Add license notice

This file was orignally added in v0.0.1, somehow messed up git history and it got deleted. This is a reupload

Core/Inc/canlog.h

@@ -18,14 +18,17 @@
 /* Define to prevent recursive inclusion -------------------------------------*/
 #ifndef CANLOG_H
 #define CANLOG_H
-
+/* Includes ------------------------------------------------------------------*/
 #include "main.h"
 #include "cmsis_os.h"
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+#define LED_BLINK_MS 25U
+/* USER CODE END PD */
 
 extern osMessageQueueId_t xCAN1RxQueue;
 extern osMessageQueueId_t xCAN2RxQueue;
-extern osSemaphoreId_t xSemaphoreCAN1;
+extern osMessageQueueId_t xUARTQueue;
-extern osSemaphoreId_t xSemaphoreCAN2;
 
 /* USER CODE BEGIN PTD */
 typedef struct {
@@ -38,24 +41,15 @@ typedef struct {
     uint8_t  payload[8];
     uint8_t  dlc;
     uint8_t  isExtended;
+    uint8_t  source;
     //uint32_t timestamp; //Enable TIM2: 42 MHz / (41+1) = 1 MHz → 1 µs tick; 32bit autoreload freerunning
     // this is for getting timestamps on can messages
 } CanMessage_t;
-
-typedef struct {
-    LED_Config *led;
-    osSemaphoreId_t semaphore;
-} LEDContext;
 /* USER CODE END PTD */
 
-/**
-  * @brief  Initializes the CAN logger modules, OS threads, queues, and hardware.
-  * @param  hcan1 Pointer to the CAN1 handle
-  * @param  hcan2 Pointer to the CAN2 handle
-  */
 void CAN_Logger_Init(CAN_HandleTypeDef *hcan1, CAN_HandleTypeDef *hcan2);
 void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *hcan);
-void vCANLoggerListen(void *argument);
+void vCANListener(void *argument);
 void vLEDHeartbeat(void *argument);
 
 #endif /* CANLOG_H */

Core/Inc/cansend.h

@@ -0,0 +1,28 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : CANSEND.h
+  * @brief          : Header for cansend.c file.
+  *                   This file contains the defines related to CAN data sent
+  *                   via UART/USART and save via .
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 Erick Ahmed.
+  *
+  * SPDX-License-Identifier: GPL-3.0-or-later
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef CANSEND_H
+#define CANSEND_H
+
+#include "main.h"
+
+void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
+void vUARTLogger(void *argument);
+
+#endif /* CANSEND_H */

Core/Inc/main.h

@@ -26,11 +26,11 @@ extern "C" {
 
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f4xx_hal.h"
-#include "canlog.h"
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
-
+#include <stdint.h>
+#include "canlog.h"
 /* USER CODE END Includes */
 
 /* Exported types ------------------------------------------------------------*/
@@ -45,7 +45,15 @@ extern "C" {
 
 /* Exported macro ------------------------------------------------------------*/
 /* USER CODE BEGIN EM */
+//#define DEBUG_ITM
+//#define DEBUG_DUMMY_FRAME
 
+#ifdef DEBUG_ITM
+#include <stdio.h>
+#define DEBUG_PRINT(...) printf(__VA_ARGS__)
+#else
+#define DEBUG_PRINT(...)
+#endif
 /* USER CODE END EM */
 
 /* Exported functions prototypes ---------------------------------------------*/

Core/Inc/stm32f4xx_hal_conf.h

@@ -64,7 +64,7 @@
 /* #define HAL_MMC_MODULE_ENABLED */
 /* #define HAL_SPI_MODULE_ENABLED */
 #define HAL_TIM_MODULE_ENABLED
-/* #define HAL_UART_MODULE_ENABLED */
+#define HAL_UART_MODULE_ENABLED
 /* #define HAL_USART_MODULE_ENABLED */
 /* #define HAL_IRDA_MODULE_ENABLED */
 /* #define HAL_SMARTCARD_MODULE_ENABLED */

