES TRUE
+
+/**
+ * @brief Semaphores queuing mode.
+ * @details If enabled then the threads are enqueued on semaphores by
+ * priority rather than in FIFO order.
+ *
+ * @note The default is @p FALSE. Enable this if you have special
+ * requirements.
+ * @note Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_SEMAPHORES_PRIORITY FALSE
+
+/**
+ * @brief Mutexes APIs.
+ * @details If enabled then the mutexes APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_MUTEXES TRUE
+
+/**
+ * @brief Enables recursive behavior on mutexes.
+ * @note Recursive mutexes are heavier and have an increased
+ * memory footprint.
+ *
+ * @note The default is @p FALSE.
+ * @note Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_MUTEXES_RECURSIVE FALSE
+
+/**
+ * @brief Conditional Variables APIs.
+ * @details If enabled then the conditional variables APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ * @note Requires @p CH_CFG_USE_MUTEXES.
+ */
+#define CH_CFG_USE_CONDVARS TRUE
+
+/**
+ * @brief Conditional Variables APIs with timeout.
+ * @details If enabled then the conditional variables APIs with timeout
+ * specification are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ * @note Requires @p CH_CFG_USE_CONDVARS.
+ */
+#define CH_CFG_USE_CONDVARS_TIMEOUT TRUE
+
+/**
+ * @brief Events Flags APIs.
+ * @details If enabled then the event flags APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_EVENTS TRUE
+
+/**
+ * @brief Events Flags APIs with timeout.
+ * @details If enabled then the events APIs with timeout specification
+ * are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ * @note Requires @p CH_CFG_USE_EVENTS.
+ */
+#define CH_CFG_USE_EVENTS_TIMEOUT TRUE
+
+/**
+ * @brief Synchronous Messages APIs.
+ * @details If enabled then the synchronous messages APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_MESSAGES TRUE
+
+/**
+ * @brief Synchronous Messages queuing mode.
+ * @details If enabled then messages are served by priority rather than in
+ * FIFO order.
+ *
+ * @note The default is @p FALSE. Enable this if you have special
+ * requirements.
+ * @note Requires @p CH_CFG_USE_MESSAGES.
+ */
+#define CH_CFG_USE_MESSAGES_PRIORITY FALSE
+
+/**
+ * @brief Mailboxes APIs.
+ * @details If enabled then the asynchronous messages (mailboxes) APIs are
+ * included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ * @note Requires @p CH_CFG_USE_SEMAPHORES.
+ */
+#define CH_CFG_USE_MAILBOXES TRUE
+
+/**
+ * @brief Core Memory Manager APIs.
+ * @details If enabled then the core memory manager APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMCORE TRUE
+
+/**
+ * @brief Heap Allocator APIs.
+ * @details If enabled then the memory heap allocator APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ * @note Requires @p CH_CFG_USE_MEMCORE and either @p CH_CFG_USE_MUTEXES or
+ * @p CH_CFG_USE_SEMAPHORES.
+ * @note Mutexes are recommended.
+ */
+#define CH_CFG_USE_HEAP TRUE
+
+/**
+ * @brief Memory Pools Allocator APIs.
+ * @details If enabled then the memory pools allocator APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_MEMPOOLS TRUE
+
+/**
+ * @brief Objects FIFOs APIs.
+ * @details If enabled then the objects FIFOs APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#define CH_CFG_USE_OBJ_FIFOS TRUE
+
+/**
+ * @brief Dynamic Threads APIs.
+ * @details If enabled then the dynamic threads creation APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ * @note Requires @p CH_CFG_USE_WAITEXIT.
+ * @note Requires @p CH_CFG_USE_HEAP and/or @p CH_CFG_USE_MEMPOOLS.
+ */
+#define CH_CFG_USE_DYNAMIC TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Objects factory options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Objects Factory APIs.
+ * @details If enabled then the objects factory APIs are included in the
+ * kernel.
+ *
+ * @note The default is @p FALSE.
+ */
+#define CH_CFG_USE_FACTORY TRUE
+
+/**
+ * @brief Maximum length for object names.
+ * @details If the specified length is zero then the name is stored by
+ * pointer but this could have unintended side effects.
+ */
+#define CH_CFG_FACTORY_MAX_NAMES_LENGTH 8
+
+/**
+ * @brief Enables the registry of generic objects.
+ */
+#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
+
+/**
+ * @brief Enables factory for generic buffers.
+ */
+#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
+
+/**
+ * @brief Enables factory for semaphores.
+ */
+#define CH_CFG_FACTORY_SEMAPHORES TRUE
+
+/**
+ * @brief Enables factory for mailboxes.
+ */
+#define CH_CFG_FACTORY_MAILBOXES TRUE
+
+/**
+ * @brief Enables factory for objects FIFOs.
+ */
+#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Debug options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Debug option, kernel statistics.
+ *
+ * @note The default is @p FALSE.
+ */
+#define CH_DBG_STATISTICS FALSE
+
+/**
+ * @brief Debug option, system state check.
+ * @details If enabled the correct call protocol for system APIs is checked
+ * at runtime.
+ *
+ * @note The default is @p FALSE.
+ */
+#define CH_DBG_SYSTEM_STATE_CHECK TRUE
+
+/**
+ * @brief Debug option, parameters checks.
+ * @details If enabled then the checks on the API functions input
+ * parameters are activated.
+ *
+ * @note The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_CHECKS TRUE
+
+/**
+ * @brief Debug option, consistency checks.
+ * @details If enabled then all the assertions in the kernel code are
+ * activated. This includes consistency checks inside the kernel,
+ * runtime anomalies and port-defined checks.
+ *
+ * @note The default is @p FALSE.
+ */
+#define CH_DBG_ENABLE_ASSERTS TRUE
+
+/**
+ * @brief Debug option, trace buffer.
+ * @details If enabled then the trace buffer is activated.
+ *
+ * @note The default is @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_MASK CH_DBG_TRACE_MASK_DISABLED
+
+/**
+ * @brief Trace buffer entries.
+ * @note The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
+ * different from @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#define CH_DBG_TRACE_BUFFER_SIZE 128
+
+/**
+ * @brief Debug option, stack checks.
+ * @details If enabled then a runtime stack check is performed.
+ *
+ * @note The default is @p FALSE.
+ * @note The stack check is performed in a architecture/port dependent way.
+ * It may not be implemented or some ports.
+ * @note The default failure mode is to halt the system with the global
+ * @p panic_msg variable set to @p NULL.
+ */
+#define CH_DBG_ENABLE_STACK_CHECK FALSE
+
+/**
+ * @brief Debug option, stacks initialization.
+ * @details If enabled then the threads working area is filled with a byte
+ * value when a thread is created. This can be useful for the
+ * runtime measurement of the used stack.
+ *
+ * @note The default is @p FALSE.
+ */
+#define CH_DBG_FILL_THREADS FALSE
+
+/**
+ * @brief Debug option, threads profiling.
+ * @details If enabled then a field is added to the @p thread_t structure that
+ * counts the system ticks occurred while executing the thread.
+ *
+ * @note The default is @p FALSE.
+ * @note This debug option is not currently compatible with the
+ * tickless mode.
+ */
+#define CH_DBG_THREADS_PROFILING FALSE
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel hooks
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief System structure extension.
+ * @details User fields added to the end of the @p ch_system_t structure.
+ */
+#define CH_CFG_SYSTEM_EXTRA_FIELDS \
+ /* Add threads custom fields here.*/
+
+/**
+ * @brief System initialization hook.
+ * @details User initialization code added to the @p chSysInit() function
+ * just before interrupts are enabled globally.
+ */
+#define CH_CFG_SYSTEM_INIT_HOOK(tp) { \
+ /* Add threads initialization code here.*/ \
+}
+
+/**
+ * @brief Threads descriptor structure extension.
+ * @details User fields added to the end of the @p thread_t structure.
+ */
+#define CH_CFG_THREAD_EXTRA_FIELDS \
+ /* Add threads custom fields here.*/
+
+/**
+ * @brief Threads initialization hook.
+ * @details User initialization code added to the @p _thread_init() function.
+ *
+ * @note It is invoked from within @p _thread_init() and implicitly from all
+ * the threads creation APIs.
+ */
+#define CH_CFG_THREAD_INIT_HOOK(tp) { \
+ /* Add threads initialization code here.*/ \
+}
+
+/**
+ * @brief Threads finalization hook.
+ * @details User finalization code added to the @p chThdExit() API.
+ */
+#define CH_CFG_THREAD_EXIT_HOOK(tp) { \
+ /* Add threads finalization code here.*/ \
+}
+
+/**
+ * @brief Context switch hook.
+ * @details This hook is invoked just before switching between threads.
+ */
+#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) { \
+ /* Context switch code here.*/ \
+}
+
+/**
+ * @brief ISR enter hook.
+ */
+#define CH_CFG_IRQ_PROLOGUE_HOOK() { \
+ /* IRQ prologue code here.*/ \
+}
+
+/**
+ * @brief ISR exit hook.
+ */
+#define CH_CFG_IRQ_EPILOGUE_HOOK() { \
+ /* IRQ epilogue code here.*/ \
+}
+
+/**
+ * @brief Idle thread enter hook.
+ * @note This hook is invoked within a critical zone, no OS functions
+ * should be invoked from here.
+ * @note This macro can be used to activate a power saving mode.
+ */
+#define CH_CFG_IDLE_ENTER_HOOK() { \
+ /* Idle-enter code here.*/ \
+}
+
+/**
+ * @brief Idle thread leave hook.
+ * @note This hook is invoked within a critical zone, no OS functions
+ * should be invoked from here.
+ * @note This macro can be used to deactivate a power saving mode.
+ */
+#define CH_CFG_IDLE_LEAVE_HOOK() { \
+ /* Idle-leave code here.*/ \
+}
+
+/**
+ * @brief Idle Loop hook.
+ * @details This hook is continuously invoked by the idle thread loop.
+ */
+#define CH_CFG_IDLE_LOOP_HOOK() { \
+ /* Idle loop code here.*/ \
+}
+
+/**
+ * @brief System tick event hook.
+ * @details This hook is invoked in the system tick handler immediately
+ * after processing the virtual timers queue.
+ */
+#define CH_CFG_SYSTEM_TICK_HOOK() { \
+ /* System tick event code here.*/ \
+}
+
+/**
+ * @brief System halt hook.
+ * @details This hook is invoked in case to a system halting error before
+ * the system is halted.
+ */
+#define CH_CFG_SYSTEM_HALT_HOOK(reason) { \
+ /* System halt code here.*/ \
+}
+
+/**
+ * @brief Trace hook.
+ * @details This hook is invoked each time a new record is written in the
+ * trace buffer.
+ */
+#define CH_CFG_TRACE_HOOK(tep) { \
+ /* Trace code here.*/ \
+}
+
+/** @} */
+
+/*===========================================================================*/
+/* Port-specific settings (override port settings defaulted in chcore.h). */
+/*===========================================================================*/
+
+/**
+ * @brief Trust zone configuration.
+ * @details If enabled the kernel is configured for the secure world
+ * and can access specific devices.
+ */
+#define CH_CFG_SEC_WORLD TRUE
+
+#endif /* CHCONF_H */
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/ffconf.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/ffconf.h
new file mode 100644
index 000000000..944ffde25
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/ffconf.h
@@ -0,0 +1,272 @@
+/* CHIBIOS FIX */
+#include "ch.h"
+
+/*---------------------------------------------------------------------------/
+/ FatFs - Configuration file
+/---------------------------------------------------------------------------*/
+
+#define FFCONF_DEF 87030 /* Revision ID */
+
+/*---------------------------------------------------------------------------/
+/ Function Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_FS_READONLY 0
+/* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
+/ Read-only configuration removes writing API functions, f_write(), f_sync(),
+/ f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()
+/ and optional writing functions as well. */
+
+
+#define FF_FS_MINIMIZE 0
+/* This option defines minimization level to remove some basic API functions.
+/
+/ 0: All basic functions are enabled.
+/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename()
+/ are removed.
+/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
+/ 3: f_lseek() function is removed in addition to 2. */
+
+
+#define FF_USE_STRFUNC 0
+/* This option switches string functions, f_gets(), f_putc(), f_puts() and f_printf().
+/
+/ 0: Disable string functions.
+/ 1: Enable without LF-CRLF conversion.
+/ 2: Enable with LF-CRLF conversion. */
+
+
+#define FF_USE_FIND 0
+/* This option switches filtered directory read functions, f_findfirst() and
+/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
+
+
+#define FF_USE_MKFS 0
+/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_FASTSEEK 0
+/* This option switches fast seek function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_EXPAND 0
+/* This option switches f_expand function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_CHMOD 0
+/* This option switches attribute manipulation functions, f_chmod() and f_utime().
+/ (0:Disable or 1:Enable) Also FF_FS_READONLY needs to be 0 to enable this option. */
+
+
+#define FF_USE_LABEL 0
+/* This option switches volume label functions, f_getlabel() and f_setlabel().
+/ (0:Disable or 1:Enable) */
+
+
+#define FF_USE_FORWARD 0
+/* This option switches f_forward() function. (0:Disable or 1:Enable) */
+
+
+/*---------------------------------------------------------------------------/
+/ Locale and Namespace Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_CODE_PAGE 850
+/* This option specifies the OEM code page to be used on the target system.
+/ Incorrect code page setting can cause a file open failure.
+/
+/ 437 - U.S.
+/ 720 - Arabic
+/ 737 - Greek
+/ 771 - KBL
+/ 775 - Baltic
+/ 850 - Latin 1
+/ 852 - Latin 2
+/ 855 - Cyrillic
+/ 857 - Turkish
+/ 860 - Portuguese
+/ 861 - Icelandic
+/ 862 - Hebrew
+/ 863 - Canadian French
+/ 864 - Arabic
+/ 865 - Nordic
+/ 866 - Russian
+/ 869 - Greek 2
+/ 932 - Japanese (DBCS)
+/ 936 - Simplified Chinese (DBCS)
+/ 949 - Korean (DBCS)
+/ 950 - Traditional Chinese (DBCS)
+/ 0 - Include all code pages above and configured by f_setcp()
+*/
+
+
+#define FF_USE_LFN 3
+#define FF_MAX_LFN 255
+/* The FF_USE_LFN switches the support for LFN (long file name).
+/
+/ 0: Disable LFN. FF_MAX_LFN has no effect.
+/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
+/ 2: Enable LFN with dynamic working buffer on the STACK.
+/ 3: Enable LFN with dynamic working buffer on the HEAP.
+/
+/ To enable the LFN, Unicode handling functions (option/unicode.c) must be added
+/ to the project. The working buffer occupies (FF_MAX_LFN + 1) * 2 bytes and
+/ additional 608 bytes at exFAT enabled. FF_MAX_LFN can be in range from 12 to 255.
+/ It should be set 255 to support full featured LFN operations.
+/ When use stack for the working buffer, take care on stack overflow. When use heap
+/ memory for the working buffer, memory management functions, ff_memalloc() and
+/ ff_memfree(), must be added to the project. */
+
+
+#define FF_LFN_UNICODE 0
+/* This option switches character encoding on the API, 0:ANSI/OEM or 1:UTF-16,
+/ when LFN is enabled. Also behavior of string I/O functions will be affected by
+/ this option. When LFN is not enabled, this option has no effect.
+*/
+
+
+#define FF_STRF_ENCODE 3
+/* When FF_LFN_UNICODE = 1 with LFN enabled, string I/O functions, f_gets(),
+/ f_putc(), f_puts and f_printf() convert the character encoding in it.
+/ This option selects assumption of character encoding ON THE FILE to be
+/ read/written via those functions.
+/
+/ 0: ANSI/OEM
+/ 1: UTF-16LE
+/ 2: UTF-16BE
+/ 3: UTF-8
+*/
+
+
+#define FF_FS_RPATH 0
+/* This option configures support for relative path.
+/
+/ 0: Disable relative path and remove related functions.
+/ 1: Enable relative path. f_chdir() and f_chdrive() are available.
+/ 2: f_getcwd() function is available in addition to 1.
+*/
+
+
+/*---------------------------------------------------------------------------/
+/ Drive/Volume Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_VOLUMES 1
+/* Number of volumes (logical drives) to be used. (1-10) */
+
+
+#define FF_STR_VOLUME_ID 0
+#define FF_VOLUME_STRS "RAM","NAND","CF","SD","SD2","USB","USB2","USB3"
+/* FF_STR_VOLUME_ID switches string support for volume ID.
+/ When FF_STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive
+/ number in the path name. FF_VOLUME_STRS defines the drive ID strings for each
+/ logical drives. Number of items must be equal to FF_VOLUMES. Valid characters for
+/ the drive ID strings are: A-Z and 0-9. */
+
+
+#define FF_MULTI_PARTITION 0
+/* This option switches support for multiple volumes on the physical drive.
+/ By default (0), each logical drive number is bound to the same physical drive
+/ number and only an FAT volume found on the physical drive will be mounted.
+/ When this function is enabled (1), each logical drive number can be bound to
+/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk()
+/ funciton will be available. */
+
+
+#define FF_MIN_SS 512
+#define FF_MAX_SS 512
+/* This set of options configures the range of sector size to be supported. (512,
+/ 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and
+/ harddisk. But a larger value may be required for on-board flash memory and some
+/ type of optical media. When FF_MAX_SS is larger than FF_MIN_SS, FatFs is configured
+/ for variable sector size mode and disk_ioctl() function needs to implement
+/ GET_SECTOR_SIZE command. */
+
+
+#define FF_USE_TRIM 0
+/* This option switches support for ATA-TRIM. (0:Disable or 1:Enable)
+/ To enable Trim function, also CTRL_TRIM command should be implemented to the
+/ disk_ioctl() function. */
+
+
+#define FF_FS_NOFSINFO 0
+/* If you need to know correct free space on the FAT32 volume, set bit 0 of this
+/ option, and f_getfree() function at first time after volume mount will force
+/ a full FAT scan. Bit 1 controls the use of last allocated cluster number.
