diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/.cproject b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/.cproject
new file mode 100644
index 000000000..43d91937e
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/.cproject
@@ -0,0 +1,56 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/.project b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/.project
new file mode 100644
index 000000000..afee97a63
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/.project
@@ -0,0 +1,58 @@
+
+
+ RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC
+
+
+
+
+
+ org.eclipse.cdt.managedbuilder.core.genmakebuilder
+ clean,full,incremental,
+
+
+
+
+ org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder
+ full,incremental,
+
+
+
+
+
+ org.eclipse.cdt.core.cnature
+ org.eclipse.cdt.managedbuilder.core.managedBuildNature
+ org.eclipse.cdt.managedbuilder.core.ScannerConfigNature
+
+
+
+ board
+ 2
+ CHIBIOS/os/hal/boards/ST_NUCLEO64_G474RE
+
+
+ fatfs
+ 2
+ CHIBIOS/ext/fatfs
+
+
+ os
+ 2
+ CHIBIOS/os
+
+
+ test
+ 2
+ virtual:/virtual
+
+
+ test/oslib
+ 2
+ CHIBIOS/test/oslib
+
+
+ test/rt
+ 2
+ CHIBIOS/test/rt
+
+
+
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/Makefile b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/Makefile
new file mode 100644
index 000000000..22d328552
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/Makefile
@@ -0,0 +1,198 @@
+##############################################################################
+# Build global options
+# NOTE: Can be overridden externally.
+#
+
+# Compiler options here.
+ifeq ($(USE_OPT),)
+ USE_OPT = -O0 -ggdb -fomit-frame-pointer -falign-functions=16
+endif
+
+# C specific options here (added to USE_OPT).
+ifeq ($(USE_COPT),)
+ USE_COPT =
+endif
+
+# C++ specific options here (added to USE_OPT).
+ifeq ($(USE_CPPOPT),)
+ USE_CPPOPT = -fno-rtti
+endif
+
+# Enable this if you want the linker to remove unused code and data.
+ifeq ($(USE_LINK_GC),)
+ USE_LINK_GC = yes
+endif
+
+# Linker extra options here.
+ifeq ($(USE_LDOPT),)
+ USE_LDOPT =
+endif
+
+# Enable this if you want link time optimizations (LTO).
+ifeq ($(USE_LTO),)
+ USE_LTO = yes
+endif
+
+# 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 (no, softfp, hard).
+ifeq ($(USE_FPU),)
+ USE_FPU = no
+endif
+
+# FPU-related options.
+ifeq ($(USE_FPU_OPT),)
+ USE_FPU_OPT = -mfloat-abi=$(USE_FPU) -mfpu=fpv4-sp-d16
+endif
+
+#
+# Architecture or project specific options
+##############################################################################
+
+##############################################################################
+# Project, target, sources and paths
+#
+
+# Define project name here
+PROJECT = ch
+
+# Target settings.
+MCU = cortex-m4
+
+# Imported source files and paths.
+CHIBIOS := ../../..
+CONFDIR := ./cfg
+BUILDDIR := ./build
+DEPDIR := ./.dep
+
+# Licensing files.
+include $(CHIBIOS)/os/license/license.mk
+# Common files.
+include $(CHIBIOS)/os/common/utils/utils.mk
+# Startup files.
+include $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_stm32l4xx.mk
+# HAL-OSAL files (optional).
+include $(CHIBIOS)/os/hal/hal.mk
+include $(CHIBIOS)/os/hal/ports/STM32/STM32L4xx+/platform.mk
+include $(CHIBIOS)/os/hal/boards/ST_STM32L4R9I_DISCOVERY/board.mk
+include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk
+# RTOS files (optional).
+include $(CHIBIOS)/os/rt/rt.mk
+include $(CHIBIOS)/os/common/ports/ARMv7-M-ALT/compilers/GCC/mk/port.mk
+include $(CHIBIOS)/os/sb/host/compilers/GCC/sbhost.mk
+# VFS files (optional).
+include $(CHIBIOS)/os/vfs/vfs.mk
+include $(CHIBIOS)/os/vfs/vfs_syscalls.mk
+# Auto-build files in ./source recursively.
+include $(CHIBIOS)/tools/mk/autobuild.mk
+# Other files (optional).
+include $(CHIBIOS)/os/test/test.mk
+include $(CHIBIOS)/test/rt/rt_test.mk
+include $(CHIBIOS)/test/oslib/oslib_test.mk
+include $(CHIBIOS)/os/hal/lib/streams/streams.mk
+include $(CHIBIOS)/os/various/shell/shell.mk
+include $(CHIBIOS)/os/various/fatfs_bindings/fatfs.mk
+
+# Define linker script file here
+LDSCRIPT= ./STM32L4R9xI_SB.ld
+
+# C sources that can be compiled in ARM or THUMB mode depending on the global
+# setting.
+CSRC = $(ALLCSRC) \
+ $(TESTSRC) \
+ main.c
+
+# C++ sources that can be compiled in ARM or THUMB mode depending on the global
+# setting.
+CPPSRC = $(ALLCPPSRC)
+
+# List ASM source files here.
+ASMSRC = $(ALLASMSRC)
+
+# List ASM with preprocessor source files here.
+ASMXSRC = $(ALLXASMSRC)
+
+# Inclusion directories.
+INCDIR = $(CONFDIR) $(ALLINC) $(TESTINC)
+
+# Define C warning options here.
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes -Wcast-align=strict
+
+# Define C++ warning options here.
+CPPWARN = -Wall -Wextra -Wundef
+
+#
+# Project, target, sources and paths
+##############################################################################
+
+##############################################################################
+# 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 section
+##############################################################################
+
+##############################################################################
+# Common rules
+#
+
+RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk
+include $(RULESPATH)/arm-none-eabi.mk
+include $(RULESPATH)/rules.mk
+
+#
+# Common rules
+##############################################################################
+
+##############################################################################
+# Custom rules
+#
+
+#
+# Custom rules
+##############################################################################
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/STM32L4R9xI_SB.ld b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/STM32L4R9xI_SB.ld
new file mode 100644
index 000000000..27f6c7a03
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/STM32L4R9xI_SB.ld
@@ -0,0 +1,85 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/*
+ * STM32L4R9xI memory setup.
+ */
+MEMORY
+{
+ flash0 (rx) : org = 0x08000000, len = 2M /* Host code. */
+ flash1 (rx) : org = 0x00000000, len = 0
+ flash2 (rx) : org = 0x00000000, len = 0
+ flash3 (rx) : org = 0x00000000, len = 0
+ flash4 (rx) : org = 0x00000000, len = 0
+ flash5 (rx) : org = 0x00000000, len = 0
+ flash6 (rx) : org = 0x00000000, len = 0
+ flash7 (rx) : org = 0x00000000, len = 0
+ ram0 (wx) : org = 0x20000000, len = 640k - 256k /* Host data. */
+ ram1 (wx) : org = 0x20060000, len = 128k /* Sandbox 1. */
+ ram2 (wx) : org = 0x20080000, len = 128k /* Sandbox 2. */
+ ram3 (wx) : org = 0x00000000, len = 0
+ ram4 (wx) : org = 0x00000000, len = 0
+ ram5 (wx) : org = 0x00000000, len = 0
+ ram6 (wx) : org = 0x00000000, len = 0
+ ram7 (wx) : org = 0x00000000, len = 0
+}
+
+/* For each data/text section two region are defined, a virtual region
+ and a load region (_LMA suffix).*/
+
+/* Flash region to be used for exception vectors.*/
+REGION_ALIAS("VECTORS_FLASH", flash0);
+REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for constructors and destructors.*/
+REGION_ALIAS("XTORS_FLASH", flash0);
+REGION_ALIAS("XTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for code text.*/
+REGION_ALIAS("TEXT_FLASH", flash0);
+REGION_ALIAS("TEXT_FLASH_LMA", flash0);
+
+/* Flash region to be used for read only data.*/
+REGION_ALIAS("RODATA_FLASH", flash0);
+REGION_ALIAS("RODATA_FLASH_LMA", flash0);
+
+/* Flash region to be used for various.*/
+REGION_ALIAS("VARIOUS_FLASH", flash0);
+REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
+
+/* Flash region to be used for RAM(n) initialization data.*/
+REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
+
+/* RAM region to be used for Main stack. This stack accommodates the processing
+ of all exceptions and interrupts.*/
+REGION_ALIAS("MAIN_STACK_RAM", ram0);
+
+/* RAM region to be used for the process stack. This is the stack used by
+ the main() function.*/
+REGION_ALIAS("PROCESS_STACK_RAM", ram0);
+
+/* RAM region to be used for data segment.*/
+REGION_ALIAS("DATA_RAM", ram0);
+REGION_ALIAS("DATA_RAM_LMA", flash0);
+
+/* RAM region to be used for BSS segment.*/
+REGION_ALIAS("BSS_RAM", ram0);
+
+/* RAM region to be used for the default heap.*/
+REGION_ALIAS("HEAP_RAM", ram0);
+
+/* Generic rules inclusion.*/
+INCLUDE rules.ld
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/chconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/chconf.h
new file mode 100644
index 000000000..86e033771
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/chconf.h
@@ -0,0 +1,843 @@
+/*
+ ChibiOS - Copyright (C) 2006..2020 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 rt/templates/chconf.h
+ * @brief Configuration file template.
+ * @details A copy of this file must be placed in each project directory, it
+ * contains the application specific kernel settings.
+ *
+ * @addtogroup config
+ * @details Kernel related settings and hooks.
+ * @{
+ */
+
+#ifndef CHCONF_H
+#define CHCONF_H
+
+#define _CHIBIOS_RT_CONF_
+#define _CHIBIOS_RT_CONF_VER_7_0_
+
+/*===========================================================================*/
+/**
+ * @name System settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Handling of instances.
+ * @note If enabled then threads assigned to various instances can
+ * interact each other using the same synchronization objects.
+ * If disabled then each OS instance is a separate world, no
+ * direct interactions are handled by the OS.
+ */
+#if !defined(CH_CFG_SMP_MODE)
+#define CH_CFG_SMP_MODE FALSE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name System timers settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief System time counter resolution.
+ * @note Allowed values are 16, 32 or 64 bits.
+ */
+#if !defined(CH_CFG_ST_RESOLUTION)
+#define CH_CFG_ST_RESOLUTION 32
+#endif
+
+/**
+ * @brief System tick frequency.
+ * @details Frequency of the system timer that drives the system ticks. This
+ * setting also defines the system tick time unit.
+ */
+#if !defined(CH_CFG_ST_FREQUENCY)
+#define CH_CFG_ST_FREQUENCY 10000
+#endif
+
+/**
+ * @brief Time intervals data size.