Core/Inc/stm32f4xx_it.h

@@ -52,10 +52,12 @@ void MemManage_Handler(void);
 void BusFault_Handler(void);
 void UsageFault_Handler(void);
 void DebugMon_Handler(void);
+void USART1_IRQHandler(void);
 void SDIO_IRQHandler(void);
 void TIM6_DAC_IRQHandler(void);
 void DMA2_Stream3_IRQHandler(void);
 void DMA2_Stream6_IRQHandler(void);
+void DMA2_Stream7_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Src/ThreadSafe/newlib_lock_glue.c

@@ -1,435 +0,0 @@
-/**
-  ******************************************************************************
-  * @file      newlib_lock_glue.c
-  * @author    STMicroelectronics
-  * @brief     Implementation of newlib lock interface
-  *
-  * @details   This file implements locking glue necessary to protect C library
-  *            functions and initialization of local static objects in C++.
-  *            Lock strategies are defined in stm32_lock.h that implements
-  *            different level of thread-safety.
-  *
-  *            For more information about which C functions need which of these
-  *            low level functions, please consult the newlib libc manual,
-  *            see https://sourceware.org/newlib/libc.html
-  *
-  *            For more information about the one-time construction API for C++,
-  *            see https://itanium-cxx-abi.github.io/cxx-abi/abi.html#once-ctor
-  *
-  ******************************************************************************
-  * @attention
-  *
-  * Copyright (c) 2026 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.
-  *
-  ******************************************************************************
-  */
-
-#if !defined (__GNUC__) || defined (__CC_ARM)
-#error "newlib_lock_glue.c" should be used with GNU Compilers only
-#endif /* !defined (__GNUC__) || defined (__CC_ARM) */
-
-/* Includes ------------------------------------------------------------------*/
-#include <cmsis_compiler.h>
-
-/* Private functions prototypes ----------------------------------------------*/
-__WEAK void Error_Handler(void);
-/* Private functions ---------------------------------------------------------*/
-
-/**
-  * @brief Global Error_Handler
-  */
-__WEAK void Error_Handler(void)
-{
-  /* Not used if it exists in project */
-  while (1);
-}
-
-#ifdef __SINGLE_THREAD__
-#warning C library is in single-threaded mode. Please take care when using C library functions in threaded contexts
-#else
-
-/* Includes ------------------------------------------------------------------*/
-#include <newlib.h>
-#include <stdatomic.h>
-#include "stm32_lock.h"
-
-/**
-  * @defgroup _newlib_lock_functions newlib library locks
-  * @see https://sourceware.org/newlib/libc.html
-  * @{
-  */
-
-#if __NEWLIB__ >= 3 && defined (_RETARGETABLE_LOCKING)
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/lock.h>
-
-/* Private macros ------------------------------------------------------------*/
-/** See struct __lock definition */
-#define STM32_LOCK_PARAMETER(lock) (&(lock)->lock_data)
-
-/* shared variables for bare metal allow lock ------------------------------------------------------*/
-#if defined(STM32_THREAD_SAFE_BAREMETAL_ALLOW_LOCKS) && (STM32_THREAD_SAFE_BAREMETAL_ALLOW_LOCKS != 0)
-uint32_t gflag = 0;
-uint32_t call_counter = 0;
-#endif /* defined(STM32_THREAD_SAFE_BAREMETAL_ALLOW_LOCKS) && (STM32_THREAD_SAFE_BAREMETAL_ALLOW_LOCKS != 0) */
-
-/* Private variables ---------------------------------------------------------*/
-struct __lock
-{
-  LockingData_t lock_data; /**< The STM32 lock instance */
-};
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___sinit_recursive_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___sfp_recursive_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___atexit_recursive_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___at_quick_exit_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___malloc_recursive_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___env_recursive_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___tz_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___dd_hash_mutex = { LOCKING_DATA_INIT };