+/
+/ bit0=0: Use free cluster count in the FSINFO if available.
+/ bit0=1: Do not trust free cluster count in the FSINFO.
+/ bit1=0: Use last allocated cluster number in the FSINFO if available.
+/ bit1=1: Do not trust last allocated cluster number in the FSINFO.
+*/
+
+
+
+/*---------------------------------------------------------------------------/
+/ System Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_FS_TINY 0
+/* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
+/ At the tiny configuration, size of file object (FIL) is shrinked FF_MAX_SS bytes.
+/ Instead of private sector buffer eliminated from the file object, common sector
+/ buffer in the filesystem object (FATFS) is used for the file data transfer. */
+
+
+#define FF_FS_EXFAT 1
+/* This option switches support for exFAT filesystem. (0:Disable or 1:Enable)
+/ When enable exFAT, also LFN needs to be enabled.
+/ Note that enabling exFAT discards ANSI C (C89) compatibility. */
+
+
+#define FF_FS_NORTC 1
+#define FF_NORTC_MON 5
+#define FF_NORTC_MDAY 1
+#define FF_NORTC_YEAR 2017
+/* The option FF_FS_NORTC switches timestamp functiton. If the system does not have
+/ any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable
+/ the timestamp function. All objects modified by FatFs will have a fixed timestamp
+/ defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time.
+/ To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be
+/ added to the project to read current time form real-time clock. FF_NORTC_MON,
+/ FF_NORTC_MDAY and FF_NORTC_YEAR have no effect.
+/ These options have no effect at read-only configuration (FF_FS_READONLY = 1). */
+
+
+#define FF_FS_LOCK 0
+/* The option FF_FS_LOCK switches file lock function to control duplicated file open
+/ and illegal operation to open objects. This option must be 0 when FF_FS_READONLY
+/ is 1.
+/
+/ 0: Disable file lock function. To avoid volume corruption, application program
+/ should avoid illegal open, remove and rename to the open objects.
+/ >0: Enable file lock function. The value defines how many files/sub-directories
+/ can be opened simultaneously under file lock control. Note that the file
+/ lock control is independent of re-entrancy. */
+
+
+#define FF_FS_REENTRANT 0
+#define FF_FS_TIMEOUT MS2ST(1000)
+#define FF_SYNC_t semaphore_t*
+/* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs
+/ module itself. Note that regardless of this option, file access to different
+/ volume is always re-entrant and volume control functions, f_mount(), f_mkfs()
+/ and f_fdisk() function, are always not re-entrant. Only file/directory access
+/ to the same volume is under control of this function.
+/
+/ 0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect.
+/ 1: Enable re-entrancy. Also user provided synchronization handlers,
+/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
+/ function, must be added to the project. Samples are available in
+/ option/syscall.c.
+/
+/ The FF_FS_TIMEOUT defines timeout period in unit of time tick.
+/ The FF_SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
+/ SemaphoreHandle_t and etc. A header file for O/S definitions needs to be
+/ included somewhere in the scope of ff.h. */
+
+/* #include <windows.h> // O/S definitions */
+
+
+
+/*--- End of configuration options ---*/
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/halconf.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/halconf.h
new file mode 100644
index 000000000..195a5198b
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/halconf.h
@@ -0,0 +1,437 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file templates/halconf.h
+ * @brief HAL configuration header.
+ * @details HAL configuration file, this file allows to enable or disable the
+ * various device drivers from your application. You may also use
+ * this file in order to override the device drivers default settings.
+ *
+ * @addtogroup HAL_CONF
+ * @{
+ */
+
+#ifndef HALCONF_H
+#define HALCONF_H
+
+#include "mcuconf.h"
+
+/**
+ * @brief Enables the PAL subsystem.
+ */
+#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
+#define HAL_USE_PAL TRUE
+#endif
+
+/**
+ * @brief Enables the ADC subsystem.
+ */
+#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
+#define HAL_USE_ADC FALSE
+#endif
+
+/**
+ * @brief Enables the CAN subsystem.
+ */
+#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
+#define HAL_USE_CAN FALSE
+#endif
+
+/**
+ * @brief Enables the cryptographic subsystem.
+ */
+#if !defined(HAL_USE_CRY) || defined(__DOXYGEN__)
+#define HAL_USE_CRY FALSE
+#endif
+
+/**
+ * @brief Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC FALSE
+#endif
+
+/**
+ * @brief Enables the EXT subsystem.
+ */
+#if !defined(HAL_USE_EXT) || defined(__DOXYGEN__)
+#define HAL_USE_EXT FALSE
+#endif
+
+/**
+ * @brief Enables the GPT subsystem.
+ */
+#if !defined(HAL_USE_GPT) || defined(__DOXYGEN__)
+#define HAL_USE_GPT FALSE
+#endif
+
+/**
+ * @brief Enables the I2C subsystem.
+ */
+#if !defined(HAL_USE_I2C) || defined(__DOXYGEN__)
+#define HAL_USE_I2C FALSE
+#endif
+
+/**
+ * @brief Enables the I2S subsystem.
+ */
+#if !defined(HAL_USE_I2S) || defined(__DOXYGEN__)
+#define HAL_USE_I2S FALSE
+#endif
+
+/**
+ * @brief Enables the ICU subsystem.
+ */
+#if !defined(HAL_USE_ICU) || defined(__DOXYGEN__)
+#define HAL_USE_ICU FALSE
+#endif
+
+/**
+ * @brief Enables the MAC subsystem.
+ */
+#if !defined(HAL_USE_MAC) || defined(__DOXYGEN__)
+#define HAL_USE_MAC TRUE
+#endif
+
+/**
+ * @brief Enables the MMC_SPI subsystem.
+ */
+#if !defined(HAL_USE_MMC_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_MMC_SPI FALSE
+#endif
+
+/**
+ * @brief Enables the PWM subsystem.
+ */
+#if !defined(HAL_USE_PWM) || defined(__DOXYGEN__)
+#define HAL_USE_PWM FALSE
+#endif
+
+/**
+ * @brief Enables the QSPI subsystem.
+ */
+#if !defined(HAL_USE_QSPI) || defined(__DOXYGEN__)
+#define HAL_USE_QSPI FALSE
+#endif
+
+/**
+ * @brief Enables the RTC subsystem.
+ */
+#if !defined(HAL_USE_RTC) || defined(__DOXYGEN__)
+#define HAL_USE_RTC FALSE
+#endif
+
+/**
+ * @brief Enables the SDC subsystem.
+ */
+#if !defined(HAL_USE_SDC) || defined(__DOXYGEN__)
+#define HAL_USE_SDC FALSE
+#endif
+
+/**
+ * @brief Enables the SERIAL subsystem.
+ */
+#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL TRUE
+#endif
+
+/**
+ * @brief Enables the SERIAL over USB subsystem.
+ */
+#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL_USB FALSE
+#endif
+
+/**
+ * @brief Enables the SPI subsystem.
+ */
+#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_SPI FALSE
+#endif
+
+/**
+ * @brief Enables the UART subsystem.
+ */
+#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
+#define HAL_USE_UART FALSE
+#endif
+
+/**
+ * @brief Enables the USB subsystem.
+ */
+#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
+#define HAL_USE_USB FALSE
+#endif
+
+/**
+ * @brief Enables the WDG subsystem.
+ */
+#if !defined(HAL_USE_WDG) || defined(__DOXYGEN__)
+#define HAL_USE_WDG FALSE
+#endif
+
+/*===========================================================================*/
+/* PAL driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(PAL_USE_CALLBACKS) || defined(__DOXYGEN__)
+#define PAL_USE_CALLBACKS FALSE
+#endif
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(PAL_USE_WAIT) || defined(__DOXYGEN__)
+#define PAL_USE_WAIT FALSE
+#endif
+
+/*===========================================================================*/
+/* ADC driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__)
+#define ADC_USE_WAIT TRUE
+#endif
+
+/**
+ * @brief Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define ADC_USE_MUTUAL_EXCLUSION TRUE
+#endif
+
+/*===========================================================================*/
+/* CAN driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Sleep mode related APIs inclusion switch.
+ */
+#if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__)
+#define CAN_USE_SLEEP_MODE TRUE
+#endif
+
+/*===========================================================================*/
+/* CRY driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables the SW fall-back of the cryptographic driver.
+ * @details When enabled, this option, activates a fall-back software
+ * implementation for algorithms not supported by the underlying
+ * hardware.
+ * @note Fall-back implementations may not be present for all algorithms.
+ */
+#if !defined(HAL_CRY_USE_FALLBACK) || defined(__DOXYGEN__)
+#define HAL_CRY_USE_FALLBACK FALSE
+#endif
+
+/**
+ * @brief Makes the driver forcibly use the fall-back implementations.
+ */
+#if !defined(HAL_CRY_ENFORCE_FALLBACK) || defined(__DOXYGEN__)
+#define HAL_CRY_ENFORCE_FALLBACK FALSE
+#endif
+
+/*===========================================================================*/
+/* I2C driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables the mutual exclusion APIs on the I2C bus.
+ */
+#if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define I2C_USE_MUTUAL_EXCLUSION TRUE
+#endif
+
+/*===========================================================================*/
+/* MAC driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables an event sources for incoming packets.
+ */
+#if !defined(MAC_USE_ZERO_COPY) || defined(__DOXYGEN__)
+#define MAC_USE_ZERO_COPY FALSE
+#endif
+
+/**
+ * @brief Enables an event sources for incoming packets.
+ */
+#if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__)
+#define MAC_USE_EVENTS TRUE
+#endif
+
+/*===========================================================================*/
+/* MMC_SPI driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Delays insertions.
+ * @details If enabled this options inserts delays into the MMC waiting
+ * routines releasing some extra CPU time for the threads with
+ * lower priority, this may slow down the driver a bit however.
+ * This option is recommended also if the SPI driver does not
+ * use a DMA channel and heavily loads the CPU.
+ */
+#if !defined(MMC_NICE_WAITING) || defined(__DOXYGEN__)
+#define MMC_NICE_WAITING TRUE
+#endif
+
+/*===========================================================================*/
+/* SDC driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Number of initialization attempts before rejecting the card.
+ * @note Attempts are performed at 10mS intervals.
+ */
+#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__)
+#define SDC_INIT_RETRY 100
+#endif
+
+/**
+ * @brief Include support for MMC cards.
+ * @note MMC support is not yet implemented so this option must be kept
+ * at @p FALSE.
+ */
+#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__)
+#define SDC_MMC_SUPPORT FALSE
+#endif
+
+/**
+ * @brief Delays insertions.
+ * @details If enabled this options inserts delays into the MMC waiting
+ * routines releasing some extra CPU time for the threads with
+ * lower priority, this may slow down the driver a bit however.
+ */
+#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__)
+#define SDC_NICE_WAITING TRUE
+#endif
+
+/*===========================================================================*/
+/* SERIAL driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Default bit rate.
+ * @details Configuration parameter, this is the baud rate selected for the
+ * default configuration.
+ */
+#if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__)
+#define SERIAL_DEFAULT_BITRATE 38400
+#endif
+
+/**
+ * @brief Serial buffers size.
+ * @details Configuration parameter, you can change the depth of the queue
+ * buffers depending on the requirements of your application.
+ * @note The default is 16 bytes for both the transmission and receive
+ * buffers.
+ */
+#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_BUFFERS_SIZE 16
+#endif
+
+/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @brief Serial over USB buffers size.
+ * @details Configuration parameter, the buffer size must be a multiple of
+ * the USB data endpoint maximum packet size.
+ * @note The default is 256 bytes for both the transmission and receive
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/**
+ * @brief Serial over USB number of buffers.
+ * @note The default is 2 buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_NUMBER) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_NUMBER 2
+#endif
+
+/*===========================================================================*/
+/* SPI driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)
+#define SPI_USE_WAIT TRUE
+#endif
+
+/**
+ * @brief Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define SPI_USE_MUTUAL_EXCLUSION TRUE
+#endif
+
+/*===========================================================================*/
+/* UART driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(UART_USE_WAIT) || defined(__DOXYGEN__)
+#define UART_USE_WAIT FALSE
+#endif
+
+/**
+ * @brief Enables the @p uartAcquireBus() and @p uartReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(UART_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define UART_USE_MUTUAL_EXCLUSION FALSE
+#endif
+
+/*===========================================================================*/
+/* USB driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(USB_USE_WAIT) || defined(__DOXYGEN__)
+#define USB_USE_WAIT FALSE
+#endif
+
+#endif /* HALCONF_H */
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/httpd_opts.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/httpd_opts.h
new file mode 100644
index 000000000..2669745f5
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/httpd_opts.h
@@ -0,0 +1,323 @@
+/**
+ * @file
+ * HTTP server options list
+ */
+
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * This version of the file has been modified by Texas Instruments to offer
+ * simple server-side-include (SSI) and Common Gateway Interface (CGI)
+ * capability.
+ */
+
+#ifndef LWIP_HDR_APPS_HTTPD_OPTS_H
+#define LWIP_HDR_APPS_HTTPD_OPTS_H
+
+#include "lwip/opt.h"
+
+/**
+ * @defgroup httpd_opts Options
+ * @ingroup httpd
+ * @{
+ */
+
+/** Set this to 1 to support CGI (old style) */
+#if !defined LWIP_HTTPD_CGI || defined __DOXYGEN__
+#define LWIP_HTTPD_CGI 0
+#endif
+
+/** Set this to 1 to support CGI (new style) */
+#if !defined LWIP_HTTPD_CGI_SSI || defined __DOXYGEN__
+#define LWIP_HTTPD_CGI_SSI 0
+#endif
+
+/** Set this to 1 to support SSI (Server-Side-Includes) */
+#if !defined LWIP_HTTPD_SSI || defined __DOXYGEN__
+#define LWIP_HTTPD_SSI 0
+#endif
+
+/** Set this to 1 to implement an SSI tag handler callback that gets a const char*
+ * to the tag (instead of an index into a pre-registered array of known tags) */
+#if !defined LWIP_HTTPD_SSI_RAW || defined __DOXYGEN__
+#define LWIP_HTTPD_SSI_RAW 0
+#endif
+
+/** Set this to 1 to support HTTP POST */
+#if !defined LWIP_HTTPD_SUPPORT_POST || defined __DOXYGEN__
+#define LWIP_HTTPD_SUPPORT_POST 0
+#endif
+
+/* The maximum number of parameters that the CGI handler can be sent. */
+#if !defined LWIP_HTTPD_MAX_CGI_PARAMETERS || defined __DOXYGEN__
+#define LWIP_HTTPD_MAX_CGI_PARAMETERS 16
+#endif
+
+/** LWIP_HTTPD_SSI_MULTIPART==1: SSI handler function is called with 2 more
+ * arguments indicating a counter for insert string that are too long to be
+ * inserted at once: the SSI handler function must then set 'next_tag_part'
+ * which will be passed back to it in the next call. */
+#if !defined LWIP_HTTPD_SSI_MULTIPART || defined __DOXYGEN__
+#define LWIP_HTTPD_SSI_MULTIPART 0
+#endif
+
+/* The maximum length of the string comprising the tag name */
+#if !defined LWIP_HTTPD_MAX_TAG_NAME_LEN || defined __DOXYGEN__
+#define LWIP_HTTPD_MAX_TAG_NAME_LEN 8
+#endif
+
+/* The maximum length of string that can be returned to replace any given tag */
+#if !defined LWIP_HTTPD_MAX_TAG_INSERT_LEN || defined __DOXYGEN__
+#define LWIP_HTTPD_MAX_TAG_INSERT_LEN 192
+#endif
+
+#if !defined LWIP_HTTPD_POST_MANUAL_WND || defined __DOXYGEN__
+#define LWIP_HTTPD_POST_MANUAL_WND 0
+#endif
+
+/** This string is passed in the HTTP header as "Server: " */
+#if !defined HTTPD_SERVER_AGENT || defined __DOXYGEN__
+#define HTTPD_SERVER_AGENT "lwIP/" LWIP_VERSION_STRING " (http://savannah.nongnu.org/projects/lwip)"
+#endif
+
+/** Set this to 1 if you want to include code that creates HTTP headers
+ * at runtime. Default is off: HTTP headers are then created statically
+ * by the makefsdata tool. Static headers mean smaller code size, but
+ * the (readonly) fsdata will grow a bit as every file includes the HTTP
+ * header. */
+#if !defined LWIP_HTTPD_DYNAMIC_HEADERS || defined __DOXYGEN__
+#define LWIP_HTTPD_DYNAMIC_HEADERS 0
+#endif
+
+#if !defined HTTPD_DEBUG || defined __DOXYGEN__
+#define HTTPD_DEBUG LWIP_DBG_OFF
+#endif
+
+/** Set this to 1 to use a memp pool for allocating
+ * struct http_state instead of the heap.
+ */
+#if !defined HTTPD_USE_MEM_POOL || defined __DOXYGEN__
+#define HTTPD_USE_MEM_POOL 0
+#endif
+
+/** The server port for HTTPD to use */
+#if !defined HTTPD_SERVER_PORT || defined __DOXYGEN__
+#define HTTPD_SERVER_PORT 80
+#endif
+
+/** Maximum retries before the connection is aborted/closed.
+ * - number of times pcb->poll is called -> default is 4*500ms = 2s;
+ * - reset when pcb->sent is called
+ */
+#if !defined HTTPD_MAX_RETRIES || defined __DOXYGEN__
+#define HTTPD_MAX_RETRIES 4
+#endif
+
+/** The poll delay is X*500ms */
+#if !defined HTTPD_POLL_INTERVAL || defined __DOXYGEN__
+#define HTTPD_POLL_INTERVAL 4
+#endif
+
+/** Priority for tcp pcbs created by HTTPD (very low by default).
+ * Lower priorities get killed first when running out of memory.