+ * @note Allowed values are 16, 32 or 64 bits.
+ */
+#if !defined(CH_CFG_INTERVALS_SIZE)
+#define CH_CFG_INTERVALS_SIZE 32
+#endif
+
+/**
+ * @brief Time types data size.
+ * @note Allowed values are 16 or 32 bits.
+ */
+#if !defined(CH_CFG_TIME_TYPES_SIZE)
+#define CH_CFG_TIME_TYPES_SIZE 32
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_ST_TIMEDELTA)
+#define CH_CFG_ST_TIMEDELTA 2
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_TIME_QUANTUM)
+#define CH_CFG_TIME_QUANTUM 0
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_NO_IDLE_THREAD)
+#define CH_CFG_NO_IDLE_THREAD FALSE
+#endif
+
+/**
+ * @brief Kernel hardening level.
+ * @details This option is the level of functional-safety checks enabled
+ * in the kerkel. The meaning is:
+ * - 0: No checks, maximum performance.
+ * - 1: Reasonable checks.
+ * - 2: All checks.
+ * .
+ */
+#if !defined(CH_CFG_HARDENING_LEVEL)
+#define CH_CFG_HARDENING_LEVEL 0
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_OPTIMIZE_SPEED)
+#define CH_CFG_OPTIMIZE_SPEED TRUE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_TM)
+#define CH_CFG_USE_TM TRUE
+#endif
+
+/**
+ * @brief Time Stamps APIs.
+ * @details If enabled then the time stamps APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_TIMESTAMP)
+#define CH_CFG_USE_TIMESTAMP TRUE
+#endif
+
+/**
+ * @brief Threads registry APIs.
+ * @details If enabled then the registry APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_REGISTRY)
+#define CH_CFG_USE_REGISTRY TRUE
+#endif
+
+/**
+ * @brief Threads synchronization APIs.
+ * @details If enabled then the @p chThdWait() function is included in
+ * the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_WAITEXIT)
+#define CH_CFG_USE_WAITEXIT TRUE
+#endif
+
+/**
+ * @brief Semaphores APIs.
+ * @details If enabled then the Semaphores APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_SEMAPHORES)
+#define CH_CFG_USE_SEMAPHORES TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_SEMAPHORES_PRIORITY)
+#define CH_CFG_USE_SEMAPHORES_PRIORITY FALSE
+#endif
+
+/**
+ * @brief Mutexes APIs.
+ * @details If enabled then the mutexes APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_MUTEXES)
+#define CH_CFG_USE_MUTEXES TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_MUTEXES_RECURSIVE)
+#define CH_CFG_USE_MUTEXES_RECURSIVE FALSE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_CONDVARS)
+#define CH_CFG_USE_CONDVARS TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_CONDVARS_TIMEOUT)
+#define CH_CFG_USE_CONDVARS_TIMEOUT TRUE
+#endif
+
+/**
+ * @brief Events Flags APIs.
+ * @details If enabled then the event flags APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_EVENTS)
+#define CH_CFG_USE_EVENTS TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_EVENTS_TIMEOUT)
+#define CH_CFG_USE_EVENTS_TIMEOUT TRUE
+#endif
+
+/**
+ * @brief Synchronous Messages APIs.
+ * @details If enabled then the synchronous messages APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_MESSAGES)
+#define CH_CFG_USE_MESSAGES TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_MESSAGES_PRIORITY)
+#define CH_CFG_USE_MESSAGES_PRIORITY FALSE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_DYNAMIC)
+#define CH_CFG_USE_DYNAMIC TRUE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name OSLIB options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_MAILBOXES)
+#define CH_CFG_USE_MAILBOXES TRUE
+#endif
+
+/**
+ * @brief Memory checks APIs.
+ * @details If enabled then the memory checks APIs are included in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_MEMCHECKS)
+#define CH_CFG_USE_MEMCHECKS TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_MEMCORE)
+#define CH_CFG_USE_MEMCORE TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_MEMCORE_SIZE)
+#define CH_CFG_MEMCORE_SIZE 0
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_HEAP)
+#define CH_CFG_USE_HEAP TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_CFG_USE_MEMPOOLS)
+#define CH_CFG_USE_MEMPOOLS TRUE
+#endif
+
+/**
+ * @brief Objects FIFOs APIs.
+ * @details If enabled then the objects FIFOs APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_OBJ_FIFOS)
+#define CH_CFG_USE_OBJ_FIFOS TRUE
+#endif
+
+/**
+ * @brief Pipes APIs.
+ * @details If enabled then the pipes APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_PIPES)
+#define CH_CFG_USE_PIPES TRUE
+#endif
+
+/**
+ * @brief Objects Caches APIs.
+ * @details If enabled then the objects caches APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_OBJ_CACHES)
+#define CH_CFG_USE_OBJ_CACHES TRUE
+#endif
+
+/**
+ * @brief Delegate threads APIs.
+ * @details If enabled then the delegate threads APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_DELEGATES)
+#define CH_CFG_USE_DELEGATES TRUE
+#endif
+
+/**
+ * @brief Jobs Queues APIs.
+ * @details If enabled then the jobs queues APIs are included
+ * in the kernel.
+ *
+ * @note The default is @p TRUE.
+ */
+#if !defined(CH_CFG_USE_JOBS)
+#define CH_CFG_USE_JOBS TRUE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Objects factory options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Objects Factory APIs.
+ * @details If enabled then the objects factory APIs are included in the
+ * kernel.
+ *
+ * @note The default is @p FALSE.
+ */
+#if !defined(CH_CFG_USE_FACTORY)
+#define CH_CFG_USE_FACTORY TRUE
+#endif
+
+/**
+ * @brief Maximum length for object names.
+ * @details If the specified length is zero then the name is stored by
+ * pointer but this could have unintended side effects.
+ */
+#if !defined(CH_CFG_FACTORY_MAX_NAMES_LENGTH)
+#define CH_CFG_FACTORY_MAX_NAMES_LENGTH 8
+#endif
+
+/**
+ * @brief Enables the registry of generic objects.
+ */
+#if !defined(CH_CFG_FACTORY_OBJECTS_REGISTRY)
+#define CH_CFG_FACTORY_OBJECTS_REGISTRY TRUE
+#endif
+
+/**
+ * @brief Enables factory for generic buffers.
+ */
+#if !defined(CH_CFG_FACTORY_GENERIC_BUFFERS)
+#define CH_CFG_FACTORY_GENERIC_BUFFERS TRUE
+#endif
+
+/**
+ * @brief Enables factory for semaphores.
+ */
+#if !defined(CH_CFG_FACTORY_SEMAPHORES)
+#define CH_CFG_FACTORY_SEMAPHORES TRUE
+#endif
+
+/**
+ * @brief Enables factory for mailboxes.
+ */
+#if !defined(CH_CFG_FACTORY_MAILBOXES)
+#define CH_CFG_FACTORY_MAILBOXES TRUE
+#endif
+
+/**
+ * @brief Enables factory for objects FIFOs.
+ */
+#if !defined(CH_CFG_FACTORY_OBJ_FIFOS)
+#define CH_CFG_FACTORY_OBJ_FIFOS TRUE
+#endif
+
+/**
+ * @brief Enables factory for Pipes.
+ */
+#if !defined(CH_CFG_FACTORY_PIPES) || defined(__DOXYGEN__)
+#define CH_CFG_FACTORY_PIPES TRUE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Debug options
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Debug option, kernel statistics.
+ *
+ * @note The default is @p FALSE.
+ */
+#if !defined(CH_DBG_STATISTICS)
+#define CH_DBG_STATISTICS FALSE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_DBG_SYSTEM_STATE_CHECK)
+#define CH_DBG_SYSTEM_STATE_CHECK TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_DBG_ENABLE_CHECKS)
+#define CH_DBG_ENABLE_CHECKS TRUE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_DBG_ENABLE_ASSERTS)
+#define CH_DBG_ENABLE_ASSERTS TRUE
+#endif
+
+/**
+ * @brief Debug option, trace buffer.
+ * @details If enabled then the trace buffer is activated.
+ *
+ * @note The default is @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#if !defined(CH_DBG_TRACE_MASK)
+#define CH_DBG_TRACE_MASK CH_DBG_TRACE_MASK_DISABLED
+#endif
+
+/**
+ * @brief Trace buffer entries.
+ * @note The trace buffer is only allocated if @p CH_DBG_TRACE_MASK is
+ * different from @p CH_DBG_TRACE_MASK_DISABLED.
+ */
+#if !defined(CH_DBG_TRACE_BUFFER_SIZE)
+#define CH_DBG_TRACE_BUFFER_SIZE 128
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_DBG_ENABLE_STACK_CHECK)
+#define CH_DBG_ENABLE_STACK_CHECK FALSE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_DBG_FILL_THREADS)
+#define CH_DBG_FILL_THREADS FALSE
+#endif
+
+/**
+ * @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.
+ */
+#if !defined(CH_DBG_THREADS_PROFILING)
+#define CH_DBG_THREADS_PROFILING FALSE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Kernel hooks
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief System structure extension.
+ * @details User fields added to the end of the @p ch_system_t structure.
+ */
+#define CH_CFG_SYSTEM_EXTRA_FIELDS \
+ /* Add system custom fields here.*/
+
+/**
+ * @brief System initialization hook.
+ * @details User initialization code added to the @p chSysInit() function
+ * just before interrupts are enabled globally.
+ */
+#define CH_CFG_SYSTEM_INIT_HOOK() { \
+ /* Add system initialization code here.*/ \
+}
+
+/**
+ * @brief OS instance structure extension.
+ * @details User fields added to the end of the @p os_instance_t structure.
+ */
+#define CH_CFG_OS_INSTANCE_EXTRA_FIELDS \
+ /* Add OS instance custom fields here.*/
+
+/**
+ * @brief OS instance initialization hook.
+ *
+ * @param[in] oip pointer to the @p os_instance_t structure
+ */
+#define CH_CFG_OS_INSTANCE_INIT_HOOK(oip) { \
+ /* Add OS instance initialization code here.*/ \
+}
+
+/**
+ * @brief Threads descriptor structure extension.
+ * @details User fields added to the end of the @p thread_t structure.
+ */
+#define CH_CFG_THREAD_EXTRA_FIELDS \
+ /* Add threads custom fields here.*/
+
+/**
+ * @brief Threads initialization hook.
+ * @details User initialization code added to the @p _thread_init() function.
+ *
+ * @note It is invoked from within @p _thread_init() and implicitly from all
+ * the threads creation APIs.
+ *
+ * @param[in] tp pointer to the @p thread_t structure
+ */
+#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.
+ *
+ * @param[in] tp pointer to the @p thread_t structure
+ */
+#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.