-
-/** Implementing mutex from <a href="https://sourceware.org/git/?p=newlib-cygwin.git;a=blob_plain;f=newlib/libc/misc/lock.c">newlib/libc/misc/lock.c</a> */
-struct __lock __lock___arc4random_mutex = { LOCKING_DATA_INIT };
-
-/* Private functions ---------------------------------------------------------*/
-
-/**
-  * @brief Initialize lock
-  * @param lock The lock
-  */
-void __retarget_lock_init(_LOCK_T *lock)
-{
-  __retarget_lock_init_recursive(lock);
-}
-
-/**
-  * @brief Initialize recursive lock
-  * @param lock The lock
-  */
-void __retarget_lock_init_recursive(_LOCK_T *lock)
-{
-  if (lock == NULL)
-  {
-    errno = EINVAL;
-    return;
-  }
-
-  *lock = (_LOCK_T)malloc(sizeof(struct __lock));
-  if (*lock != NULL)
-  {
-    stm32_lock_init(STM32_LOCK_PARAMETER(*lock));
-    return;
-  }
-
-  /* Unable to allocate memory */
-  STM32_LOCK_BLOCK();
-}
-
-/**
-  * @brief Close lock
-  * @param lock The lock
-  */
-void __retarget_lock_close(_LOCK_T lock)
-{
-  __retarget_lock_close_recursive(lock);
-}
-
-/**
-  * @brief Close recursive lock
-  * @param lock The lock
-  */
-void __retarget_lock_close_recursive(_LOCK_T lock)
-{
-  free(lock);
-}
-
-/**
-  * @brief Acquire lock
-  * @param lock The lock
-  */
-void __retarget_lock_acquire(_LOCK_T lock)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(lock);
-  stm32_lock_acquire(STM32_LOCK_PARAMETER(lock));
-}
-
-/**
-  * @brief Acquire recursive lock
-  * @param lock The lock
-  */
-void __retarget_lock_acquire_recursive(_LOCK_T lock)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(lock);
-  stm32_lock_acquire(STM32_LOCK_PARAMETER(lock));
-}
-
-/**
-  * @brief Try acquire lock
-  * @param lock The lock
-  * @return 0 always
-  */
-int __retarget_lock_try_acquire(_LOCK_T lock)
-{
-  __retarget_lock_acquire(lock);
-  return 0;
-}
-
-/**
-  * @brief Try acquire recursive lock
-  * @param lock The lock
-  * @return 0 always
-  */
-int __retarget_lock_try_acquire_recursive(_LOCK_T lock)
-{
-  __retarget_lock_acquire_recursive(lock);
-  return 0;
-}
-
-/**
-  * @brief Release lock
-  * @param lock The lock
-  */
-void __retarget_lock_release(_LOCK_T lock)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(lock);
-  stm32_lock_release(STM32_LOCK_PARAMETER(lock));
-}
-
-/**
-  * @brief Release recursive lock
-  * @param lock The lock
-  */
-void __retarget_lock_release_recursive(_LOCK_T lock)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(lock);
-  stm32_lock_release(STM32_LOCK_PARAMETER(lock));
-}
-
-#else
-#warning This makes malloc, env, and TZ calls thread-safe, not the entire newlib
-
-/* Includes ------------------------------------------------------------------*/
-#include <reent.h>
-
-/* Private variables ---------------------------------------------------------*/
-/** Mutex used in __malloc_lock and __malloc_unlock */
-static LockingData_t __lock___malloc_recursive_mutex = LOCKING_DATA_INIT;
-
-/** Mutex used in __env_lock and __env_unlock */
-static LockingData_t __lock___env_recursive_mutex = LOCKING_DATA_INIT;
-
-/** Mutex used in __tz_lock and __tz_unlock */
-static LockingData_t __lock___tz_mutex = LOCKING_DATA_INIT;
-
-/* Private functions ---------------------------------------------------------*/
-
-#if __STD_C
-
-/**
-  * @brief Acquire malloc lock
-  * @param reent The reentrance struct
-  */
-void __malloc_lock(struct _reent *reent)
-{
-  STM32_LOCK_UNUSED(reent);
-  stm32_lock_acquire(&__lock___malloc_recursive_mutex);
-}
-
-/**
-  * @brief Release malloc lock
-  * @param reent The reentrance struct
-  */
-void __malloc_unlock(struct _reent *reent)
-{
-  STM32_LOCK_UNUSED(reent);
-  stm32_lock_release(&__lock___malloc_recursive_mutex);
-}
-
-#else
-
-/**
-  * @brief Acquire malloc lock
-  */
-void __malloc_lock()
-{
-  stm32_lock_acquire(&__lock___malloc_recursive_mutex);
