Merge pull request #12 from TexZK/master

Triple buffer handler

27 files changed, 4406 insertions, 2 deletions

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-DMA2D/main.c b/demos/STM32/RT-STM32F429-DISCOVERY-DMA2D/main.c
index a8f8007..d0b07d3 100644
--- a/demos/STM32/RT-STM32F429-DISCOVERY-DMA2D/main.c
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-DMA2D/main.c
@@ -474,8 +474,6 @@ static void dma2d_test(void) {
 /* Command line related.                                                     */

 /*===========================================================================*/

 

-#define     RTT2MS(ticks)   ((ticks) / (STM32_HCLK / 1000UL))

-

 #if HAL_USE_SERIAL_USB

 /* Virtual serial port over USB.*/

 SerialUSBDriver SDU1;

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.cproject b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.cproject
new file mode 100644
index 0000000..742db7a
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.cproject
@@ -0,0 +1,58 @@
+<?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="0.114656749">
+			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="0.114656749" moduleId="org.eclipse.cdt.core.settings" name="Default">
+				<externalSettings/>
+				<extensions>
+					<extension id="org.eclipse.cdt.core.VCErrorParser" 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.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
+				</extensions>
+			</storageModule>
+			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
+				<configuration artifactName="${ProjName}" buildProperties="" description="" id="0.114656749" name="Default" parent="org.eclipse.cdt.build.core.prefbase.cfg">
+					<folderInfo id="0.114656749." name="/" resourcePath="">
+						<toolChain id="org.eclipse.cdt.build.core.prefbase.toolchain.1182750861" name="No ToolChain" resourceTypeBasedDiscovery="false" superClass="org.eclipse.cdt.build.core.prefbase.toolchain">
+							<targetPlatform id="org.eclipse.cdt.build.core.prefbase.toolchain.1182750861.169007201" name=""/>
+							<builder autoBuildTarget="all" cleanBuildTarget="clean" enableAutoBuild="false" enableCleanBuild="true" enabledIncrementalBuild="true" id="org.eclipse.cdt.build.core.settings.default.builder.579570726" incrementalBuildTarget="all" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="org.eclipse.cdt.build.core.settings.default.builder"/>
+							<tool id="org.eclipse.cdt.build.core.settings.holder.libs.2143276802" name="holder for library settings" superClass="org.eclipse.cdt.build.core.settings.holder.libs"/>
+							<tool id="org.eclipse.cdt.build.core.settings.holder.1873650595" name="Assembly" superClass="org.eclipse.cdt.build.core.settings.holder">
+								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1821379090" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath"/>
+								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.1337802279" 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.1707090075" name="GNU C++" superClass="org.eclipse.cdt.build.core.settings.holder">
+								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.586544031" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath"/>
+								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.338985256" 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.1165165914" name="GNU C" superClass="org.eclipse.cdt.build.core.settings.holder">
+								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1379525985" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath"/>
+								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.714476670" 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-STM32F429-DISCOVERY-TRIBUF.null.1703860681" name="RT-STM32F429-DISCOVERY-TRIBUF"/>
+	</storageModule>
+	<storageModule moduleId="scannerConfiguration">
+		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
+		<scannerConfigBuildInfo instanceId="0.114656749">
+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>
+		</scannerConfigBuildInfo>
+	</storageModule>
+	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+	<storageModule moduleId="refreshScope" versionNumber="2">
+		<configuration configurationName="Default">
+			<resource resourceType="PROJECT" workspacePath="/RT-STM32F429-DISCOVERY-TRIBUF"/>
+		</configuration>
+	</storageModule>
+	<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
+</cproject>
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.gitignore b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.gitignore
new file mode 100644
index 0000000..0a3664e
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.gitignore
@@ -0,0 +1,2 @@
+build/
+.dep/
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.project b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.project
new file mode 100644
index 0000000..26c76f3
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/.project
@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>RT-STM32F429-DISCOVERY-TRIBUF</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>
+	</natures>
+	<linkedResources>
+		<link>
+			<name>os-community</name>
+			<type>2</type>
+			<locationURI>PARENT-3-PROJECT_LOC/os</locationURI>
+		</link>
+		<link>
+			<name>os-git</name>
+			<type>2</type>
+			<locationURI>PARENT-4-PROJECT_LOC/os</locationURI>
+		</link>
+	</linkedResources>
+</projectDescription>
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/Makefile b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/Makefile
new file mode 100644
index 0000000..ac6db0e
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/Makefile
@@ -0,0 +1,225 @@
+##############################################################################

+# 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 = no

+endif

+

+# If enabled, this option allows to compile the application in THUMB mode.

+ifeq ($(USE_THUMB),)

+  USE_THUMB = yes

+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 Cortex-M process stack. This stack is

+# the stack used by the main() thread.

+ifeq ($(USE_PROCESS_STACKSIZE),)

+  USE_PROCESS_STACKSIZE = 0x400

+endif

+

+# Stack size to the allocated to the Cortex-M main/exceptions stack. This

+# stack is used for processing interrupts and exceptions.

+ifeq ($(USE_EXCEPTIONS_STACKSIZE),)

+  USE_EXCEPTIONS_STACKSIZE = 0x400

+endif

+

+# Enables the use of FPU on Cortex-M4 (no, softfp, hard).

+ifeq ($(USE_FPU),)

+  USE_FPU = no

+endif

+

+#

+# Architecture or project specific options

+##############################################################################

+

+##############################################################################

+# Project, sources and paths

+#

+

+# Define project name here

+PROJECT = ch

+

+# Imported source files and paths

+CHIBIOS = ../../../..

+# Startup files.

+include $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_stm32f4xx.mk

+# HAL-OSAL files (optional).

+include $(CHIBIOS)/community/os/hal/hal.mk

+include $(CHIBIOS)/community/os/hal/ports/STM32/STM32F4xx/platform.mk

+include $(CHIBIOS)/os/hal/boards/ST_STM32F429I_DISCOVERY/board.mk

+include $(CHIBIOS)/os/hal/osal/rt/osal.mk

+# RTOS files (optional).

+include $(CHIBIOS)/os/rt/rt.mk

+include $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v7m.mk

+# Other files (optional).

+include $(CHIBIOS)/test/rt/test.mk

+

+# Define linker script file here

+LDSCRIPT = $(STARTUPLD)/STM32F429xI.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) \

+       $(TESTSRC) \

+       $(CHIBIOS)/os/various/shell.c \

+       $(CHIBIOS)/os/hal/lib/streams/memstreams.c \

+       $(CHIBIOS)/os/hal/lib/streams/chprintf.c \

+       $(CHIBIOS)/community/os/various/tribuf.c \

+       ./usbcfg.c \

+       ./main.c \

+       # eol

+

+# 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 = $(STARTUPASM) $(PORTASM) $(OSALASM)

+

+INCDIR = $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \

+         $(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \

+         $(CHIBIOS)/os/various \

+         $(CHIBIOS)/os/hal/lib/streams \

+         $(CHIBIOS)/community/os/various \

+         # eol

+

+#

+# Project, sources and paths

+##############################################################################

+

+##############################################################################

+# Compiler settings

+#

+

+MCU  = cortex-m4

+

+#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 -Wstrict-prototypes

+

+# Define C++ warning options here

+CPPWARN = -Wall -Wextra

+

+#

+# 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/ports/ARMCMx/compilers/GCC

+include $(RULESPATH)/rules.mk

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/chconf.h b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/chconf.h
new file mode 100644
index 0000000..9e83c6b
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/chconf.h
@@ -0,0 +1,501 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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_

+

+/*===========================================================================*/

+/**

+ * @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 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                       TRUE

+

+/**

+ * @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                 FALSE

+

+/**

+ * @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                 FALSE

+

+/**

+ * @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                FALSE

+

+/**

+ * @brief   I/O Queues APIs.

+ * @details If enabled then the I/O queues APIs are included in the kernel.

+ *

+ * @note    The default is @p TRUE.

+ */

+#define CH_CFG_USE_QUEUES                   FALSE

+

+/**

+ * @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                 FALSE

+

+/**

+ * @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 Debug options

+ * @{

+ */

+/*===========================================================================*/

+

+/**

+ * @brief   Debug option, kernel statistics.

+ *

+ * @note    The default is @p FALSE.

+ */

+#define CH_DBG_STATISTICS                   TRUE

+

+/**

+ * @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 context switch circular trace buffer is

+ *          activated.

+ *

+ * @note    The default is @p FALSE.

+ */

+#define CH_DBG_ENABLE_TRACE                 TRUE

+

+/**

+ * @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           TRUE

+

+/**

+ * @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                 TRUE

+

+/**

+ * @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            TRUE

+

+/** @} */

+

+/*===========================================================================*/

+/**

+ * @name Kernel hooks

+ * @{

+ */

+/*===========================================================================*/

+

+/**

+ * @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 chThdInit() API.

+ *

+ * @note    It is invoked from within @p chThdInit() 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.

+ *

+ * @note    It is inserted into lock zone.

+ * @note    It is also invoked when the threads simply return in order to

+ *          terminate.

+ */

+#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   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() {                                          \

+}

+

+/**

+ * @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() {                                          \

+}

+

+/**

+ * @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.*/                                               \

+}

+

+/** @} */

+

+/*===========================================================================*/

+/* Port-specific settings (override port settings defaulted in chcore.h).    */

+/*===========================================================================*/

+

+#define TRIBUF_USE_WAIT                     TRUE

+

+#endif  /* _CHCONF_H_ */

+

+/** @} */

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/debug/RT-STM32F429-DISCOVERY-TRIBUF (OpenOCD, Flash and Run).launch b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/debug/RT-STM32F429-DISCOVERY-TRIBUF (OpenOCD, Flash and Run).launch
new file mode 100644
index 0000000..10e0dc6
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/debug/RT-STM32F429-DISCOVERY-TRIBUF (OpenOCD, Flash and Run).launch
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>

+<launchConfiguration type="org.eclipse.cdt.debug.gdbjtag.launchConfigurationType">

+<stringAttribute key="bad_container_name" value="\RT-STM32F429-DISCOVERY-TRIBUF\debug"/>

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+<stringAttribute key="org.eclipse.cdt.debug.gdbjtag.core.jtagDevice" value="Generic TCP/IP"/>

+<booleanAttribute key="org.eclipse.cdt.debug.gdbjtag.core.loadImage" value="true"/>

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+</listAttribute>

+<listAttribute key="org.eclipse.debug.ui.favoriteGroups">

+<listEntry value="org.eclipse.debug.ui.launchGroup.debug"/>

+</listAttribute>

+</launchConfiguration>

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/debug/RT-STM32F429-DISCOVERY-TRIBUF (OpenOCD, Run Only).launch b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/debug/RT-STM32F429-DISCOVERY-TRIBUF (OpenOCD, Run Only).launch
new file mode 100644
index 0000000..b28c65c
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/debug/RT-STM32F429-DISCOVERY-TRIBUF (OpenOCD, Run Only).launch
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>

+<launchConfiguration type="org.eclipse.cdt.debug.gdbjtag.launchConfigurationType">

+<stringAttribute key="bad_container_name" value="\RT-STM32F429-DISCOVERY-TRIBUF\debug"/>

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+<stringAttribute key="org.eclipse.cdt.dsf.gdb.DEBUG_NAME" value="arm-none-eabi-gdb"/>

+<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;"/>

+<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;"/>

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+</listAttribute>

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+</listAttribute>

+<listAttribute key="org.eclipse.debug.ui.favoriteGroups">

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+</listAttribute>

+</launchConfiguration>

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/halconf.h b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/halconf.h
new file mode 100644
index 0000000..2e601fc
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/halconf.h
@@ -0,0 +1,340 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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 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                 FALSE

+#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 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              FALSE

+#endif

+

+/**

+ * @brief   Enables the SERIAL over USB subsystem.