+ */
+#if !defined HTTPD_TCP_PRIO || defined __DOXYGEN__
+#define HTTPD_TCP_PRIO TCP_PRIO_MIN
+#endif
+
+/** Set this to 1 to enable timing each file sent */
+#if !defined LWIP_HTTPD_TIMING || defined __DOXYGEN__
+#define LWIP_HTTPD_TIMING 0
+#endif
+/** Set this to 1 to enable timing each file sent */
+#if !defined HTTPD_DEBUG_TIMING || defined __DOXYGEN__
+#define HTTPD_DEBUG_TIMING LWIP_DBG_OFF
+#endif
+
+/** Set this to one to show error pages when parsing a request fails instead
+ of simply closing the connection. */
+#if !defined LWIP_HTTPD_SUPPORT_EXTSTATUS || defined __DOXYGEN__
+#define LWIP_HTTPD_SUPPORT_EXTSTATUS 0
+#endif
+
+/** Set this to 0 to drop support for HTTP/0.9 clients (to save some bytes) */
+#if !defined LWIP_HTTPD_SUPPORT_V09 || defined __DOXYGEN__
+#define LWIP_HTTPD_SUPPORT_V09 1
+#endif
+
+/** Set this to 1 to enable HTTP/1.1 persistent connections.
+ * ATTENTION: If the generated file system includes HTTP headers, these must
+ * include the "Connection: keep-alive" header (pass argument "-11" to makefsdata).
+ */
+#if !defined LWIP_HTTPD_SUPPORT_11_KEEPALIVE || defined __DOXYGEN__
+#define LWIP_HTTPD_SUPPORT_11_KEEPALIVE 0
+#endif
+
+/** Set this to 1 to support HTTP request coming in in multiple packets/pbufs */
+#if !defined LWIP_HTTPD_SUPPORT_REQUESTLIST || defined __DOXYGEN__
+#define LWIP_HTTPD_SUPPORT_REQUESTLIST 1
+#endif
+
+#if LWIP_HTTPD_SUPPORT_REQUESTLIST
+/** Number of rx pbufs to enqueue to parse an incoming request (up to the first
+ newline) */
+#if !defined LWIP_HTTPD_REQ_QUEUELEN || defined __DOXYGEN__
+#define LWIP_HTTPD_REQ_QUEUELEN 5
+#endif
+
+/** Number of (TCP payload-) bytes (in pbufs) to enqueue to parse and incoming
+ request (up to the first double-newline) */
+#if !defined LWIP_HTTPD_REQ_BUFSIZE || defined __DOXYGEN__
+#define LWIP_HTTPD_REQ_BUFSIZE LWIP_HTTPD_MAX_REQ_LENGTH
+#endif
+
+/** Defines the maximum length of a HTTP request line (up to the first CRLF,
+ copied from pbuf into this a global buffer when pbuf- or packet-queues
+ are received - otherwise the input pbuf is used directly) */
+#if !defined LWIP_HTTPD_MAX_REQ_LENGTH || defined __DOXYGEN__
+#define LWIP_HTTPD_MAX_REQ_LENGTH LWIP_MIN(1023, (LWIP_HTTPD_REQ_QUEUELEN * PBUF_POOL_BUFSIZE))
+#endif
+#endif /* LWIP_HTTPD_SUPPORT_REQUESTLIST */
+
+/** This is the size of a static buffer used when URIs end with '/'.
+ * In this buffer, the directory requested is concatenated with all the
+ * configured default file names.
+ * Set to 0 to disable checking default filenames on non-root directories.
+ */
+#if !defined LWIP_HTTPD_MAX_REQUEST_URI_LEN || defined __DOXYGEN__
+#define LWIP_HTTPD_MAX_REQUEST_URI_LEN 63
+#endif
+
+/** Maximum length of the filename to send as response to a POST request,
+ * filled in by the application when a POST is finished.
+ */
+#if !defined LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN || defined __DOXYGEN__
+#define LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN 63
+#endif
+
+/** Set this to 0 to not send the SSI tag (default is on, so the tag will
+ * be sent in the HTML page */
+#if !defined LWIP_HTTPD_SSI_INCLUDE_TAG || defined __DOXYGEN__
+#define LWIP_HTTPD_SSI_INCLUDE_TAG 1
+#endif
+
+/** Set this to 1 to call tcp_abort when tcp_close fails with memory error.
+ * This can be used to prevent consuming all memory in situations where the
+ * HTTP server has low priority compared to other communication. */
+#if !defined LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR || defined __DOXYGEN__
+#define LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR 0
+#endif
+
+/** Set this to 1 to kill the oldest connection when running out of
+ * memory for 'struct http_state' or 'struct http_ssi_state'.
+ * ATTENTION: This puts all connections on a linked list, so may be kind of slow.
+ */
+#if !defined LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED || defined __DOXYGEN__
+#define LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED 0
+#endif
+
+/** Set this to 1 to send URIs without extension without headers
+ * (who uses this at all??) */
+#if !defined LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI || defined __DOXYGEN__
+#define LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI 0
+#endif
+
+/** Default: Tags are sent from struct http_state and are therefore volatile */
+#if !defined HTTP_IS_TAG_VOLATILE || defined __DOXYGEN__
+#define HTTP_IS_TAG_VOLATILE(ptr) TCP_WRITE_FLAG_COPY
+#endif
+
+/* By default, the httpd is limited to send 2*pcb->mss to keep resource usage low
+ when http is not an important protocol in the device. */
+#if !defined HTTPD_LIMIT_SENDING_TO_2MSS || defined __DOXYGEN__
+#define HTTPD_LIMIT_SENDING_TO_2MSS 1
+#endif
+
+/* Define this to a function that returns the maximum amount of data to enqueue.
+ The function have this signature: u16_t fn(struct tcp_pcb* pcb); */
+#if !defined HTTPD_MAX_WRITE_LEN || defined __DOXYGEN__
+#if HTTPD_LIMIT_SENDING_TO_2MSS
+#define HTTPD_MAX_WRITE_LEN(pcb) (2 * tcp_mss(pcb))
+#endif
+#endif
+
+/*------------------- FS OPTIONS -------------------*/
+
+/** Set this to 1 and provide the functions:
+ * - "int fs_open_custom(struct fs_file *file, const char *name)"
+ * Called first for every opened file to allow opening files
+ * that are not included in fsdata(_custom).c
+ * - "void fs_close_custom(struct fs_file *file)"
+ * Called to free resources allocated by fs_open_custom().
+ */
+#if !defined LWIP_HTTPD_CUSTOM_FILES || defined __DOXYGEN__
+#define LWIP_HTTPD_CUSTOM_FILES 0
+#endif
+
+/** Set this to 1 to support fs_read() to dynamically read file data.
+ * Without this (default=off), only one-block files are supported,
+ * and the contents must be ready after fs_open().
+ */
+#if !defined LWIP_HTTPD_DYNAMIC_FILE_READ || defined __DOXYGEN__
+#define LWIP_HTTPD_DYNAMIC_FILE_READ 0
+#endif
+
+/** Set this to 1 to include an application state argument per file
+ * that is opened. This allows to keep a state per connection/file.
+ */
+#if !defined LWIP_HTTPD_FILE_STATE || defined __DOXYGEN__
+#define LWIP_HTTPD_FILE_STATE 0
+#endif
+
+/** HTTPD_PRECALCULATED_CHECKSUM==1: include precompiled checksums for
+ * predefined (MSS-sized) chunks of the files to prevent having to calculate
+ * the checksums at runtime. */
+#if !defined HTTPD_PRECALCULATED_CHECKSUM || defined __DOXYGEN__
+#define HTTPD_PRECALCULATED_CHECKSUM 0
+#endif
+
+/** LWIP_HTTPD_FS_ASYNC_READ==1: support asynchronous read operations
+ * (fs_read_async returns FS_READ_DELAYED and calls a callback when finished).
+ */
+#if !defined LWIP_HTTPD_FS_ASYNC_READ || defined __DOXYGEN__
+#define LWIP_HTTPD_FS_ASYNC_READ 0
+#endif
+
+/** Set this to 1 to include "fsdata_custom.c" instead of "fsdata.c" for the
+ * file system (to prevent changing the file included in CVS) */
+#if !defined HTTPD_USE_CUSTOM_FSDATA || defined __DOXYGEN__
+#define HTTPD_USE_CUSTOM_FSDATA 0
+#endif
+
+/**
+ * @}
+ */
+
+#endif /* LWIP_HDR_APPS_HTTPD_OPTS_H */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwip.mk b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwip.mk
new file mode 100644
index 000000000..18ad2ead1
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwip.mk
@@ -0,0 +1,20 @@
+# List of the required lwIP files.
+LWIPDIR = $(CHIBIOS)/ext/lwip/src
+
+# The various blocks of files are outlined in Filelists.mk.
+include $(LWIPDIR)/Filelists.mk
+
+LWBINDSRC = \
+ $(CHIBIOS)/os/various/lwip_bindings/arch/sys_arch.c
+
+
+# Add blocks of files from Filelists.mk as required for enabled options
+LWSRC = $(COREFILES) $(CORE4FILES) $(APIFILES) $(LWBINDSRC) $(NETIFFILES) $(HTTPDFILES)
+
+LWINC = \
+ $(CHIBIOS)/os/various/lwip_bindings \
+ $(LWIPDIR)/include
+
+# Shared variables
+ALLCSRC += $(LWIPSRC)
+ALLINC += $(LWIPINC)
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwipopts.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwipopts.h
new file mode 100644
index 000000000..3c4a42665
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/lwipopts.h
@@ -0,0 +1,2133 @@
+/*
+ * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Simon Goldschmidt
+ *
+ */
+#ifndef LWIP_HDR_LWIPOPTS_H__
+#define LWIP_HDR_LWIPOPTS_H__
+
+/* Fixed settings mandated by the ChibiOS integration.*/
+#include "static_lwipopts.h"
+#include <stdlib.h>
+
+/*
+ -----------------------------------------------
+ ---------- Platform specific locking ----------
+ -----------------------------------------------
+*/
+
+/**
+ * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
+ * critical regions during buffer allocation, deallocation and memory
+ * allocation and deallocation.
+ */
+#ifndef SYS_LIGHTWEIGHT_PROT
+#define SYS_LIGHTWEIGHT_PROT 1
+#endif
+
+/**
+ * NO_SYS==1: Provides VERY minimal functionality. Otherwise,
+ * use lwIP facilities.
+ */
+#ifndef NO_SYS
+#define NO_SYS 0
+#endif
+
+/**
+ * NO_SYS_NO_TIMERS==1: Drop support for sys_timeout when NO_SYS==1
+ * Mainly for compatibility to old versions.
+ */
+#ifndef NO_SYS_NO_TIMERS
+#define NO_SYS_NO_TIMERS 0
+#endif
+
+/**
+ * MEMCPY: override this if you have a faster implementation at hand than the
+ * one included in your C library
+ */
+#ifndef MEMCPY
+#define MEMCPY(dst,src,len) memcpy(dst,src,len)
+#endif
+
+/**
+ * SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a
+ * call to memcpy() if the length is known at compile time and is small.
+ */
+#ifndef SMEMCPY
+#define SMEMCPY(dst,src,len) memcpy(dst,src,len)
+#endif
+
+/*
+ ------------------------------------
+ ---------- Memory options ----------
+ ------------------------------------
+*/
+/**
+ * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library
+ * instead of the lwip internal allocator. Can save code size if you
+ * already use it.
+ */
+#ifndef MEM_LIBC_MALLOC
+#define MEM_LIBC_MALLOC 0
+#endif
+
+/**
+* MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator.
+* Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution
+* speed and usage from interrupts!
+*/
+#ifndef MEMP_MEM_MALLOC
+#define MEMP_MEM_MALLOC 0
+#endif
+
+/**
+ * MEM_ALIGNMENT: should be set to the alignment of the CPU
+ * 4 byte alignment -> #define MEM_ALIGNMENT 4
+ * 2 byte alignment -> #define MEM_ALIGNMENT 2
+ */
+#ifndef MEM_ALIGNMENT
+#define MEM_ALIGNMENT 4
+#endif
+
+/**
+ * MEM_SIZE: the size of the heap memory. If the application will send
+ * a lot of data that needs to be copied, this should be set high.
+ */
+#ifndef MEM_SIZE
+#define MEM_SIZE 1600
+#endif
+
+/**
+ * MEMP_SEPARATE_POOLS: if defined to 1, each pool is placed in its own array.
+ * This can be used to individually change the location of each pool.
+ * Default is one big array for all pools
+ */
+#ifndef MEMP_SEPARATE_POOLS
+#define MEMP_SEPARATE_POOLS 0
+#endif
+
+/**
+ * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable
+ * amount of bytes before and after each memp element in every pool and fills
+ * it with a prominent default value.
+ * MEMP_OVERFLOW_CHECK == 0 no checking
+ * MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed
+ * MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time
+ * memp_malloc() or memp_free() is called (useful but slow!)
+ */
+#ifndef MEMP_OVERFLOW_CHECK
+#define MEMP_OVERFLOW_CHECK 0
+#endif
+
+/**
+ * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make
+ * sure that there are no cycles in the linked lists.
+ */
+#ifndef MEMP_SANITY_CHECK
+#define MEMP_SANITY_CHECK 0
+#endif
+
+/**
+ * MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set
+ * of memory pools of various sizes. When mem_malloc is called, an element of
+ * the smallest pool that can provide the length needed is returned.
+ * To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled.
+ */
+#ifndef MEM_USE_POOLS
+#define MEM_USE_POOLS 0
+#endif
+
+/**
+ * MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next
+ * bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more
+ * reliable. */
+#ifndef MEM_USE_POOLS_TRY_BIGGER_POOL
+#define MEM_USE_POOLS_TRY_BIGGER_POOL 0
+#endif
+
+/**
+ * MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h
+ * that defines additional pools beyond the "standard" ones required
+ * by lwIP. If you set this to 1, you must have lwippools.h in your
+ * inlude path somewhere.
+ */
+#ifndef MEMP_USE_CUSTOM_POOLS
+#define MEMP_USE_CUSTOM_POOLS 0
+#endif
+
+/**
+ * Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from
+ * interrupt context (or another context that doesn't allow waiting for a
+ * semaphore).
+ * If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT,
+ * while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs
+ * with each loop so that mem_free can run.
+ *
+ * ATTENTION: As you can see from the above description, this leads to dis-/
+ * enabling interrupts often, which can be slow! Also, on low memory, mem_malloc
+ * can need longer.
+ *
+ * If you don't want that, at least for NO_SYS=0, you can still use the following
+ * functions to enqueue a deallocation call which then runs in the tcpip_thread
+ * context:
+ * - pbuf_free_callback(p);
+ * - mem_free_callback(m);
+ */
+#ifndef LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT
+#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0
+#endif
+
+/*
+ ------------------------------------------------
+ ---------- Internal Memory Pool Sizes ----------
+ ------------------------------------------------
+*/
+/**
+ * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
+ * If the application sends a lot of data out of ROM (or other static memory),
+ * this should be set high.
+ */
+#ifndef MEMP_NUM_PBUF
+#define MEMP_NUM_PBUF 16
+#endif
+
+/**
+ * MEMP_NUM_RAW_PCB: Number of raw connection PCBs
+ * (requires the LWIP_RAW option)
+ */
+#ifndef MEMP_NUM_RAW_PCB
+#define MEMP_NUM_RAW_PCB 4
+#endif
+
+/**
+ * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
+ * per active UDP "connection".
+ * (requires the LWIP_UDP option)
+ */
+#ifndef MEMP_NUM_UDP_PCB
+#define MEMP_NUM_UDP_PCB 4
+#endif
+
+/**
+ * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
+ * (requires the LWIP_TCP option)
+ */
+#ifndef MEMP_NUM_TCP_PCB
+#define MEMP_NUM_TCP_PCB 5
+#endif
+
+/**
+ * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
+ * (requires the LWIP_TCP option)
+ */
+#ifndef MEMP_NUM_TCP_PCB_LISTEN
+#define MEMP_NUM_TCP_PCB_LISTEN 8
+#endif
+
+/**
+ * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
+ * (requires the LWIP_TCP option)
+ */
+#ifndef MEMP_NUM_TCP_SEG
+#define MEMP_NUM_TCP_SEG 16
+#endif
+
+/**
+ * MEMP_NUM_REASSDATA: the number of IP packets simultaneously queued for
+ * reassembly (whole packets, not fragments!)
+ */
+#ifndef MEMP_NUM_REASSDATA
+#define MEMP_NUM_REASSDATA 5
+#endif
+
+/**
+ * MEMP_NUM_FRAG_PBUF: the number of IP fragments simultaneously sent
+ * (fragments, not whole packets!).
+ * This is only used with IP_FRAG_USES_STATIC_BUF==0 and
+ * LWIP_NETIF_TX_SINGLE_PBUF==0 and only has to be > 1 with DMA-enabled MACs
+ * where the packet is not yet sent when netif->output returns.
+ */
+#ifndef MEMP_NUM_FRAG_PBUF
+#define MEMP_NUM_FRAG_PBUF 15
+#endif
+
+/**
+ * MEMP_NUM_ARP_QUEUE: the number of simulateously queued outgoing
+ * packets (pbufs) that are waiting for an ARP request (to resolve
+ * their destination address) to finish.
+ * (requires the ARP_QUEUEING option)
+ */
+#ifndef MEMP_NUM_ARP_QUEUE
+#define MEMP_NUM_ARP_QUEUE 30
+#endif
+
+/**
+ * MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces
+ * can be members et the same time (one per netif - allsystems group -, plus one
+ * per netif membership).
+ * (requires the LWIP_IGMP option)
+ */
+#ifndef MEMP_NUM_IGMP_GROUP
+#define MEMP_NUM_IGMP_GROUP 8
+#endif
+
+/**
+ * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts.
+ * (requires NO_SYS==0)
+ * The default number of timeouts is calculated here for all enabled modules.
+ * The formula expects settings to be either '0' or '1'.
+ */
+#ifndef MEMP_NUM_SYS_TIMEOUT
+#define MEMP_NUM_SYS_TIMEOUT (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT)
+#endif
+
+/**
+ * MEMP_NUM_NETBUF: the number of struct netbufs.