-}
-
-/**
-  * @brief Release malloc lock
-  */
-void __malloc_unlock()
-{
-  stm32_lock_release(&__lock___malloc_recursive_mutex);
-}
-#endif /* __STD_C */
-
-/**
-  * @brief Acquire env lock
-  * @param reent The reentrance struct
-  */
-void __env_lock(struct _reent *reent)
-{
-  STM32_LOCK_UNUSED(reent);
-  stm32_lock_acquire(&__lock___env_recursive_mutex);
-}
-
-/**
-  * @brief Release env lock
-  * @param reent The reentrance struct
-  */
-void __env_unlock(struct _reent *reent)
-{
-  STM32_LOCK_UNUSED(reent);
-  stm32_lock_release(&__lock___env_recursive_mutex);
-}
-
-/**
-  * @brief Acquire tz lock
-  */
-void __tz_lock()
-{
-  stm32_lock_acquire(&__lock___tz_mutex);
-}
-
-/**
-  * @brief Release tz lock
-  */
-void __tz_unlock()
-{
-  stm32_lock_release(&__lock___tz_mutex);
-}
-
-#endif /* __NEWLIB__ >= 3 && defined (_RETARGETABLE_LOCKING) */
-
-/**
-  * @}
-  */
-
-
-/**
-  * @defgroup __cxa_guard_ GNU C++ one-time construction API
-  * @see https://itanium-cxx-abi.github.io/cxx-abi/abi.html#once-ctor
-  *
-  * When building for C++, please make sure that <tt>-fno-threadsafe-statics</tt> is not passed to the compiler
-  * @{
-  */
-
-/* Private typedef -----------------------------------------------------------*/
-/** The guard object is created by the C++ compiler and is 32 bit for ARM EABI. */
-typedef struct
-{
-  atomic_uchar initialized; /**< Indicate if object is initialized */
-  uint8_t acquired; /**< Ensure non-recursive lock */
-  uint16_t unused; /**< Padding */
-} __attribute__((packed)) CxaGuardObject_t;
-
-/* Private variables ---------------------------------------------------------*/
-/** Mutex used in __cxa_guard_acquire, __cxa_guard_release and __cxa_guard_abort */
-static LockingData_t __cxa_guard_mutex = LOCKING_DATA_INIT;
-
-/* Private functions prototype ---------------------------------------------------------*/
-int __cxa_guard_acquire(CxaGuardObject_t *guard_object);
-void __cxa_guard_abort(CxaGuardObject_t *guard_object);
-void __cxa_guard_release(CxaGuardObject_t *guard_object);
-/* Private functions ---------------------------------------------------------*/
-
-/**
-  * @brief Acquire __cxa_guard mutex
-  * @param guard_object Guard object
-  * @return 0 if object is initialized, else initialization of object required
-  */
-int __cxa_guard_acquire(CxaGuardObject_t *guard_object)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(guard_object);
-
-  if (atomic_load(&guard_object->initialized) == 0)
-  {
-    /* Object needs initialization, lock threading context */
-    stm32_lock_acquire(&__cxa_guard_mutex);
-    if (atomic_load(&guard_object->initialized) == 0)
-    {
-      /* Object needs initialization */
-      if (guard_object->acquired)
-      {
-        /* Object initialization already in progress */
-        STM32_LOCK_BLOCK();
-      }
-
-      /* Lock acquired */
-      guard_object->acquired = 1;
-      return 1;
-    }
-    else
-    {
-      /* Object initialized in another thread */
-      stm32_lock_release(&__cxa_guard_mutex);
-    }
-  }
-
-  /* Object already initialized */
-  return 0;
-}
-
-/**
-  * @brief Abort __cxa_guard mutex
-  * @param guard_object Guard object
-  */
-void __cxa_guard_abort(CxaGuardObject_t *guard_object)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(guard_object);
-
-  if (guard_object->acquired)
-  {
-    /* Release lock */
-    guard_object->acquired = 0;
-    stm32_lock_release(&__cxa_guard_mutex);
-  }
-  else
-  {
-    /* Trying to release non-acquired lock */
-    STM32_LOCK_BLOCK();
-  }
-}
-
-/**
-  * @brief Release __cxa_guard mutex
-  * @param guard_object Guard object
-  */
-void __cxa_guard_release(CxaGuardObject_t *guard_object)
-{
-  STM32_LOCK_BLOCK_IF_NULL_ARGUMENT(guard_object);
-
-  /* Object initialized */
-  atomic_store(&guard_object->initialized, 1);
-
-  /* Release lock */
-  __cxa_guard_abort(guard_object);
-}
-
-/**
-  * @}
-  */
-
-#endif /* __SINGLE_THREAD__ */