+ *
+ * @param[in] ntp thread being switched in
+ * @param[in] otp thread being switched out
+ */
+#define CH_CFG_CONTEXT_SWITCH_HOOK(ntp, otp) { \
+ /* Context switch code here.*/ \
+}
+
+/**
+ * @brief ISR enter hook.
+ */
+#define CH_CFG_IRQ_PROLOGUE_HOOK() { \
+ /* IRQ prologue code here.*/ \
+}
+
+/**
+ * @brief ISR exit hook.
+ */
+#define CH_CFG_IRQ_EPILOGUE_HOOK() { \
+ /* IRQ epilogue code here.*/ \
+}
+
+/**
+ * @brief Idle thread enter hook.
+ * @note This hook is invoked within a critical zone, no OS functions
+ * should be invoked from here.
+ * @note This macro can be used to activate a power saving mode.
+ */
+#define CH_CFG_IDLE_ENTER_HOOK() { \
+ /* Idle-enter code here.*/ \
+}
+
+/**
+ * @brief Idle thread leave hook.
+ * @note This hook is invoked within a critical zone, no OS functions
+ * should be invoked from here.
+ * @note This macro can be used to deactivate a power saving mode.
+ */
+#define CH_CFG_IDLE_LEAVE_HOOK() { \
+ /* Idle-leave code here.*/ \
+}
+
+/**
+ * @brief Idle Loop hook.
+ * @details This hook is continuously invoked by the idle thread loop.
+ */
+#define CH_CFG_IDLE_LOOP_HOOK() { \
+ /* Idle loop code here.*/ \
+}
+
+/**
+ * @brief System tick event hook.
+ * @details This hook is invoked in the system tick handler immediately
+ * after processing the virtual timers queue.
+ */
+#define CH_CFG_SYSTEM_TICK_HOOK() { \
+ /* System tick event code here.*/ \
+}
+
+/**
+ * @brief System halt hook.
+ * @details This hook is invoked in case to a system halting error before
+ * the system is halted.
+ */
+#define CH_CFG_SYSTEM_HALT_HOOK(reason) { \
+ /* System halt code here.*/ \
+}
+
+/**
+ * @brief Trace hook.
+ * @details This hook is invoked each time a new record is written in the
+ * trace buffer.
+ */
+#define CH_CFG_TRACE_HOOK(tep) { \
+ /* Trace code here.*/ \
+}
+
+/**
+ * @brief Runtime Faults Collection Unit hook.
+ * @details This hook is invoked each time new faults are collected and stored.
+ */
+#define CH_CFG_RUNTIME_FAULTS_HOOK(mask) { \
+ /* Faults handling code here.*/ \
+}
+
+/** @} */
+
+/*===========================================================================*/
+/* Port-specific settings (override port settings defaulted in chcore.h). */
+/*===========================================================================*/
+
+#define PORT_USE_SYSCALL TRUE
+#define PORT_SWITCHED_REGIONS_NUMBER 2
+
+#endif /* CHCONF_H */
+
+/** @} */
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/ffconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/ffconf.h
new file mode 100644
index 000000000..b76edc527
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/ffconf.h
@@ -0,0 +1,304 @@
+/* CHIBIOS FIX */
+#include "ch.h"
+#define FATFS_CHIBIOS_EXTENSIONS
+
+/*---------------------------------------------------------------------------/
+/ FatFs Functional Configurations
+/---------------------------------------------------------------------------*/
+
+#define FFCONF_DEF 86631 /* Revision ID */
+
+/*---------------------------------------------------------------------------/
+/ Function Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_FS_READONLY 0
+/* This option switches read-only configuration. (0:Read/Write or 1:Read-only)
+/ Read-only configuration removes writing API functions, f_write(), f_sync(),
+/ f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree()
+/ and optional writing functions as well. */
+
+
+#define FF_FS_MINIMIZE 0
+/* This option defines minimization level to remove some basic API functions.
+/
+/ 0: Basic functions are fully enabled.
+/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_truncate() and f_rename()
+/ are removed.
+/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
+/ 3: f_lseek() function is removed in addition to 2. */
+
+
+#define FF_USE_FIND 0
+/* This option switches filtered directory read functions, f_findfirst() and
+/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
+
+
+#define FF_USE_MKFS 0
+/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_FASTSEEK 0
+/* This option switches fast seek function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_EXPAND 0
+/* This option switches f_expand function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_CHMOD 0
+/* This option switches attribute manipulation functions, f_chmod() and f_utime().
+/ (0:Disable or 1:Enable) Also FF_FS_READONLY needs to be 0 to enable this option. */
+
+
+#define FF_USE_LABEL 0
+/* This option switches volume label functions, f_getlabel() and f_setlabel().
+/ (0:Disable or 1:Enable) */
+
+
+#define FF_USE_FORWARD 0
+/* This option switches f_forward() function. (0:Disable or 1:Enable) */
+
+
+#define FF_USE_STRFUNC 0
+#define FF_PRINT_LLI 0
+#define FF_PRINT_FLOAT 0
+#define FF_STRF_ENCODE 0
+/* FF_USE_STRFUNC switches string functions, f_gets(), f_putc(), f_puts() and
+/ f_printf().
+/
+/ 0: Disable. FF_PRINT_LLI, FF_PRINT_FLOAT and FF_STRF_ENCODE have no effect.
+/ 1: Enable without LF-CRLF conversion.
+/ 2: Enable with LF-CRLF conversion.
+/
+/ FF_PRINT_LLI = 1 makes f_printf() support long long argument and FF_PRINT_FLOAT = 1/2
+ makes f_printf() support floating point argument. These features want C99 or later.
+/ When FF_LFN_UNICODE >= 1 with LFN enabled, string functions convert the character
+/ encoding in it. FF_STRF_ENCODE selects assumption of character encoding ON THE FILE
+/ to be read/written via those functions.
+/
+/ 0: ANSI/OEM in current CP
+/ 1: Unicode in UTF-16LE
+/ 2: Unicode in UTF-16BE
+/ 3: Unicode in UTF-8
+*/
+
+
+/*---------------------------------------------------------------------------/
+/ Locale and Namespace Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_CODE_PAGE 850
+/* This option specifies the OEM code page to be used on the target system.
+/ Incorrect code page setting can cause a file open failure.
+/
+/ 437 - U.S.
+/ 720 - Arabic
+/ 737 - Greek
+/ 771 - KBL
+/ 775 - Baltic
+/ 850 - Latin 1
+/ 852 - Latin 2
+/ 855 - Cyrillic
+/ 857 - Turkish
+/ 860 - Portuguese
+/ 861 - Icelandic
+/ 862 - Hebrew
+/ 863 - Canadian French
+/ 864 - Arabic
+/ 865 - Nordic
+/ 866 - Russian
+/ 869 - Greek 2
+/ 932 - Japanese (DBCS)
+/ 936 - Simplified Chinese (DBCS)
+/ 949 - Korean (DBCS)
+/ 950 - Traditional Chinese (DBCS)
+/ 0 - Include all code pages above and configured by f_setcp()
+*/
+
+
+#define FF_USE_LFN 3
+#define FF_MAX_LFN 255
+/* The FF_USE_LFN switches the support for LFN (long file name).
+/
+/ 0: Disable LFN. FF_MAX_LFN has no effect.
+/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
+/ 2: Enable LFN with dynamic working buffer on the STACK.
+/ 3: Enable LFN with dynamic working buffer on the HEAP.
+/
+/ To enable the LFN, ffunicode.c needs to be added to the project. The LFN function
+/ requiers certain internal working buffer occupies (FF_MAX_LFN + 1) * 2 bytes and
+/ additional (FF_MAX_LFN + 44) / 15 * 32 bytes when exFAT is enabled.
+/ The FF_MAX_LFN defines size of the working buffer in UTF-16 code unit and it can
+/ be in range of 12 to 255. It is recommended to be set it 255 to fully support LFN
+/ specification.
+/ When use stack for the working buffer, take care on stack overflow. When use heap
+/ memory for the working buffer, memory management functions, ff_memalloc() and
+/ ff_memfree() exemplified in ffsystem.c, need to be added to the project. */
+
+
+#define FF_LFN_UNICODE 0
+/* This option switches the character encoding on the API when LFN is enabled.
+/
+/ 0: ANSI/OEM in current CP (TCHAR = char)
+/ 1: Unicode in UTF-16 (TCHAR = WCHAR)
+/ 2: Unicode in UTF-8 (TCHAR = char)
+/ 3: Unicode in UTF-32 (TCHAR = DWORD)
+/
+/ Also behavior of string I/O functions will be affected by this option.
+/ When LFN is not enabled, this option has no effect. */
+
+
+#define FF_LFN_BUF 255
+#define FF_SFN_BUF 12
+/* This set of options defines size of file name members in the FILINFO structure
+/ which is used to read out directory items. These values should be suffcient for
+/ the file names to read. The maximum possible length of the read file name depends
+/ on character encoding. When LFN is not enabled, these options have no effect. */
+
+
+#define FF_FS_RPATH 0
+/* This option configures support for relative path.
+/
+/ 0: Disable relative path and remove related functions.
+/ 1: Enable relative path. f_chdir() and f_chdrive() are available.
+/ 2: f_getcwd() function is available in addition to 1.
+*/
+
+
+/*---------------------------------------------------------------------------/
+/ Drive/Volume Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_VOLUMES 1
+/* Number of volumes (logical drives) to be used. (1-10) */
+
+
+#define FF_STR_VOLUME_ID 0
+#define FF_VOLUME_STRS "RAM","NAND","CF","SD","SD2","USB","USB2","USB3"
+/* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings.
+/ When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive
+/ number in the path name. FF_VOLUME_STRS defines the volume ID strings for each
+/ logical drives. Number of items must not be less than FF_VOLUMES. Valid
+/ characters for the volume ID strings are A-Z, a-z and 0-9, however, they are
+/ compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is
+/ not defined, a user defined volume string table needs to be defined as:
+/
+/ const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",...
+*/
+
+
+#define FF_MULTI_PARTITION 0
+/* This option switches support for multiple volumes on the physical drive.
+/ By default (0), each logical drive number is bound to the same physical drive
+/ number and only an FAT volume found on the physical drive will be mounted.