+ */

+#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)

+#define HAL_USE_SERIAL_USB          TRUE

+#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                 TRUE

+#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

+

+/*===========================================================================*/

+/* 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      115200

+#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 64 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 64 bytes for both the transmission and receive

+ *          buffers.

+ */

+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)

+#define SERIAL_USB_BUFFERS_SIZE     256

+#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

+

+/*===========================================================================*/

+/* Community drivers' includes                                               */

+/*===========================================================================*/

+

+#include "halconf_community.h"

+

+#endif /* _HALCONF_H_ */

+

+/** @} */

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/halconf_community.h b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/halconf_community.h
new file mode 100644
index 0000000..44e89df
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/halconf_community.h
@@ -0,0 +1,70 @@
+/*
+    ChibiOS - Copyright (C) 2014 Uladzimir Pylinsky aka barthess
+
+    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 _HALCONF_COMMUNITY_H_
+#define _HALCONF_COMMUNITY_H_
+
+/**
+ * @brief   Enables the community overlay.
+ */
+#if !defined(HAL_USE_COMMUNITY) || defined(__DOXYGEN__)
+#define HAL_USE_COMMUNITY           TRUE
+#endif
+
+/**
+ * @brief   Enables the NAND subsystem.
+ */
+#if !defined(HAL_USE_NAND) || defined(__DOXYGEN__)
+#define HAL_USE_NAND                FALSE
+#endif
+
+/**
+ * @brief   Enables the 1-wire subsystem.
+ */
+#if !defined(HAL_USE_ONEWIRE) || defined(__DOXYGEN__)
+#define HAL_USE_ONEWIRE             FALSE
+#endif
+
+/*===========================================================================*/
+/* FSMCNAND driver related settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables the @p nandAcquireBus() and @p nanReleaseBus() APIs.
+ * @note    Disabling this option saves both code and data space.
+ */
+#if !defined(NAND_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define NAND_USE_MUTUAL_EXCLUSION   TRUE
+#endif
+
+/*===========================================================================*/
+/* 1-wire driver related settings.                                           */
+/*===========================================================================*/
+/**
+ * @brief   Enables strong pull up feature.
+ * @note    Disabling this option saves both code and data space.
+ */
+#define ONEWIRE_USE_STRONG_PULLUP   FALSE
+
+/**
+ * @brief   Enables search ROM feature.
+ * @note    Disabling this option saves both code and data space.
+ */
+#define ONEWIRE_USE_SEARCH_ROM      TRUE
+
+#endif /* _HALCONF_COMMUNITY_H_ */
+
+/** @} */
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/main.c b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/main.c
new file mode 100644
index 0000000..25ffd87
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/main.c
@@ -0,0 +1,551 @@
+/*

+    Copyright (C) 2013-2015 Andrea Zoppi

+

+    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 "test.h"

+

+#include "chprintf.h"

+#include "shell.h"

+#if (HAL_USE_SERIAL_USB == TRUE)

+#include "usbcfg.h"

+#endif

+

+#include "tribuf.h"

+#include <string.h>

+#include <stdlib.h>

+

+#if (HAL_USE_SERIAL_USB == TRUE)

+/* Virtual serial port over USB.*/

+SerialUSBDriver SDU1;

+static BaseSequentialStream *const chout = (BaseSequentialStream *)&SDU1;

+#else

+static BaseSequentialStream *const chout = (BaseSequentialStream *)&SD1;

+#endif

+

+/*===========================================================================*/

+/* Triple buffer related.                                                    */

+/*===========================================================================*/

+

+#define READER_STACK_SIZE   256

+#define READER_WA_SIZE      THD_WORKING_AREA_SIZE(READER_STACK_SIZE)

+#define READER_DELAY_MS     200

+#define READER_PRIORITY     (NORMALPRIO + 2)

+

+#define WRITER_STACK_SIZE   256

+#define WRITER_WA_SIZE      THD_WORKING_AREA_SIZE(WRITER_STACK_SIZE)

+#define WRITER_DELAY_MS     100

+#define WRITER_PRIORITY     (NORMALPRIO + 1)

+

+static thread_t *reader_tp;

+static uint16_t reader_delay = READER_DELAY_MS;

+static tprio_t reader_priority = READER_PRIORITY;

+static bool reader_suspend = false;

+static systime_t reader_timeout = TIME_INFINITE;

+

+static thread_t *writer_tp;

+static uint16_t writer_delay = WRITER_DELAY_MS;

+static tprio_t writer_priority = WRITER_PRIORITY;

+static bool writer_suspend = false;

+

+static tribuf_t tribuf_handler;

+static char buffer_a, buffer_b, buffer_c;

+

+static const char text[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ\r\n";

+

+/**

+ * @brief   Reads from the front buffer.

+ *

+ * @return  Buffered character from @p text or special symbol.

+ * @retval '.'  No new front buffer within timeout.

+ */

+static char read_front(void) {

+

+  const char *front;

+  msg_t error;

+  char c;

+

+  /* Wait until a new front buffer gets available with prepared data */

+  error = tribufWaitReadyTimeout(&tribuf_handler, reader_timeout);

+  if (error == MSG_OK) {

+    /* Retrieve the new front buffer */

+    tribufSwapFront(&tribuf_handler);

+    front = (const char *)tribufGetFront(&tribuf_handler);

+

+    /* Read data from the new front buffer */

+    c = front[0];

+  } else {

+    c = '.';  /* Timeout placeholder */

+  }

+  return c;

+}

+

+/*

+ * @brief   Overwrites the back buffer with the provided character.

+ *

+ * @param[in] c   Character to store into the current back buffer.

+ */

+static void write_back(char c) {

+

+  char *back;

+

+  /* Retrieve the current back buffer */

+  back = (char *)tribufGetBack(&tribuf_handler);

+

+  /* Prepare data onto the current back buffer */

+  back[0] = c;

+

+  /* Exchange the prepared buffer with a new one */

+  tribufSwapBack(&tribuf_handler);

+}

+

+/*

+ * Reads the front buffer and prints it.

+ */

+static THD_WORKING_AREA(reader_wa, READER_STACK_SIZE);

+static THD_FUNCTION(reader_thread, arg) {

+

+  thread_reference_t thread_ref;

+  tprio_t old_priority;

+  char c;

+  (void)arg;

+

+  chRegSetThreadName("reader_thread");

+  old_priority = chThdGetPriorityX();

+

+  for (;;) {

+    /* Read from the fron buffer and print the retrieved character */

+    c = read_front();

+    chprintf(chout, "%c", c);

+

+    /* Change priority, suspend or delay */

+    osalSysLock();

+    palTogglePad(GPIOG, GPIOG_LED3_GREEN);

+    if (old_priority != reader_priority) {

+      chThdSetPriority(reader_priority);

+    }

+    if (reader_suspend) {

+      thread_ref = NULL;

+      osalThreadSuspendS(&thread_ref);

+      reader_suspend = false;

+    } else {

+      osalThreadSleepS(MS2ST(reader_delay));

+    }

+    old_priority = chThdGetPriorityX();

+    osalSysUnlock();

+  }

+}

+

+/*

+ * Overwrites the back buffer with a fixed text, character by character.

+ */

+static THD_WORKING_AREA(writer_wa, WRITER_STACK_SIZE);

+static THD_FUNCTION(writer_thread, arg) {

+

+  thread_reference_t thread_ref;

+  tprio_t old_priority;

+  size_t i;

+  char c;

+  (void)arg;

+

+  chRegSetThreadName("writer_thread");

+  old_priority = chThdGetPriorityX();

+

+  for (;;) {

+    for (i = 0; i < sizeof(text); ++i) {

+      /* Write the next character on the current back buffer */

+      c = text[i];

+      write_back(c);

+

+      /* Change priority, suspend or delay */

+      osalSysLock();

+      palTogglePad(GPIOG, GPIOG_LED4_RED);

+      if (old_priority != writer_priority) {

+        chThdSetPriority(writer_priority);

+      }

+      if (writer_suspend) {

+        thread_ref = NULL;

+        osalThreadSuspendS(&thread_ref);

+        writer_suspend = false;

+      } else {

+        osalThreadSleepS(MS2ST(writer_delay));

+      }

+      osalSysUnlock();

+    }

+  }

+}

+

+/*===========================================================================*/

+/* Command line related.                                                     */

+/*===========================================================================*/

+

+#define streq(s1, s2)   (strcmp((s1), (s2)) == 0)

+

+#define SHELL_WA_SIZE   THD_WORKING_AREA_SIZE(2048)

+#define TEST_WA_SIZE    THD_WORKING_AREA_SIZE(256)

+

+static void cmd_mem(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  size_t n, size;

+  (void)argv;

+

+  if (argc > 0) {

+    chprintf(chp, "Usage: mem\r\n");

+    return;

+  }

+

+  n = chHeapStatus(NULL, &size);

+  chprintf(chp, "core free memory : %u bytes\r\n", chCoreGetStatusX());

+  chprintf(chp, "heap fragments   : %u\r\n", n);

+  chprintf(chp, "heap free total  : %u bytes\r\n", size);

+}

+

+static void cmd_threads(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  static const char *states[] = {CH_STATE_NAMES};

+  thread_t *tp;

+  (void)argv;

+

+  if (argc > 0) {

+    chprintf(chp, "Usage: threads\r\n");

+    return;

+  }

+

+  chprintf(chp, "    addr    stack prio refs     state name\r\n");

+  tp = chRegFirstThread();

+  do {

+    chprintf(chp, "%08lx %08lx %4lu %4lu %9s %s\r\n",

+            (uint32_t)tp, (uint32_t)tp->p_ctx.r13,

+            (uint32_t)tp->p_prio, (uint32_t)(tp->p_refs - 1),

+            states[tp->p_state], tp->p_name);

+    tp = chRegNextThread(tp);

+  } while (tp != NULL);

+}

+

+static void cmd_test(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  thread_t *tp;

+  (void)argv;

+

+  if (argc > 0) {

+    chprintf(chp, "Usage: test\r\n");

+    return;

+  }

+

+  tp = chThdCreateFromHeap(NULL, TEST_WA_SIZE, chThdGetPriorityX(),

+                           TestThread, chp);

+  if (tp == NULL) {

+    chprintf(chp, "out of memory\r\n");

+    return;

+  }

+  chThdWait(tp);

+}

+

+static void cmd_reset(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  (void)argv;

+

+  if (argc > 0) {

+    chprintf(chp, "Usage: reset\r\n");

+    return;

+  }

+

+  chprintf(chp, "Will reset in 200ms\r\n");

+  chThdSleepMilliseconds(200);

+  NVIC_SystemReset();

+}

+

+static void cmd_run(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  thread_reference_t thread_ref;

+  const char *const usage = "Usage: run (reader|writer)\r\n";

+

+  if (argc != 1) {

+    chprintf(chp, usage);

+    return;

+  }

+

+  if (streq(argv[0], "reader")) {

+    osalSysLock();

+    if (reader_suspend) {

+      thread_ref = (thread_reference_t)reader_tp;

+      osalThreadResumeS(&thread_ref, MSG_OK);

+    }

+    osalSysUnlock();

+  }

+  else if (streq(argv[0], "writer")) {

+    osalSysLock();