+ * (only needed if you use the sequential API, like api_lib.c)
+ */
+#ifndef MEMP_NUM_NETBUF
+#define MEMP_NUM_NETBUF 2
+#endif
+
+/**
+ * MEMP_NUM_NETCONN: the number of struct netconns.
+ * (only needed if you use the sequential API, like api_lib.c)
+ */
+#ifndef MEMP_NUM_NETCONN
+#define MEMP_NUM_NETCONN 4
+#endif
+
+/**
+ * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
+ * for callback/timeout API communication.
+ * (only needed if you use tcpip.c)
+ */
+#ifndef MEMP_NUM_TCPIP_MSG_API
+#define MEMP_NUM_TCPIP_MSG_API 8
+#endif
+
+/**
+ * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
+ * for incoming packets.
+ * (only needed if you use tcpip.c)
+ */
+#ifndef MEMP_NUM_TCPIP_MSG_INPKT
+#define MEMP_NUM_TCPIP_MSG_INPKT 8
+#endif
+
+/**
+ * MEMP_NUM_SNMP_NODE: the number of leafs in the SNMP tree.
+ */
+#ifndef MEMP_NUM_SNMP_NODE
+#define MEMP_NUM_SNMP_NODE 50
+#endif
+
+/**
+ * MEMP_NUM_SNMP_ROOTNODE: the number of branches in the SNMP tree.
+ * Every branch has one leaf (MEMP_NUM_SNMP_NODE) at least!
+ */
+#ifndef MEMP_NUM_SNMP_ROOTNODE
+#define MEMP_NUM_SNMP_ROOTNODE 30
+#endif
+
+/**
+ * MEMP_NUM_SNMP_VARBIND: the number of concurrent requests (does not have to
+ * be changed normally) - 2 of these are used per request (1 for input,
+ * 1 for output)
+ */
+#ifndef MEMP_NUM_SNMP_VARBIND
+#define MEMP_NUM_SNMP_VARBIND 2
+#endif
+
+/**
+ * MEMP_NUM_SNMP_VALUE: the number of OID or values concurrently used
+ * (does not have to be changed normally) - 3 of these are used per request
+ * (1 for the value read and 2 for OIDs - input and output)
+ */
+#ifndef MEMP_NUM_SNMP_VALUE
+#define MEMP_NUM_SNMP_VALUE 3
+#endif
+
+/**
+ * MEMP_NUM_NETDB: the number of concurrently running lwip_addrinfo() calls
+ * (before freeing the corresponding memory using lwip_freeaddrinfo()).
+ */
+#ifndef MEMP_NUM_NETDB
+#define MEMP_NUM_NETDB 1
+#endif
+
+/**
+ * MEMP_NUM_LOCALHOSTLIST: the number of host entries in the local host list
+ * if DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1.
+ */
+#ifndef MEMP_NUM_LOCALHOSTLIST
+#define MEMP_NUM_LOCALHOSTLIST 1
+#endif
+
+/**
+ * MEMP_NUM_PPPOE_INTERFACES: the number of concurrently active PPPoE
+ * interfaces (only used with PPPOE_SUPPORT==1)
+ */
+#ifndef MEMP_NUM_PPPOE_INTERFACES
+#define MEMP_NUM_PPPOE_INTERFACES 1
+#endif
+
+/**
+ * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
+ */
+#ifndef PBUF_POOL_SIZE
+#define PBUF_POOL_SIZE 16
+#endif
+
+/*
+ ---------------------------------
+ ---------- ARP options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_ARP==1: Enable ARP functionality.
+ */
+#ifndef LWIP_ARP
+#define LWIP_ARP 1
+#endif
+
+/**
+ * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached.
+ */
+#ifndef ARP_TABLE_SIZE
+#define ARP_TABLE_SIZE 20
+#endif
+
+/**
+ * ARP_QUEUEING==1: Multiple outgoing packets are queued during hardware address
+ * resolution. By default, only the most recent packet is queued per IP address.
+ * This is sufficient for most protocols and mainly reduces TCP connection
+ * startup time. Set this to 1 if you know your application sends more than one
+ * packet in a row to an IP address that is not in the ARP cache.
+ */
+#ifndef ARP_QUEUEING
+#define ARP_QUEUEING 0
+#endif
+
+/**
+ * ETHARP_TRUST_IP_MAC==1: Incoming IP packets cause the ARP table to be
+ * updated with the source MAC and IP addresses supplied in the packet.
+ * You may want to disable this if you do not trust LAN peers to have the
+ * correct addresses, or as a limited approach to attempt to handle
+ * spoofing. If disabled, lwIP will need to make a new ARP request if
+ * the peer is not already in the ARP table, adding a little latency.
+ * The peer *is* in the ARP table if it requested our address before.
+ * Also notice that this slows down input processing of every IP packet!
+ */
+#ifndef ETHARP_TRUST_IP_MAC
+#define ETHARP_TRUST_IP_MAC 0
+#endif
+
+/**
+ * ETHARP_SUPPORT_VLAN==1: support receiving ethernet packets with VLAN header.
+ * Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check.
+ * If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted.
+ * If ETHARP_VLAN_CHECK is not defined, all traffic is accepted.
+ * Alternatively, define a function/define ETHARP_VLAN_CHECK_FN(eth_hdr, vlan)
+ * that returns 1 to accept a packet or 0 to drop a packet.
+ */
+#ifndef ETHARP_SUPPORT_VLAN
+#define ETHARP_SUPPORT_VLAN 0
+#endif
+
+/** LWIP_ETHERNET==1: enable ethernet support for PPPoE even though ARP
+ * might be disabled
+ */
+#ifndef LWIP_ETHERNET
+#define LWIP_ETHERNET (LWIP_ARP || PPPOE_SUPPORT)
+#endif
+
+/** ETH_PAD_SIZE: number of bytes added before the ethernet header to ensure
+ * alignment of payload after that header. Since the header is 14 bytes long,
+ * without this padding e.g. addresses in the IP header will not be aligned
+ * on a 32-bit boundary, so setting this to 2 can speed up 32-bit-platforms.
+ */
+#ifndef ETH_PAD_SIZE
+#define ETH_PAD_SIZE 0
+#endif
+
+/** ETHARP_SUPPORT_STATIC_ENTRIES==1: enable code to support static ARP table
+ * entries (using etharp_add_static_entry/etharp_remove_static_entry).
+ */
+#ifndef ETHARP_SUPPORT_STATIC_ENTRIES
+#define ETHARP_SUPPORT_STATIC_ENTRIES 0
+#endif
+
+
+/*
+ --------------------------------
+ ---------- IP options ----------
+ --------------------------------
+*/
+/**
+ * IP_FORWARD==1: Enables the ability to forward IP packets across network
+ * interfaces. If you are going to run lwIP on a device with only one network
+ * interface, define this to 0.
+ */
+#ifndef IP_FORWARD
+#define IP_FORWARD 0
+#endif
+
+/**
+ * IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
+ * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
+ * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
+ */
+#ifndef IP_OPTIONS_ALLOWED
+#define IP_OPTIONS_ALLOWED 1
+#endif
+
+/**
+ * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
+ * this option does not affect outgoing packet sizes, which can be controlled
+ * via IP_FRAG.
+ */
+#ifndef IP_REASSEMBLY
+#define IP_REASSEMBLY 1
+#endif
+
+/**
+ * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
+ * that this option does not affect incoming packet sizes, which can be
+ * controlled via IP_REASSEMBLY.
+ */
+#ifndef IP_FRAG
+#define IP_FRAG 1
+#endif
+
+/**
+ * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
+ * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
+ * in this time, the whole packet is discarded.
+ */
+#ifndef IP_REASS_MAXAGE
+#define IP_REASS_MAXAGE 3
+#endif
+
+/**
+ * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
+ * Since the received pbufs are enqueued, be sure to configure
+ * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
+ * packets even if the maximum amount of fragments is enqueued for reassembly!
+ */
+#ifndef IP_REASS_MAX_PBUFS
+#define IP_REASS_MAX_PBUFS 10
+#endif
+
+/**
+ * IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
+ * fragmentation. Otherwise pbufs are allocated and reference the original
+ * packet data to be fragmented (or with LWIP_NETIF_TX_SINGLE_PBUF==1,
+ * new PBUF_RAM pbufs are used for fragments).
+ * ATTENTION: IP_FRAG_USES_STATIC_BUF==1 may not be used for DMA-enabled MACs!
+ */
+#ifndef IP_FRAG_USES_STATIC_BUF
+#define IP_FRAG_USES_STATIC_BUF 0
+#endif
+
+/**
+ * IP_FRAG_MAX_MTU: Assumed max MTU on any interface for IP frag buffer
+ * (requires IP_FRAG_USES_STATIC_BUF==1)
+ */
+#if IP_FRAG_USES_STATIC_BUF && !defined(IP_FRAG_MAX_MTU)
+#define IP_FRAG_MAX_MTU 1500
+#endif
+
+/**
+ * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
+ */
+#ifndef IP_DEFAULT_TTL
+#define IP_DEFAULT_TTL 255
+#endif
+
+/**
+ * IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast
+ * filter per pcb on udp and raw send operations. To enable broadcast filter
+ * on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1.
+ */
+#ifndef IP_SOF_BROADCAST
+#define IP_SOF_BROADCAST 0
+#endif
+
+/**
+ * IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast
+ * filter on recv operations.
+ */
+#ifndef IP_SOF_BROADCAST_RECV
+#define IP_SOF_BROADCAST_RECV 0
+#endif
+
+/**
+ * IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1: allow ip_forward() to send packets back
+ * out on the netif where it was received. This should only be used for
+ * wireless networks.
+ * ATTENTION: When this is 1, make sure your netif driver correctly marks incoming
+ * link-layer-broadcast/multicast packets as such using the corresponding pbuf flags!
+ */
+#ifndef IP_FORWARD_ALLOW_TX_ON_RX_NETIF
+#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0
+#endif
+
+/**
+ * LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS==1: randomize the local port for the first
+ * local TCP/UDP pcb (default==0). This can prevent creating predictable port
+ * numbers after booting a device.
+ */
+#ifndef LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS
+#define LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS 0
+#endif
+
+/*
+ ----------------------------------
+ ---------- ICMP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_ICMP==1: Enable ICMP module inside the IP stack.
+ * Be careful, disable that make your product non-compliant to RFC1122
+ */
+#ifndef LWIP_ICMP
+#define LWIP_ICMP 1
+#endif
+
+/**
+ * ICMP_TTL: Default value for Time-To-Live used by ICMP packets.
+ */
+#ifndef ICMP_TTL
+#define ICMP_TTL (IP_DEFAULT_TTL)
+#endif
+
+/**
+ * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)
+ */
+#ifndef LWIP_BROADCAST_PING
+#define LWIP_BROADCAST_PING 0
+#endif
+
+/**
+ * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)
+ */
+#ifndef LWIP_MULTICAST_PING
+#define LWIP_MULTICAST_PING 0
+#endif
+
+/*
+ ---------------------------------
+ ---------- RAW options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
+ */
+#ifndef LWIP_RAW
+#define LWIP_RAW 0
+#endif
+
+/**
+ * LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
+ */
+#ifndef RAW_TTL
+#define RAW_TTL (IP_DEFAULT_TTL)
+#endif
+
+/*
+ ----------------------------------
+ ---------- DHCP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_DHCP==1: Enable DHCP module.
+ */
+#ifndef LWIP_DHCP
+#define LWIP_DHCP 1
+#endif
+
+/**
+ * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address.
+ */
+#ifndef DHCP_DOES_ARP_CHECK
+#define DHCP_DOES_ARP_CHECK ((LWIP_DHCP) && (LWIP_ARP))
+#endif
+
+/*
+ ------------------------------------
+ ---------- AUTOIP options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_AUTOIP==1: Enable AUTOIP module.
+ */
+#ifndef LWIP_AUTOIP
+#define LWIP_AUTOIP 0
+#endif
+
+/**
+ * LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on
+ * the same interface at the same time.
+ */
+#ifndef LWIP_DHCP_AUTOIP_COOP
+#define LWIP_DHCP_AUTOIP_COOP 0
+#endif
+
+/**
+ * LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes
+ * that should be sent before falling back on AUTOIP. This can be set
+ * as low as 1 to get an AutoIP address very quickly, but you should
+ * be prepared to handle a changing IP address when DHCP overrides
+ * AutoIP.
+ */
+#ifndef LWIP_DHCP_AUTOIP_COOP_TRIES
+#define LWIP_DHCP_AUTOIP_COOP_TRIES 9
+#endif
+
+/*
+ ----------------------------------
+ ---------- SNMP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
+ * transport.
+ */
+#ifndef LWIP_SNMP
+#define LWIP_SNMP 0
+#endif
+
+/**
+ * SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
+ * allow. At least one request buffer is required.
+ * Does not have to be changed unless external MIBs answer request asynchronously
+ */
+#ifndef SNMP_CONCURRENT_REQUESTS
+#define SNMP_CONCURRENT_REQUESTS 1
+#endif
+
+/**
+ * SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap
+ * destination is required
+ */
+#ifndef SNMP_TRAP_DESTINATIONS
+#define SNMP_TRAP_DESTINATIONS 1
+#endif
+
+/**
+ * SNMP_PRIVATE_MIB:
+ * When using a private MIB, you have to create a file 'private_mib.h' that contains
+ * a 'struct mib_array_node mib_private' which contains your MIB.
+ */
+#ifndef SNMP_PRIVATE_MIB
+#define SNMP_PRIVATE_MIB 0
+#endif
+
+/**
+ * Only allow SNMP write actions that are 'safe' (e.g. disabeling netifs is not
+ * a safe action and disabled when SNMP_SAFE_REQUESTS = 1).
+ * Unsafe requests are disabled by default!
+ */
+#ifndef SNMP_SAFE_REQUESTS
+#define SNMP_SAFE_REQUESTS 1
+#endif
+
+/**
+ * The maximum length of strings used. This affects the size of
+ * MEMP_SNMP_VALUE elements.
+ */
+#ifndef SNMP_MAX_OCTET_STRING_LEN
+#define SNMP_MAX_OCTET_STRING_LEN 127
+#endif
+
+/**
+ * The maximum depth of the SNMP tree.
+ * With private MIBs enabled, this depends on your MIB!
+ * This affects the size of MEMP_SNMP_VALUE elements.
+ */
+#ifndef SNMP_MAX_TREE_DEPTH
+#define SNMP_MAX_TREE_DEPTH 15
+#endif
+
+/**
+ * The size of the MEMP_SNMP_VALUE elements, normally calculated from
+ * SNMP_MAX_OCTET_STRING_LEN and SNMP_MAX_TREE_DEPTH.
+ */
+#ifndef SNMP_MAX_VALUE_SIZE
+#define SNMP_MAX_VALUE_SIZE LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN)+1, sizeof(s32_t)*(SNMP_MAX_TREE_DEPTH))
+#endif
+
+/*
+ ----------------------------------
+ ---------- IGMP options ----------
+ ----------------------------------
+*/
+/**
+ * LWIP_IGMP==1: Turn on IGMP module.
+ */
+#ifndef LWIP_IGMP
+#define LWIP_IGMP 0
+#endif
+
+#define LWIP_RAND() rand()
+
+/*
+ ----------------------------------
+ ---------- DNS options -----------
+ ----------------------------------
+*/
+/**
+ * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
+ * transport.
+ */
+#ifndef LWIP_DNS
+#define LWIP_DNS 1
+#endif
+
+/** DNS maximum number of entries to maintain locally. */
+#ifndef DNS_TABLE_SIZE
+#define DNS_TABLE_SIZE 4
+#endif
+
+/** DNS maximum host name length supported in the name table. */
+#ifndef DNS_MAX_NAME_LENGTH
+#define DNS_MAX_NAME_LENGTH 256
+#endif
+
+/** The maximum of DNS servers
+ * The first server can be initialized automatically by defining
+ * DNS_SERVER_ADDRESS(ipaddr), where 'ipaddr' is an 'ip_addr_t*'
+ */
+#ifndef DNS_SERVER_ADDRESS
+#define DNS_SERVER_ADDRESS(ipaddr) (((ipaddr)->addr) = 134744072)
+#endif
+
+/** The maximum of DNS servers */
+#ifndef DNS_MAX_SERVERS
+#define DNS_MAX_SERVERS 2
+#endif
+
+/** DNS do a name checking between the query and the response. */
+#ifndef DNS_DOES_NAME_CHECK
+#define DNS_DOES_NAME_CHECK 1
+#endif
+
+/** DNS message max. size. Default value is RFC compliant. */
+#ifndef DNS_MSG_SIZE
+#define DNS_MSG_SIZE 512
+#endif
+
+/** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled,
+ * you have to define
+ * #define DNS_LOCAL_HOSTLIST_INIT {{"host1", 0x123}, {"host2", 0x234}}
+ * (an array of structs name/address, where address is an u32_t in network
+ * byte order).
+ *
+ * Instead, you can also use an external function:
+ * #define DNS_LOOKUP_LOCAL_EXTERN(x) extern u32_t my_lookup_function(const char *name)
+ * that returns the IP address or INADDR_NONE if not found.
+ */
+#ifndef DNS_LOCAL_HOSTLIST
+#define DNS_LOCAL_HOSTLIST 0
+#endif /* DNS_LOCAL_HOSTLIST */
+
+/** If this is turned on, the local host-list can be dynamically changed
+ * at runtime. */
+#ifndef DNS_LOCAL_HOSTLIST_IS_DYNAMIC
+#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0
+#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
+
+/*
+ ---------------------------------
+ ---------- UDP options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_UDP==1: Turn on UDP.
+ */
+#ifndef LWIP_UDP
+#define LWIP_UDP 1
+#endif
+
+/**
+ * LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP)
+ */
+#ifndef LWIP_UDPLITE
+#define LWIP_UDPLITE 0
+#endif
+
+/**
+ * UDP_TTL: Default Time-To-Live value.