+/ When this function is enabled (1), each logical drive number can be bound to
+/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk()
+/ funciton will be available. */
+
+
+#define FF_MIN_SS 512
+#define FF_MAX_SS 512
+/* This set of options configures the range of sector size to be supported. (512,
+/ 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and
+/ harddisk, but a larger value may be required for on-board flash memory and some
+/ type of optical media. When FF_MAX_SS is larger than FF_MIN_SS, FatFs is configured
+/ for variable sector size mode and disk_ioctl() function needs to implement
+/ GET_SECTOR_SIZE command. */
+
+
+#define FF_LBA64 0
+/* This option switches support for 64-bit LBA. (0:Disable or 1:Enable)
+/ To enable the 64-bit LBA, also exFAT needs to be enabled. (FF_FS_EXFAT == 1) */
+
+
+#define FF_MIN_GPT 0x10000000
+/* Minimum number of sectors to switch GPT as partitioning format in f_mkfs and
+/ f_fdisk function. 0x100000000 max. This option has no effect when FF_LBA64 == 0. */
+
+
+#define FF_USE_TRIM 0
+/* This option switches support for ATA-TRIM. (0:Disable or 1:Enable)
+/ To enable Trim function, also CTRL_TRIM command should be implemented to the
+/ disk_ioctl() function. */
+
+
+
+/*---------------------------------------------------------------------------/
+/ System Configurations
+/---------------------------------------------------------------------------*/
+
+#define FF_FS_TINY 0
+/* This option switches tiny buffer configuration. (0:Normal or 1:Tiny)
+/ At the tiny configuration, size of file object (FIL) is shrinked FF_MAX_SS bytes.
+/ Instead of private sector buffer eliminated from the file object, common sector
+/ buffer in the filesystem object (FATFS) is used for the file data transfer. */
+
+
+#define FF_FS_EXFAT 1
+/* This option switches support for exFAT filesystem. (0:Disable or 1:Enable)
+/ To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1)
+/ Note that enabling exFAT discards ANSI C (C89) compatibility. */
+
+
+#define FF_FS_NORTC 0
+#define FF_NORTC_MON 1
+#define FF_NORTC_MDAY 1
+#define FF_NORTC_YEAR 2020
+/* The option FF_FS_NORTC switches timestamp functiton. If the system does not have
+/ any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable
+/ the timestamp function. Every object modified by FatFs will have a fixed timestamp
+/ defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time.
+/ To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be
+/ added to the project to read current time form real-time clock. FF_NORTC_MON,
+/ FF_NORTC_MDAY and FF_NORTC_YEAR have no effect.
+/ These options have no effect in read-only configuration (FF_FS_READONLY = 1). */
+
+
+#define FF_FS_NOFSINFO 0
+/* If you need to know correct free space on the FAT32 volume, set bit 0 of this
+/ option, and f_getfree() function at first time after volume mount will force
+/ a full FAT scan. Bit 1 controls the use of last allocated cluster number.
+/
+/ bit0=0: Use free cluster count in the FSINFO if available.
+/ bit0=1: Do not trust free cluster count in the FSINFO.
+/ bit1=0: Use last allocated cluster number in the FSINFO if available.
+/ bit1=1: Do not trust last allocated cluster number in the FSINFO.
+*/
+
+
+#define FF_FS_LOCK 0
+/* The option FF_FS_LOCK switches file lock function to control duplicated file open
+/ and illegal operation to open objects. This option must be 0 when FF_FS_READONLY
+/ is 1.
+/
+/ 0: Disable file lock function. To avoid volume corruption, application program
+/ should avoid illegal open, remove and rename to the open objects.
+/ >0: Enable file lock function. The value defines how many files/sub-directories
+/ can be opened simultaneously under file lock control. Note that the file
+/ lock control is independent of re-entrancy. */
+
+
+#define FF_FS_REENTRANT 0
+#define FF_FS_TIMEOUT TIME_MS2I(1000)
+#define FF_SYNC_t semaphore_t*
+/* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs
+/ module itself. Note that regardless of this option, file access to different
+/ volume is always re-entrant and volume control functions, f_mount(), f_mkfs()
+/ and f_fdisk() function, are always not re-entrant. Only file/directory access
+/ to the same volume is under control of this function.
+/
+/ 0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect.
+/ 1: Enable re-entrancy. Also user provided synchronization handlers,
+/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
+/ function, must be added to the project. Samples are available in
+/ option/syscall.c.
+/
+/ The FF_FS_TIMEOUT defines timeout period in unit of time tick.
+/ The FF_SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*,
+/ SemaphoreHandle_t and etc. A header file for O/S definitions needs to be
+/ included somewhere in the scope of ff.h. */
+
+
+
+/*--- End of configuration options ---*/
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/halconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/halconf.h
new file mode 100644
index 000000000..ebdff0fa6
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/halconf.h
@@ -0,0 +1,550 @@
+/*
+ ChibiOS - Copyright (C) 2006..2020 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
+
+#define _CHIBIOS_HAL_CONF_
+#define _CHIBIOS_HAL_CONF_VER_8_0_
+
+#include "mcuconf.h"
+
+/**
+ * @brief Enables the PAL subsystem.
+ */
+#if !defined(HAL_USE_PAL) || defined(__DOXYGEN__)
+#define HAL_USE_PAL TRUE
+#endif
+
+/**
+ * @brief Enables the ADC subsystem.
+ */
+#if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
+#define HAL_USE_ADC FALSE
+#endif
+
+/**
+ * @brief Enables the CAN subsystem.
+ */
+#if !defined(HAL_USE_CAN) || defined(__DOXYGEN__)
+#define HAL_USE_CAN FALSE
+#endif
+
+/**
+ * @brief Enables the cryptographic subsystem.
+ */
+#if !defined(HAL_USE_CRY) || defined(__DOXYGEN__)
+#define HAL_USE_CRY FALSE
+#endif
+
+/**
+ * @brief Enables the DAC subsystem.
+ */
+#if !defined(HAL_USE_DAC) || defined(__DOXYGEN__)
+#define HAL_USE_DAC FALSE
+#endif
+
+/**
+ * @brief Enables the EFlash subsystem.
+ */
+#if !defined(HAL_USE_EFL) || defined(__DOXYGEN__)
+#define HAL_USE_EFL 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 TRUE
+#endif
+
+/**
+ * @brief Enables the SERIAL subsystem.
+ */
+#if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL TRUE
+#endif
+
+/**
+ * @brief Enables the SERIAL over USB subsystem.
+ */
+#if !defined(HAL_USE_SERIAL_USB) || defined(__DOXYGEN__)
+#define HAL_USE_SERIAL_USB FALSE
+#endif
+
+/**
+ * @brief Enables the SIO subsystem.
+ */
+#if !defined(HAL_USE_SIO) || defined(__DOXYGEN__)
+#define HAL_USE_SIO FALSE
+#endif
+
+/**
+ * @brief Enables the SPI subsystem.
+ */
+#if !defined(HAL_USE_SPI) || defined(__DOXYGEN__)
+#define HAL_USE_SPI FALSE
+#endif
+
+/**
+ * @brief Enables the TRNG subsystem.
+ */
+#if !defined(HAL_USE_TRNG) || defined(__DOXYGEN__)
+#define HAL_USE_TRNG FALSE
+#endif
+
+/**
+ * @brief Enables the UART subsystem.
+ */
+#if !defined(HAL_USE_UART) || defined(__DOXYGEN__)
+#define HAL_USE_UART FALSE
+#endif
+
+/**
+ * @brief Enables the USB subsystem.
+ */
+#if !defined(HAL_USE_USB) || defined(__DOXYGEN__)
+#define HAL_USE_USB FALSE
+#endif
+
+/**
+ * @brief Enables the WDG subsystem.
+ */
+#if !defined(HAL_USE_WDG) || defined(__DOXYGEN__)
+#define HAL_USE_WDG FALSE
+#endif
+
+/**
+ * @brief Enables the WSPI subsystem.
+ */
+#if !defined(HAL_USE_WSPI) || defined(__DOXYGEN__)
+#define HAL_USE_WSPI FALSE
+#endif
+
+/*===========================================================================*/
+/* PAL driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(PAL_USE_CALLBACKS) || defined(__DOXYGEN__)
+#define PAL_USE_CALLBACKS FALSE
+#endif
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(PAL_USE_WAIT) || defined(__DOXYGEN__)
+#define PAL_USE_WAIT FALSE
+#endif
+
+/*===========================================================================*/
+/* ADC driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(ADC_USE_WAIT) || defined(__DOXYGEN__)
+#define ADC_USE_WAIT TRUE
+#endif
+
+/**
+ * @brief Enables the @p adcAcquireBus() and @p adcReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define ADC_USE_MUTUAL_EXCLUSION TRUE
+#endif
+
+/*===========================================================================*/
+/* CAN driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Sleep mode related APIs inclusion switch.
+ */
+#if !defined(CAN_USE_SLEEP_MODE) || defined(__DOXYGEN__)
+#define CAN_USE_SLEEP_MODE TRUE
+#endif
+
+/**
+ * @brief Enforces the driver to use direct callbacks rather than OSAL events.
+ */
+#if !defined(CAN_ENFORCE_USE_CALLBACKS) || defined(__DOXYGEN__)
+#define CAN_ENFORCE_USE_CALLBACKS FALSE
+#endif
+
+/*===========================================================================*/
+/* CRY driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables the SW fall-back of the cryptographic driver.
+ * @details When enabled, this option, activates a fall-back software
+ * implementation for algorithms not supported by the underlying
+ * hardware.
+ * @note Fall-back implementations may not be present for all algorithms.
+ */
+#if !defined(HAL_CRY_USE_FALLBACK) || defined(__DOXYGEN__)
+#define HAL_CRY_USE_FALLBACK FALSE
+#endif
+
+/**
+ * @brief Makes the driver forcibly use the fall-back implementations.
+ */
+#if !defined(HAL_CRY_ENFORCE_FALLBACK) || defined(__DOXYGEN__)
+#define HAL_CRY_ENFORCE_FALLBACK FALSE
+#endif
+
+/*===========================================================================*/
+/* DAC driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(DAC_USE_WAIT) || defined(__DOXYGEN__)
+#define DAC_USE_WAIT TRUE
+#endif
+
+/**
+ * @brief Enables the @p dacAcquireBus() and @p dacReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(DAC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define DAC_USE_MUTUAL_EXCLUSION 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 the zero-copy API.
+ */
+#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
+
+/**
+ * @brief OCR initialization constant for V20 cards.
+ */
+#if !defined(SDC_INIT_OCR_V20) || defined(__DOXYGEN__)
+#define SDC_INIT_OCR_V20 0x50FF8000U
+#endif
+
+/**
+ * @brief OCR initialization constant for non-V20 cards.
+ */
+#if !defined(SDC_INIT_OCR) || defined(__DOXYGEN__)
+#define SDC_INIT_OCR 0x80100000U
+#endif
+
+/*===========================================================================*/
+/* SERIAL driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Default bit rate.
+ * @details Configuration parameter, this is the baud rate selected for the
+ * default configuration.
+ */
+#if !defined(SERIAL_DEFAULT_BITRATE) || defined(__DOXYGEN__)
+#define SERIAL_DEFAULT_BITRATE 38400
+#endif
+
+/**
+ * @brief Serial buffers size.