+    if (writer_suspend) {

+      thread_ref = (thread_reference_t)writer_tp;

+      osalThreadResumeS(&thread_ref, MSG_OK);

+    }

+    osalSysUnlock();

+  }

+  else {

+    chprintf(chp, usage);

+  }

+}

+

+static void cmd_stop(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  const char *const usage = "Usage: stop (reader|writer)\r\n";

+

+  if (argc != 1) {

+    chprintf(chp, usage);

+    return;

+  }

+

+  if (streq(argv[0], "reader")) {

+    osalSysLock();

+    reader_suspend = true;

+    osalSysUnlock();

+  }

+  else if (streq(argv[0], "writer")) {

+    osalSysLock();

+    writer_suspend = true;

+    osalSysUnlock();

+  }

+  else {

+    chprintf(chp, usage);

+  }

+}

+

+static void cmd_delay(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  const char *const usage = "Usage: delay (reader|writer) DELAY_MS\r\n";

+  uint16_t delay;

+

+  if (argc != 2) {

+    chprintf(chp, usage);

+    return;

+  }

+  delay = (uint16_t)atoi(argv[1]);

+

+  if (streq(argv[0], "reader")) {

+    osalSysLock();

+    reader_delay = delay;

+    osalSysUnlock();

+  }

+  else if (streq(argv[0], "writer")) {

+    osalSysLock();

+    writer_delay = delay;

+    osalSysUnlock();

+  }

+  else {

+    chprintf(chp, usage);

+  }

+}

+

+static void cmd_priority(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  const char *const usage =

+    "Usage: priority (reader|writer) THREAD_PRIORITY\r\n";

+  tprio_t priority;

+

+  if (argc != 2) {

+    chprintf(chp, usage);

+    return;

+  }

+  priority = (tprio_t)atoi(argv[1]);

+

+  if (streq(argv[0], "reader")) {

+    osalSysLock();

+    reader_priority = priority;

+    osalSysUnlock();

+  }

+  else if (streq(argv[0], "writer")) {

+    osalSysLock();

+    writer_priority = priority;

+    osalSysUnlock();

+  }

+  else {

+    chprintf(chp, usage);

+  }

+}

+

+static void cmd_timeout(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  const char *const usage = "Usage: timeout TIMEOUT_MS\r\n";

+  systime_t timeout;

+

+  if (argc != 1) {

+    chprintf(chp, usage);

+    return;

+  }

+

+  if (streq(argv[0], "-"))

+    timeout = TIME_IMMEDIATE;

+  else if (streq(argv[0], "*"))

+    timeout = TIME_INFINITE;

+  else

+    timeout = (systime_t)atoi(argv[0]);

+

+  osalSysLock();

+  reader_timeout = timeout;

+  osalSysUnlock();

+}

+

+static void cmd_params(BaseSequentialStream *chp, int argc, char *argv[]) {

+

+  const char *const usage = "Usage: params\r\n";

+

+  uint32_t reader_delay_;

+  uint32_t reader_priority_;

+  uint32_t reader_suspend_;

+  uint32_t reader_timeout_;

+

+  uint32_t writer_delay_;

+  uint32_t writer_priority_;

+  uint32_t writer_suspend_;

+

+  (void)argv;

+  if (argc != 0) {

+    chprintf(chp, usage);

+    return;

+  }

+

+  osalSysLock();

+  reader_delay_     = (uint32_t)reader_delay;

+  reader_priority_  = (uint32_t)reader_priority;

+  reader_suspend_   = (uint32_t)reader_suspend;

+  reader_timeout_   = (uint32_t)reader_timeout;

+

+  writer_delay_     = (uint32_t)writer_delay;

+  writer_priority_  = (uint32_t)writer_priority;

+  writer_suspend_   = (uint32_t)writer_suspend;

+  osalSysUnlock();

+

+  chprintf(chp, "reader_delay       %U\r\n", reader_delay_);

+  chprintf(chp, "reader_priority    %U\r\n", reader_priority_);

+  chprintf(chp, "reader_suspend     %U\r\n", reader_suspend_);

+  if (reader_timeout_ == TIME_IMMEDIATE)

+    chprintf(chp, "reader_timeout     -\r\n");

+  if (reader_timeout_ == TIME_INFINITE)

+    chprintf(chp, "reader_timeout     *\r\n");

+  else

+    chprintf(chp, "reader_timeout     %U\r\n", reader_timeout_);

+

+  chprintf(chp, "writer_delay       %U\r\n", writer_delay_);

+  chprintf(chp, "writer_priority    %U\r\n", writer_priority_);

+  chprintf(chp, "writer_suspend     %U\r\n", writer_suspend_);

+}

+

+static const ShellCommand commands[] = {

+  {"mem", cmd_mem},

+  {"threads", cmd_threads},

+  {"test", cmd_test},

+  {"reset", cmd_reset},

+  {"run", cmd_run},

+  {"stop", cmd_stop},

+  {"delay", cmd_delay},

+  {"priority", cmd_priority},

+  {"timeout", cmd_timeout},

+  {"params", cmd_params},

+  {NULL, NULL}

+};

+

+static const ShellConfig shell_cfg1 = {

+#if (HAL_USE_SERIAL_USB == TRUE)

+  (BaseSequentialStream *)&SDU1,

+#else

+  (BaseSequentialStream *)&SD1,

+#endif

+  commands

+};

+

+/*===========================================================================*/

+/* Initialization and main thread.                                           */

+/*===========================================================================*/

+

+/*

+ * Application entry point.

+ */

+int main(void) {

+

+  thread_t *shelltp = NULL;

+

+  /*

+   * 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();

+

+#if (HAL_USE_SERIAL_USB == TRUE)

+  /*

+   * Initializes a serial-over-USB CDC driver.

+   */

+  sduObjectInit(&SDU1);

+  sduStart(&SDU1, &serusbcfg);

+

+  /*

+   * Activates the USB driver and then the USB bus pull-up on D+.

+   * Note, a delay is inserted in order to not have to disconnect the cable

+   * after a reset.

+   */

+  usbDisconnectBus(serusbcfg.usbp);

+  chThdSleepMilliseconds(1000);

+  usbStart(serusbcfg.usbp, &usbcfg);

+  usbConnectBus(serusbcfg.usbp);

+#else

+  /*

+   * Initializes serial port.

+   */

+  sdStart(&SD1, NULL);

+#endif /* HAL_USE_SERIAL_USB */

+

+  /*

+   * Writer and reader threads started for triple buffer demo.

+   */

+  tribufObjectInit(&tribuf_handler, &buffer_a, &buffer_b, &buffer_c);

+

+  reader_tp = chThdCreateStatic(reader_wa, READER_WA_SIZE,

+                                reader_priority, reader_thread, NULL);

+

+  writer_tp = chThdCreateStatic(writer_wa, WRITER_WA_SIZE,

+                                writer_priority, writer_thread, NULL);

+

+  /*

+   * Normal main() thread activity, in this demo it just performs

+   * a shell respawn upon its termination.

+   */

+  for (;;) {

+    if (!shelltp) {

+#if (HAL_USE_SERIAL_USB == TRUE)

+      if (SDU1.config->usbp->state == USB_ACTIVE) {

+        /* Spawns a new shell.*/

+        shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO);

+      }

+#else

+      shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO);

+#endif

+    }

+    else {

+      /* If the previous shell exited.*/

+      if (chThdTerminatedX(shelltp)) {

+        /* Recovers memory of the previous shell.*/

+        chThdRelease(shelltp);

+        shelltp = NULL;

+      }

+    }

+    chThdSleepMilliseconds(500);

+  }

+  return 0;

+}

+

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/mcuconf.h b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/mcuconf.h
new file mode 100644
index 0000000..0438c01
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/mcuconf.h
@@ -0,0 +1,347 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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_

+

+/*

+ * STM32F4xx drivers configuration.

+ * The following settings override the default settings present in

+ * the various device driver implementation headers.

+ * Note that the settings for each driver only have effect if the whole

+ * driver is enabled in halconf.h.

+ *

+ * IRQ priorities:

+ * 15...0       Lowest...Highest.

+ *

+ * DMA priorities:

+ * 0...3        Lowest...Highest.

+ */

+

+#define STM32F4xx_MCUCONF

+

+/*

+ * HAL driver system settings.

+ */

+#define STM32_NO_INIT                       FALSE

+#define STM32_HSI_ENABLED                   TRUE

+#define STM32_LSI_ENABLED                   TRUE

+#define STM32_HSE_ENABLED                   TRUE

+#define STM32_LSE_ENABLED                   FALSE

+#define STM32_CLOCK48_REQUIRED              TRUE

+#define STM32_SW                            STM32_SW_PLL

+#define STM32_PLLSRC                        STM32_PLLSRC_HSE

+#define STM32_PLLM_VALUE                    8

+#define STM32_PLLN_VALUE                    336

+#define STM32_PLLP_VALUE                    2

+#define STM32_PLLQ_VALUE                    7

+#define STM32_HPRE                          STM32_HPRE_DIV1

+#define STM32_PPRE1                         STM32_PPRE1_DIV4

+#define STM32_PPRE2                         STM32_PPRE2_DIV2

+#define STM32_RTCSEL                        STM32_RTCSEL_LSI

+#define STM32_RTCPRE_VALUE                  8

+#define STM32_MCO1SEL                       STM32_MCO1SEL_HSI

+#define STM32_MCO1PRE                       STM32_MCO1PRE_DIV1

+#define STM32_MCO2SEL                       STM32_MCO2SEL_SYSCLK

+#define STM32_MCO2PRE                       STM32_MCO2PRE_DIV5

+#define STM32_I2SSRC                        STM32_I2SSRC_CKIN

+#define STM32_PLLI2SN_VALUE                 192

+#define STM32_PLLI2SR_VALUE                 5

+#define STM32_PVD_ENABLE                    FALSE

+#define STM32_PLS                           STM32_PLS_LEV0

+#define STM32_BKPRAM_ENABLE                 FALSE

+#define STM32_SAISRC                        STM32_SAISRC_PLL

+#define STM32_PLLSAIN_VALUE                 192

+#define STM32_PLLSAIQ_VALUE                 7

+#define STM32_PLLSAIR_VALUE                 4

+#define STM32_PLLSAIR_POST                  STM32_SAIR_DIV4

+

+/*

+ * ADC driver system settings.

+ */

+#define STM32_ADC_ADCPRE                    ADC_CCR_ADCPRE_DIV4

+#define STM32_ADC_USE_ADC1                  FALSE

+#define STM32_ADC_USE_ADC2                  FALSE

+#define STM32_ADC_USE_ADC3                  FALSE

+#define STM32_ADC_ADC1_DMA_STREAM           STM32_DMA_STREAM_ID(2, 4)

+#define STM32_ADC_ADC2_DMA_STREAM           STM32_DMA_STREAM_ID(2, 2)

+#define STM32_ADC_ADC3_DMA_STREAM           STM32_DMA_STREAM_ID(2, 1)

+#define STM32_ADC_ADC1_DMA_PRIORITY         2

+#define STM32_ADC_ADC2_DMA_PRIORITY         2

+#define STM32_ADC_ADC3_DMA_PRIORITY         2

+#define STM32_ADC_IRQ_PRIORITY              6

+#define STM32_ADC_ADC1_DMA_IRQ_PRIORITY     6

+#define STM32_ADC_ADC2_DMA_IRQ_PRIORITY     6

+#define STM32_ADC_ADC3_DMA_IRQ_PRIORITY     6

+

+/*

+ * CAN driver system settings.