+ */
+#ifndef UDP_TTL
+#define UDP_TTL (IP_DEFAULT_TTL)
+#endif
+
+/**
+ * LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf.
+ */
+#ifndef LWIP_NETBUF_RECVINFO
+#define LWIP_NETBUF_RECVINFO 0
+#endif
+
+/*
+ ---------------------------------
+ ---------- TCP options ----------
+ ---------------------------------
+*/
+/**
+ * LWIP_TCP==1: Turn on TCP.
+ */
+#ifndef LWIP_TCP
+#define LWIP_TCP 1
+#endif
+
+/**
+ * TCP_TTL: Default Time-To-Live value.
+ */
+#ifndef TCP_TTL
+#define TCP_TTL (IP_DEFAULT_TTL)
+#endif
+
+/**
+ * TCP_WND: The size of a TCP window. This must be at least
+ * (2 * TCP_MSS) for things to work well
+ */
+#ifndef TCP_WND
+#define TCP_WND (4 * TCP_MSS)
+#endif
+
+/**
+ * TCP_MAXRTX: Maximum number of retransmissions of data segments.
+ */
+#ifndef TCP_MAXRTX
+#define TCP_MAXRTX 12
+#endif
+
+/**
+ * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments.
+ */
+#ifndef TCP_SYNMAXRTX
+#define TCP_SYNMAXRTX 6
+#endif
+
+/**
+ * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order.
+ * Define to 0 if your device is low on memory.
+ */
+#ifndef TCP_QUEUE_OOSEQ
+#define TCP_QUEUE_OOSEQ (LWIP_TCP)
+#endif
+
+/**
+ * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default,
+ * you might want to increase this.)
+ * For the receive side, this MSS is advertised to the remote side
+ * when opening a connection. For the transmit size, this MSS sets
+ * an upper limit on the MSS advertised by the remote host.
+ */
+#ifndef TCP_MSS
+#define TCP_MSS 536
+#endif
+
+/**
+ * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really
+ * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which
+ * reflects the available reassembly buffer size at the remote host) and the
+ * largest size permitted by the IP layer" (RFC 1122)
+ * Setting this to 1 enables code that checks TCP_MSS against the MTU of the
+ * netif used for a connection and limits the MSS if it would be too big otherwise.
+ */
+#ifndef TCP_CALCULATE_EFF_SEND_MSS
+#define TCP_CALCULATE_EFF_SEND_MSS 1
+#endif
+
+
+/**
+ * TCP_SND_BUF: TCP sender buffer space (bytes).
+ * To achieve good performance, this should be at least 2 * TCP_MSS.
+ */
+#ifndef TCP_SND_BUF
+#define TCP_SND_BUF (2 * TCP_MSS)
+#endif
+
+/**
+ * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
+ * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.
+ */
+#ifndef TCP_SND_QUEUELEN
+#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
+#endif
+
+/**
+ * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than
+ * TCP_SND_BUF. It is the amount of space which must be available in the
+ * TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT).
+ */
+#ifndef TCP_SNDLOWAT
+#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1)
+#endif
+
+/**
+ * TCP_SNDQUEUELOWAT: TCP writable bufs (pbuf count). This must be less
+ * than TCP_SND_QUEUELEN. If the number of pbufs queued on a pcb drops below
+ * this number, select returns writable (combined with TCP_SNDLOWAT).
+ */
+#ifndef TCP_SNDQUEUELOWAT
+#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5)
+#endif
+
+/**
+ * TCP_OOSEQ_MAX_BYTES: The maximum number of bytes queued on ooseq per pcb.
+ * Default is 0 (no limit). Only valid for TCP_QUEUE_OOSEQ==0.
+ */
+#ifndef TCP_OOSEQ_MAX_BYTES
+#define TCP_OOSEQ_MAX_BYTES 0
+#endif
+
+/**
+ * TCP_OOSEQ_MAX_PBUFS: The maximum number of pbufs queued on ooseq per pcb.
+ * Default is 0 (no limit). Only valid for TCP_QUEUE_OOSEQ==0.
+ */
+#ifndef TCP_OOSEQ_MAX_PBUFS
+#define TCP_OOSEQ_MAX_PBUFS 0
+#endif
+
+/**
+ * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb.
+ */
+#ifndef TCP_LISTEN_BACKLOG
+#define TCP_LISTEN_BACKLOG 0
+#endif
+
+/**
+ * The maximum allowed backlog for TCP listen netconns.
+ * This backlog is used unless another is explicitly specified.
+ * 0xff is the maximum (u8_t).
+ */
+#ifndef TCP_DEFAULT_LISTEN_BACKLOG
+#define TCP_DEFAULT_LISTEN_BACKLOG 0xff
+#endif
+
+/**
+ * TCP_OVERSIZE: The maximum number of bytes that tcp_write may
+ * allocate ahead of time in an attempt to create shorter pbuf chains
+ * for transmission. The meaningful range is 0 to TCP_MSS. Some
+ * suggested values are:
+ *
+ * 0: Disable oversized allocation. Each tcp_write() allocates a new
+ pbuf (old behaviour).
+ * 1: Allocate size-aligned pbufs with minimal excess. Use this if your
+ * scatter-gather DMA requires aligned fragments.
+ * 128: Limit the pbuf/memory overhead to 20%.
+ * TCP_MSS: Try to create unfragmented TCP packets.
+ * TCP_MSS/4: Try to create 4 fragments or less per TCP packet.
+ */
+#ifndef TCP_OVERSIZE
+#define TCP_OVERSIZE TCP_MSS
+#endif
+
+/**
+ * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option.
+ */
+#ifndef LWIP_TCP_TIMESTAMPS
+#define LWIP_TCP_TIMESTAMPS 0
+#endif
+
+/**
+ * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an
+ * explicit window update
+ */
+#ifndef TCP_WND_UPDATE_THRESHOLD
+#define TCP_WND_UPDATE_THRESHOLD (TCP_WND / 4)
+#endif
+
+/**
+ * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1.
+ * LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all
+ * events (accept, sent, etc) that happen in the system.
+ * LWIP_CALLBACK_API==1: The PCB callback function is called directly
+ * for the event. This is the default.
+ */
+#if !defined(LWIP_EVENT_API) && !defined(LWIP_CALLBACK_API)
+#define LWIP_EVENT_API 0
+#define LWIP_CALLBACK_API 1
+#endif
+
+
+/*
+ ----------------------------------
+ ---------- Pbuf options ----------
+ ----------------------------------
+*/
+/**
+ * PBUF_LINK_HLEN: the number of bytes that should be allocated for a
+ * link level header. The default is 14, the standard value for
+ * Ethernet.
+ */
+#ifndef PBUF_LINK_HLEN
+#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE)
+#endif
+
+/**
+ * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is
+ * designed to accomodate single full size TCP frame in one pbuf, including
+ * TCP_MSS, IP header, and link header.
+ */
+#ifndef PBUF_POOL_BUFSIZE
+#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
+#endif
+
+/*
+ ------------------------------------------------
+ ---------- Network Interfaces options ----------
+ ------------------------------------------------
+*/
+/**
+ * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname
+ * field.
+ */
+#ifndef LWIP_NETIF_HOSTNAME
+#define LWIP_NETIF_HOSTNAME 0
+#endif
+
+/**
+ * LWIP_NETIF_API==1: Support netif api (in netifapi.c)
+ */
+#ifndef LWIP_NETIF_API
+#define LWIP_NETIF_API 0
+#endif
+
+/**
+ * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface
+ * changes its up/down status (i.e., due to DHCP IP acquistion)
+ */
+#ifndef LWIP_NETIF_STATUS_CALLBACK
+#define LWIP_NETIF_STATUS_CALLBACK 0
+#endif
+
+/**
+ * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface
+ * whenever the link changes (i.e., link down)
+ */
+#ifndef LWIP_NETIF_LINK_CALLBACK
+#define LWIP_NETIF_LINK_CALLBACK 0
+#endif
+
+/**
+ * LWIP_NETIF_REMOVE_CALLBACK==1: Support a callback function that is called
+ * when a netif has been removed
+ */
+#ifndef LWIP_NETIF_REMOVE_CALLBACK
+#define LWIP_NETIF_REMOVE_CALLBACK 0
+#endif
+
+/**
+ * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table
+ * indices) in struct netif. TCP and UDP can make use of this to prevent
+ * scanning the ARP table for every sent packet. While this is faster for big
+ * ARP tables or many concurrent connections, it might be counterproductive
+ * if you have a tiny ARP table or if there never are concurrent connections.
+ */
+#ifndef LWIP_NETIF_HWADDRHINT
+#define LWIP_NETIF_HWADDRHINT 0
+#endif
+
+/**
+ * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP
+ * address equal to the netif IP address, looping them back up the stack.
+ */
+#ifndef LWIP_NETIF_LOOPBACK
+#define LWIP_NETIF_LOOPBACK 0
+#endif
+
+/**
+ * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback
+ * sending for each netif (0 = disabled)
+ */
+#ifndef LWIP_LOOPBACK_MAX_PBUFS
+#define LWIP_LOOPBACK_MAX_PBUFS 0
+#endif
+
+/**
+ * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in
+ * the system, as netifs must change how they behave depending on this setting
+ * for the LWIP_NETIF_LOOPBACK option to work.
+ * Setting this is needed to avoid reentering non-reentrant functions like
+ * tcp_input().
+ * LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a
+ * multithreaded environment like tcpip.c. In this case, netif->input()
+ * is called directly.
+ * LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup.
+ * The packets are put on a list and netif_poll() must be called in
+ * the main application loop.
+ */
+#ifndef LWIP_NETIF_LOOPBACK_MULTITHREADING
+#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS)
+#endif
+
+/**
+ * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP tries to put all data
+ * to be sent into one single pbuf. This is for compatibility with DMA-enabled
+ * MACs that do not support scatter-gather.
+ * Beware that this might involve CPU-memcpy before transmitting that would not
+ * be needed without this flag! Use this only if you need to!
+ *
+ * @todo: TCP and IP-frag do not work with this, yet:
+ */
+#ifndef LWIP_NETIF_TX_SINGLE_PBUF
+#define LWIP_NETIF_TX_SINGLE_PBUF 0
+#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
+
+/*
+ ------------------------------------
+ ---------- LOOPIF options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c
+ */
+#ifndef LWIP_HAVE_LOOPIF
+#define LWIP_HAVE_LOOPIF 0
+#endif
+
+/*
+ ------------------------------------
+ ---------- SLIPIF options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_HAVE_SLIPIF==1: Support slip interface and slipif.c
+ */
+#ifndef LWIP_HAVE_SLIPIF
+#define LWIP_HAVE_SLIPIF 0
+#endif
+
+/*
+ ------------------------------------
+ ---------- Thread options ----------
+ ------------------------------------
+*/
+/**
+ * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.
+ */
+#ifndef TCPIP_THREAD_NAME
+#define TCPIP_THREAD_NAME "tcpip_thread"
+#endif
+
+/**
+ * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef TCPIP_THREAD_STACKSIZE
+#define TCPIP_THREAD_STACKSIZE 1024
+#endif
+
+/**
+ * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages
+ * The queue size value itself is platform-dependent, but is passed to
+ * sys_mbox_new() when tcpip_init is called.
+ */
+#ifndef TCPIP_MBOX_SIZE
+#define TCPIP_MBOX_SIZE MEMP_NUM_PBUF
+#endif
+
+/**
+ * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread.
+ */
+#ifndef SLIPIF_THREAD_NAME
+#define SLIPIF_THREAD_NAME "slipif_loop"
+#endif
+
+/**
+ * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef SLIPIF_THREAD_STACKSIZE
+#define SLIPIF_THREAD_STACKSIZE 1024
+#endif
+
+/**
+ * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef SLIPIF_THREAD_PRIO
+#define SLIPIF_THREAD_PRIO (LOWPRIO + 1)
+#endif
+
+/**
+ * PPP_THREAD_NAME: The name assigned to the pppInputThread.
+ */
+#ifndef PPP_THREAD_NAME
+#define PPP_THREAD_NAME "pppInputThread"
+#endif
+
+/**
+ * PPP_THREAD_STACKSIZE: The stack size used by the pppInputThread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef PPP_THREAD_STACKSIZE
+#define PPP_THREAD_STACKSIZE 1024
+#endif
+
+/**
+ * PPP_THREAD_PRIO: The priority assigned to the pppInputThread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef PPP_THREAD_PRIO
+#define PPP_THREAD_PRIO (LOWPRIO + 1)
+#endif
+
+/**
+ * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread.
+ */
+#ifndef DEFAULT_THREAD_NAME
+#define DEFAULT_THREAD_NAME "lwIP"
+#endif
+
+/**
+ * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread.
+ * The stack size value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef DEFAULT_THREAD_STACKSIZE
+#define DEFAULT_THREAD_STACKSIZE 4096
+#endif
+
+/**
+ * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread.
+ * The priority value itself is platform-dependent, but is passed to
+ * sys_thread_new() when the thread is created.
+ */
+#ifndef DEFAULT_THREAD_PRIO
+#define DEFAULT_THREAD_PRIO (LOWPRIO + 1)
+#endif
+
+/**
+ * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
+ * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed
+ * to sys_mbox_new() when the recvmbox is created.
+ */
+#ifndef DEFAULT_RAW_RECVMBOX_SIZE
+#define DEFAULT_RAW_RECVMBOX_SIZE 4
+#endif
+
+/**
+ * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
+ * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed
+ * to sys_mbox_new() when the recvmbox is created.
+ */
+#ifndef DEFAULT_UDP_RECVMBOX_SIZE
+#define DEFAULT_UDP_RECVMBOX_SIZE 4
+#endif
+
+/**
+ * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a
+ * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed
+ * to sys_mbox_new() when the recvmbox is created.
+ */
+#ifndef DEFAULT_TCP_RECVMBOX_SIZE
+#define DEFAULT_TCP_RECVMBOX_SIZE 40
+#endif
+
+/**
+ * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections.
+ * The queue size value itself is platform-dependent, but is passed to
+ * sys_mbox_new() when the acceptmbox is created.
+ */
+#ifndef DEFAULT_ACCEPTMBOX_SIZE
+#define DEFAULT_ACCEPTMBOX_SIZE 4
+#endif
+
+/*
+ ----------------------------------------------
+ ---------- Sequential layer options ----------
+ ----------------------------------------------
+*/
+/**
+ * LWIP_TCPIP_CORE_LOCKING: (EXPERIMENTAL!)
+ * Don't use it if you're not an active lwIP project member
+ */
+#ifndef LWIP_TCPIP_CORE_LOCKING
+#define LWIP_TCPIP_CORE_LOCKING 0
+#endif
+
+/**
+ * LWIP_TCPIP_CORE_LOCKING_INPUT: (EXPERIMENTAL!)
+ * Don't use it if you're not an active lwIP project member
+ */
+#ifndef LWIP_TCPIP_CORE_LOCKING_INPUT
+#define LWIP_TCPIP_CORE_LOCKING_INPUT 0
+#endif
+
+/**
+ * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
+ */
+#ifndef LWIP_NETCONN
+#define LWIP_NETCONN 1
+#endif
+
+/** LWIP_TCPIP_TIMEOUT==1: Enable tcpip_timeout/tcpip_untimeout tod create
+ * timers running in tcpip_thread from another thread.
+ */
+#ifndef LWIP_TCPIP_TIMEOUT
+#define LWIP_TCPIP_TIMEOUT 1
+#endif
+
+/*
+ ------------------------------------
+ ---------- Socket options ----------
+ ------------------------------------
+*/
+/**
+ * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
+ */
+#ifndef LWIP_SOCKET
+#define LWIP_SOCKET 1
+#endif
+
+/**
+ * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names.
+ * (only used if you use sockets.c)
+ */
+#ifndef LWIP_COMPAT_SOCKETS
+#define LWIP_COMPAT_SOCKETS 1
+#endif
+
+/**
+ * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names.
+ * Disable this option if you use a POSIX operating system that uses the same
+ * names (read, write & close). (only used if you use sockets.c)
+ */
+#ifndef LWIP_POSIX_SOCKETS_IO_NAMES
+#define LWIP_POSIX_SOCKETS_IO_NAMES 1
+#endif
+
+/**
+ * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT
+ * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set
+ * in seconds. (does not require sockets.c, and will affect tcp.c)
+ */
+#ifndef LWIP_TCP_KEEPALIVE
+#define LWIP_TCP_KEEPALIVE 0
+#endif
+
+/**
+ * LWIP_SO_SNDTIMEO==1: Enable send timeout for sockets/netconns and
+ * SO_SNDTIMEO processing.
+ */
+#ifndef LWIP_SO_SNDTIMEO
+#define LWIP_SO_SNDTIMEO 0
+#endif
+
+/**
+ * LWIP_SO_RCVTIMEO==1: Enable receive timeout for sockets/netconns and
+ * SO_RCVTIMEO processing.
+ */
+#ifndef LWIP_SO_RCVTIMEO
+#define LWIP_SO_RCVTIMEO 0
+#endif
+
+/**
+ * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing.
+ */
+#ifndef LWIP_SO_RCVBUF
+#define LWIP_SO_RCVBUF 0
+#endif
+
+/**
+ * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize.
+ */
+#ifndef RECV_BUFSIZE_DEFAULT
+#define RECV_BUFSIZE_DEFAULT INT_MAX
+#endif
+
+/**
+ * SO_REUSE==1: Enable SO_REUSEADDR option.
+ */
+#ifndef SO_REUSE
+#define SO_REUSE 0
+#endif
+
+/**
+ * SO_REUSE_RXTOALL==1: Pass a copy of incoming broadcast/multicast packets
+ * to all local matches if SO_REUSEADDR is turned on.
+ * WARNING: Adds a memcpy for every packet if passing to more than one pcb!