+ * @details Configuration parameter, you can change the depth of the queue
+ * buffers depending on the requirements of your application.
+ * @note The default is 16 bytes for both the transmission and receive
+ * buffers.
+ */
+#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_BUFFERS_SIZE 16
+#endif
+
+/*===========================================================================*/
+/* SIO driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Default bit rate.
+ * @details Configuration parameter, this is the baud rate selected for the
+ * default configuration.
+ */
+#if !defined(SIO_DEFAULT_BITRATE) || defined(__DOXYGEN__)
+#define SIO_DEFAULT_BITRATE 38400
+#endif
+
+/**
+ * @brief Support for thread synchronization API.
+ */
+#if !defined(SIO_USE_SYNCHRONIZATION) || defined(__DOXYGEN__)
+#define SIO_USE_SYNCHRONIZATION TRUE
+#endif
+
+/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @brief Serial over USB buffers size.
+ * @details Configuration parameter, the buffer size must be a multiple of
+ * the USB data endpoint maximum packet size.
+ * @note The default is 256 bytes for both the transmission and receive
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/**
+ * @brief Serial over USB number of buffers.
+ * @note The default is 2 buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_NUMBER) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_NUMBER 2
+#endif
+
+/*===========================================================================*/
+/* SPI driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)
+#define SPI_USE_WAIT TRUE
+#endif
+
+/**
+ * @brief Inserts an assertion on function errors before returning.
+ */
+#if !defined(SPI_USE_ASSERT_ON_ERROR) || defined(__DOXYGEN__)
+#define SPI_USE_ASSERT_ON_ERROR 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
+
+/**
+ * @brief Handling method for SPI CS line.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(SPI_SELECT_MODE) || defined(__DOXYGEN__)
+#define SPI_SELECT_MODE SPI_SELECT_MODE_PAD
+#endif
+
+/*===========================================================================*/
+/* UART driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(UART_USE_WAIT) || defined(__DOXYGEN__)
+#define UART_USE_WAIT FALSE
+#endif
+
+/**
+ * @brief Enables the @p uartAcquireBus() and @p uartReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(UART_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define UART_USE_MUTUAL_EXCLUSION FALSE
+#endif
+
+/*===========================================================================*/
+/* USB driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(USB_USE_WAIT) || defined(__DOXYGEN__)
+#define USB_USE_WAIT FALSE
+#endif
+
+/*===========================================================================*/
+/* WSPI driver related settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Enables synchronous APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(WSPI_USE_WAIT) || defined(__DOXYGEN__)
+#define WSPI_USE_WAIT TRUE
+#endif
+
+/**
+ * @brief Enables the @p wspiAcquireBus() and @p wspiReleaseBus() APIs.
+ * @note Disabling this option saves both code and data space.
+ */
+#if !defined(WSPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
+#define WSPI_USE_MUTUAL_EXCLUSION TRUE
+#endif
+
+#endif /* HALCONF_H */
+
+/** @} */
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/mcuconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/mcuconf.h
new file mode 100644
index 000000000..033e5e59b
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/mcuconf.h
@@ -0,0 +1,393 @@
+/*
+ ChibiOS - Copyright (C) 2006..2020 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.
+*/
+
+/*
+ * STM32L4xx 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.
+ */
+
+#ifndef MCUCONF_H
+#define MCUCONF_H
+
+#define STM32L4xx_MCUCONF
+#define STM32L4R5_MCUCONF
+#define STM32L4S5_MCUCONF
+#define STM32L4R7_MCUCONF
+#define STM32L4S7_MCUCONF
+#define STM32L4R9_MCUCONF
+#define STM32L4S9_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+#define STM32_NO_INIT FALSE
+#define STM32_CLOCK_DYNAMIC FALSE
+#define STM32_VOS STM32_VOS_RANGE1
+#define STM32_PWR_BOOST TRUE
+#define STM32_PWR_CR2 (PWR_CR2_PLS_LEV0 | PWR_CR2_IOSV)
+#define STM32_PWR_CR3 (PWR_CR3_EIWF)
+#define STM32_PWR_CR4 (0U)
+#define STM32_PWR_PUCRA (0U)
+#define STM32_PWR_PDCRA (0U)
+#define STM32_PWR_PUCRB (0U)
+#define STM32_PWR_PDCRB (0U)
+#define STM32_PWR_PUCRC (0U)
+#define STM32_PWR_PDCRC (0U)
+#define STM32_PWR_PUCRD (0U)
+#define STM32_PWR_PDCRD (0U)
+#define STM32_PWR_PUCRE (0U)
+#define STM32_PWR_PDCRE (0U)
+#define STM32_PWR_PUCRF (0U)
+#define STM32_PWR_PDCRF (0U)
+#define STM32_PWR_PUCRG (0U)
+#define STM32_PWR_PDCRG (0U)
+#define STM32_PWR_PUCRH (0U)
+#define STM32_PWR_PDCRH (0U)
+#define STM32_PWR_PUCRI (0U)
+#define STM32_PWR_PDCRI (0U)
+#define STM32_HSI16_ENABLED FALSE
+#define STM32_HSI48_ENABLED FALSE
+#define STM32_LSI_ENABLED TRUE
+#define STM32_HSE_ENABLED TRUE
+#define STM32_LSE_ENABLED FALSE
+#define STM32_MSIPLL_ENABLED FALSE
+#define STM32_MSIRANGE STM32_MSIRANGE_4M
+#define STM32_MSISRANGE STM32_MSISRANGE_4M
+#define STM32_SW STM32_SW_PLL
+#define STM32_PLLSRC STM32_PLLSRC_HSE
+#define STM32_PLLM_VALUE 4
+#define STM32_PLLN_VALUE 60
+#define STM32_PLLPDIV_VALUE 0
+#define STM32_PLLP_VALUE 7
+#define STM32_PLLQ_VALUE 4
+#define STM32_PLLR_VALUE 2
+#define STM32_HPRE STM32_HPRE_DIV1
+#define STM32_PPRE1 STM32_PPRE1_DIV1
+#define STM32_PPRE2 STM32_PPRE2_DIV1
+#define STM32_STOPWUCK STM32_STOPWUCK_MSI
+#define STM32_MCOSEL STM32_MCOSEL_NOCLOCK
+#define STM32_MCOPRE STM32_MCOPRE_DIV1
+#define STM32_LSCOSEL STM32_LSCOSEL_NOCLOCK
+#define STM32_PLLSAI1M_VALUE 4
+#define STM32_PLLSAI1N_VALUE 60
+#define STM32_PLLSAI1PDIV_VALUE 6
+#define STM32_PLLSAI1P_VALUE 7
+#define STM32_PLLSAI1Q_VALUE 6
+#define STM32_PLLSAI1R_VALUE 6
+#define STM32_PLLSAI2M_VALUE 4
+#define STM32_PLLSAI2N_VALUE 60
+#define STM32_PLLSAI2PDIV_VALUE 6
+#define STM32_PLLSAI2P_VALUE 7
+#define STM32_PLLSAI2Q_VALUE 6
+#define STM32_PLLSAI2R_VALUE 6
+#define STM32_PLLSAI2DIVR STM32_PLLSAI2DIVR_DIV16
+
+/*
+ * Peripherals clock sources.
+ */
+#define STM32_USART1SEL STM32_USART1SEL_SYSCLK
+#define STM32_USART2SEL STM32_USART2SEL_SYSCLK
+#define STM32_USART3SEL STM32_USART3SEL_SYSCLK
+#define STM32_UART4SEL STM32_UART4SEL_SYSCLK
+#define STM32_UART5SEL STM32_UART5SEL_SYSCLK
+#define STM32_LPUART1SEL STM32_LPUART1SEL_SYSCLK
+#define STM32_I2C1SEL STM32_I2C1SEL_SYSCLK
+#define STM32_I2C2SEL STM32_I2C2SEL_SYSCLK
+#define STM32_I2C3SEL STM32_I2C3SEL_SYSCLK
+#define STM32_I2C4SEL STM32_I2C4SEL_SYSCLK
+#define STM32_LPTIM1SEL STM32_LPTIM1SEL_PCLK1
+#define STM32_LPTIM2SEL STM32_LPTIM2SEL_PCLK1
+#define STM32_CLK48SEL STM32_CLK48SEL_PLLSAI1
+#define STM32_ADCSEL STM32_ADCSEL_SYSCLK
+#define STM32_DFSDMSEL STM32_DFSDMSEL_PCLK2
+#define STM32_ADFSDMSEL STM32_ADFSDMSEL_SAI1CLK
+#define STM32_SAI1SEL STM32_SAI1SEL_OFF
+#define STM32_SAI2SEL STM32_SAI2SEL_OFF
+#define STM32_DSISEL STM32_DSISEL_DSIPHY
+#define STM32_SDMMCSEL STM32_SDMMCSEL_48CLK
+#define STM32_OSPISEL STM32_OSPISEL_SYSCLK
+#define STM32_RTCSEL STM32_RTCSEL_LSI
+
+/*
+ * IRQ system settings.
+ */
+#define STM32_IRQ_EXTI0_PRIORITY 6
+#define STM32_IRQ_EXTI1_PRIORITY 6
+#define STM32_IRQ_EXTI2_PRIORITY 6
+#define STM32_IRQ_EXTI3_PRIORITY 6
+#define STM32_IRQ_EXTI4_PRIORITY 6
+#define STM32_IRQ_EXTI5_9_PRIORITY 6
+#define STM32_IRQ_EXTI10_15_PRIORITY 6
+#define STM32_IRQ_EXTI1635_38_PRIORITY 6
+#define STM32_IRQ_EXTI18_PRIORITY 6
+#define STM32_IRQ_EXTI19_PRIORITY 6
+#define STM32_IRQ_EXTI20_PRIORITY 6
+#define STM32_IRQ_EXTI21_22_PRIORITY 6
+
+#define STM32_IRQ_SDMMC1_PRIORITY 9
+
+#define STM32_IRQ_TIM1_BRK_TIM15_PRIORITY 7
+#define STM32_IRQ_TIM1_UP_TIM16_PRIORITY 7
+#define STM32_IRQ_TIM1_TRGCO_TIM17_PRIORITY 7
+#define STM32_IRQ_TIM1_CC_PRIORITY 7
+#define STM32_IRQ_TIM2_PRIORITY 7
+#define STM32_IRQ_TIM3_PRIORITY 7
+#define STM32_IRQ_TIM4_PRIORITY 7
+#define STM32_IRQ_TIM5_PRIORITY 7
+#define STM32_IRQ_TIM6_PRIORITY 7
+#define STM32_IRQ_TIM7_PRIORITY 7
+#define STM32_IRQ_TIM8_UP_PRIORITY 7
+#define STM32_IRQ_TIM8_CC_PRIORITY 7
+
+#define STM32_IRQ_USART1_PRIORITY 12
+#define STM32_IRQ_USART2_PRIORITY 12
+#define STM32_IRQ_USART3_PRIORITY 12
+#define STM32_IRQ_UART4_PRIORITY 12
+#define STM32_IRQ_UART5_PRIORITY 12
+#define STM32_IRQ_LPUART1_PRIORITY 12
+
+/*
+ * ADC driver system settings.