+ */

+#define STM32_CAN_USE_CAN1                  FALSE

+#define STM32_CAN_USE_CAN2                  FALSE

+#define STM32_CAN_CAN1_IRQ_PRIORITY         11

+#define STM32_CAN_CAN2_IRQ_PRIORITY         11

+

+/*

+ * DAC driver system settings.

+ */

+#define STM32_DAC_DUAL_MODE                 FALSE

+#define STM32_DAC_USE_DAC1_CH1              FALSE

+#define STM32_DAC_USE_DAC1_CH2              FALSE

+#define STM32_DAC_DAC1_CH1_IRQ_PRIORITY     10

+#define STM32_DAC_DAC1_CH2_IRQ_PRIORITY     10

+#define STM32_DAC_DAC1_CH1_DMA_PRIORITY     2

+#define STM32_DAC_DAC1_CH2_DMA_PRIORITY     2

+#define STM32_DAC_DAC1_CH1_DMA_STREAM       STM32_DMA_STREAM_ID(1, 5)

+#define STM32_DAC_DAC1_CH2_DMA_STREAM       STM32_DMA_STREAM_ID(1, 6)

+

+/*

+ * EXT driver system settings.

+ */

+#define STM32_EXT_EXTI0_IRQ_PRIORITY        6

+#define STM32_EXT_EXTI1_IRQ_PRIORITY        6

+#define STM32_EXT_EXTI2_IRQ_PRIORITY        6

+#define STM32_EXT_EXTI3_IRQ_PRIORITY        6

+#define STM32_EXT_EXTI4_IRQ_PRIORITY        6

+#define STM32_EXT_EXTI5_9_IRQ_PRIORITY      6

+#define STM32_EXT_EXTI10_15_IRQ_PRIORITY    6

+#define STM32_EXT_EXTI16_IRQ_PRIORITY       6

+#define STM32_EXT_EXTI17_IRQ_PRIORITY       15

+#define STM32_EXT_EXTI18_IRQ_PRIORITY       6

+#define STM32_EXT_EXTI19_IRQ_PRIORITY       6

+#define STM32_EXT_EXTI20_IRQ_PRIORITY       6

+#define STM32_EXT_EXTI21_IRQ_PRIORITY       15

+#define STM32_EXT_EXTI22_IRQ_PRIORITY       15

+

+/*

+ * GPT driver system settings.

+ */

+#define STM32_GPT_USE_TIM1                  FALSE

+#define STM32_GPT_USE_TIM2                  FALSE

+#define STM32_GPT_USE_TIM3                  FALSE

+#define STM32_GPT_USE_TIM4                  FALSE

+#define STM32_GPT_USE_TIM5                  FALSE

+#define STM32_GPT_USE_TIM6                  FALSE

+#define STM32_GPT_USE_TIM7                  FALSE

+#define STM32_GPT_USE_TIM8                  FALSE

+#define STM32_GPT_USE_TIM9                  FALSE

+#define STM32_GPT_USE_TIM11                 FALSE

+#define STM32_GPT_USE_TIM12                 FALSE

+#define STM32_GPT_USE_TIM14                 FALSE

+#define STM32_GPT_TIM1_IRQ_PRIORITY         7

+#define STM32_GPT_TIM2_IRQ_PRIORITY         7

+#define STM32_GPT_TIM3_IRQ_PRIORITY         7

+#define STM32_GPT_TIM4_IRQ_PRIORITY         7

+#define STM32_GPT_TIM5_IRQ_PRIORITY         7

+#define STM32_GPT_TIM6_IRQ_PRIORITY         7

+#define STM32_GPT_TIM7_IRQ_PRIORITY         7

+#define STM32_GPT_TIM8_IRQ_PRIORITY         7

+#define STM32_GPT_TIM9_IRQ_PRIORITY         7

+#define STM32_GPT_TIM11_IRQ_PRIORITY        7

+#define STM32_GPT_TIM12_IRQ_PRIORITY        7

+#define STM32_GPT_TIM14_IRQ_PRIORITY        7

+

+/*

+ * I2C driver system settings.

+ */

+#define STM32_I2C_USE_I2C1                  FALSE

+#define STM32_I2C_USE_I2C2                  FALSE

+#define STM32_I2C_USE_I2C3                  FALSE

+#define STM32_I2C_BUSY_TIMEOUT              50

+#define STM32_I2C_I2C1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 0)

+#define STM32_I2C_I2C1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 6)

+#define STM32_I2C_I2C2_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 2)

+#define STM32_I2C_I2C2_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 7)

+#define STM32_I2C_I2C3_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 2)

+#define STM32_I2C_I2C3_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 4)

+#define STM32_I2C_I2C1_IRQ_PRIORITY         5

+#define STM32_I2C_I2C2_IRQ_PRIORITY         5

+#define STM32_I2C_I2C3_IRQ_PRIORITY         5

+#define STM32_I2C_I2C1_DMA_PRIORITY         3

+#define STM32_I2C_I2C2_DMA_PRIORITY         3

+#define STM32_I2C_I2C3_DMA_PRIORITY         3

+#define STM32_I2C_DMA_ERROR_HOOK(i2cp)      osalSysHalt("DMA failure")

+

+/*

+ * ICU driver system settings.

+ */

+#define STM32_ICU_USE_TIM1                  FALSE

+#define STM32_ICU_USE_TIM2                  FALSE

+#define STM32_ICU_USE_TIM3                  FALSE

+#define STM32_ICU_USE_TIM4                  FALSE

+#define STM32_ICU_USE_TIM5                  FALSE

+#define STM32_ICU_USE_TIM8                  FALSE

+#define STM32_ICU_USE_TIM9                  FALSE

+#define STM32_ICU_TIM1_IRQ_PRIORITY         7

+#define STM32_ICU_TIM2_IRQ_PRIORITY         7

+#define STM32_ICU_TIM3_IRQ_PRIORITY         7

+#define STM32_ICU_TIM4_IRQ_PRIORITY         7

+#define STM32_ICU_TIM5_IRQ_PRIORITY         7

+#define STM32_ICU_TIM8_IRQ_PRIORITY         7

+#define STM32_ICU_TIM9_IRQ_PRIORITY         7

+

+/*

+ * MAC driver system settings.

+ */

+#define STM32_MAC_TRANSMIT_BUFFERS          2

+#define STM32_MAC_RECEIVE_BUFFERS           4

+#define STM32_MAC_BUFFERS_SIZE              1522

+#define STM32_MAC_PHY_TIMEOUT               100

+#define STM32_MAC_ETH1_CHANGE_PHY_STATE     TRUE

+#define STM32_MAC_ETH1_IRQ_PRIORITY         13

+#define STM32_MAC_IP_CHECKSUM_OFFLOAD       0

+

+/*

+ * PWM driver system settings.

+ */

+#define STM32_PWM_USE_ADVANCED              FALSE

+#define STM32_PWM_USE_TIM1                  FALSE

+#define STM32_PWM_USE_TIM2                  FALSE

+#define STM32_PWM_USE_TIM3                  FALSE

+#define STM32_PWM_USE_TIM4                  FALSE

+#define STM32_PWM_USE_TIM5                  FALSE

+#define STM32_PWM_USE_TIM8                  FALSE

+#define STM32_PWM_USE_TIM9                  FALSE

+#define STM32_PWM_TIM1_IRQ_PRIORITY         7

+#define STM32_PWM_TIM2_IRQ_PRIORITY         7

+#define STM32_PWM_TIM3_IRQ_PRIORITY         7

+#define STM32_PWM_TIM4_IRQ_PRIORITY         7

+#define STM32_PWM_TIM5_IRQ_PRIORITY         7

+#define STM32_PWM_TIM8_IRQ_PRIORITY         7

+#define STM32_PWM_TIM9_IRQ_PRIORITY         7

+

+/*

+ * SDC driver system settings.

+ */

+#define STM32_SDC_SDIO_DMA_PRIORITY         3

+#define STM32_SDC_SDIO_IRQ_PRIORITY         9

+#define STM32_SDC_WRITE_TIMEOUT_MS          250

+#define STM32_SDC_READ_TIMEOUT_MS           25

+#define STM32_SDC_CLOCK_ACTIVATION_DELAY    10

+#define STM32_SDC_SDIO_UNALIGNED_SUPPORT    TRUE

+#define STM32_SDC_SDIO_DMA_STREAM           STM32_DMA_STREAM_ID(2, 3)

+

+/*

+ * SERIAL driver system settings.

+ */

+#define STM32_SERIAL_USE_USART1             FALSE

+#define STM32_SERIAL_USE_USART2             FALSE

+#define STM32_SERIAL_USE_USART3             FALSE

+#define STM32_SERIAL_USE_UART4              FALSE

+#define STM32_SERIAL_USE_UART5              FALSE

+#define STM32_SERIAL_USE_USART6             FALSE

+#define STM32_SERIAL_USART1_PRIORITY        12

+#define STM32_SERIAL_USART2_PRIORITY        12

+#define STM32_SERIAL_USART3_PRIORITY        12

+#define STM32_SERIAL_UART4_PRIORITY         12

+#define STM32_SERIAL_UART5_PRIORITY         12

+#define STM32_SERIAL_USART6_PRIORITY        12

+

+/*

+ * SPI driver system settings.

+ */

+#define STM32_SPI_USE_SPI1                  FALSE

+#define STM32_SPI_USE_SPI2                  FALSE

+#define STM32_SPI_USE_SPI3                  FALSE

+#define STM32_SPI_USE_SPI4                  FALSE

+#define STM32_SPI_USE_SPI5                  FALSE

+#define STM32_SPI_USE_SPI6                  FALSE

+#define STM32_SPI_SPI1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 0)

+#define STM32_SPI_SPI1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 3)

+#define STM32_SPI_SPI2_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 3)

+#define STM32_SPI_SPI2_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 4)

+#define STM32_SPI_SPI3_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 0)

+#define STM32_SPI_SPI3_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 7)

+#define STM32_SPI_SPI4_RX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 0)

+#define STM32_SPI_SPI4_TX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 1)

+#define STM32_SPI_SPI5_RX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 3)

+#define STM32_SPI_SPI5_TX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 4)

+#define STM32_SPI_SPI6_RX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 6)

+#define STM32_SPI_SPI6_TX_DMA_STREAM        STM32_DMA_STREAM_ID(2, 5)

+#define STM32_SPI_SPI1_DMA_PRIORITY         1

+#define STM32_SPI_SPI2_DMA_PRIORITY         1

+#define STM32_SPI_SPI3_DMA_PRIORITY         1

+#define STM32_SPI_SPI4_DMA_PRIORITY         1

+#define STM32_SPI_SPI5_DMA_PRIORITY         1

+#define STM32_SPI_SPI6_DMA_PRIORITY         1

+#define STM32_SPI_SPI1_IRQ_PRIORITY         10

+#define STM32_SPI_SPI2_IRQ_PRIORITY         10

+#define STM32_SPI_SPI3_IRQ_PRIORITY         10

+#define STM32_SPI_SPI4_IRQ_PRIORITY         10

+#define STM32_SPI_SPI5_IRQ_PRIORITY         10

+#define STM32_SPI_SPI6_IRQ_PRIORITY         10

+#define STM32_SPI_DMA_ERROR_HOOK(spip)      osalSysHalt("DMA failure")

+

+/*

+ * ST driver system settings.

+ */

+#define STM32_ST_IRQ_PRIORITY               8

+#define STM32_ST_USE_TIMER                  2

+

+/*

+ * UART driver system settings.