+ */
+#ifndef SO_REUSE_RXTOALL
+#define SO_REUSE_RXTOALL 0
+#endif
+
+/*
+ ----------------------------------------
+ ---------- Statistics options ----------
+ ----------------------------------------
+*/
+/**
+ * LWIP_STATS==1: Enable statistics collection in lwip_stats.
+ */
+#ifndef LWIP_STATS
+#define LWIP_STATS 1
+#endif
+
+#if LWIP_STATS
+
+/**
+ * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions.
+ */
+#ifndef LWIP_STATS_DISPLAY
+#define LWIP_STATS_DISPLAY 0
+#endif
+
+/**
+ * LINK_STATS==1: Enable link stats.
+ */
+#ifndef LINK_STATS
+#define LINK_STATS 1
+#endif
+
+/**
+ * ETHARP_STATS==1: Enable etharp stats.
+ */
+#ifndef ETHARP_STATS
+#define ETHARP_STATS (LWIP_ARP)
+#endif
+
+/**
+ * IP_STATS==1: Enable IP stats.
+ */
+#ifndef IP_STATS
+#define IP_STATS 1
+#endif
+
+/**
+ * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is
+ * on if using either frag or reass.
+ */
+#ifndef IPFRAG_STATS
+#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG)
+#endif
+
+/**
+ * ICMP_STATS==1: Enable ICMP stats.
+ */
+#ifndef ICMP_STATS
+#define ICMP_STATS 1
+#endif
+
+/**
+ * IGMP_STATS==1: Enable IGMP stats.
+ */
+#ifndef IGMP_STATS
+#define IGMP_STATS (LWIP_IGMP)
+#endif
+
+/**
+ * UDP_STATS==1: Enable UDP stats. Default is on if
+ * UDP enabled, otherwise off.
+ */
+#ifndef UDP_STATS
+#define UDP_STATS (LWIP_UDP)
+#endif
+
+/**
+ * TCP_STATS==1: Enable TCP stats. Default is on if TCP
+ * enabled, otherwise off.
+ */
+#ifndef TCP_STATS
+#define TCP_STATS (LWIP_TCP)
+#endif
+
+/**
+ * MEM_STATS==1: Enable mem.c stats.
+ */
+#ifndef MEM_STATS
+#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0))
+#endif
+
+/**
+ * MEMP_STATS==1: Enable memp.c pool stats.
+ */
+#ifndef MEMP_STATS
+#define MEMP_STATS (MEMP_MEM_MALLOC == 0)
+#endif
+
+/**
+ * SYS_STATS==1: Enable system stats (sem and mbox counts, etc).
+ */
+#ifndef SYS_STATS
+#define SYS_STATS (NO_SYS == 0)
+#endif
+
+#else
+
+#define LINK_STATS 0
+#define IP_STATS 0
+#define IPFRAG_STATS 0
+#define ICMP_STATS 0
+#define IGMP_STATS 0
+#define UDP_STATS 0
+#define TCP_STATS 0
+#define MEM_STATS 0
+#define MEMP_STATS 0
+#define SYS_STATS 0
+#define LWIP_STATS_DISPLAY 0
+
+#endif /* LWIP_STATS */
+
+/*
+ ---------------------------------
+ ---------- PPP options ----------
+ ---------------------------------
+*/
+/**
+ * PPP_SUPPORT==1: Enable PPP.
+ */
+#ifndef PPP_SUPPORT
+#define PPP_SUPPORT 0
+#endif
+
+/**
+ * PPPOE_SUPPORT==1: Enable PPP Over Ethernet
+ */
+#ifndef PPPOE_SUPPORT
+#define PPPOE_SUPPORT 0
+#endif
+
+/**
+ * PPPOS_SUPPORT==1: Enable PPP Over Serial
+ */
+#ifndef PPPOS_SUPPORT
+#define PPPOS_SUPPORT PPP_SUPPORT
+#endif
+
+#if PPP_SUPPORT
+
+/**
+ * NUM_PPP: Max PPP sessions.
+ */
+#ifndef NUM_PPP
+#define NUM_PPP 1
+#endif
+
+/**
+ * PAP_SUPPORT==1: Support PAP.
+ */
+#ifndef PAP_SUPPORT
+#define PAP_SUPPORT 0
+#endif
+
+/**
+ * CHAP_SUPPORT==1: Support CHAP.
+ */
+#ifndef CHAP_SUPPORT
+#define CHAP_SUPPORT 0
+#endif
+
+/**
+ * MSCHAP_SUPPORT==1: Support MSCHAP. CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef MSCHAP_SUPPORT
+#define MSCHAP_SUPPORT 0
+#endif
+
+/**
+ * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef CBCP_SUPPORT
+#define CBCP_SUPPORT 0
+#endif
+
+/**
+ * CCP_SUPPORT==1: Support CCP. CURRENTLY NOT SUPPORTED! DO NOT SET!
+ */
+#ifndef CCP_SUPPORT
+#define CCP_SUPPORT 0
+#endif
+
+/**
+ * VJ_SUPPORT==1: Support VJ header compression.
+ */
+#ifndef VJ_SUPPORT
+#define VJ_SUPPORT 0
+#endif
+
+/**
+ * MD5_SUPPORT==1: Support MD5 (see also CHAP).
+ */
+#ifndef MD5_SUPPORT
+#define MD5_SUPPORT 0
+#endif
+
+/*
+ * Timeouts
+ */
+#ifndef FSM_DEFTIMEOUT
+#define FSM_DEFTIMEOUT 6 /* Timeout time in seconds */
+#endif
+
+#ifndef FSM_DEFMAXTERMREQS
+#define FSM_DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */
+#endif
+
+#ifndef FSM_DEFMAXCONFREQS
+#define FSM_DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */
+#endif
+
+#ifndef FSM_DEFMAXNAKLOOPS
+#define FSM_DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */
+#endif
+
+#ifndef UPAP_DEFTIMEOUT
+#define UPAP_DEFTIMEOUT 6 /* Timeout (seconds) for retransmitting req */
+#endif
+
+#ifndef UPAP_DEFREQTIME
+#define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */
+#endif
+
+#ifndef CHAP_DEFTIMEOUT
+#define CHAP_DEFTIMEOUT 6 /* Timeout time in seconds */
+#endif
+
+#ifndef CHAP_DEFTRANSMITS
+#define CHAP_DEFTRANSMITS 10 /* max # times to send challenge */
+#endif
+
+/* Interval in seconds between keepalive echo requests, 0 to disable. */
+#ifndef LCP_ECHOINTERVAL
+#define LCP_ECHOINTERVAL 0
+#endif
+
+/* Number of unanswered echo requests before failure. */
+#ifndef LCP_MAXECHOFAILS
+#define LCP_MAXECHOFAILS 3
+#endif
+
+/* Max Xmit idle time (in jiffies) before resend flag char. */
+#ifndef PPP_MAXIDLEFLAG
+#define PPP_MAXIDLEFLAG 100
+#endif
+
+/*
+ * Packet sizes
+ *
+ * Note - lcp shouldn't be allowed to negotiate stuff outside these
+ * limits. See lcp.h in the pppd directory.
+ * (XXX - these constants should simply be shared by lcp.c instead
+ * of living in lcp.h)
+ */
+#define PPP_MTU 1500 /* Default MTU (size of Info field) */
+#ifndef PPP_MAXMTU
+/* #define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN) */
+#define PPP_MAXMTU 1500 /* Largest MTU we allow */
+#endif
+#define PPP_MINMTU 64
+#define PPP_MRU 1500 /* default MRU = max length of info field */
+#define PPP_MAXMRU 1500 /* Largest MRU we allow */
+#ifndef PPP_DEFMRU
+#define PPP_DEFMRU 296 /* Try for this */
+#endif
+#define PPP_MINMRU 128 /* No MRUs below this */
+
+#ifndef MAXNAMELEN
+#define MAXNAMELEN 256 /* max length of hostname or name for auth */
+#endif
+#ifndef MAXSECRETLEN
+#define MAXSECRETLEN 256 /* max length of password or secret */
+#endif
+
+#endif /* PPP_SUPPORT */
+
+/*
+ --------------------------------------
+ ---------- Checksum options ----------
+ --------------------------------------
+*/
+/**
+ * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.
+ */
+#ifndef CHECKSUM_GEN_IP
+#define CHECKSUM_GEN_IP 0
+#endif
+
+/**
+ * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.
+ */
+#ifndef CHECKSUM_GEN_UDP
+#define CHECKSUM_GEN_UDP 0
+#endif
+
+/**
+ * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.
+ */
+#ifndef CHECKSUM_GEN_TCP
+#define CHECKSUM_GEN_TCP 0
+#endif
+
+/**
+ * CHECKSUM_GEN_ICMP==1: Generate checksums in software for outgoing ICMP packets.
+ */
+#ifndef CHECKSUM_GEN_ICMP
+#define CHECKSUM_GEN_ICMP 1
+#endif
+
+/**
+ * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.
+ */
+#ifndef CHECKSUM_CHECK_IP
+#define CHECKSUM_CHECK_IP 0
+#endif
+
+/**
+ * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.
+ */
+#ifndef CHECKSUM_CHECK_UDP
+#define CHECKSUM_CHECK_UDP 0
+#endif
+
+/**
+ * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.
+ */
+#ifndef CHECKSUM_CHECK_TCP
+#define CHECKSUM_CHECK_TCP 0
+#endif
+
+/**
+ * LWIP_CHECKSUM_ON_COPY==1: Calculate checksum when copying data from
+ * application buffers to pbufs.
+ */
+#ifndef LWIP_CHECKSUM_ON_COPY
+#define LWIP_CHECKSUM_ON_COPY 0
+#endif
+
+/*
+ ---------------------------------------
+ ---------- Hook options ---------------
+ ---------------------------------------
+*/
+
+/* Hooks are undefined by default, define them to a function if you need them. */
+
+/**
+ * LWIP_HOOK_IP4_INPUT(pbuf, input_netif):
+ * - called from ip_input() (IPv4)
+ * - pbuf: received struct pbuf passed to ip_input()
+ * - input_netif: struct netif on which the packet has been received
+ * Return values:
+ * - 0: Hook has not consumed the packet, packet is processed as normal
+ * - != 0: Hook has consumed the packet.
+ * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook
+ * (i.e. free it when done).
+ */
+
+/**
+ * LWIP_HOOK_IP4_ROUTE(dest):
+ * - called from ip_route() (IPv4)
+ * - dest: destination IPv4 address
+ * Returns the destination netif or NULL if no destination netif is found. In
+ * that case, ip_route() continues as normal.
+ */
+
+/*
+ ---------------------------------------
+ ---------- Debugging options ----------
+ ---------------------------------------
+*/
+/**
+ * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is
+ * compared against this value. If it is smaller, then debugging
+ * messages are written.
+ */
+#ifndef LWIP_DBG_MIN_LEVEL
+#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL
+#endif
+
+/**
+ * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable
+ * debug messages of certain types.
+ */
+#ifndef LWIP_DBG_TYPES_ON
+#define LWIP_DBG_TYPES_ON LWIP_DBG_OFF
+#endif
+
+/**
+ * ETHARP_DEBUG: Enable debugging in etharp.c.
+ */
+#ifndef ETHARP_DEBUG
+#define ETHARP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * NETIF_DEBUG: Enable debugging in netif.c.
+ */
+#ifndef NETIF_DEBUG
+#define NETIF_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * PBUF_DEBUG: Enable debugging in pbuf.c.
+ */
+#ifndef PBUF_DEBUG
+#define PBUF_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * API_LIB_DEBUG: Enable debugging in api_lib.c.
+ */
+#ifndef API_LIB_DEBUG
+#define API_LIB_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * API_MSG_DEBUG: Enable debugging in api_msg.c.
+ */
+#ifndef API_MSG_DEBUG
+#define API_MSG_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SOCKETS_DEBUG: Enable debugging in sockets.c.
+ */
+#ifndef SOCKETS_DEBUG
+#define SOCKETS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * ICMP_DEBUG: Enable debugging in icmp.c.
+ */
+#ifndef ICMP_DEBUG
+#define ICMP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * IGMP_DEBUG: Enable debugging in igmp.c.
+ */
+#ifndef IGMP_DEBUG
+#define IGMP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * INET_DEBUG: Enable debugging in inet.c.
+ */
+#ifndef INET_DEBUG
+#define INET_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * IP_DEBUG: Enable debugging for IP.
+ */
+#ifndef IP_DEBUG
+#define IP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass.
+ */
+#ifndef IP_REASS_DEBUG
+#define IP_REASS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * RAW_DEBUG: Enable debugging in raw.c.
+ */
+#ifndef RAW_DEBUG
+#define RAW_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * MEM_DEBUG: Enable debugging in mem.c.
+ */
+#ifndef MEM_DEBUG
+#define MEM_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * MEMP_DEBUG: Enable debugging in memp.c.
+ */
+#ifndef MEMP_DEBUG
+#define MEMP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SYS_DEBUG: Enable debugging in sys.c.
+ */
+#ifndef SYS_DEBUG
+#define SYS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TIMERS_DEBUG: Enable debugging in timers.c.
+ */
+#ifndef TIMERS_DEBUG
+#define TIMERS_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_DEBUG: Enable debugging for TCP.
+ */
+#ifndef TCP_DEBUG
+#define TCP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug.
+ */
+#ifndef TCP_INPUT_DEBUG
+#define TCP_INPUT_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit.
+ */
+#ifndef TCP_FR_DEBUG
+#define TCP_FR_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit
+ * timeout.
+ */
+#ifndef TCP_RTO_DEBUG
+#define TCP_RTO_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_CWND_DEBUG: Enable debugging for TCP congestion window.
+ */
+#ifndef TCP_CWND_DEBUG
+#define TCP_CWND_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating.
+ */
+#ifndef TCP_WND_DEBUG
+#define TCP_WND_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions.
+ */
+#ifndef TCP_OUTPUT_DEBUG
+#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_RST_DEBUG: Enable debugging for TCP with the RST message.
+ */
+#ifndef TCP_RST_DEBUG
+#define TCP_RST_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths.
+ */
+#ifndef TCP_QLEN_DEBUG
+#define TCP_QLEN_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * UDP_DEBUG: Enable debugging in UDP.
+ */
+#ifndef UDP_DEBUG
+#define UDP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * TCPIP_DEBUG: Enable debugging in tcpip.c.
+ */
+#ifndef TCPIP_DEBUG
+#define TCPIP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * PPP_DEBUG: Enable debugging for PPP.
+ */
+#ifndef PPP_DEBUG
+#define PPP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SLIP_DEBUG: Enable debugging in slipif.c.
+ */
+#ifndef SLIP_DEBUG
+#define SLIP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * DHCP_DEBUG: Enable debugging in dhcp.c.
+ */
+#ifndef DHCP_DEBUG
+#define DHCP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * AUTOIP_DEBUG: Enable debugging in autoip.c.
+ */
+#ifndef AUTOIP_DEBUG
+#define AUTOIP_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SNMP_MSG_DEBUG: Enable debugging for SNMP messages.
+ */
+#ifndef SNMP_MSG_DEBUG
+#define SNMP_MSG_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs.
+ */
+#ifndef SNMP_MIB_DEBUG
+#define SNMP_MIB_DEBUG LWIP_DBG_OFF
+#endif
+
+/**
+ * DNS_DEBUG: Enable debugging for DNS.
+ */
+#ifndef DNS_DEBUG
+#define DNS_DEBUG LWIP_DBG_OFF
+#endif
+
+/* Use ChibiOS specific priorities. */
+#if !defined(TCPIP_THREAD_PRIO)
+#define TCPIP_THREAD_PRIO (LOWPRIO + 1)
+#endif
+#if !defined(LWIP_THREAD_PRIORITY)
+#define LWIP_THREAD_PRIORITY (LOWPRIO)
+#endif
+
+#endif /* LWIP_HDR_LWIPOPTS_H__ */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/mcuconf.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/mcuconf.h
new file mode 100755
index 000000000..2faf9952f
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/mcuconf.h
@@ -0,0 +1,144 @@
+/*
+ ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#ifndef MCUCONF_H
+#define MCUCONF_H
+
+#define SAMA5D2x_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+#define SAMA_HAL_IS_SECURE TRUE
+#define SAMA_NO_INIT TRUE
+#define SAMA_MOSCRC_ENABLED FALSE
+#define SAMA_MOSCXT_ENABLED TRUE
+#define SAMA_MOSC_SEL SAMA_MOSC_MOSCXT
+#define SAMA_OSC_SEL SAMA_OSC_OSCXT
+#define SAMA_MCK_SEL SAMA_MCK_PLLA_CLK
+#define SAMA_MCK_PRES_VALUE 1
+#define SAMA_MCK_MDIV_VALUE 3
+#define SAMA_PLLA_MUL_VALUE 83
+#define SAMA_PLLADIV2_EN TRUE
+#define SAMA_H64MX_H32MX_RATIO 2
+
+/*
+ * SPI driver system settings.
+ */
+#define SAMA_SPI_USE_SPI0 FALSE
+#define SAMA_SPI_USE_SPI1 FALSE
+#define SAMA_SPI_USE_FLEXCOM0 FALSE
+#define SAMA_SPI_USE_FLEXCOM1 FALSE
+#define SAMA_SPI_USE_FLEXCOM2 FALSE
+#define SAMA_SPI_USE_FLEXCOM3 FALSE
+#define SAMA_SPI_USE_FLEXCOM4 FALSE
+#define SAMA_SPI_SPI0_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_SPI1_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_FLEXCOM0_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_FLEXCOM1_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_FLEXCOM2_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_FLEXCOM3_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_FLEXCOM4_DMA_IRQ_PRIORITY 4
+#define SAMA_SPI_DMA_ERROR_HOOK(spip) osalSysHalt("DMA failure")
+#define SPI_SELECT_MODE SPI_SELECT_MODE_NONE
+
+/*
+ * SECUMOD driver system settings.
+ */
+#define HAL_USE_SECUMOD FALSE
+
+/*
+ * SDMMC driver system settings.
