diff --git a/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig b/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig
index 2e0325b97ed..00b86f9ae55 100644
--- a/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig
+++ b/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig
@@ -5,4 +5,63 @@
 
 if ARCH_BOARD_MEADOW_F7MICRO
 
+config HCOM_FILESYSTEM_INIT
+    bool "Enables HCOM FS initialization support"
+    default y
+
+config HCOM_MTD_STRESS_TEST
+    bool "Enables HCOM MTD stress testing support"
+    default n
+
+config HCOM_MONO_STDERR_STDOUT
+    bool "Enables HCOM routing of Mono stdout and stderr to PC/Mac"
+    default y
+
+config HCOM_MONO_REMOTE_DEBUGGING
+    bool "Enables HCOM Mono remote debugging support"
+    default y
+
+config HCOM_COMMS_DEVICE_NAME
+    string "Specifies the device name for HCOM communications"
+    default "/dev/ttyACM0"
+
+config MEADOW_CLOUD
+    string "Enables Meadow Cloud support"
+    default y
+
+config MEADOW_ETHNET_INCLUDE_IN_BUILD
+    bool "Build Meadow and include Ethernet for compute module"
+    default n
+    ---help---
+    This must be used with a 'defconfig' file that includes the correct Ethernet configuration.
+
+config HCOM_ESP32_COMMS
+    bool "Enables HCOM file download to the ESP32"
+    default y
+
+menu "ESP32 Coprocessor Configuration"
+source "boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig-ESP32"
+endmenu
+
+config ARCH_BOARD_MEADOW
+    bool "Enables Meadow board features"
+    default y
+
+# See meadow-adc.c file, currently unused.
+config MEADOW_ADC
+    bool "Enables Meadow ADC support"
+
+config MEADOW_HCOM
+    bool "Enables Meadow HCOM support"
+    default n
+
+config MEADOW_TIMER_SUPPORT
+    bool "Enables Meadow timer support"
+    default n
+
+config MEADOW_PWR_MGMT_SUPPORT
+    bool "Enables Meadow power management support"
+    default n
+
+
 endif # ARCH_BOARD_MEADOW_F7MICRO
diff --git a/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig-ESP32 b/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig-ESP32
new file mode 100644
index 00000000000..2451240fce4
--- /dev/null
+++ b/boards/arm/stm32f7/stm32f777zit6-meadow/Kconfig-ESP32
@@ -0,0 +1,31 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config MEADOW_ESPCP_MANAGER
+    bool "Enable ESP32 Coprocessor"
+    default y
+    ---help---
+        Enable or disable ESP32 coprocessor support.
+
+if MEADOW_ESPCP_MANAGER
+
+config MEADOW_ESPCP_USE_EXTERNAL_ESP32_BOARD
+    bool "Use external ESP32 chip"
+    default n
+    ---help---
+        Use an external ESP32 for debugging purposes.
+
+config MEADOW_ESPCP_RESET_ESP32_AT_STARTUP
+    bool "Reset the ESP32 at startup?"
+    default y
+    ---help---
+        Should the ESP32 be reset as part of the startup process.  The default for production
+        is "Y".  For development it is sometimes necessary to attach a debugger to the ESP32
+        and in this case resetting the chip interferes with debugging.
+
+        For debugging set this to Y
+        For production set this to N (default).
+        
+endif
diff --git a/boards/arm/stm32f7/stm32f777zit6-meadow/configs/meadow_os/defconfig b/boards/arm/stm32f7/stm32f777zit6-meadow/configs/meadow_os/defconfig
new file mode 100644
index 00000000000..6963db3ac4d
--- /dev/null
+++ b/boards/arm/stm32f7/stm32f777zit6-meadow/configs/meadow_os/defconfig
@@ -0,0 +1,57 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_STM32F7_USE_LEGACY_PINMAP is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="stm32f777zit6-meadow"
+CONFIG_ARCH_BOARD_MEADOW_F7MICRO=y
+CONFIG_ARCH_CHIP="stm32f7"
+CONFIG_ARCH_CHIP_STM32F777ZI=y
+CONFIG_ARCH_CHIP_STM32F7=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARMV7M_DCACHE=y
+CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y
+CONFIG_ARMV7M_DTCM=y
+CONFIG_ARMV7M_ICACHE=y
+CONFIG_BCH=y
+CONFIG_BOARDCTL_USBDEVCTRL=y
+CONFIG_BOARD_LATE_INITIALIZE=y
+CONFIG_BOARD_LOOPSPERMSEC=43103
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_CONSOLE=y
+CONFIG_CDCACM_PRODUCTID=0x0001
+CONFIG_CDCACM_PRODUCTSTR="Wilderness Labs"
+CONFIG_CDCACM_VENDORID=0x2E6A
+CONFIG_CDCACM_VENDORSTR="Meadow F7 Micro"
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_RANDOM_POOL=y
+CONFIG_DEV_URANDOM=y
+CONFIG_DEV_URANDOM_RANDOM_POOL=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MEADOW_HCOM=y
+CONFIG_MM_REGIONS=3
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=245760
+CONFIG_RAM_START=0x20010000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=14
+CONFIG_STM32F7_OTGFS=y
+CONFIG_STM32F7_USART1=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=64
+CONFIG_USBDEV=y
diff --git a/boards/arm/stm32f7/stm32f777zit6-meadow/scripts/Make.defs b/boards/arm/stm32f7/stm32f777zit6-meadow/scripts/Make.defs
index 4d611ac2cbd..898b4bcc8dc 100644
--- a/boards/arm/stm32f7/stm32f777zit6-meadow/scripts/Make.defs
+++ b/boards/arm/stm32f7/stm32f777zit6-meadow/scripts/Make.defs
@@ -27,7 +27,7 @@ ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
 
 ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
 
-CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe -I $(BOARD_DIR)$(DELIM)src -I $(BOARD_DIR)$(DELIM)src/Meadow.OS/include
 CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
 CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
 CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
diff --git a/boards/arm/stm32f7/stm32f777zit6-meadow/src/Makefile b/boards/arm/stm32f7/stm32f777zit6-meadow/src/Makefile
index b34c3bb61be..b1667cfe6ed 100644
--- a/boards/arm/stm32f7/stm32f777zit6-meadow/src/Makefile
+++ b/boards/arm/stm32f7/stm32f777zit6-meadow/src/Makefile
@@ -20,6 +20,7 @@
 
 include $(TOPDIR)/Make.defs
 
+
 CSRCS = stm32_boot.c stm32_bringup.c stm32_spi.c
 
 ifeq ($(CONFIG_ARCH_LEDS),y)
@@ -57,4 +58,127 @@ else ifeq ($(CONFIG_STM32F7_OTGFSHS),y)
 CSRCS += stm32_usb.c
 endif
 
+ifeq ($(CONFIG_USBMSC),y)
+CSRCS += stm32_usbmsc.c
+endif
+
+ifeq ($(CONFIG_ARCH_IDLE_CUSTOM),y)
+CSRCS += stm32_idle.c
+endif
+
+ifeq ($(CONFIG_STM32F7_SDMMC2),y)
+CSRCS += meadow_sdmmc.c
+endif
+
+ifdef MEADOW_OS
+
+# Enable Meadow.OS build (WORK IN PROGRESS)
+
+MEADOW_OS_DIR=Meadow.OS
+CFLAGS += -DMEADOW_OS
+
+ifeq ($(CONFIG_MEADOW_HCOM),y)
+CSRCS += $(MEADOW_OS_DIR)/hcom_nx/hcom_nx_upd.c \
+$(MEADOW_OS_DIR)/hcom_nx/hcom_nx_startup_mgr.c \
+$(MEADOW_OS_DIR)/hcom_nx/hcom_nx_common_utils.c \
+$(MEADOW_OS_DIR)/hcom_nx/hcom_nx_bbreg_access.c \
+$(MEADOW_OS_DIR)/hcom_nx/hcom_nx_upd_route_cmd.c \
+$(MEADOW_OS_DIR)/hcom_nx/hcom_nx_config_manager.c \
+$(MEADOW_OS_DIR)/hcom_nx/commands/hcom_nx_ex_flash.c \
+$(MEADOW_OS_DIR)/hcom_nx/comms/hcom_nx_host_send.c \
+$(MEADOW_OS_DIR)/hcom_nx/create_fs/hcom_nx_fs.c \
+$(MEADOW_OS_DIR)/hcom_nx/create_fs/hcom_nx_fs_littlefs.c \
+$(MEADOW_OS_DIR)/hcom_nx/diag/hcom_nx_route_text_to_host.c \
+$(MEADOW_OS_DIR)/hcom_nx/diag/hcom_nx_trace_msg_proc.c \
+$(MEADOW_OS_DIR)/hcom_nx/tests/hcom_nx_qspi_flash_tests.c
+
+ifeq ($(CONFIG_ARCH_IDLE_CUSTOM),y)
+CSRCS +=  $(MEADOW_OS_DIR)/misc/meadow_idle_monitor.c
+endif
+
+ifeq ($(CONFIG_MEADOW_PWR_MGMT_SUPPORT),y)
+CSRCS += $(MEADOW_OS_DIR)/pwrmgmt_calib_lsi_clock.c \