+ */
+#define STM32_ADC_COMPACT_SAMPLES FALSE
+#define STM32_ADC_USE_ADC1 FALSE
+#define STM32_ADC_ADC1_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_ADC_ADC1_DMA_PRIORITY 2
+#define STM32_ADC_ADC12_IRQ_PRIORITY 5
+#define STM32_ADC_ADC1_DMA_IRQ_PRIORITY 5
+#define STM32_ADC_ADC123_CLOCK_MODE ADC_CCR_CKMODE_AHB_DIV2
+#define STM32_ADC_ADC123_PRESC ADC_CCR_PRESC_DIV2
+
+/*
+ * CAN driver system settings.
+ */
+#define STM32_CAN_USE_CAN1 FALSE
+#define STM32_CAN_CAN1_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_ANY
+#define STM32_DAC_DAC1_CH2_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+
+/*
+ * 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_TIM15 FALSE
+#define STM32_GPT_USE_TIM16 FALSE
+#define STM32_GPT_USE_TIM17 FALSE
+
+/*
+ * 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_USE_I2C4 FALSE
+#define STM32_I2C_BUSY_TIMEOUT 50
+#define STM32_I2C_I2C1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C2_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C2_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C3_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C3_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C4_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C4_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_I2C_I2C1_IRQ_PRIORITY 5
+#define STM32_I2C_I2C2_IRQ_PRIORITY 5
+#define STM32_I2C_I2C3_IRQ_PRIORITY 5
+#define STM32_I2C_I2C4_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_I2C4_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_TIM15 FALSE
+#define STM32_ICU_USE_TIM16 FALSE
+#define STM32_ICU_USE_TIM17 FALSE
+
+/*
+ * PWM driver system settings.
+ */
+#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_TIM15 FALSE
+#define STM32_PWM_USE_TIM16 FALSE
+#define STM32_PWM_USE_TIM17 FALSE
+
+/*
+ * RTC driver system settings.
+ */
+#define STM32_RTC_PRESA_VALUE 32
+#define STM32_RTC_PRESS_VALUE 1024
+#define STM32_RTC_CR_INIT 0
+#define STM32_RTC_TAMPCR_INIT 0
+
+/*
+ * SDC driver system settings.
+ */
+#define STM32_SDC_USE_SDMMC1 TRUE
+#define STM32_SDC_SDMMC_UNALIGNED_SUPPORT TRUE
+#define STM32_SDC_SDMMC_WRITE_TIMEOUT 1000000
+#define STM32_SDC_SDMMC_READ_TIMEOUT 1000000
+#define STM32_SDC_SDMMC_CLOCK_DELAY 10
+#define STM32_SDC_SDMMC_PWRSAV TRUE
+#define STM32_SDC_SDMMC1_IRQ_PRIORITY 9
+
+/*
+ * SERIAL driver system settings.
+ */
+#define STM32_SERIAL_USE_USART1 FALSE
+#define STM32_SERIAL_USE_USART2 TRUE
+#define STM32_SERIAL_USE_USART3 FALSE
+#define STM32_SERIAL_USE_UART4 FALSE
+#define STM32_SERIAL_USE_UART5 FALSE
+#define STM32_SERIAL_USE_LPUART1 TRUE
+
+/*
+ * SIO driver system settings.
+ */
+#define STM32_SIO_USE_USART1 FALSE
+#define STM32_SIO_USE_USART2 FALSE
+#define STM32_SIO_USE_USART3 FALSE
+#define STM32_SIO_USE_UART4 FALSE
+#define STM32_SIO_USE_UART5 FALSE
+#define STM32_SIO_USE_LPUART1 FALSE
+
+/*
+ * 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_SPI1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_SPI_SPI1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_SPI_SPI2_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_SPI_SPI2_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_SPI_SPI3_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_SPI_SPI3_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_SPI_SPI1_DMA_PRIORITY 1
+#define STM32_SPI_SPI2_DMA_PRIORITY 1
+#define STM32_SPI_SPI3_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_DMA_ERROR_HOOK(spip) osalSysHalt("DMA failure")
+
+/*
+ * ST driver system settings.
+ */
+#define STM32_ST_IRQ_PRIORITY 8
+#define STM32_ST_USE_TIMER 2
+
+/*
+ * TRNG driver system settings.
+ */
+#define STM32_TRNG_USE_RNG1 TRUE
+
+/*
+ * 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_USART1_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_USART1_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_USART2_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_USART2_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_USART3_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_USART3_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_UART4_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_UART4_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_UART5_RX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_UART_UART5_TX_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#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_DMA_ERROR_HOOK(uartp) osalSysHalt("DMA failure")
+
+/*
+ * USB driver system settings.
+ */
+#define STM32_USB_USE_OTG1 FALSE
+#define STM32_USB_OTG1_IRQ_PRIORITY 14
+#define STM32_USB_OTG1_RX_FIFO_SIZE 512
+
+/*
+ * WDG driver system settings.
+ */
+#define STM32_WDG_USE_IWDG FALSE
+
+/*
+ * WSPI driver system settings.
+ */
+#define STM32_WSPI_USE_OCTOSPI1 TRUE
+#define STM32_WSPI_USE_OCTOSPI2 TRUE
+#define STM32_WSPI_OCTOSPI1_PRESCALER_VALUE 1
+#define STM32_WSPI_OCTOSPI2_PRESCALER_VALUE 1
+#define STM32_WSPI_OCTOSPI1_IRQ_PRIORITY 10
+#define STM32_WSPI_OCTOSPI2_IRQ_PRIORITY 10
+#define STM32_WSPI_OCTOSPI1_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_WSPI_OCTOSPI2_DMA_STREAM STM32_DMA_STREAM_ID_ANY
+#define STM32_WSPI_OCTOSPI1_DMA_PRIORITY 1
+#define STM32_WSPI_OCTOSPI2_DMA_PRIORITY 1
+#define STM32_WSPI_OCTOSPI1_DMA_IRQ_PRIORITY 10
+#define STM32_WSPI_OCTOSPI2_DMA_IRQ_PRIORITY 10
+#define STM32_WSPI_DMA_ERROR_HOOK(qspip) osalSysHalt("DMA failure")
+
+#endif /* MCUCONF_H */
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/sbconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/sbconf.h
new file mode 100644
index 000000000..cfd1a98f5
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/sbconf.h
@@ -0,0 +1,57 @@
+/*
+ ChibiOS - Copyright (C) 2006..2020 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 sb/templates/sbconf.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 SB_CONFIG
+ * @details Sandboxes-related settings and hooks.
+ * @{
+ */
+
+#ifndef SBCONF_H
+#define SBCONF_H
+
+#define __CHIBIOS_SB_CONF__
+#define __CHIBIOS_SB_CONF_VER_3_0__
+
+/**
+ * @brief Number of memory regions for each sandbox.
+ */
+#if !defined(SB_CFG_NUM_REGIONS) || defined(__DOXYGEN__)
+#define SB_CFG_NUM_REGIONS 2
+#endif
+
+/**
+ * @brief Enables Posix API in sandboxes using VFS.
+ */
+#if !defined(SB_CFG_ENABLE_VFS) || defined(__DOXYGEN__)
+#define SB_CFG_ENABLE_VFS TRUE
+#endif
+
+/**
+ * @brief Number of file descriptors for each sandbox.
+ */
+#if !defined(SB_CFG_FD_NUM) || defined(__DOXYGEN__)
+#define SB_CFG_FD_NUM 12
+#endif
+
+#endif /* SBCONF_H */
+
+/** @} */
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/vfsconf.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/vfsconf.h
new file mode 100644
index 000000000..c11cc733f
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/cfg/vfsconf.h
@@ -0,0 +1,162 @@
+/*
+ ChibiOS - Copyright (C) 2006..2020 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/vfsconf.h
+ * @brief VFS configuration header.
+ *
+ * @addtogroup VFS_CONF
+ * @{
+ */
+
+#ifndef VFSCONF_H
+#define VFSCONF_H
+
+#define _CHIBIOS_VFS_CONF_
+#define _CHIBIOS_VFS_CONF_VER_1_0_
+
+/*===========================================================================*/
+/**
+ * @name VFS general settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Maximum filename length.
+ */
+#if !defined(VFS_CFG_NAMELEN_MAX) || defined(__DOXYGEN__)
+#define VFS_CFG_NAMELEN_MAX 15
+#endif
+
+/**
+ * @brief Maximum paths length.
+ */
+#if !defined(VFS_CFG_PATHLEN_MAX) || defined(__DOXYGEN__)
+#define VFS_CFG_PATHLEN_MAX 1023
+#endif
+
+/**
+ * @brief Number of shared path buffers.
+ */
+#if !defined(VFS_CFG_PATHBUFS_NUM) || defined(__DOXYGEN__)
+#define VFS_CFG_PATHBUFS_NUM 1
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name VFS drivers
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Enables the VFS Overlay Driver.
+ */
+#if !defined(VFS_CFG_ENABLE_DRV_OVERLAY) || defined(__DOXYGEN__)
+#define VFS_CFG_ENABLE_DRV_OVERLAY TRUE
+#endif
+
+/**
+ * @brief Enables the VFS Streams Driver.
+ */
+#if !defined(VFS_CFG_ENABLE_DRV_STREAMS) || defined(__DOXYGEN__)
+#define VFS_CFG_ENABLE_DRV_STREAMS TRUE
+#endif
+
+/**
+ * @brief Enables the VFS FatFS Driver.
+ */
+#if !defined(VFS_CFG_ENABLE_DRV_FATFS) || defined(__DOXYGEN__)
+#define VFS_CFG_ENABLE_DRV_FATFS TRUE
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Overlay driver settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Maximum number of overlay directories.