+ */

+#define STM32_UART_USE_USART1               FALSE

+#define STM32_UART_USE_USART2               FALSE

+#define STM32_UART_USE_USART3               FALSE

+#define STM32_UART_USE_UART4                FALSE

+#define STM32_UART_USE_UART5                FALSE

+#define STM32_UART_USE_USART6               FALSE

+#define STM32_UART_USART1_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 5)

+#define STM32_UART_USART1_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)

+#define STM32_UART_USART2_RX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 5)

+#define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 6)

+#define STM32_UART_USART3_RX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 1)

+#define STM32_UART_USART3_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 3)

+#define STM32_UART_UART4_RX_DMA_STREAM      STM32_DMA_STREAM_ID(1, 2)

+#define STM32_UART_UART4_TX_DMA_STREAM      STM32_DMA_STREAM_ID(1, 4)

+#define STM32_UART_UART5_RX_DMA_STREAM      STM32_DMA_STREAM_ID(1, 0)

+#define STM32_UART_UART5_TX_DMA_STREAM      STM32_DMA_STREAM_ID(1, 7)

+#define STM32_UART_USART6_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 2)

+#define STM32_UART_USART6_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)

+#define STM32_UART_USART1_IRQ_PRIORITY      12

+#define STM32_UART_USART2_IRQ_PRIORITY      12

+#define STM32_UART_USART3_IRQ_PRIORITY      12

+#define STM32_UART_UART4_IRQ_PRIORITY       12

+#define STM32_UART_UART5_IRQ_PRIORITY       12

+#define STM32_UART_USART6_IRQ_PRIORITY      12

+#define STM32_UART_USART1_DMA_PRIORITY      0

+#define STM32_UART_USART2_DMA_PRIORITY      0

+#define STM32_UART_USART3_DMA_PRIORITY      0

+#define STM32_UART_UART4_DMA_PRIORITY       0

+#define STM32_UART_UART5_DMA_PRIORITY       0

+#define STM32_UART_USART6_DMA_PRIORITY      0

+#define STM32_UART_DMA_ERROR_HOOK(uartp)    osalSysHalt("DMA failure")

+

+/*

+ * USB driver system settings.

+ */

+#define STM32_USB_USE_OTG1                  FALSE

+#define STM32_USB_USE_OTG2                  TRUE

+#define STM32_USB_OTG1_IRQ_PRIORITY         14

+#define STM32_USB_OTG2_IRQ_PRIORITY         14

+#define STM32_USB_OTG1_RX_FIFO_SIZE         512

+#define STM32_USB_OTG2_RX_FIFO_SIZE         1024

+#define STM32_USB_OTG_THREAD_PRIO           LOWPRIO

+#define STM32_USB_OTG_THREAD_STACK_SIZE     128

+#define STM32_USB_OTGFIFO_FILL_BASEPRI      0

+

+/*

+ * Header for community drivers.

+ */

+#include "mcuconf_community.h"

+

+#endif /* _MCUCONF_H_ */

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/mcuconf_community.h b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/mcuconf_community.h
new file mode 100644
index 0000000..5fd93fb
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/mcuconf_community.h
@@ -0,0 +1,28 @@
+/*
+    ChibiOS/RT - Copyright (C) 2014 Uladzimir Pylinsky aka barthess
+
+    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.
+*/
+
+/*
+ * FSMC driver system settings.
+ */
+#define STM32_FSMC_USE_FSMC1                FALSE
+#define STM32_FSMC_FSMC1_IRQ_PRIORITY       10
+
+/*
+ * FSMC SDRAM driver system settings.
+ */
+#define STM32_USE_FSMC_SDRAM                FALSE
+#define STM32_SDRAM_USE_FSMC_SDRAM1         FALSE
+#define STM32_SDRAM_USE_FSMC_SDRAM2         FALSE
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/readme.txt b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/readme.txt
new file mode 100644
index 0000000..cc7f406
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/readme.txt
@@ -0,0 +1,30 @@
+*****************************************************************************
+** ChibiOS/RT port for ARM-Cortex-M4 STM32F429.                            **
+*****************************************************************************
+
+** TARGET **
+
+The demo runs on an ST STM32F429I-Discovery board.
+
+** The Demo **
+
+This demo shows how to use a triple buffer handler, with one writer thread and
+one reader thread.
+The writer thread puts a character into the current back buffer, thus swapping
+the back buffer with the orphan buffer for a new write. The writer then sleeps
+for a specified delay in milliseconds.
+The reader thread gets waits (if there is a timeout) until the orphan buffer
+contains available data, becoming the new front buffer. The character is read
+from the new front buffer and printed. The reader then sleeps for a specified
+delay in milliseconds.
+A simple command shell is activated on virtual serial port SD1 or SDU1.
+Via command line it is possible to start, stop, set the delay, and set the
+thread priority of the reader and writer threads.
+The reader can also be assigned a wait timeout in milliseconds, with special
+cases of "*" for infinite timeout, and "-" (or 0 ms) for none.
+
+** Build Procedure **
+
+The demo has been tested by using the free GNU Tools ARM Embedded toolchain
+and ChibiStudio. Just modify the TRGT line in the makefile in order to use
+different GCC toolchains.
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/usbcfg.c b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/usbcfg.c
new file mode 100644
index 0000000..9f95a2a
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/usbcfg.c
@@ -0,0 +1,314 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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"

+

+/*

+ * Endpoints to be used for USBD2.

+ */

+#define USBD2_DATA_REQUEST_EP           1

+#define USBD2_DATA_AVAILABLE_EP         1

+#define USBD2_INTERRUPT_REQUEST_EP      2

+

+/*

+ * USB Device Descriptor.

+ */

+static const uint8_t vcom_device_descriptor_data[18] = {

+  USB_DESC_DEVICE       (0x0110,        /* bcdUSB (1.1).                    */

+                         0x02,          /* bDeviceClass (CDC).              */

+                         0x00,          /* bDeviceSubClass.                 */

+                         0x00,          /* bDeviceProtocol.                 */

+                         0x40,          /* bMaxPacketSize.                  */

+                         0x0483,        /* idVendor (ST).                   */

+                         0x5740,        /* idProduct.                       */

+                         0x0200,        /* bcdDevice.                       */

+                         1,             /* iManufacturer.                   */

+                         2,             /* iProduct.                        */

+                         3,             /* iSerialNumber.                   */

+                         1)             /* bNumConfigurations.              */

+};

+

+/*

+ * Device Descriptor wrapper.

+ */

+static const USBDescriptor vcom_device_descriptor = {

+  sizeof vcom_device_descriptor_data,

+  vcom_device_descriptor_data

+};

+

+/* Configuration Descriptor tree for a CDC.*/

+static const uint8_t vcom_configuration_descriptor_data[67] = {

+  /* Configuration Descriptor.*/

+  USB_DESC_CONFIGURATION(67,            /* wTotalLength.                    */

+                         0x02,          /* bNumInterfaces.                  */

+                         0x01,          /* bConfigurationValue.             */

+                         0,             /* iConfiguration.                  */

+                         0xC0,          /* bmAttributes (self powered).     */

+                         50),           /* bMaxPower (100mA).               */

+  /* Interface Descriptor.*/

+  USB_DESC_INTERFACE    (0x00,          /* bInterfaceNumber.                */

+                         0x00,          /* bAlternateSetting.               */

+                         0x01,          /* bNumEndpoints.                   */

+                         0x02,          /* bInterfaceClass (Communications

+                                           Interface Class, CDC section

+                                           4.2).                            */

+                         0x02,          /* bInterfaceSubClass (Abstract

+                                         Control Model, CDC section 4.3).   */

+                         0x01,          /* bInterfaceProtocol (AT commands,

+                                           CDC section 4.4).                */

+                         0),            /* iInterface.                      */

+  /* Header Functional Descriptor (CDC section 5.2.3).*/

+  USB_DESC_BYTE         (5),            /* bLength.                         */

+  USB_DESC_BYTE         (0x24),         /* bDescriptorType (CS_INTERFACE).  */

+  USB_DESC_BYTE         (0x00),         /* bDescriptorSubtype (Header

+                                           Functional Descriptor.           */

+  USB_DESC_BCD          (0x0110),       /* bcdCDC.                          */

+  /* Call Management Functional Descriptor. */

+  USB_DESC_BYTE         (5),            /* bFunctionLength.                 */

+  USB_DESC_BYTE         (0x24),         /* bDescriptorType (CS_INTERFACE).  */

+  USB_DESC_BYTE         (0x01),         /* bDescriptorSubtype (Call Management

+                                           Functional Descriptor).          */

+  USB_DESC_BYTE         (0x00),         /* bmCapabilities (D0+D1).          */

+  USB_DESC_BYTE         (0x01),         /* bDataInterface.                  */

+  /* ACM Functional Descriptor.*/

+  USB_DESC_BYTE         (4),            /* bFunctionLength.                 */

+  USB_DESC_BYTE         (0x24),         /* bDescriptorType (CS_INTERFACE).  */

+  USB_DESC_BYTE         (0x02),         /* bDescriptorSubtype (Abstract

+                                           Control Management Descriptor).  */

+  USB_DESC_BYTE         (0x02),         /* bmCapabilities.                  */

+  /* Union Functional Descriptor.*/

+  USB_DESC_BYTE         (5),            /* bFunctionLength.                 */

+  USB_DESC_BYTE         (0x24),         /* bDescriptorType (CS_INTERFACE).  */

+  USB_DESC_BYTE         (0x06),         /* bDescriptorSubtype (Union

+                                           Functional Descriptor).          */

+  USB_DESC_BYTE         (0x00),         /* bMasterInterface (Communication

+                                           Class Interface).                */

+  USB_DESC_BYTE         (0x01),         /* bSlaveInterface0 (Data Class

+                                           Interface).                      */

+  /* Endpoint 2 Descriptor.*/

+  USB_DESC_ENDPOINT     (USBD2_INTERRUPT_REQUEST_EP|0x80,

+                         0x03,          /* bmAttributes (Interrupt).        */

+                         0x0008,        /* wMaxPacketSize.                  */

+                         0xFF),         /* bInterval.                       */

+  /* Interface Descriptor.*/

+  USB_DESC_INTERFACE    (0x01,          /* bInterfaceNumber.                */

+                         0x00,          /* bAlternateSetting.               */

+                         0x02,          /* bNumEndpoints.                   */

+                         0x0A,          /* bInterfaceClass (Data Class

+                                           Interface, CDC section 4.5).     */

+                         0x00,          /* bInterfaceSubClass (CDC section

+                                           4.6).                            */

+                         0x00,          /* bInterfaceProtocol (CDC section

+                                           4.7).                            */

+                         0x00),         /* iInterface.                      */

+  /* Endpoint 3 Descriptor.*/

+  USB_DESC_ENDPOINT     (USBD2_DATA_AVAILABLE_EP,       /* bEndpointAddress.*/

+                         0x02,          /* bmAttributes (Bulk).             */

+                         0x0040,        /* wMaxPacketSize.                  */

+                         0x00),         /* bInterval.                       */

+  /* Endpoint 1 Descriptor.*/

+  USB_DESC_ENDPOINT     (USBD2_DATA_REQUEST_EP|0x80,    /* bEndpointAddress.*/

+                         0x02,          /* bmAttributes (Bulk).             */

+                         0x0040,        /* wMaxPacketSize.                  */

+                         0x00)          /* bInterval.                       */

+};

+

+/*

+ * Configuration Descriptor wrapper.