+$(MEADOW_OS_DIR)/pwrmgmt_config_wakeup_timer.c \
+$(MEADOW_OS_DIR)/pwrmgmt_config_wakeup_alarm.c \
+$(MEADOW_OS_DIR)/pwrmgmt_control.c \
+$(MEADOW_OS_DIR)/pwrmgmt_enter_stop_mode.c \
+$(MEADOW_OS_DIR)/pwrmgmt_misc.c \
+$(MEADOW_OS_DIR)/pwrmgmt_switch_rtc_clock.c \
+$(MEADOW_OS_DIR)/pwrmgmt_time_support.c
+endif
+
+ifeq ($(CONFIG_MEADOW_TIMER_SUPPORT),y)
+CSRCS += $(MEADOW_OS_DIR)/timers/timer_manager.c \
+$(MEADOW_OS_DIR)/timers/cpu_measure.c \
+$(MEADOW_OS_DIR)/timers/pulse_width.c \
+$(MEADOW_OS_DIR)/timers/freq_duty.c \
+$(MEADOW_OS_DIR)/timers/rc_servo_decode.c \
+$(MEADOW_OS_DIR)/timers/lsi_clk_freq_measure.c
+endif
+
+CSRCS += $(MEADOW_OS_DIR)/ethernet/meadow_ethnet_start.c \
+$(MEADOW_OS_DIR)/ethernet/meadow_ethnet_utils.c \
+$(MEADOW_OS_DIR)/ethernet/meadow_ethnet_connect.c \
+$(MEADOW_OS_DIR)/ethernet/meadow_ethnet_monitor.c \
+$(MEADOW_OS_DIR)/ethernet/meadow_ethnet_dhcp.c \
+$(MEADOW_OS_DIR)/ethernet/meadow_ethnet_ping.c
+
+ifeq ($(CONFIG_MEADOW_ESPCP_MANAGER),y)
+CSRCS += $(MEADOW_OS_DIR)/espcp/espcp_thread.c \
+$(MEADOW_OS_DIR)/espcp/espcp_queue.c \
+$(MEADOW_OS_DIR)/espcp/espcp_encoders.c \
+$(MEADOW_OS_DIR)/espcp/espcp_message.c \
+$(MEADOW_OS_DIR)/espcp/espcp_message_dispatcher.c \
+$(MEADOW_OS_DIR)/espcp/generic_list.c \
+$(MEADOW_OS_DIR)/espcp/espcp_coprocessor.c \
+$(MEADOW_OS_DIR)/espcp/espcp_wifi.c \
+$(MEADOW_OS_DIR)/espcp/espcp_system.c \
+$(MEADOW_OS_DIR)/espcp/espcp_common.c \
+$(MEADOW_OS_DIR)/espcp/espcp_usrsock_sockif.c \
+$(MEADOW_OS_DIR)/espcp/espcp_event_handlers.c \
+$(MEADOW_OS_DIR)/espcp/espcp_file_system.c
+endif
+
+CSRCS += $(MEADOW_OS_DIR)/kerneltests/espcp_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/ethernet_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/bg77_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/network_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/sdcard_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/power_management_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/iso8601_time_tests.c \
+$(MEADOW_OS_DIR)/kerneltests/quick_misc_tests.c
+#
+#	Add the NTP client.
+#