+ */
+#define HAL_USE_SDMMC FALSE
+
+/*
+ * SERIAL driver system settings.
+ */
+#define SAMA_SERIAL_USE_UART0 FALSE
+#define SAMA_SERIAL_USE_UART1 TRUE
+#define SAMA_SERIAL_USE_UART2 FALSE
+#define SAMA_SERIAL_USE_UART3 FALSE
+#define SAMA_SERIAL_USE_UART4 FALSE
+#define SAMA_SERIAL_USE_UART5 FALSE
+#define SAMA_SERIAL_USE_FLEXCOM0 FALSE
+#define SAMA_SERIAL_USE_FLEXCOM1 FALSE
+#define SAMA_SERIAL_USE_FLEXCOM2 FALSE
+#define SAMA_SERIAL_USE_FLEXCOM3 FALSE
+#define SAMA_SERIAL_USE_FLEXCOM4 FALSE
+#define SAMA_SERIAL_UART0_IRQ_PRIORITY 4
+#define SAMA_SERIAL_UART1_IRQ_PRIORITY 4
+#define SAMA_SERIAL_UART2_IRQ_PRIORITY 4
+#define SAMA_SERIAL_UART3_IRQ_PRIORITY 4
+#define SAMA_SERIAL_UART4_IRQ_PRIORITY 4
+#define SAMA_SERIAL_FLEXCOM0_IRQ_PRIORITY 4
+#define SAMA_SERIAL_FLEXCOM1_IRQ_PRIORITY 4
+#define SAMA_SERIAL_FLEXCOM2_IRQ_PRIORITY 4
+#define SAMA_SERIAL_FLEXCOM3_IRQ_PRIORITY 4
+#define SAMA_SERIAL_FLEXCOM4_IRQ_PRIORITY 4
+
+/*
+ * ST driver settings.
+ */
+#define SAMA_ST_USE_PIT FALSE
+#define SAMA_ST_USE_TC0 FALSE
+#define SAMA_ST_USE_TC1 TRUE
+
+/*
+ * TC driver system settings.
+ */
+#define HAL_USE_TC FALSE
+#define SAMA_USE_TC0 FALSE
+#define SAMA_USE_TC1 FALSE
+#define SAMA_TC0_IRQ_PRIORITY 2
+#define SAMA_TC1_IRQ_PRIORITY 2
+
+/*
+ * UART driver system settings.
+ */
+#define SAMA_UART_USE_UART0 FALSE
+#define SAMA_UART_USE_UART1 FALSE
+#define SAMA_UART_USE_UART2 FALSE
+#define SAMA_UART_USE_UART3 FALSE
+#define SAMA_UART_USE_UART4 FALSE
+#define SAMA_UART_USE_FLEXCOM0 FALSE
+#define SAMA_UART_USE_FLEXCOM1 FALSE
+#define SAMA_UART_USE_FLEXCOM2 FALSE
+#define SAMA_UART_USE_FLEXCOM3 FALSE
+#define SAMA_UART_USE_FLEXCOM4 FALSE
+#define SAMA_UART_UART0_IRQ_PRIORITY 4
+#define SAMA_UART_UART1_IRQ_PRIORITY 4
+#define SAMA_UART_UART2_IRQ_PRIORITY 4
+#define SAMA_UART_UART3_IRQ_PRIORITY 4
+#define SAMA_UART_UART4_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM0_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM1_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM2_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM3_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM4_IRQ_PRIORITY 4
+#define SAMA_UART_UART0_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_UART1_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_UART2_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_UART3_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_UART4_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM0_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM1_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM2_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM3_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_FLEXCOM4_DMA_IRQ_PRIORITY 4
+#define SAMA_UART_DMA_ERROR_HOOK(uartp) osalSysHalt("DMA failure")
+
+#endif /* MCUCONF_H */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/static_lwipopts.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/static_lwipopts.h
new file mode 100644
index 000000000..956e7176f
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/cfg/static_lwipopts.h
@@ -0,0 +1,42 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file static_lwipopts.h
+ *
+ * @addtogroup static_lwipopts
+ * @{
+ */
+
+#ifndef STATIC_LWIPOPTS_H
+#define STATIC_LWIPOPTS_H
+
+#define NO_SYS 0
+
+#define LWIP_TIMERS 1
+#define LWIP_TIMERS_CUSTOM 0
+
+#define LWIP_TCPIP_CORE_LOCKING 1
+#define LWIP_TCPIP_CORE_LOCKING_INPUT 0
+#define LWIP_COMPAT_MUTEX_ALLOWED 1
+
+#define SYS_LIGHTWEIGHT_PROT 0
+
+#define MEM_ALIGNMENT 4
+
+#endif /* STATIC_LWIPOPTS_H */
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/debug/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT (DDRAM).launch b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/debug/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT (DDRAM).launch
new file mode 100644
index 000000000..ec1446018
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/debug/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT (DDRAM).launch
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<launchConfiguration type="org.eclipse.cdt.debug.gdbjtag.launchConfigurationType">
+<stringAttribute key="bad_container_name" value="/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/debu"/>
+<intAttribute key="org.eclipse.cdt.debug.gdbjtag.core.delay" value="3"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.doHalt" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.doReset" value="false"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.imageFileName" value=""/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.imageOffset" value=""/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.initCommands" value="mon reg cpsr = 0xd3&#13;&#10;set *0xF8048000 = 0xA5000004&#13;&#10;set *0x00A00100 = 0&#13;&#10;set *0xF8048044 = 0x00008000&#13;&#10;mon cp15 1 0 0 0 = 0x00C50078&#13;&#10;set *0xF0014004 = 0x4&#13;&#10;set *0xF0014014 = 1&lt;&lt;13&#10;load ~/bootstrap.elf&#10;mon reg pc = 0x00200000&#10;continue"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.ipAddress" value="localhost"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.jtagDevice" value="Generic TCP/IP"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.loadImage" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.loadSymbols" value="true"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.pcRegister" value="27000000"/>
+<intAttribute key="org.eclipse.cdt.debug.gdbjtag.core.portNumber" value="2331"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.runCommands" value=""/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setPcRegister" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setResume" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.setStopAt" value="true"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.stopAt" value="_start"/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.symbolsFileName" value=""/>
+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.symbolsOffset" value=""/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useFileForImage" value="false"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useFileForSymbols" value="false"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useProjBinaryForImage" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useProjBinaryForSymbols" value="true"/>
+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.useRemoteTarget" value="true"/>
+<stringAttribute key="org.eclipse.cdt.debug.mi.core.DEBUG_NAME" value="arm-none-eabi-gdb"/>
+<stringAttribute key="org.eclipse.cdt.debug.mi.core.commandFactory" value="Standard"/>
+<stringAttribute key="org.eclipse.cdt.debug.mi.core.protocol" value="mi"/>
+<booleanAttribute key="org.eclipse.cdt.debug.mi.core.verboseMode" value="false"/>
+<stringAttribute key="org.eclipse.cdt.dsf.gdb.DEBUG_NAME" value="arm-none-eabi-gdb"/>
+<booleanAttribute key="org.eclipse.cdt.dsf.gdb.UPDATE_THREADLIST_ON_SUSPEND" value="false"/>
+<intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
+<stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
+<stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
+<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList&gt;&lt;content id=&quot;null-_pal_lld_setgroupmode-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;null-sama_clock_init-(format)&quot; val=&quot;4&quot;/&gt;&lt;content id=&quot;null-boardInit-(format)&quot; val=&quot;2&quot;/&gt;&lt;content id=&quot;mode-_pal_lld_setgroupmode-(format)&quot; val=&quot;4&quot;/&gt;&lt;/contentList&gt;"/>
+<stringAttribute key="org.eclipse.cdt.launch.GLOBAL_VARIABLES" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;globalVariableList/&gt;&#13;&#10;"/>
+<stringAttribute key="org.eclipse.cdt.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#13;&#10;&lt;memoryBlockExpressionList/&gt;&#13;&#10;"/>
+<stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="./build/ch.elf"/>
+<stringAttribute key="org.eclipse.cdt.launch.PROJECT_ATTR" value="RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT"/>
+<booleanAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_AUTO_ATTR" value="false"/>
+<stringAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_ID_ATTR" value=""/>
+<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
+<listEntry value="/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT"/>
+</listAttribute>
+<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
+<listEntry value="4"/>
+</listAttribute>
+<listAttribute key="org.eclipse.debug.ui.favoriteGroups">
+<listEntry value="org.eclipse.debug.ui.launchGroup.debug"/>
+</listAttribute>
+<stringAttribute key="org.eclipse.dsf.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList context=&quot;reserved-for-future-use&quot;&gt;&#10;&lt;gdbmemoryBlockExpression address=&quot;2277676&quot; label=&quot;0x22c12c&quot;/&gt;&#10;&lt;/memoryBlockExpressionList&gt;&#10;"/>
+<stringAttribute key="process_factory_id" value="org.eclipse.cdt.dsf.gdb.GdbProcessFactory"/>
+</launchConfiguration>
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.c b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.c
new file mode 100644
index 000000000..c431d0703
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.c
@@ -0,0 +1,428 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+/*
+ * **** This file incorporates work covered by the following copyright and ****
+ * **** permission notice: ****
+ *
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+
+/**
+ * @file lwipthread.c
+ * @brief LWIP wrapper thread code.
+ * @addtogroup LWIP_THREAD
+ * @{
+ */
+
+#include "lwipthread.h"
+
+#include "hal.h"
+#include "evtimer.h"
+
+#include <lwip/opt.h>
+#include <lwip/def.h>
+#include <lwip/mem.h>
+#include <lwip/pbuf.h>
+#include <lwip/sys.h>
+#include <lwip/stats.h>
+#include <lwip/snmp.h>
+#include <lwip/tcpip.h>
+#include <netif/etharp.h>
+#include <lwip/netifapi.h>
+
+#if LWIP_DHCP
+#include <lwip/dhcp.h>
+#endif
+
+#if LWIP_AUTOIP
+#include <lwip/autoip.h>
+#endif
+
+#define PERIODIC_TIMER_ID 1
+#define FRAME_RECEIVED_ID 2
+
+/*
+ * Suspension point for initialization procedure.
+ */
+thread_reference_t lwip_trp = NULL;
+
+/*
+ * Stack area for the LWIP-MAC thread.
+ */
+static THD_WORKING_AREA(wa_lwip_thread, LWIP_THREAD_STACK_SIZE);
+
+/*
+ * Initialization.
+ */
+static void low_level_init(struct netif *netif) {
+ /* set MAC hardware address length */
+ netif->hwaddr_len = ETHARP_HWADDR_LEN;
+
+ /* maximum transfer unit */
+ netif->mtu = LWIP_NETIF_MTU;
+
+ /* device capabilities */
+ /* don't set NETIF_FLAG_ETHARP if this device is not an Ethernet one */
+ netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
+
+ /* Do whatever else is needed to initialize interface. */
+}
+
+/*
+ * This function does the actual transmission of the packet. The packet is
+ * contained in the pbuf that is passed to the function. This pbuf
+ * might be chained.
+ *
+ * @param netif the lwip network interface structure for this ethernetif
+ * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type)
+ * @return ERR_OK if the packet could be sent
+ * an err_t value if the packet couldn't be sent
+ *
+ * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to
+ * strange results. You might consider waiting for space in the DMA queue
+ * to become available since the stack doesn't retry to send a packet
+ * dropped because of memory failure (except for the TCP timers).
+ */
+static err_t low_level_output(struct netif *netif, struct pbuf *p) {
+ struct pbuf *q;
+ MACTransmitDescriptor td;
+
+ (void)netif;
+ if (macWaitTransmitDescriptor(&ETHD0, &td, TIME_MS2I(LWIP_SEND_TIMEOUT)) != MSG_OK)
+ return ERR_TIMEOUT;
+
+#if ETH_PAD_SIZE
+ pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
+#endif
+
+ /* Iterates through the pbuf chain. */
+ for(q = p; q != NULL; q = q->next)
+ macWriteTransmitDescriptor(&td, (uint8_t *)q->payload, (size_t)q->len);
+ macReleaseTransmitDescriptor(&td);
+
+ MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len);
+ if (((u8_t*)p->payload)[0] & 1) {
+ /* broadcast or multicast packet*/
+ MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts);
+ }
+ else {
+ /* unicast packet */
+ MIB2_STATS_NETIF_INC(netif, ifoutucastpkts);
+ }
+ /* increase ifoutdiscards or ifouterrors on error */
+
+#if ETH_PAD_SIZE
+ pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
+#endif
+
+ LINK_STATS_INC(link.xmit);
+
+ return ERR_OK;
+}
+
+/*
+ * Receives a frame.
+ * Allocates a pbuf and transfers the bytes of the incoming
+ * packet from the interface into the pbuf.
+ *
+ * @param netif the lwip network interface structure for this ethernetif
+ * @return a pbuf filled with the received packet (including MAC header)
+ * NULL on memory error
+ */
+static bool low_level_input(struct netif *netif, struct pbuf **pbuf) {
+ MACReceiveDescriptor rd;
+ struct pbuf *q;
+ u16_t len;
+
+ (void)netif;
+
+ osalDbgAssert(pbuf != NULL, "invalid null pointer");
+
+ if (macWaitReceiveDescriptor(&ETHD0, &rd, TIME_IMMEDIATE) != MSG_OK)
+ return false;
+
+ len = (u16_t)rd.size;
+
+#if ETH_PAD_SIZE
+ len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
+#endif
+
+ /* We allocate a pbuf chain of pbufs from the pool. */
+ *pbuf = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
+
+ if (*pbuf != NULL) {
+#if ETH_PAD_SIZE
+ pbuf_header(pbuf, -ETH_PAD_SIZE); /* drop the padding word */
+#endif
+
+ /* Iterates through the pbuf chain. */
+ for(q = *pbuf; q != NULL; q = q->next)
+ macReadReceiveDescriptor(&rd, (uint8_t *)q->payload, (size_t)q->len);
+ macReleaseReceiveDescriptor(&rd);
+
+ MIB2_STATS_NETIF_ADD(netif, ifinoctets, *pbuf->tot_len);
+
+ if (*(uint8_t *)((*pbuf)->payload) & 1) {
+ /* broadcast or multicast packet*/
+ MIB2_STATS_NETIF_INC(netif, ifinnucastpkts);
+ }
+ else {
+ /* unicast packet*/
+ MIB2_STATS_NETIF_INC(netif, ifinucastpkts);
+ }
+
+#if ETH_PAD_SIZE
+ pbuf_header(pbuf, ETH_PAD_SIZE); /* reclaim the padding word */
+#endif
+
+ LINK_STATS_INC(link.recv);
+ }
+ else {
+ macReleaseReceiveDescriptor(&rd); // Drop packet
+ LINK_STATS_INC(link.memerr);
+ LINK_STATS_INC(link.drop);
+ MIB2_STATS_NETIF_INC(netif, ifindiscards);
+ }
+
+ return true;
+}
+
+/*
+ * Called at the beginning of the program to set up the
+ * network interface. It calls the function low_level_init() to do the
+ * actual setup of the hardware.
+ *
+ * This function should be passed as a parameter to netifapi_netif_add().
+ *
+ * @param netif the lwip network interface structure for this ethernetif
+ * @return ERR_OK if the loopif is initialised
+ * ERR_MEM if private data couldn't be allocated
+ * any other err_t on error
+ */
+static err_t ethernetif_init(struct netif *netif) {
+ osalDbgAssert((netif != NULL), "netif != NULL");
+
+ /*
+ * Initialize the snmp variables and counters inside the struct netif.
+ * The last argument should be replaced with your link speed, in units
+ * of bits per second.
+ */
+ MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, LWIP_LINK_SPEED);
+
+ netif->state = NULL;
+ netif->name[0] = LWIP_IFNAME0;
+ netif->name[1] = LWIP_IFNAME1;
+ /* We directly use etharp_output() here to save a function call.
+ * You can instead declare your own function an call etharp_output()
+ * from it if you have to do some checks before sending (e.g. if link
+ * is available...) */
+ netif->output = etharp_output;
+ netif->linkoutput = low_level_output;
+
+ /* initialize the hardware */
+ low_level_init(netif);
+
+ return ERR_OK;
+}
+
+/**
+ * @brief LWIP handling thread.
+ *
+ * @param[in] p pointer to a @p lwipthread_opts structure or @p NULL
+ * @return The function does not return.
+ */
+static THD_FUNCTION(lwip_thread, p) {
+ event_timer_t evt;
+ event_listener_t el0, el1;
+ ip_addr_t ip, gateway, netmask;
+ static struct netif thisif = { 0 };
+ static const MACConfig mac_config = {thisif.hwaddr};
+ net_addr_mode_t addressMode;
+ err_t result;
+
+ chRegSetThreadName(LWIP_THREAD_NAME);
+
+ /* Initializes the thing.*/
+ tcpip_init(NULL, NULL);
+
+ /* TCP/IP parameters, runtime or compile time.*/
+ if (p) {
+ struct lwipthread_opts *opts = p;
+ unsigned i;
+
+ for (i = 0; i < 6; i++)
+ thisif.hwaddr[i] = opts->macaddress[i];
+ ip.addr = opts->address;
+ gateway.addr = opts->gateway;
+ netmask.addr = opts->netmask;
+ addressMode = opts->addrMode;
+#if LWIP_NETIF_HOSTNAME
+ thisif.hostname = opts->ourHostName;
+#endif
+ }
+ else {
+ thisif.hwaddr[0] = LWIP_ETHADDR_0;
+ thisif.hwaddr[1] = LWIP_ETHADDR_1;
+ thisif.hwaddr[2] = LWIP_ETHADDR_2;
+ thisif.hwaddr[3] = LWIP_ETHADDR_3;
+ thisif.hwaddr[4] = LWIP_ETHADDR_4;
+ thisif.hwaddr[5] = LWIP_ETHADDR_5;
+ LWIP_IPADDR(&ip);
+ LWIP_GATEWAY(&gateway);
+ LWIP_NETMASK(&netmask);
+ addressMode = NET_ADDRESS_STATIC;
+#if LWIP_NETIF_HOSTNAME
+ thisif.hostname = NULL;
+#endif
+ }
+
+#if LWIP_NETIF_HOSTNAME
+ if (thisif.hostname == NULL)
+ thisif.hostname = LWIP_NETIF_HOSTNAME_STRING;
+#endif
+
+ macStart(&ETHD0, &mac_config);
+
+ /* Add interface. */
+ result = netifapi_netif_add(&thisif, &ip, &netmask, &gateway, NULL, ethernetif_init, tcpip_input);
+ if (result != ERR_OK)
+ {
+ chThdSleepMilliseconds(1000); // Give some time to print any other diagnostics.