+ */

+static const USBDescriptor vcom_configuration_descriptor = {

+  sizeof vcom_configuration_descriptor_data,

+  vcom_configuration_descriptor_data

+};

+

+/*

+ * U.S. English language identifier.

+ */

+static const uint8_t vcom_string0[] = {

+  USB_DESC_BYTE(4),                     /* bLength.                         */

+  USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType.                 */

+  USB_DESC_WORD(0x0409)                 /* wLANGID (U.S. English).          */

+};

+

+/*

+ * Vendor string.

+ */

+static const uint8_t vcom_string1[] = {

+  USB_DESC_BYTE(38),                    /* bLength.                         */

+  USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType.                 */

+  'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,

+  'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,

+  'c', 0, 's', 0

+};

+

+/*

+ * Device Description string.

+ */

+static const uint8_t vcom_string2[] = {

+  USB_DESC_BYTE(56),                    /* bLength.                         */

+  USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType.                 */

+  'C', 0, 'h', 0, 'i', 0, 'b', 0, 'i', 0, 'O', 0, 'S', 0, '/', 0,

+  'R', 0, 'T', 0, ' ', 0, 'V', 0, 'i', 0, 'r', 0, 't', 0, 'u', 0,

+  'a', 0, 'l', 0, ' ', 0, 'C', 0, 'O', 0, 'M', 0, ' ', 0, 'P', 0,

+  'o', 0, 'r', 0, 't', 0

+};

+

+/*

+ * Serial Number string.

+ */

+static const uint8_t vcom_string3[] = {

+  USB_DESC_BYTE(8),                     /* bLength.                         */

+  USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType.                 */

+  '0' + CH_KERNEL_MAJOR, 0,

+  '0' + CH_KERNEL_MINOR, 0,

+  '0' + CH_KERNEL_PATCH, 0

+};

+

+/*

+ * Strings wrappers array.

+ */

+static const USBDescriptor vcom_strings[] = {

+  {sizeof vcom_string0, vcom_string0},

+  {sizeof vcom_string1, vcom_string1},

+  {sizeof vcom_string2, vcom_string2},

+  {sizeof vcom_string3, vcom_string3}

+};

+

+/*

+ * Handles the GET_DESCRIPTOR callback. All required descriptors must be

+ * handled here.

+ */

+static const USBDescriptor *get_descriptor(USBDriver *usbp,

+                                           uint8_t dtype,

+                                           uint8_t dindex,

+                                           uint16_t lang) {

+

+  (void)usbp;

+  (void)lang;

+  switch (dtype) {

+  case USB_DESCRIPTOR_DEVICE:

+    return &vcom_device_descriptor;

+  case USB_DESCRIPTOR_CONFIGURATION:

+    return &vcom_configuration_descriptor;

+  case USB_DESCRIPTOR_STRING:

+    if (dindex < 4)

+      return &vcom_strings[dindex];

+  }

+  return NULL;

+}

+

+/**

+ * @brief   IN EP1 state.

+ */

+static USBInEndpointState ep1instate;

+

+/**

+ * @brief   OUT EP1 state.

+ */

+static USBOutEndpointState ep1outstate;

+

+/**

+ * @brief   EP1 initialization structure (both IN and OUT).

+ */

+static const USBEndpointConfig ep1config = {

+  USB_EP_MODE_TYPE_BULK,

+  NULL,

+  sduDataTransmitted,

+  sduDataReceived,

+  0x0040,

+  0x0040,

+  &ep1instate,

+  &ep1outstate,

+  2,

+  NULL

+};

+

+/**

+ * @brief   IN EP2 state.

+ */

+static USBInEndpointState ep2instate;

+

+/**

+ * @brief   EP2 initialization structure (IN only).

+ */

+static const USBEndpointConfig ep2config = {

+  USB_EP_MODE_TYPE_INTR,

+  NULL,

+  sduInterruptTransmitted,

+  NULL,

+  0x0010,

+  0x0000,

+  &ep2instate,

+  NULL,

+  1,

+  NULL

+};

+

+/*

+ * Handles the USB driver global events.

+ */

+static void usb_event(USBDriver *usbp, usbevent_t event) {

+  extern SerialUSBDriver SDU1;

+

+  switch (event) {

+  case USB_EVENT_RESET:

+    return;

+  case USB_EVENT_ADDRESS:

+    return;

+  case USB_EVENT_CONFIGURED:

+    chSysLockFromISR();

+

+    /* Enables the endpoints specified into the configuration.

+       Note, this callback is invoked from an ISR so I-Class functions

+       must be used.*/

+    usbInitEndpointI(usbp, USBD2_DATA_REQUEST_EP, &ep1config);

+    usbInitEndpointI(usbp, USBD2_INTERRUPT_REQUEST_EP, &ep2config);

+

+    /* Resetting the state of the CDC subsystem.*/

+    sduConfigureHookI(&SDU1);

+

+    chSysUnlockFromISR();

+    return;

+  case USB_EVENT_SUSPEND:

+    return;

+  case USB_EVENT_WAKEUP:

+    return;

+  case USB_EVENT_STALLED:

+    return;

+  }

+  return;

+}

+

+/*

+ * USB driver configuration.

+ */

+const USBConfig usbcfg = {

+  usb_event,

+  get_descriptor,

+  sduRequestsHook,

+  NULL

+};

+

+/*

+ * Serial over USB driver configuration.

+ */

+const SerialUSBConfig serusbcfg = {

+  &USBD2,

+  USBD2_DATA_REQUEST_EP,

+  USBD2_DATA_AVAILABLE_EP,

+  USBD2_INTERRUPT_REQUEST_EP

+};

diff --git a/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/usbcfg.h b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/usbcfg.h
new file mode 100644
index 0000000..2ffaa17
--- /dev/null
+++ b/demos/STM32/RT-STM32F429-DISCOVERY-TRIBUF/usbcfg.h
@@ -0,0 +1,25 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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 _USBCFG_H_

+#define _USBCFG_H_

+

+extern const USBConfig usbcfg;

+extern SerialUSBConfig serusbcfg;

+

+#endif  /* _USBCFG_H_ */

+

+/** @} */

diff --git a/demos/various/RT-Win32-TriBuf/.cproject b/demos/various/RT-Win32-TriBuf/.cproject
new file mode 100644
index 0000000..f7198ab
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/.cproject
@@ -0,0 +1,50 @@
+<?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="0.759990224">

+			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="0.759990224" moduleId="org.eclipse.cdt.core.settings" name="Default">

+				<externalSettings/>

+				<extensions>

+					<extension id="org.eclipse.cdt.core.VCErrorParser" 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.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>

+					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>

+					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>

+					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>

+				</extensions>

+			</storageModule>

+			<storageModule moduleId="cdtBuildSystem" version="4.0.0">

+				<configuration artifactName="${ProjName}" buildProperties="" description="" id="0.759990224" name="Default" parent="org.eclipse.cdt.build.core.prefbase.cfg">

+					<folderInfo id="0.759990224." name="/" resourcePath="">

+						<toolChain id="org.eclipse.cdt.build.core.prefbase.toolchain.221916885" name="No ToolChain" resourceTypeBasedDiscovery="false" superClass="org.eclipse.cdt.build.core.prefbase.toolchain">

+							<targetPlatform id="org.eclipse.cdt.build.core.prefbase.toolchain.221916885.1754418474" name=""/>

+							<builder autoBuildTarget="all" cleanBuildTarget="clean" enableAutoBuild="false" enableCleanBuild="true" enabledIncrementalBuild="true" id="org.eclipse.cdt.build.core.settings.default.builder.978207162" incrementalBuildTarget="all" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="org.eclipse.cdt.build.core.settings.default.builder"/>

+							<tool id="org.eclipse.cdt.build.core.settings.holder.libs.1955256520" name="holder for library settings" superClass="org.eclipse.cdt.build.core.settings.holder.libs"/>

+							<tool id="org.eclipse.cdt.build.core.settings.holder.681446675" name="Assembly" superClass="org.eclipse.cdt.build.core.settings.holder">

+								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.2122537408" 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.2123891590" name="GNU C++" superClass="org.eclipse.cdt.build.core.settings.holder">

+								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.977304391" 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.1641835309" name="GNU C" superClass="org.eclipse.cdt.build.core.settings.holder">

+								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.1340673795" 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-Win32-TRIBUF.null.623541221" name="RT-Win32-TRIBUF"/>

+	</storageModule>

+	<storageModule moduleId="scannerConfiguration">

+		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>

+		<scannerConfigBuildInfo instanceId="0.759990224">

+			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="org.eclipse.cdt.make.core.GCCStandardMakePerProjectProfile"/>

+		</scannerConfigBuildInfo>

+	</storageModule>

+	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>

+	<storageModule moduleId="refreshScope"/>

+</cproject>

diff --git a/demos/various/RT-Win32-TriBuf/.gitignore b/demos/various/RT-Win32-TriBuf/.gitignore
new file mode 100644
index 0000000..dfbbe17
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/.gitignore
@@ -0,0 +1,9 @@
+*.origin

+*.swp

+*~

+.dep

+build

+*.o

+*.exe

+*.lst

+*.map
\ No newline at end of file
diff --git a/demos/various/RT-Win32-TriBuf/.project b/demos/various/RT-Win32-TriBuf/.project
new file mode 100644
index 0000000..1e168ca
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/.project
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<projectDescription>

+	<name>RT-Win32-TRIBUF</name>

+	<comment></comment>

+	<projects>

+	</projects>

+	<buildSpec>

+		<buildCommand>

+			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>

+			<triggers>clean,full,incremental,</triggers>

+			<arguments>

+			</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>

+	</natures>

+	<linkedResources>

+		<link>

+			<name>board</name>

+			<type>2</type>

+			<locationURI>CHIBIOS/os/hal/boards/simulator</locationURI>

+		</link>

+		<link>

+			<name>os</name>

+			<type>2</type>

+			<locationURI>CHIBIOS/os</locationURI>

+		</link>

+	</linkedResources>

+</projectDescription>

diff --git a/demos/various/RT-Win32-TriBuf/Makefile b/demos/various/RT-Win32-TriBuf/Makefile
new file mode 100644
index 0000000..8674226
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/Makefile
@@ -0,0 +1,151 @@
+#

+#       !!!! Do NOT edit this makefile with an editor which replace tabs by spaces !!!!

+#

+##############################################################################################

+#

+# On command line:

+#

+# make all = Create project

+#

+# make clean = Clean project files.

+#

+# To rebuild project do "make clean" and "make all".

+#

+

+##############################################################################################

+# Start of default section

+#

+

+TRGT = mingw32-

+CC   = $(TRGT)gcc

+AS   = $(TRGT)gcc -x assembler-with-cpp

+

+# List all default C defines here, like -D_DEBUG=1

+DDEFS = -DSIMULATOR

+

+# List all default ASM defines here, like -D_DEBUG=1

+DADEFS =

+

+# List all default directories to look for include files here

+DINCDIR =

+

+# List the default directory to look for the libraries here

+DLIBDIR =

+

+# List all default libraries here

+DLIBS = -lws2_32

+

+#

+# End of default section

+##############################################################################################

+

+##############################################################################################

+# Start of user section

+#

+

+# Define project name here

+PROJECT = ch

+

+# Define linker script file here

+LDSCRIPT =

+

+# List all user C define here, like -D_DEBUG=1

+UDEFS =

+

+# Define ASM defines here

+UADEFS =

+

+# Imported source files

+CHIBIOS = ../../../..

