#7 Add example for STM32F4

.gitmodules

@@ -0,0 +1,18 @@
+[submodule "examples/stm32f1_usb_serial/Lib/Stm32Serial"]
+	path = examples/stm32f1_usb_serial/Lib/Stm32Serial
+	url = https://github.com/libsmart/Stm32Serial.git
+[submodule "examples/stm32f1_usb_serial/Lib/Stm32Common"]
+	path = examples/stm32f1_usb_serial/Lib/Stm32Common
+	url = https://github.com/libsmart/Stm32Common.git
+[submodule "examples/stm32f4_usb_serial/Lib/Stm32Common"]
+	path = examples/stm32f4_usb_serial/Lib/Stm32Common
+	url = https://github.com/libsmart/Stm32Common.git
+[submodule "examples/stm32f4_usb_serial/Lib/Stm32ItmLogger"]
+	path = examples/stm32f4_usb_serial/Lib/Stm32ItmLogger
+	url = https://github.com/libsmart/Stm32ItmLogger.git
+[submodule "examples/stm32f4_usb_serial/Lib/Stm32ThreadxThread"]
+	path = examples/stm32f4_usb_serial/Lib/Stm32ThreadxThread
+	url = https://github.com/libsmart/Stm32ThreadxThread.git
+[submodule "examples/stm32f4_usb_serial/Lib/Stm32UsbX"]
+	path = examples/stm32f4_usb_serial/Lib/Stm32UsbX
+	url = https://github.com/libsmart/Stm32UsbX.git

examples/stm32f4_usb_serial/.editorconfig

@@ -0,0 +1,16 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+trim_trailing_whitespace = true
+
+[{Core,Drivers,LWIP,Middlewares,USB_DEVICE}/**.{c,h}]
+indent_size = 2
+tab_width = 2
+

examples/stm32f4_usb_serial/.gitignore

@@ -0,0 +1,79 @@
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+/git_rev_macro.txt

examples/stm32f4_usb_serial/.project

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>stm32f4_usb_serial</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+			<triggers>clean,full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+			<triggers>full,incremental,</triggers>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>com.st.stm32cube.ide.mcu.MCUProjectNature</nature>
+		<nature>org.eclipse.cdt.core.cnature</nature>
+		<nature>com.st.stm32cube.ide.mcu.MCUCubeIdeServicesRevAev2ProjectNature</nature>
+		<nature>com.st.stm32cube.ide.mcu.MCUCubeProjectNature</nature>
+		<nature>com.st.stm32cube.ide.mcu.MCUAdvancedStructureProjectNature</nature>
+		<nature>com.st.stm32cube.ide.mcu.MCUSingleCpuProjectNature</nature>
+		<nature>com.st.stm32cube.ide.mcu.MCURootProjectNature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+	</natures>
+</projectDescription>

examples/stm32f4_usb_serial/AZURE_RTOS/App/app_azure_rtos.c

@@ -0,0 +1,135 @@
+
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    app_azure_rtos.c
+  * @author  MCD Application Team
+  * @brief   azure_rtos application implementation file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2021 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "app_azure_rtos.h"
+
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN PTD */
+
+/* USER CODE END PTD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN TX_Pool_Buffer */
+/* USER CODE END TX_Pool_Buffer */
+static UCHAR tx_byte_pool_buffer[TX_APP_MEM_POOL_SIZE];
+static TX_BYTE_POOL tx_app_byte_pool;
+
+/* USER CODE BEGIN UX_Device_Pool_Buffer */
+/* USER CODE END UX_Device_Pool_Buffer */
+static UCHAR  ux_device_byte_pool_buffer[UX_DEVICE_APP_MEM_POOL_SIZE];
+static TX_BYTE_POOL ux_device_app_byte_pool;
+
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/**
+  * @brief  Define the initial system.
+  * @param  first_unused_memory : Pointer to the first unused memory
+  * @retval None
+  */
+VOID tx_application_define(VOID *first_unused_memory)
+{
+  /* USER CODE BEGIN  tx_application_define */
+
+  /* USER CODE END  tx_application_define */
+
+  VOID *memory_ptr;
+
+  if (tx_byte_pool_create(&tx_app_byte_pool, "Tx App memory pool", tx_byte_pool_buffer, TX_APP_MEM_POOL_SIZE) != TX_SUCCESS)
+  {
+    /* USER CODE BEGIN TX_Byte_Pool_Error */
+
+    /* USER CODE END TX_Byte_Pool_Error */
+  }
+  else
+  {
+    /* USER CODE BEGIN TX_Byte_Pool_Success */
+
+    /* USER CODE END TX_Byte_Pool_Success */
+
+    memory_ptr = (VOID *)&tx_app_byte_pool;
+
+    if (App_ThreadX_Init(memory_ptr) != TX_SUCCESS)
+    {
+      /* USER CODE BEGIN  App_ThreadX_Init_Error */
+
+      /* USER CODE END  App_ThreadX_Init_Error */
+    }
+
+    /* USER CODE BEGIN  App_ThreadX_Init_Success */
+
+    /* USER CODE END  App_ThreadX_Init_Success */
+
+  }
+
+  if (tx_byte_pool_create(&ux_device_app_byte_pool, "Ux App memory pool", ux_device_byte_pool_buffer, UX_DEVICE_APP_MEM_POOL_SIZE) != TX_SUCCESS)
+  {
+    /* USER CODE BEGIN UX_Device_Byte_Pool_Error */
+
+    /* USER CODE END UX_Device_Byte_Pool_Error */
+  }
+  else
+  {
+    /* USER CODE BEGIN UX_Device_Byte_Pool_Success */
+
+    /* USER CODE END UX_Device_Byte_Pool_Success */
+
+    memory_ptr = (VOID *)&ux_device_app_byte_pool;
+
+    if (MX_USBX_Device_Init(memory_ptr) != UX_SUCCESS)
+    {
+      /* USER CODE BEGIN MX_USBX_Device_Init_Error */
+
+      /* USER CODE END MX_USBX_Device_Init_Error */
+    }
+
+    /* USER CODE BEGIN MX_USBX_Device_Init_Success */
+
+    /* USER CODE END MX_USBX_Device_Init_Success */
+  }
+}
+
+/* USER CODE BEGIN  0 */
+
+/* USER CODE END  0 */