Core/Src/canlog.c

@@ -15,6 +15,7 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "canlog.h"
+#include "main.h"
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
 #include "cmsis_os.h"
@@ -24,12 +25,15 @@
 extern CAN_HandleTypeDef hcan1;
 extern CAN_HandleTypeDef hcan2;
 
+extern osThreadId_t xCAN1LedTask;
+extern osThreadId_t xCAN2LedTask;
+
 /* Private function prototypes -----------------------------------------------*/
 /* USER CODE BEGIN FunctionPrototypes */
-/* BEGIN CAN_Logger_Init */
 /**
-  * @brief  Initialize CAN bus logger.
+  * @brief  Initializes the CAN logger modules, OS threads, queues, and hardware.
-  * @param  argument: hcan1, hcan2
+  * @param  hcan1 Pointer to the CAN1 handle
+  * @param  hcan2 Pointer to the CAN2 handle
   * @retval None
   */
 void CAN_Logger_Init(CAN_HandleTypeDef *hcan1, CAN_HandleTypeDef *hcan2)
@@ -47,73 +51,87 @@ void CAN_Logger_Init(CAN_HandleTypeDef *hcan1, CAN_HandleTypeDef *hcan2)
 
     filter.FilterBank = 0;
     if (HAL_CAN_ConfigFilter(hcan1, &filter) != HAL_OK) Error_Handler();
-    if (HAL_CAN_Start(hcan1) != HAL_OK) Error_Handler();
 
     filter.FilterBank = 14;
     if (HAL_CAN_ConfigFilter(hcan2, &filter) != HAL_OK) Error_Handler();
-    if (HAL_CAN_Start(hcan2) != HAL_OK) Error_Handler();
 }
 /* END CAN_Logger_Init */
 
 /* BEGIN HAL_CAN_RxFifo0MsgPendingCallback */
 /**
   * @brief  ISR for CAN message pending in FIFO0
-  * @param  argument: Can handle hcan (hcan1 or hcan2)
+  * @param  hcan: CAN handle hcan (hcan1 or hcan2)
   * @retval None
   */
 void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *hcan)
 {
-    /* CODE BEGIN */
     CanMessage_t message;
     CAN_RxHeaderTypeDef rxHeader;
     uint8_t data[8];
 
-    if (HAL_CAN_GetRxMessage(hcan, CAN_RX_FIFO0, &rxHeader, data) != HAL_OK) Error_Handler();
+    osMessageQueueId_t queue;
+    osThreadId_t led_task;
 
-    message.id = rxHeader.ExtId;
+    // TODO: manage the case of FIFO overflow
+    if (HAL_CAN_GetRxMessage(hcan, CAN_RX_FIFO0, &rxHeader, data) != HAL_OK) return;
+
+    if (rxHeader.IDE == CAN_ID_EXT) message.id = rxHeader.ExtId;
+    else message.id = rxHeader.StdId;
     message.dlc = rxHeader.DLC;
     message.isExtended = (rxHeader.IDE == CAN_ID_EXT);
+    message.source = (hcan->Instance == CAN1) ? 1 : 2;
     memcpy(message.payload, data, rxHeader.DLC);
 