+include $(CHIBIOS)/os/hal/boards/simulator/board.mk

+include $(CHIBIOS)/os/hal/hal.mk

+include $(CHIBIOS)/os/hal/ports/simulator/win32/platform.mk

+include $(CHIBIOS)/os/hal/osal/rt/osal.mk

+include $(CHIBIOS)/os/rt/ports/SIMIA32/compilers/GCC/port.mk

+include $(CHIBIOS)/os/rt/rt.mk

+include $(CHIBIOS)/test/rt/test.mk

+

+# List C source files here

+SRC =  $(PORTSRC) \

+       $(KERNSRC) \

+       $(TESTSRC) \

+       $(HALSRC) \

+       $(OSALSRC) \

+       $(PLATFORMSRC) \

+       $(BOARDSRC) \

+       $(CHIBIOS)/community/os/various/tribuf.c \

+       main.c \

+       # eol

+

+# List ASM source files here

+ASRC =

+

+# List all user directories here

+UINCDIR = $(PORTINC) $(KERNINC) $(TESTINC) \

+          $(HALINC) $(OSALINC) $(PLATFORMINC) $(BOARDINC) \

+          $(CHIBIOS)/community/os/various/ \

+          # eol

+

+# List the user directory to look for the libraries here

+ULIBDIR =

+

+# List all user libraries here

+ULIBS =

+

+# Define optimisation level here

+OPT = -ggdb -O2

+

+#

+# End of user defines

+##############################################################################################

+

+INCDIR  = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))

+LIBDIR  = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))

+DEFS    = $(DDEFS) $(UDEFS)

+ADEFS   = $(DADEFS) $(UADEFS)

+OBJS    = $(ASRC:.s=.o) $(SRC:.c=.o)

+LIBS    = $(DLIBS) $(ULIBS)

+

+LDFLAGS = -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)

+ASFLAGS = -Wa,-amhls=$(<:.s=.lst) $(ADEFS)

+CPFLAGS = -Wall -Wextra -Wundef -Wstrict-prototypes -fverbose-asm -Wa,-alms=$(<:.c=.lst) $(DEFS)

+

+# Generate dependency information

+CPFLAGS += -MD -MP -MF .dep/$(@F).d

+

+#

+# makefile rules

+#

+

+all: $(OBJS) $(PROJECT).exe

+

+%.o : %.c

+	$(CC) -c $(OPT) $(CPFLAGS) -I . $(INCDIR) $< -o $@

+

+%.o : %.s

+	$(AS) -c $(OPT) $(ASFLAGS) $< -o $@

+

+%exe: $(OBJS)

+	$(CC) $(OPT) $(OBJS) $(LDFLAGS) $(LIBS) -o $@

+

+gcov:

+	-mkdir gcov

+	$(COV) -u $(subst /,\,$(SRC))

+	-mv *.gcov ./gcov

+

+clean:

+	-rm -f $(OBJS)

+	-rm -f $(PROJECT).exe

+	-rm -f $(PROJECT).map

+	-rm -f $(SRC:.c=.c.bak)

+	-rm -f $(SRC:.c=.lst)

+	-rm -f $(ASRC:.s=.s.bak)

+	-rm -f $(ASRC:.s=.lst)

+	-rm -fR .dep

+

+#

+# Include the dependency files, should be the last of the makefile

+#

+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)

+

+# *** EOF ***

diff --git a/demos/various/RT-Win32-TriBuf/chconf.h b/demos/various/RT-Win32-TriBuf/chconf.h
new file mode 100644
index 0000000..835d59b
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/chconf.h
@@ -0,0 +1,502 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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_

+

+/*===========================================================================*/

+/**

+ * @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 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                 0x20000

+

+/**

+ * @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                       TRUE

+

+/**

+ * @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                  FALSE

+

+/**

+ * @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                 FALSE

+

+/**

+ * @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                   FALSE

+

+/**

+ * @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                 FALSE

+

+/**

+ * @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                FALSE

+

+/**

+ * @brief   I/O Queues APIs.

+ * @details If enabled then the I/O queues APIs are included in the kernel.

+ *

+ * @note    The default is @p TRUE.

+ */

+#define CH_CFG_USE_QUEUES                   FALSE

+

+/**

+ * @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                 FALSE

+

+/**

+ * @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 Debug options

+ * @{

+ */

+/*===========================================================================*/

+

+/**

+ * @brief   Debug option, kernel statistics.

+ *

+ * @note    The default is @p FALSE.

+ */

+#define CH_DBG_STATISTICS                   TRUE

+

+/**

+ * @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 context switch circular trace buffer is

+ *          activated.

+ *

+ * @note    The default is @p FALSE.

+ */

+#define CH_DBG_ENABLE_TRACE                 TRUE

+

+/**

+ * @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            TRUE

+

+/** @} */

+

+/*===========================================================================*/

+/**

+ * @name Kernel hooks

+ * @{

+ */

+/*===========================================================================*/

+

+/**

+ * @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 chThdInit() API.

+ *

+ * @note    It is invoked from within @p chThdInit() 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.

+ *

+ * @note    It is inserted into lock zone.

+ * @note    It is also invoked when the threads simply return in order to

+ *          terminate.

+ */

+#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   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() {                                          \

+}

+

+/**

+ * @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() {                                          \

+}

+

+/**

+ * @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.*/                                               \

+  halt(reason); \

+}

+

+/** @} */

+

+/*===========================================================================*/

+/* Port-specific settings (override port settings defaulted in chcore.h).    */

+/*===========================================================================*/

+

+void halt(const char *reason);

+

+#endif  /* _CHCONF_H_ */

+

+/** @} */

diff --git a/demos/various/RT-Win32-TriBuf/halconf.h b/demos/various/RT-Win32-TriBuf/halconf.h
new file mode 100644
index 0000000..286864b
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/halconf.h
@@ -0,0 +1,326 @@
+/*

+    ChibiOS - Copyright (C) 2006..2015 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 TM subsystem.

+ */

+#if !defined(HAL_USE_TM) || defined(__DOXYGEN__)

+#define HAL_USE_TM                  FALSE

+#endif

+

+/**

+ * @brief   Enables the PAL subsystem.

+ */

+#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)

+#define HAL_USE_PAL                 FALSE

+#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 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                 FALSE

+#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 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              FALSE

+#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

+

+/*===========================================================================*/

+/* 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

+

+/*===========================================================================*/

+/* 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 64 bytes for both the transmission and receive

+ *          buffers.

+ */

+#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)

+#define SERIAL_BUFFERS_SIZE         32

+#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

+

+#endif /* _HALCONF_H_ */

+

+/** @} */

diff --git a/demos/various/RT-Win32-TriBuf/main.c b/demos/various/RT-Win32-TriBuf/main.c
new file mode 100644
index 0000000..bab25cd
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/main.c
@@ -0,0 +1,171 @@
+/*

+    Copyright (C) 2015 Andrea Zoppi

+

+    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 "tribuf.h"

+

+#include <stdio.h>

+#include <stdlib.h>

+

+/*===========================================================================*/

+/* TriBuf related.                                                           */

+/*===========================================================================*/

+

+#define WRITER_DELAY_MS        10

+#define READER_DELAY_MS        20

+

+#define WRITER_STACK_SIZE   4096

+#define READER_STACK_SIZE   4096

+

+#define WRITER_PRIORITY     (NORMALPRIO + 1)

+#define READER_PRIORITY     (NORMALPRIO + 2)

+

+static thread_t *writertp;

+static thread_t *readertp;

+

+static tribuf_t tribuf;

+static char buffers[3];

+

+static const char text[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ\r\n";

+

+/*

+ * Reads from the front buffer.

+ */

+static char read_front(void) {

+

+  const char *front;

+  msg_t error;

+

+  /* Wait until a new front buffer gets available with prepared data */

+  error = tribufWaitReadyTimeout(&tribuf, MS2ST(1000));

+  if (error == MSG_TIMEOUT)

+    chSysHalt("ERROR: read_front() timed out");

+

+  /* Retrieve the new front buffer */

+  tribufSwapFront(&tribuf);

+  front = (const char *)tribufGetFront(&tribuf);

+

+  /* Read data from the new front buffer */

+  return front[0];

+}

+

+/*

+ * Overwrites the back buffer with the provided character.

+ */

+static void write_back(char c) {

+

+  char *back;

+

+  /* Retrieve the current back buffer */

+  back = (char *)tribufGetBack(&tribuf);

+

+  /* Prepare data onto the current back buffer */

+  back[0] = c;

+

+  /* Exchange the prepared buffer with a new one */

+  tribufSwapBack(&tribuf);

+}

+

+/*

+ * Overwrites the back buffer with a fixed text, character by character.

+ */

+static THD_WORKING_AREA(writer_wa, WRITER_STACK_SIZE);

+static THD_FUNCTION(writer_thread, arg) {

+

+  const uint32_t delay = (uint32_t)(msg_t)arg;

+  size_t i;

+  char c;

+

+  chRegSetThreadName("writer_thread");

+  for (;;) {

+    for (i = 0; i < sizeof(text); ++i) {

+      c = text[i];

+      write_back(c);

+      chThdSleepMilliseconds(delay);

+    }

+  }

+}

+

+/*

+ * Reads the front buffer and prints it.

+ */

+static THD_WORKING_AREA(reader_wa, READER_STACK_SIZE);

+static THD_FUNCTION(reader_thread, arg) {

+

+  const uint32_t delay = (uint32_t)(msg_t)arg;

+  char c;

+

+  chRegSetThreadName("reader_thread");

+  for (;;) {

+    c = read_front();

+    fprintf(stdout, "%c", c);

+    chThdSleepMilliseconds(delay);

+  }

+}

+

+/*===========================================================================*/

+/* Initialization and main thread.                                           */

+/*===========================================================================*/

+

+/*

+ * Simulator main.

+ */

+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();

+

+  /*

+   * Writer and reader threads started for triple buffer demo.

+   */

+  tribufObjectInit(&tribuf, &buffers[0], &buffers[1], &buffers[2]);

+

+  readertp = chThdCreateStatic(reader_wa, sizeof(reader_wa),

+                               READER_PRIORITY,

+                               reader_thread, (void *)READER_DELAY_MS);

+

+  writertp = chThdCreateStatic(writer_wa, sizeof(writer_wa),

+                               WRITER_PRIORITY,

+                               writer_thread, (void *)WRITER_DELAY_MS);

+

+  /*

+   * Let the threads process data.

+   */

+  for (;;)

+    chThdSleepMilliseconds(1000);

+

+  return 0;

+}

+

+/*

+ * Critical error function.

+ */

+void halt(const char *reason) {

+

+  fflush(stdout);

+  fputs("\n", stdout);

+  fputs(reason, stderr);

+  fflush(stderr);

+  exit(1);

+}

diff --git a/demos/various/RT-Win32-TriBuf/readme.txt b/demos/various/RT-Win32-TriBuf/readme.txt
new file mode 100644
index 0000000..e72e2e0
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/readme.txt
@@ -0,0 +1,33 @@
+*****************************************************************************

+** ChibiOS/RT port for x86 into a Win32 process                            **

+*****************************************************************************

+

+** TARGET **

+

+The demo runs under any Windows version as an application program. The serial

+I/O is simulated over TCP/IP sockets.

+

+** The Demo **

+

+The demo listens on the two serial ports, when a connection is detected a

+thread is started that serves a small command shell.

+The demo shows how to create/terminate threads at runtime, how to listen to

+events, how to work with serial ports, how to use the messages.

+You can develop your ChibiOS/RT application using this demo as a simulator

+then you can recompile it for a different architecture.

+See demo.c for details.