+ */
+#if !defined(DRV_CFG_OVERLAY_DRV_MAX) || defined(__DOXYGEN__)
+#define DRV_CFG_OVERLAY_DRV_MAX 2
+#endif
+
+/**
+ * @brief Number of directory nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_OVERLAY_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_OVERLAY_DIR_NODES_NUM 1
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name Streams driver settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Number of directory nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_STREAMS_DIR_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_STREAMS_DIR_NODES_NUM 1
+#endif
+
+/**
+ * @brief Number of file nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_STREAMS_FILE_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_STREAMS_FILE_NODES_NUM 2
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/**
+ * @name FatFS driver settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief Number of directory nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_DIR_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_DIR_NODES_NUM 1
+#endif
+
+/**
+ * @brief Number of file nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_FILE_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_FILE_NODES_NUM 2
+#endif
+
+/** @} */
+
+#endif /* VFSCONF_H */
+
+/** @} */
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/debug/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC (build-ch.elf)(OpenOCD, Flash and Run).launch b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/debug/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC (build-ch.elf)(OpenOCD, Flash and Run).launch
new file mode 100644
index 000000000..b52fefe1d
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/debug/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC (build-ch.elf)(OpenOCD, Flash and Run).launch
@@ -0,0 +1,48 @@
+
+
+
+
+
+
+
+
+
+
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diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/debug/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC (build-ch.elf)(OpenOCD, Just Run).launch b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/debug/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC (build-ch.elf)(OpenOCD, Just Run).launch
new file mode 100644
index 000000000..f60bdc5c1
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/debug/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC (build-ch.elf)(OpenOCD, Just Run).launch
@@ -0,0 +1,48 @@
+
+
+
+
+
+
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+
+
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+
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diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/main.c b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/main.c
new file mode 100644
index 000000000..9b6e0ffa6
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/main.c
@@ -0,0 +1,306 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+#include "sb.h"
+#include "chprintf.h"
+
+#include "rt_test_root.h"
+#include "oslib_test_root.h"
+
+#include "nullstreams.h"
+
+#include "startup_defs.h"
+
+#include "sdmon.h"
+
+/*===========================================================================*/
+/* VFS-related. */
+/*===========================================================================*/
+
+#if VFS_CFG_ENABLE_DRV_FATFS == TRUE
+/* VFS FatFS driver used by all file systems.*/
+static vfs_fatfs_driver_c fatfs_driver;
+#endif
+
+/* VFS overlay driver object representing the absolute root directory.*/
+static vfs_overlay_driver_c root_overlay_driver;
+
+/* Segregated roots for the two sandboxes.*/
+static vfs_overlay_driver_c sb1_root_overlay_driver;
+
+/* VFS streams driver objects representing the /dev private directories.*/
+static vfs_streams_driver_c sb1_dev_driver;
+
+/* VFS API will use this object as implicit root, defining this
+ symbol is expected.*/
+vfs_driver_c *vfs_root = (vfs_driver_c *)&root_overlay_driver;
+
+/* Used for /dev/null.*/
+static NullStream nullstream;
+
+/* Streams to be exposed under /dev as files.*/
+static const drv_streams_element_t sb1_streams[] = {
+ {"VSD1", (BaseSequentialStream *)&SD2},
+ {"null", (BaseSequentialStream *)&nullstream},
+ {NULL, NULL}
+};
+
+/*===========================================================================*/
+/* SB-related. */
+/*===========================================================================*/
+
+/* Sandbox 1 configuration.*/
+static const sb_config_t sb_config1 = {
+ .code_region = 0U,
+ .data_region = 1U,
+ .regions = {
+ [0] = {
+ .area = {STARTUP_FLASH1_BASE, STARTUP_FLASH1_SIZE},
+ .writeable = false
+ },
+ [1] = {
+ .area = {STARTUP_RAM1_BASE, STARTUP_RAM1_SIZE},
+ .writeable = true
+ }
+ },
+ .mpuregs = {
+ [0] = {
+ (uint32_t)STARTUP_RAM1_BASE, MPU_RASR_ATTR_AP_RW_RW |
+ MPU_RASR_ATTR_CACHEABLE_WB_WA |
+ MPU_RASR_SIZE_128K |
+ MPU_RASR_ENABLE
+ },
+ [1] = {
+ (uint32_t)0, (uint32_t)0
+ }
+ },
+ .vfs_driver = (vfs_driver_c *)&sb1_root_overlay_driver
+};
+
+/* Sandbox objects.*/
+sb_class_t sbx1;
+
+static THD_WORKING_AREA(waUnprivileged1, 1024);
+
+static thread_t *sb1tp;
+
+/*===========================================================================*/
+/* Main and generic code. */
+/*===========================================================================*/
+
+/*
+ * Green LED blinker thread, times are in milliseconds.
+ */
+static THD_WORKING_AREA(waThread1, 256);
+static THD_FUNCTION(Thread1, arg) {
+
+ (void)arg;
+
+ chRegSetThreadName("blinker");
+ while (true) {
+ palToggleLine(LINE_LED_GREEN);
+ chThdSleepMilliseconds(sdmon_ready ? 250 : 500);
+ }
+}
+
+/*
+ * SB termination event.
+ */
+static void SBHandler(eventid_t id) {
+
+ (void)id;
+
+ if (chThdTerminatedX(sb1tp)) {
+ chprintf((BaseSequentialStream *)&SD2, "SB1 terminated\r\n");
+ }
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+ event_listener_t elsb;
+ vfs_node_c *np;
+ msg_t ret;
+ static const evhandler_t evhndl[] = {
+ sdmonInsertHandler,
+ sdmonRemoveHandler,
+ SBHandler
+ };
+
+ /*
+ * 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.
+ * - Virtual File System initialization.
+ * - SandBox manager initialization.
+ */
+ halInit();
+ chSysInit();
+ vfsInit();
+ sbHostInit();
+
+ /*
+ * Starting a serial ports for I/O, initializing other streams too.
+ */
+ sdStart(&SD2, NULL);
+ nullObjectInit(&nullstream);
+
+ /*
+ * Activates the card insertion monitor.
+ */
+ sdmonInit();
+
+ /*
+ * Creating a blinker thread.
+ */
+ chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO+10, Thread1, NULL);
+
+ /*
+ * Initializing an overlay VFS object as a root on top of a FatFS driver.
+ * This is accessible from kernel space and covers the whole file system.
+ */
+ drvFatFSObjectInit(&fatfs_driver);
+ drvOverlayObjectInit(&root_overlay_driver, (vfs_driver_c *)&fatfs_driver, NULL);
+
+ /*
+ * Initializing overlay drivers for the two sandbox roots. Those also use
+ * the FatFS driver but are restricted to "/sb1" and "/sb2" directories.
+ */
+ drvOverlayObjectInit(&sb1_root_overlay_driver, (vfs_driver_c *)&fatfs_driver, "/sb1");
+// drvOverlayObjectInit(&sb2_root_overlay_driver, (vfs_driver_c *)&fatfs_driver, "/sb2");
+ ret = drvOverlayRegisterDriver(&sb1_root_overlay_driver,
+ drvStreamsObjectInit(&sb1_dev_driver, &sb1_streams[0]),
+ "dev");
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("VFS");
+ }
+// ret = drvOverlayRegisterDriver(&sb2_root_overlay_driver,
+// drvStreamsObjectInit(&sb2_dev_driver, &sb2_streams[0]),
+// "dev");
+// if (CH_RET_IS_ERROR(ret)) {
+// chSysHalt("VFS");
+// }
+
+ /*
+ * Initializing overlay driver for the directory shared among the sandboxes.
+ * It is seen as "/shared".
+ */
+#if 0
+ drvOverlayObjectInit(&sb_shared_overlay_driver, (vfs_driver_c *)&fatfs_driver, "/shared");
+ ret = drvOverlayRegisterDriver(&sb1_root_overlay_driver,
+ (vfs_driver_c *)&sb_shared_overlay_driver,
+ "shared");
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("VFS");
+ }
+ ret = drvOverlayRegisterDriver(&sb2_root_overlay_driver,
+ (vfs_driver_c *)&sb_shared_overlay_driver,
+ "shared");
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("VFS");
+ }
+#endif
+
+ /*
+ * Sandbox objects initialization.
+ */
+ sbObjectInit(&sbx1, &sb_config1);
+// sbObjectInit(&sbx2, &sb_config2);
+
+ /*
+ * Associating standard input, output and error to sandbox 1.
+ */
+ ret = vfsDrvOpen((vfs_driver_c *)&sb1_root_overlay_driver,
+ "/dev/VSD1", VO_RDWR, &np);
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("VFS");
+ }
+ sbPosixRegisterDescriptor(&sbx1, STDIN_FILENO, (vfs_node_c *)roAddRef(np));
+ sbPosixRegisterDescriptor(&sbx1, STDOUT_FILENO, (vfs_node_c *)roAddRef(np));
+ sbPosixRegisterDescriptor(&sbx1, STDERR_FILENO, (vfs_node_c *)roAddRef(np));
+ vfsClose(np);
+
+#if 0
+ /*
+ * Associating standard input, output and error to sandbox 1.
+ */
+ ret = vfsDrvOpen((vfs_driver_c *)&sb2_root_overlay_driver,
+ "/dev/VSD1", VO_RDWR, &np);
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("VFS");
+ }
+ sbPosixRegisterDescriptor(&sbx2, STDIN_FILENO, (vfs_node_c *)roAddRef(np));
+ sbPosixRegisterDescriptor(&sbx2, STDOUT_FILENO, (vfs_node_c *)roAddRef(np));
+ sbPosixRegisterDescriptor(&sbx2, STDERR_FILENO, (vfs_node_c *)roAddRef(np));
+ vfsClose(np);
+#endif
+
+ /* Starting sandboxed thread 1.*/
+ sb1tp = sbStartThread(&sbx1, "sbx1",
+ waUnprivileged1, sizeof (waUnprivileged1),
+ NORMALPRIO - 1);
+ if (sb1tp == NULL) {
+ chSysHalt("sbx1 failed");
+ }
+
+#if 0
+ /* Starting sandboxed thread 2.*/
+ sb2tp = sbStartThread(&sbx2, "sbx2",
+ waUnprivileged2, sizeof (waUnprivileged2),
+ NORMALPRIO - 1);
+ if (sb2tp == NULL) {
+ chSysHalt("sbx2 failed");
+ }
+#endif
+
+ /*
+ * Listening to sandbox events.
+ */
+ chEvtRegister(&sb.termination_es, &elsb, (eventid_t)2);
+
+ /*
+ * Normal main() thread activity, in this demo it monitors the user button
+ * and checks for sandboxes state.