+CSRCS += $(MEADOW_OS_DIR)/ntpclient/ntpclient.c $(MEADOW_OS_DIR)/misc/long_period_scheduler.c
+
+#
+#	Add the Meadow logging system.
+#
+CSRCS += $(MEADOW_OS_DIR)/misc/meadow_logging.c
+
+
+#
+#	The libyaml library is required by cyaml.
+#
+CSRCS += $(MEADOW_OS_DIR)/libyaml/api.c $(MEADOW_OS_DIR)/libyaml/dumper.c $(MEADOW_OS_DIR)/libyaml/emitter.c $(MEADOW_OS_DIR)/libyaml/loader.c \
+		 $(MEADOW_OS_DIR)/libyaml/parser.c $(MEADOW_OS_DIR)/libyaml/reader.c $(MEADOW_OS_DIR)/libyaml/scanner.c $(MEADOW_OS_DIR)/libyaml//writer.c
+#
+#	The cyaml library maps the items from the libyaml output to the structures used by the application.
+#
+CSRCS += $(MEADOW_OS_DIR)/libcyaml/mem.c $(MEADOW_OS_DIR)/libcyaml/free.c $(MEADOW_OS_DIR)/libcyaml/load.c $(MEADOW_OS_DIR)/libcyaml/save.c $(MEADOW_OS_DIR)/libcyaml/util.c $(MEADOW_OS_DIR)/libcyaml/utf8.c
+
+#
+#	Add Meadow Cloud support
+#
+CSRCS += $(MEADOW_OS_DIR)/meadow_cloud/meadow_cloud.c
+
+#
+#	Add Meadow OS syscall implementations.
+#
+CSRCS += $(MEADOW_OS_DIR)/meadow_os/meadow_os_config.c
+
+endif
+endif # MEADOW_OS
+
 include $(TOPDIR)/boards/Board.mk
diff --git a/boards/arm/stm32f7/stm32f777zit6-meadow/src/stm32_boot.c b/boards/arm/stm32f7/stm32f777zit6-meadow/src/stm32_boot.c
index 8aaa0554c41..ad55745f70d 100644
--- a/boards/arm/stm32f7/stm32f777zit6-meadow/src/stm32_boot.c
+++ b/boards/arm/stm32f7/stm32f777zit6-meadow/src/stm32_boot.c
@@ -25,6 +25,7 @@
 #include <nuttx/config.h>
 
 #include <debug.h>
+#include <assert.h>
 
 #include <nuttx/board.h>
 #include <arch/board/board.h>
@@ -163,8 +164,20 @@ void board_late_initialize(void)
    *
    * stm32_mpu_uheap((uintptr_t)0x90000000, 0x4000000);
    */
-#endif
 
+#endif
+#if defined(MEADOW_OS)
+  /* Initialize Meadow HCOM nuttx */
+
+  int ret;
+  ret = hcom_nx_setup_mgr(mtd);
+  if (ret < 0)
+    {
+      syslog(LOG_EMERG, "ERROR: HCOM proxy initialization failed!\n");
+      PANIC();
+    }
+
+#endif
 #if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_BOARDCTL)
   /* Perform NSH initialization here instead of from the NSH.  This
    * alternative NSH initialization is necessary when NSH is ran in