+

+** Build Procedure **

+

+The demo was built using the MinGW toolchain.

+

+** Connect to the demo **

+

+In order to connect to the demo a telnet client is required. A good choice

+is PuTTY:

+

+http://www.putty.org/

+

+Host Name: 127.0.0.1

+Port: 29001 and/or 29002

+Connection Type: Raw

diff --git a/demos/various/RT-Win32-TriBuf/run.bat b/demos/various/RT-Win32-TriBuf/run.bat
new file mode 100644
index 0000000..5d697c5
--- /dev/null
+++ b/demos/various/RT-Win32-TriBuf/run.bat
@@ -0,0 +1,2 @@
+ch.exe

+PAUSE

diff --git a/os/various/tribuf.c b/os/various/tribuf.c
new file mode 100644
index 0000000..80eb258
--- /dev/null
+++ b/os/various/tribuf.c
@@ -0,0 +1,214 @@
+/*

+    Copyright (C) 2014..2015 Andrea Zoppi

+

+    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 "osal.h"

+#include "tribuf.h"

+

+/**

+ * @file    tribuf.c

+ * @brief   Triple buffer handler source.

+ *

+ * @addtogroup TriBuf

+ * @{

+ */

+

+/*===========================================================================*/

+/* Driver local definitions.                                                 */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver exported variables.                                                */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver local variables and types.                                         */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver local functions.                                                   */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver interrupt handlers.                                                */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver exported functions.                                                */

+/*===========================================================================*/

+

+/**

+ * @brief   Initializes the tribuf handler object.

+ *

+ * @param[in] handler Pointer to the tribuf handler object.

+ * @param[in] front   Pointer to the initial front buffer.

+ * @param[in] back    Pointer to the initial back buffer.

+ * @param[in] orphan  Pointer to the initial orphan buffer.

+ *

+ * @init

+ */

+void tribufObjectInit(tribuf_t *handler, void *front, void *back, void *orphan) {

+

+  handler->front = front;

+  handler->back = back;

+  handler->orphan = orphan;

+#if (TRIBUF_USE_WAIT == TRUE)

+  chSemObjectInit(&handler->ready, (cnt_t)0);

+#else

+  handler->ready = false;

+#endif

+}

+

+/**

+ * @brief   Gets the current front buffer.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return  Pointer to the current front buffer.

+ *

+ * @api

+ */

+void *tribufGetFront(tribuf_t *handler) {

+

+  void *front;

+

+  osalSysLock();

+  front = tribufGetFrontI(handler);

+  osalSysUnlock();

+  return front;

+}

+

+/**

+ * @brief   Swaps the current front buffer.

+ *

+ * @details Exchanges the pointer of the current front buffer, which will be

+ *          dismissed, with the pointer of the current orphan buffer, which

+ *          holds the content of the new front buffer.

+ *

+ * @pre   The orphan buffer holds new data, swapped by the back buffer.

+ * @pre   The fron buffer is ready for swap.

+ * @post  The orphan buffer can be used as new back buffer in the future.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ *

+ * @iclass

+ */

+void tribufSwapFrontI(tribuf_t *handler) {

+

+  void *front;

+

+  osalDbgCheckClassI();

+

+  front = handler->orphan;

+  handler->orphan = handler->front;

+  handler->front = front;

+}

+

+/**

+ * @brief   Swaps the current front buffer.

+ *

+ * @details Exchanges the pointer of the current front buffer, which will be

+ *          dismissed, with the pointer of the current orphan buffer, which

+ *          holds the content of the new front buffer.

+ *

+ * @pre   The orphan buffer holds new data, swapped by the back buffer.

+ * @pre   The fron buffer is ready for swap.

+ * @post  The orphan buffer can be used as new back buffer in the future.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ *

+ * @api

+ */

+void tribufSwapFront(tribuf_t *handler) {

+

+  osalSysLock();

+  tribufSwapFrontI(handler);

+  osalSysUnlock();

+}

+

+/**

+ * @brief   Gets the current back buffer.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return Pointer to the current back buffer.

+ *

+ * @api

+ */

+void *tribufGetBack(tribuf_t *handler) {

+

+  void *back;

+

+  osalSysLock();

+  back = tribufGetBackI(handler);

+  osalSysUnlock();

+  return back;

+}

+

+/**

+ * @brief   Swaps the current back buffer.

+ *

+ * @details Exchanges the pointer of the current back buffer, which holds new

+ *          useful data, with the pointer of the current orphan buffer.

+ *

+ * @pre   The orphan buffer holds no meaningful data.

+ * @post  The orphan buffer is candidate for new front buffer.

+ * @post  A new front buffer is ready and signaled.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ *

+ * @iclass

+ */

+void tribufSwapBackI(tribuf_t *handler) {

+

+  void *back;

+

+  osalDbgCheckClassI();

+

+  back = handler->orphan;

+  handler->orphan = handler->back;

+  handler->back = back;

+

+#if (TRIBUF_USE_WAIT == TRUE)

+  if (chSemGetCounterI(&handler->ready) < (cnt_t)1)

+    chSemSignalI(&handler->ready);

+#else

+  handler->ready = true;

+#endif

+}

+

+/**

+ * @brief   Swaps the current back buffer.

+ *

+ * @details Exchanges the pointer of the current back buffer, which holds new

+ *          useful data, with the pointer of the current orphan buffer.

+ *

+ * @pre   The orphan buffer holds no meaningful data.

+ * @post  The orphan buffer is candidate for new front buffer.

+ * @post  A new front buffer is ready and signaled.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ *

+ * @api

+ */

+void tribufSwapBack(tribuf_t *handler) {

+

+  osalSysLock();

+  tribufSwapBackI(handler);

+#if (TRIBUF_USE_WAIT == TRUE)

+  osalOsRescheduleS();

+#endif

+  osalSysUnlock();

+}

+

+/** @} */

diff --git a/os/various/tribuf.h b/os/various/tribuf.h
new file mode 100644
index 0000000..4ba3f25
--- /dev/null
+++ b/os/various/tribuf.h
@@ -0,0 +1,225 @@
+/*

+    Copyright (C) 2014..2015 Andrea Zoppi

+

+    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    tribuf.h

+ * @brief   Triple buffer handler header.

+ *

+ * @addtogroup TriBuf

+ * @{

+ */

+

+#ifndef _TRIBUF_H_

+#define _TRIBUF_H_

+

+/*===========================================================================*/

+/* Driver constants.                                                         */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver pre-compile time settings.                                         */

+/*===========================================================================*/

+

+/**

+ * @name    Triple buffer configuration options

+ * @{

+ */

+

+/**

+ * @brief   Triple buffers use blocking functions.

+ */

+#if !defined(TRIBUF_USE_WAIT) || defined(__DOXYGEN__)

+#define TRIBUF_USE_WAIT       TRUE

+#endif

+

+/** @} */

+

+/*===========================================================================*/

+/* Derived constants and error checks.                                       */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver data structures and types.                                         */

+/*===========================================================================*/

+

+/**

+ * @brief   Triple buffer handler object.

+ */

+typedef struct {

+  void *front;                /**< @brief Current front buffer pointer.*/

+  void *back;                 /**< @brief Current back buffer pointer.*/

+  void *orphan;               /**< @brief Current orphan buffer pointer.*/

+#if (TRIBUF_USE_WAIT == TRUE)

+  semaphore_t ready;          /**< @brief A new front buffer is ready.*/

+#else

+  bool ready;                 /**< @brief A new front buffer is ready.*/

+#endif

+} tribuf_t;

+

+/*===========================================================================*/

+/* Driver macros.                                                            */

+/*===========================================================================*/

+

+/**

+ * @brief   Checks if a new front buffer is ready.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return  Availability of a new front buffer.

+ *

+ * @iclass

+ */

+static inline

+bool tribufIsReadyI(tribuf_t *handler)

+{

+  osalDbgCheckClassI();

+

+#if (TRIBUF_USE_WAIT == TRUE)

+  return (0 != chSemGetCounterI(&handler->ready));

+#else

+  return handler->ready;

+#endif

+}

+

+#if (TRIBUF_USE_WAIT == TRUE) || defined(__DOXYGEN__)

+

+/**

+ * @brief   Waits until a new front buffer is ready, with timeout.

+ *

+ * @post  The ready signal, result of the back buffer swap, is consumed.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @param[in] timeout   Timeout of the wait operation.

+ * @return  Timeout error code, as from @p chSemWaitTimeoutS.

+ *

+ * @see chSemWaitTimeoutS

+ * @sclass

+ */

+static inline

+msg_t tribufWaitReadyTimeoutS(tribuf_t *handler, systime_t timeout)

+{

+  osalDbgCheckClassS();

+

+  return chSemWaitTimeoutS(&handler->ready, timeout);

+}

+

+/**

+ * @brief   Waits until a new front buffer is ready, with timeout.

+ *

+ * @post  The ready signal, result of the back buffer swap, is consumed.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @param[in] timeout   Timeout of the wait operation.

+ * @return  Timeout error code, as from @p chSemWaitTimeout.

+ *

+ * @see chSemWaitTimeout

+ * @api

+ */

+static inline

+msg_t tribufWaitReadyTimeout(tribuf_t *handler, systime_t timeout)

+{

+  return chSemWaitTimeout(&handler->ready, timeout);

+}

+

+/**

+ * @brief   Waits until a new front buffer is ready.

+ *

+ * @post  The ready signal, result of the back buffer swap, is consumed.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return  Timeout error code, as from @p chSemWaitS.

+ *

+ * @see chSemWaitS

+ * @sclass

+ */

+static inline

+void tribufWaitReadyS(tribuf_t *handler)

+{

+  osalDbgCheckClassS();

+

+  chSemWaitS(&handler->ready);

+}

+

+/**

+ * @brief   Waits until a new front buffer is ready.

+ *

+ * @post  The ready signal, result of the back buffer swap, is consumed.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return  Timeout error code, as from @p chSemWait.

+ *

+ * @see chSemWait

+ * @api

+ */

+static inline

+void tribufWaitReady(tribuf_t *handler)

+{

+  chSemWait(&handler->ready);

+}

+

+#endif  /* (TRIBUF_USE_WAIT == TRUE) || defined(__DOXYGEN__) */

+

+/**

+ * @brief   Gets the current front buffer.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return  Pointer to the current front buffer.

+ *

+ * @iclass

+ */

+static inline

+void *tribufGetFrontI(tribuf_t *handler) {

+

+  osalDbgCheckClassI();

+

+  return handler->front;

+}

+

+/**

+ * @brief   Gets the current back buffer.

+ *

+ * @param[in] handler   Pointer to the tribuf handler object.

+ * @return  Pointer to the current back buffer.

+ *

+ * @iclass

+ */

+static inline

+void *tribufGetBackI(tribuf_t *handler) {

+

+  osalDbgCheckClassI();

+

+  return handler->back;

+}

+

+/*===========================================================================*/

+/* External declarations.                                                    */

+/*===========================================================================*/

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void tribufObjectInit(tribuf_t *handler, void *front, void *back, void *orphan);

+  void *tribufGetFront(tribuf_t *handler);

+  void tribufSwapFrontI(tribuf_t *handler);

+  void tribufSwapFront(tribuf_t *handler);

+  void *tribufGetBack(tribuf_t *handler);

+  void tribufSwapBackI(tribuf_t *handler);

+  void tribufSwapBack(tribuf_t *handler);

+#ifdef __cplusplus

+}

+#endif

+

+#endif  /* _TRIBUF_H_ */

+/** @} */