-    osMessageQueueId_t queue = (hcan->Instance == CAN1) ? xCAN1RxQueue : xCAN2RxQueue;
+    if (hcan->Instance == CAN1)
-    if (osMessageQueuePut(queue, &message, 0U, 0U) != osOK)
     {
-        // TODO: better handling: flash error_led on osTimeout, call Error_Handler() when other errors
+        queue    = xCAN1RxQueue;
-
+        led_task = xCAN1LedTask;
-        // send errors like queue full via UART
+    }
+    else
+    {
+        queue    = xCAN2RxQueue;
+        led_task = xCAN2LedTask;
     }
 
-    osSemaphoreId_t semaphore = (hcan->Instance == CAN1) ? xSemaphoreCAN1 : xSemaphoreCAN2;
+    if (osMessageQueuePut(queue, &message, 0U, 0U) == osOK)
-    osSemaphoreRelease(semaphore);
+    {
-    /* CODE END */
+        osThreadFlagsSet(led_task, 0x01);
+    }
 }
 /* END HAL_CAN_RxFifo0MsgPendingCallback */
 
-/* BEGIN vCANLoggerListen */
+/* BEGIN vCANListener */
 /**
   * @brief  Log incoming CAN bus traffic in FIFO buffer
   * @param  argument: Not used
   * @retval None
   */
-void vCANLoggerListen(void *argument)
+void vCANListener(void *argument)
 {
-  /* CODE BEGIN */
   CAN_HandleTypeDef *hcan = (CAN_HandleTypeDef*)argument;
   osMessageQueueId_t queue = (hcan->Instance == CAN1) ? xCAN1RxQueue : xCAN2RxQueue;
   CanMessage_t message;
 
+  if (HAL_CAN_Start(hcan) != HAL_OK) Error_Handler();
   HAL_CAN_ActivateNotification(hcan, CAN_IT_RX_FIFO0_MSG_PENDING);
 
+  uint32_t irqn = (hcan->Instance == CAN1) ? CAN1_RX0_IRQn : CAN2_RX0_IRQn;
+  HAL_NVIC_SetPriority(irqn, 6, 0);
+  HAL_NVIC_EnableIRQ(irqn);
+
   for (;;)
   {
-    if (osMessageQueueGet(queue, &message, NULL, osWaitForever) == osOK)
+    if (osMessageQueueGet(queue, &message, NULL, 1000) == osOK)
-	{
+    {
-					//
+          // J1939 decoding
-	}
+
+      osMessageQueuePut(xUARTQueue, &message, 0U, 0U);
+    }
+    else DEBUG_PRINT("No CAN yet!\r\n");
+
   }
-	/* CODE END */
 }
-/* END vCANLoggerListen */
+/* END vCANListener */
 
 /* BEGIN vLEDHeartbeat */
 /**
@@ -123,15 +141,15 @@ void vCANLoggerListen(void *argument)
   */
 void vLEDHeartbeat(void *argument)
 {
-    /* CODE BEGIN */
+  LED_Config *led = (LED_Config*)argument;
-    LEDContext *context = (LEDContext*)argument;
 
-    for (;;)
+  for (;;)
-    {
+  {
-      if (osSemaphoreAcquire(context->semaphore, 25U) == osOK) HAL_GPIO_WritePin(context->led->port, context->led->pin, GPIO_PIN_SET);
+    uint32_t notification = osThreadFlagsWait(0x01, osFlagsWaitAny, LED_BLINK_MS);
-      else HAL_GPIO_WritePin(context->led->port, context->led->pin, GPIO_PIN_RESET);
+
-    }
+    if (notification & 0x01) HAL_GPIO_WritePin(led->port, led->pin, GPIO_PIN_SET);
-    /* CODE END */
+    else HAL_GPIO_WritePin(led->port, led->pin, GPIO_PIN_RESET);
+  }
 }
 /* END vLEDHeartbeat */
 /* USER CODE END FunctionPrototypes */