+ */
+ while (true) {
+ chEvtDispatch(evhndl, chEvtWaitOneTimeout(ALL_EVENTS, TIME_MS2I(500)));
+
+ /* Checking for user button, launching sandbox if pressed.*/
+ if (palReadLine(LINE_BUTTON)) {
+ if (!sbIsThreadRunningX(&sbx1)) {
+ ret = sbElfLoadFile((vfs_driver_c *)&sb1_root_overlay_driver,
+ "/bin/app.elf",
+ &sbx1.config->regions[0].area);
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("ELF");
+ }
+ }
+#if 0
+ static uint8_t loadbuf[1024];
+ static memory_area_t ma = {loadbuf, sizeof (loadbuf)};
+ ret = sbElfLoadFile((vfs_driver_c *)&sb1_root_overlay_driver, "/bin/app.elf", &ma);
+ if (CH_RET_IS_ERROR(ret)) {
+ chSysHalt("ELF");
+ }
+#endif
+ }
+ }
+}
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/source/sdmon.c b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/source/sdmon.c
new file mode 100644
index 000000000..43dd1045c
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/source/sdmon.c
@@ -0,0 +1,151 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+#include "vfs.h"
+
+/*===========================================================================*/
+/* Module local definitions. */
+/*===========================================================================*/
+
+#define POLLING_INTERVAL 10
+#define POLLING_DELAY 10
+
+/*===========================================================================*/
+/* Module exported variables. */
+/*===========================================================================*/
+
+event_source_t sdmon_inserted_event, sdmon_removed_event;
+bool sdmon_ready;
+
+/*===========================================================================*/
+/* Module local types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local variables. */
+/*===========================================================================*/
+
+static virtual_timer_t tmr;
+static unsigned cnt;
+
+/*===========================================================================*/
+/* Module local functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Insertion monitor timer callback function.
+ *
+ * @param[in] p pointer to the @p BaseBlockDevice object
+ *
+ * @notapi
+ */
+static void tmrfunc(virtual_timer_t *vtp, void *p) {
+ BaseBlockDevice *bbdp = p;
+
+ chSysLockFromISR();
+
+ if (cnt > 0) {
+ if (blkIsInserted(bbdp)) {
+ if (--cnt == 0) {
+ chEvtBroadcastI(&sdmon_inserted_event);
+ }
+ }
+ else
+ cnt = POLLING_INTERVAL;
+ }
+ else {
+ if (!blkIsInserted(bbdp)) {
+ cnt = POLLING_INTERVAL;
+ chEvtBroadcastI(&sdmon_removed_event);
+ }
+ }
+ chVTSetI(vtp, TIME_MS2I(POLLING_DELAY), tmrfunc, bbdp);
+
+ chSysUnlockFromISR();
+}
+
+/*===========================================================================*/
+/* Module exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Polling monitor start.
+ *
+ * @notapi
+ */
+void sdmonInit(void) {
+ static event_listener_t el0, el1;
+
+ /* Activates the SDC driver using default configuration.*/
+ sdcStart(&SDCD1, NULL);
+
+ chEvtObjectInit(&sdmon_inserted_event);
+ chEvtObjectInit(&sdmon_removed_event);
+
+ chEvtRegister(&sdmon_inserted_event, &el0, (eventid_t)0);
+ chEvtRegister(&sdmon_removed_event, &el1, (eventid_t)1);
+
+ sdmon_ready = false;
+ cnt = POLLING_INTERVAL;
+ chVTSet(&tmr, TIME_MS2I(POLLING_DELAY), tmrfunc, (void *)&SDCD1);
+}
+
+/*
+ * Card insertion event.
+ */
+void sdmonInsertHandler(eventid_t id) {
+ msg_t err;
+
+ (void)id;
+
+#if HAL_USE_SDC
+ if (sdcConnect(&SDCD1)) {
+ return;
+ }
+#else
+ if (mmcConnect(&MMCD1)) {
+ return;
+ }
+#endif
+
+ err = drvFatFSMount("0:", 1);
+ if (CH_RET_IS_ERROR(err)) {
+#if HAL_USE_SDC
+ sdcDisconnect(&SDCD1);
+#else
+ if (mmcDisconnect(&MMCD1)) {
+#endif
+ return;
+ }
+ sdmon_ready = true;
+}
+
+/*
+ * Card removal event.
+ */
+void sdmonRemoveHandler(eventid_t id) {
+
+ (void)id;
+
+#if HAL_USE_SDC
+ sdcDisconnect(&SDCD1);
+#else
+ mmcDisconnect(&MMCD1);
+#endif
+ sdmon_ready = false;
+}
diff --git a/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/source/sdmon.h b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/source/sdmon.h
new file mode 100644
index 000000000..b22f16979
--- /dev/null
+++ b/demos/STM32/RT-STM32L4R9-DISCOVERY-RAM_SB_HOST_DYNAMIC/source/sdmon.h
@@ -0,0 +1,63 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#ifndef SDMON_H
+#define SDMON_H
+
+/*===========================================================================*/
+/* Module constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module data structures and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+extern event_source_t sdmon_inserted_event, sdmon_removed_event;
+extern bool sdmon_ready;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void sdmonInit(void);
+ void sdmonInsertHandler(eventid_t id);
+ void sdmonRemoveHandler(eventid_t id);
+#ifdef __cplusplus
+}
+#endif
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#endif /* SDMON_H */
+
+/** @} */
diff --git a/os/sb/host/sbelf.c b/os/sb/host/sbelf.c
index 62a9c8dc4..9207ccc29 100644
--- a/os/sb/host/sbelf.c
+++ b/os/sb/host/sbelf.c
@@ -94,7 +94,7 @@ typedef struct {
*/
typedef struct elf_load_context {
vfs_file_node_c *fnp;
- memory_area_t *map;
+ const memory_area_t *map;
uint8_t *next;
uint32_t entry;
@@ -430,7 +430,7 @@ static msg_t load_relocate_section(elf_load_context_t *ctxp,
static msg_t init_elf_context(elf_load_context_t *ctxp,
vfs_file_node_c *fnp,
- memory_area_t *map) {
+ const memory_area_t *map) {
static uint8_t elf32_header[16] = {
0x7f, 0x45, 0x4c, 0x46, 0x01, 0x01, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
@@ -471,7 +471,7 @@ static msg_t init_elf_context(elf_load_context_t *ctxp,
/* Module exported functions. */
/*===========================================================================*/
-msg_t sbElfLoad(vfs_file_node_c *fnp, memory_area_t *map) {
+msg_t sbElfLoad(vfs_file_node_c *fnp, const memory_area_t *map) {
msg_t ret;
do {
@@ -582,7 +582,9 @@ msg_t sbElfLoad(vfs_file_node_c *fnp, memory_area_t *map) {
return ret;
}
-msg_t sbElfLoadFile(vfs_driver_c *drvp, const char *path, memory_area_t *map) {
+msg_t sbElfLoadFile(vfs_driver_c *drvp,
+ const char *path,
+ const memory_area_t *map) {
vfs_file_node_c *fnp;
msg_t ret;
diff --git a/os/sb/host/sbelf.h b/os/sb/host/sbelf.h
index 773b07f11..62ca61c9e 100644
--- a/os/sb/host/sbelf.h
+++ b/os/sb/host/sbelf.h
@@ -57,8 +57,11 @@
#ifdef __cplusplus
extern "C" {
#endif
- msg_t sbElfLoad(vfs_file_node_c *fnp, memory_area_t *map);
- msg_t sbElfLoadFile(vfs_driver_c *drvp, const char *path, memory_area_t *map);
+ msg_t sbElfLoad(vfs_file_node_c *fnp,
+ const memory_area_t *map);
+ msg_t sbElfLoadFile(vfs_driver_c *drvp,
+ const char *path,
+ const memory_area_t *map);
#ifdef __cplusplus
}
#endif
diff --git a/os/sb/host/sbhost.c b/os/sb/host/sbhost.c
index fdcd4a0e4..be7b46ce0 100644
--- a/os/sb/host/sbhost.c
+++ b/os/sb/host/sbhost.c
@@ -172,6 +172,50 @@ thread_t *sbStartThread(sb_class_t *sbcp, const char *name,
return utp;
}
+/**
+ * @brief Verifies if the sandbox thread is running.
+ *
+ * @param[in] sbcp pointer to a @p sb_class_t structure
+ * @return The thread status.
+ *
+ * @api
+ */
+bool sbIsThreadRunningX(sb_class_t *sbcp) {
+
+ if (sbcp->tp == NULL) {
+ return false;
+ }
+
+ return chThdTerminatedX(sbcp->tp);
+}
+
+#if (CH_CFG_USE_WAITEXIT == TRUE) || defined(__DOXYGEN__)
+/**
+ * @brief Blocks the execution of the invoking thread until the specified
+ * sandbox thread terminates then the exit code is returned.
+ * @pre The configuration option @p CH_CFG_USE_WAITEXIT must be enabled in
+ * order to use this function.
+ *
+ * @param[in] sbcp pointer to a @p sb_class_t structure
+ * @return The exit code from the terminated sandbox thread.
+ * @retval MSG_RESET Sandbox thread not started.
+ *
+ * @api
+ */
+msg_t sbWaitThread(sb_class_t *sbcp) {
+ msg_t msg;
+
+ if (sbcp->tp == NULL) {
+ return MSG_RESET;
+ }
+
+ msg = chThdWait(sbcp->tp);
+ sbcp->tp = NULL;
+
+ return msg;
+}
+#endif
+
#if (CH_CFG_USE_MESSAGES == TRUE) || defined(__DOXYGEN__)
/**
* @brief Sends a message to a sandboxed thread.
diff --git a/os/sb/host/sbhost.h b/os/sb/host/sbhost.h
index d25bc34cb..af17fd36f 100644
--- a/os/sb/host/sbhost.h
+++ b/os/sb/host/sbhost.h
@@ -95,9 +95,15 @@ extern "C" {
thread_t *sbStartThread(sb_class_t *sbcp, const char *name,
void *wsp, size_t size,
tprio_t prio);
+ bool sbIsThreadRunningX(sb_class_t *sbcp);
+#if CH_CFG_USE_WAITEXIT == TRUE
+ msg_t sbWaitThread(sb_class_t *sbcp);
+#endif
+#if CH_CFG_USE_MESSAGES == TRUE
msg_t sbSendMessageTimeout(sb_class_t *sbcp,
msg_t msg,
sysinterval_t timeout);
+#endif
#ifdef __cplusplus
}
#endif
@@ -118,24 +124,6 @@ static inline void sbHostInit(void) {
#endif
}
-#if (CH_CFG_USE_WAITEXIT == TRUE) || defined(__DOXYGEN__)
-/**
- * @brief Blocks the execution of the invoking thread until the sandbox
- * thread terminates then the exit code is returned.
- * @pre The configuration option @p CH_CFG_USE_WAITEXIT must be enabled in
- * order to use this function.
- *
- * @param[in] sbcp pointer to the sandbox object
- * @return The exit code from the terminated thread.
- *
- * @api
- */
-static inline msg_t sbWait(sb_class_t *sbcp) {
-
- return chThdWait(sbcp->tp);
-}
-#endif /* CH_CFG_USE_WAITEXIT == TRUE */
-
#if (CH_CFG_USE_MESSAGES == TRUE) || defined(__DOXYGEN__)
/**
* @brief Sends a message to a sandboxed thread.