+ osalSysHalt("netif_add error"); // Not sure what else we can do if an error occurs here.
+ };
+
+ netif_set_default(&thisif);
+
+ switch (addressMode)
+ {
+#if LWIP_AUTOIP
+ case NET_ADDRESS_AUTO:
+ autoip_start(&thisif);
+ break;
+#endif
+
+ default:
+ netif_set_up(&thisif);
+ break;
+ }
+
+ /* Setup event sources.*/
+ evtObjectInit(&evt, LWIP_LINK_POLL_INTERVAL);
+ evtStart(&evt);
+ chEvtRegisterMask(&evt.et_es, &el0, PERIODIC_TIMER_ID);
+ chEvtRegisterMask(macGetReceiveEventSource(&ETHD0), &el1, FRAME_RECEIVED_ID);
+ chEvtAddEvents(PERIODIC_TIMER_ID | FRAME_RECEIVED_ID);
+
+ /* Resumes the caller and goes to the final priority.*/
+ chThdResume(&lwip_trp, MSG_OK);
+ chThdSetPriority(LWIP_THREAD_PRIORITY);
+
+ while (true) {
+ eventmask_t mask = chEvtWaitAny(ALL_EVENTS);
+ if (mask & PERIODIC_TIMER_ID) {
+ bool current_link_status = macPollLinkStatus(&ETHD0);
+ if (current_link_status != netif_is_link_up(&thisif)) {
+ if (current_link_status) {
+ tcpip_callback_with_block((tcpip_callback_fn) netif_set_link_up,
+ &thisif, 0);
+#if LWIP_DHCP
+ if (addressMode == NET_ADDRESS_DHCP)
+ dhcp_start(&thisif);
+#endif
+ }
+ else {
+ tcpip_callback_with_block((tcpip_callback_fn) netif_set_link_down,
+ &thisif, 0);
+#if LWIP_DHCP
+ if (addressMode == NET_ADDRESS_DHCP)
+ dhcp_stop(&thisif);
+#endif
+ }
+ }
+ }
+
+ if (mask & FRAME_RECEIVED_ID) {
+ struct pbuf *p;
+ while (low_level_input(&thisif, &p)) {
+ if (p != NULL) {
+ struct eth_hdr *ethhdr = p->payload;
+ switch (htons(ethhdr->type)) {
+ /* IP or ARP packet? */
+ case ETHTYPE_IP:
+ case ETHTYPE_ARP:
+ /* full packet send to tcpip_thread to process */
+ if (thisif.input(p, &thisif) == ERR_OK)
+ break;
+ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
+ /* Falls through */
+ default:
+ pbuf_free(p);
+ }
+ }
+ }
+ }
+ }
+}
+
+/**
+ * @brief Initializes the lwIP subsystem.
+ * @note The function exits after the initialization is finished.
+ *
+ * @param[in] opts pointer to the configuration structure, if @p NULL
+ * then the static configuration is used.
+ */
+void lwipInit(const lwipthread_opts_t *opts) {
+ /* Creating the lwIP thread (it changes priority internally).*/
+ chThdCreateStatic(wa_lwip_thread, sizeof (wa_lwip_thread),
+ chThdGetPriorityX() - 1, lwip_thread, (void *)opts);
+
+ /* Waiting for the lwIP thread complete initialization. Note,
+ this thread reaches the thread reference object first because
+ the relative priorities.*/
+ chSysLock();
+ chThdSuspendS(&lwip_trp);
+ chSysUnlock();
+}
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.h
new file mode 100644
index 000000000..f4112466d
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/lwipthread.h
@@ -0,0 +1,247 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file lwipthread.h
+ * @brief LWIP wrapper thread macros and structures.
+ * @addtogroup LWIP_THREAD
+ * @{
+ */
+
+#ifndef LWIPTHREAD_H
+#define LWIPTHREAD_H
+
+#include <lwip/opt.h>
+
+/**
+ * @brief lwIP default network interface maximum transmission unit (MTU).
+ */
+#if !defined(LWIP_NETIF_MTU) || defined(__DOXYGEN__)
+#define LWIP_NETIF_MTU 1500
+#endif
+
+/**
+ * @brief Default network interface hostname.
+ */
+#if !defined(LWIP_NETIF_HOSTNAME_STRING) || defined(__DOXYGEN__)
+#define LWIP_NETIF_HOSTNAME_STRING "lwip"
+#endif
+
+/**
+ * @brief Default network interface hostname.
+ */
+#if !defined(LWIP_THREAD_NAME) || defined(__DOXYGEN__)
+#define LWIP_THREAD_NAME "lwipthread"
+#endif
+
+/**
+ * @brief lwIP thread priority.
+ */
+#ifndef LWIP_THREAD_PRIORITY
+#define LWIP_THREAD_PRIORITY LOWPRIO
+#endif
+
+/**
+ * @brief lwIP thread stack size.
+ */
+#if !defined(LWIP_THREAD_STACK_SIZE) || defined(__DOXYGEN__)
+#define LWIP_THREAD_STACK_SIZE 1400
+#endif
+
+/**
+ * @brief Link poll interval.
+ */
+#if !defined(LWIP_LINK_POLL_INTERVAL) || defined(__DOXYGEN__)
+#define LWIP_LINK_POLL_INTERVAL TIME_S2I(5)
+#endif
+
+/**
+ * @brief IP Address.
+ */
+#if !defined(LWIP_IPADDR) || defined(__DOXYGEN__)
+#define LWIP_IPADDR(p) IP4_ADDR(p, 192, 168, 21, 11)
+#endif
+
+/**
+ * @brief IP Gateway.
+ */
+#if !defined(LWIP_GATEWAY) || defined(__DOXYGEN__)
+#define LWIP_GATEWAY(p) IP4_ADDR(p, 192, 168, 21, 1)
+#endif
+
+/**
+ * @brief IP netmask.
+ */
+#if !defined(LWIP_NETMASK) || defined(__DOXYGEN__)
+#define LWIP_NETMASK(p) IP4_ADDR(p, 255, 255, 255, 0)
+#endif
+
+/**
+ * @brief Transmission timeout.
+ */
+#if !defined(LWIP_SEND_TIMEOUT) || defined(__DOXYGEN__)
+#define LWIP_SEND_TIMEOUT 100
+#endif
+
+/**
+ * @brief Link speed.
+ */
+#if !defined(LWIP_LINK_SPEED) || defined(__DOXYGEN__)
+#define LWIP_LINK_SPEED 100000000
+#endif
+
+/**
+ * @brief MAC Address byte 0.
+ */
+#if !defined(LWIP_ETHADDR_0) || defined(__DOXYGEN__)
+#define LWIP_ETHADDR_0 0x54
+#endif
+
+/**
+ * @brief MAC Address byte 1.
+ */
+#if !defined(LWIP_ETHADDR_1) || defined(__DOXYGEN__)
+#define LWIP_ETHADDR_1 0x54
+#endif
+
+/**
+ * @brief MAC Address byte 2.
+ */
+#if !defined(LWIP_ETHADDR_2) || defined(__DOXYGEN__)
+#define LWIP_ETHADDR_2 0x09
+#endif
+
+/**
+ * @brief MAC Address byte 3.
+ */
+#if !defined(LWIP_ETHADDR_3) || defined(__DOXYGEN__)
+#define LWIP_ETHADDR_3 0x34
+#endif
+
+/**
+ * @brief MAC Address byte 4.
+ */
+#if !defined(LWIP_ETHADDR_4) || defined(__DOXYGEN__)
+#define LWIP_ETHADDR_4 0x1f
+#endif
+
+/**
+ * @brief MAC Address byte 5.
+ */
+#if !defined(LWIP_ETHADDR_5) || defined(__DOXYGEN__)
+#define LWIP_ETHADDR_5 0x3a
+#endif
+
+/**
+ * @brief Interface name byte 0.
+ */
+#if !defined(LWIP_IFNAME0) || defined(__DOXYGEN__)
+#define LWIP_IFNAME0 'e'
+#endif
+
+/**
+ * @brief Interface name byte 1.
+ */
+#if !defined(LWIP_IFNAME1) || defined(__DOXYGEN__)
+#define LWIP_IFNAME1 'n'
+#endif
+
+/**
+ * @brief Utility macro to define an IPv4 address.
+ *
+ * @note Within the networking subsystem, IPv4 network addresses are
+ * stored with LS byte of network address in MS byte of unsigned int.
+ */
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define IP4_ADDR_VALUE(a,b,c,d) \
+ (((u32_t)((d) & 0xff) << 24) | \
+ ((u32_t)((c) & 0xff) << 16) | \
+ ((u32_t)((b) & 0xff) << 8) | \
+ (u32_t)((a) & 0xff))
+#else
+#define IP4_ADDR_VALUE(a,b,c,d) \
+ (((u32_t)((a) & 0xff) << 24) | \
+ ((u32_t)((b) & 0xff) << 16) | \
+ ((u32_t)((c) & 0xff) << 8) | \
+ (u32_t)((d) & 0xff))
+#endif
+
+/**
+ * @brief Startup network assigning modes.
+ */
+typedef enum {
+#if LWIP_DHCP || defined(__DOXYGEN__)
+ /**
+ * @brief Assign a DHCP given address.
+ */
+ NET_ADDRESS_DHCP = 1,
+#endif
+ /**
+ * @brief Assign a statically IPv4 address.
+ */
+ NET_ADDRESS_STATIC = 2,
+#if LWIP_AUTOIP || defined(__DOXYGEN__)
+ /**
+ * @brief Assign an IPv4 link-Local address.
+ */
+ NET_ADDRESS_AUTO = 3
+#endif
+} net_addr_mode_t;
+
+/**
+ * @brief Runtime TCP/IP settings.
+ */
+typedef struct lwipthread_opts {
+ /**
+ * @brief Pointer to MAC address as an array of 6 unsigned bytes.
+ */
+ uint8_t *macaddress;
+ /**
+ * @brief Network address as 32-bit unsigned integer.
+ */
+ uint32_t address;
+ /**
+ * @brief Network subnet mask as 32-bit unsigned integer.
+ */
+ uint32_t netmask;
+ /**
+ * @brief Network gateway as 32-bit unsigned integer.
+ */
+ uint32_t gateway;
+ /**
+ * @brief Startup network addressing mode - static, DHCP, auto.
+ */
+ net_addr_mode_t addrMode;
+ /**
+ * @brief Host name. If NULL, a default string is used.
+ * @note Not checked for validity. In particular, spaces not allowed.
+ */
+#if LWIP_NETIF_HOSTNAME || defined(__DOXYGEN__)
+ const char *ourHostName;
+#endif
+} lwipthread_opts_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void lwipInit(const lwipthread_opts_t *opts);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIPTHREAD_H */
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/main.c b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/main.c
new file mode 100644
index 000000000..aa0a8248d
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/main.c
@@ -0,0 +1,81 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+#include "lwipthread.h"
+
+#include "web/web.h"
+
+static const SerialConfig sdcfg = {
+ 115200,
+ 0,
+ UART_MR_PAR_NO
+};
+
+/*
+ * Green LED blinker thread, times are in milliseconds.
+ */
+static THD_WORKING_AREA(waThread1, 128);
+static THD_FUNCTION(Thread1, arg) {
+
+ (void)arg;
+ chRegSetThreadName("blinker");
+ while (TRUE) {
+ palClearLine(LINE_LED_BLUE);
+ chThdSleepMilliseconds(500);
+ palSetLine(LINE_LED_BLUE);
+ chThdSleepMilliseconds(500);
+ }
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+ /*
+ * System initializations.
+ * - HAL initialization, this also initializes the configured device drivers
+ * and performs the board-specific initializations.
+ * - Kernel initialization, the main() function becomes a thread and the
+ * RTOS is active.
+ */
+ halInit();
+ chSysInit();
+ lwipInit(NULL);
+
+ /*
+ * Activates the serial driver 1 using the driver defined configuration.
+ */
+ sdStart(&SD1, &sdcfg);
+
+ /*
+ * Creates the blinker thread.
+ */
+ chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+
+ /*
+ * Normal main() thread activity, in this demo it does nothing except
+ * sleeping in a loop and check the button state.
+ */
+ while (true) {
+ if(!palReadPad(PIOB, PIOB_USER_PB)) {
+ http_client();
+ }
+ chThdSleepMilliseconds(500);
+ }
+}
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/readme.txt b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/readme.txt
new file mode 100644
index 000000000..5c0a48980
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/readme.txt
@@ -0,0 +1,27 @@
+*****************************************************************************
+** ChibiOS/RT port for ARM-Cortex-A5 SAMA5D2-XPLAINED. **
+*****************************************************************************
+
+** TARGET **
+
+The demo runs on an SAMA5D2-XPLAINED board.
+
+** The Demo **
+
+The demo currently just flashes a LED using a thread and serves HTTP requests
+at address 192.168.21.11 on port 80.
+
+** Build Procedure **
+
+The demo has been tested by using the free Codesourcery GCC-based toolchain
+and YAGARTO.
+Just modify the TRGT line in the makefile in order to use different GCC ports.
+
+** Notes **
+
+Some files used by the demo are not part of ChibiOS/RT but are copyright of
+ST Microelectronics and are licensed under a different license.
+Also note that not all the files present in the ST library are distributed
+with ChibiOS/RT, you can find the whole library on the ST web site:
+
+ http://www.st.com
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.c b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.c
new file mode 100644
index 000000000..bf7d33d13
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.c
@@ -0,0 +1,119 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/*
+ * This file is a modified version of the lwIP web server demo. The original
+ * author is unknown because the file didn't contain any license information.
+ */
+
+/**
+ * @file web.c
+ * @brief HTTP client code.
+ * @{
+ */
+
+#include "ch.h"
+
+#include "lwip/netdb.h"
+#include "lwip/sockets.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "web.h"
+#include "chprintf.h"
+
+/* HTTP request */
+static const char *REQUEST = "GET "CONFIG_RESOURCE" HTTP/1.0\r\n"
+ "Host: "CONFIG_WEBSITE"\r\n"
+ "User-Agent: SAMA5D2\r\n"
+ "\r\n";
+
+static char recv_buf[100];
+
+struct addrinfo hints = {
+ .ai_family = AF_INET,
+ .ai_socktype = SOCK_STREAM,
+ };
+
+static struct addrinfo *res;
+
+/*
+ * @brief HTTP client functions.
+ */
+int http_client(void) {
+
+ /* Resolve the IP of the target website */
+ int result = getaddrinfo(CONFIG_WEBSITE, "80", &hints, &res);
+
+ if((result != 0) || (res == NULL)) {
+ chprintf((BaseSequentialStream *)&SD1, "Unable to resolve IP for target website %s\n\r", CONFIG_WEBSITE);
+ return 0;
+ }
+
+ chprintf((BaseSequentialStream *)&SD1,"Target website's IP resolved\n\r");
+
+ /* create a new socket */
+ int s = socket(AF_INET, SOCK_STREAM, 0);
+
+ if(s < 0) {
+ chprintf((BaseSequentialStream *)&SD1, "Unable to allocate a new socket\n\r");
+ return 0;
+ }
+
+ chprintf((BaseSequentialStream *)&SD1, "Socket allocated, id=%d\n\r", s);
+
+ /* connect to the specified server */
+ result = connect(s, res->ai_addr, res->ai_addrlen);
+ if(result != 0) {
+ chprintf((BaseSequentialStream *)&SD1, "Unable to connect to the target website\n\r");
+ close(s);
+ return 0;
+ }
+
+ chprintf((BaseSequentialStream *)&SD1, "Connected to the target website\n\r");
+
+ /* send the request */
+ result = write(s, REQUEST, strlen(REQUEST));
+ if(result < 0) {
+ chprintf((BaseSequentialStream *)&SD1, "Unable to send the HTTP request\r\n");
+ close(s);
+ return 0;
+ }
+ chprintf((BaseSequentialStream *)&SD1, "HTTP request sent\n\r");
+
+ /* print the response */
+ chprintf((BaseSequentialStream *)&SD1, "HTTP response:\n\r");
+ chprintf((BaseSequentialStream *)&SD1,"--------------------------------------------------------------------------------\n\r");
+ int r;
+ do {
+ memset(recv_buf, 0, sizeof(recv_buf));
+ r = read(s, recv_buf, sizeof(recv_buf) - 1);
+ for(int i = 0; i < r; i++) {
+ putchar(recv_buf[i]);
+ }
+ chprintf((BaseSequentialStream *)&SD1,"%s\n\r",recv_buf);
+ } while(r > 0);
+ chprintf((BaseSequentialStream *)&SD1, "--------------------------------------------------------------------------------\n\r");
+
+ lwip_freeaddrinfo(res);
+ close(s);
+ chprintf((BaseSequentialStream *)&SD1, "Socket closed\n\r");
+
+ return 1;
+}
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.h
new file mode 100644
index 000000000..0ffe770a0
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP-HTTP-CLIENT/web/web.h
@@ -0,0 +1,43 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file web.h
+ * @brief HTTP client.
+ * @{
+ */
+
+#ifndef WEB_H
+#define WEB_H
+
+#define CONFIG_RESOURCE "/user-agent"
+#define CONFIG_WEBSITE "httpbin.org"
+
+#define WEB_PORT 80
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int http_client(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* WEB_H */
+
+/** @} */