Core/Src/cansend.c

@@ -0,0 +1,155 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : cansend.c
+  * @brief          : Send logged SAE J1939 CAN via serial and save via SDIO.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 Erick Ahmed.
+  *
+  * SPDX-License-Identifier: GPL-3.0-or-later
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "cansend.h"
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+#include "main.h"
+#include "cmsis_os.h"
+#include "canlog.h"
+/* USER CODE END Includes */
+
+extern UART_HandleTypeDef huart1;
+extern osSemaphoreId_t xUARTDMASemaphore;
+extern osMessageQueueId_t xUARTQueue;
+
+/* BEGIN format_can_message */
+/**
+  * @brief  Format CAN message for friendly reading on terminal emulators and other MCUs.
+  * @param  arguments: buffer, source, message
+  * @retval None
+  */
+static int format_can_message(char *buf, uint8_t source, const CanMessage_t *message)
+{
+  const char hex[] = "0123456789ABCDEF";
+
+  buf[0] = 'C';
+  buf[1] = (source == 1) ? '1' : '2';
+  buf[2] = ':';
+
+  buf[3]  = hex[(message->id >> 28) & 0x0F];
+  buf[4]  = hex[(message->id >> 24) & 0x0F];
+  buf[5]  = hex[(message->id >> 20) & 0x0F];
+  buf[6]  = hex[(message->id >> 16) & 0x0F];
+  buf[7]  = hex[(message->id >> 12) & 0x0F];
+  buf[8]  = hex[(message->id >> 8) & 0x0F];
+  buf[9]  = hex[(message->id >> 4) & 0x0F];
+  buf[10] = hex[message->id & 0x0F];
+
+  buf[11] = ' ';
+  buf[12] = hex[(message->dlc >> 4) & 0x0F];
+  buf[13] = hex[message->dlc & 0x0F];
+  buf[14] = ' ';
+
+  int idx = 15;
+  for (int i = 0; i < 8; i++)
+  {
+    if (i < message->dlc)
+    {
+      buf[idx++] = hex[(message->payload[i] >> 4) & 0x0F];
+      buf[idx++] = hex[message->payload[i] & 0x0F];
+    }
+    else
+    {
+      buf[idx++] = ' ';
+      buf[idx++] = ' ';
+    }
+    if (i < 7) buf[idx++] = ' ';
+  }
+
+  buf[idx++] = '\r';
+  buf[idx++] = '\n';
+  buf[idx] = '\0';
+
+  return idx;
+}
+/* END format_can_message */
+
+/* BEGIN HAL_UART_TxCpltCallback */
+/**
+  * @brief  Safely release UART semaphore inside ISR and yield task if possible.
+  * @param  argument: UART handle
+  * @retval None
+  */
+void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
+{
+  if (huart->Instance == USART1)
+  {
+    osSemaphoreRelease(xUARTDMASemaphore);
+  }
+}
+/* END HAL_UART_TxCpltCallback */
+
+/* BEGIN vUARTLoggerListen */
+/**
+  * @brief  Send CAN bus traffic saved in FIFO buffer to USART1
+  * @param  argument: Not used
+  * @retval None
+  */
+void vUARTLogger(void *argument)
+{
+  CanMessage_t message;
+  char tx_buffer[45];
+
+  #ifdef DEBUG_DUMMY_FRAME
+  CanMessage_t dummy_frame = {
+    .id = 0x0CF00400,       // J1939 EEC1 ID
+    .dlc = 8,               // 8 bytes of data
+    .isExtended = 1,        // 29-bit Extended ID
+    .source = 1,            // CAN1
+    .payload = {0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x11, 0x22}
+  };
+  #endif
+
+  for (;;)
+  {
+    DEBUG_PRINT("Waiting for CAN traffic...\r\n");
+
+    #ifdef DEBUG_DUMMY_FRAME
+    uint32_t queue_timeout = 1000U;
+    #else
+    uint32_t queue_timeout = osWaitForever;
+    #endif
+
+    #ifdef DEBUG_DUMMY_FRAME
+    osMessageQueuePut(xUARTQueue, &dummy_frame, 0U, 0U);
+    osDelay(1000);
+    #endif
+
+   	if (osMessageQueueGet(xUARTQueue, &message, NULL, queue_timeout) == osOK)
+	{
+      if (osSemaphoreAcquire(xUARTDMASemaphore, queue_timeout) == osOK)
+      {
+        int len = format_can_message(tx_buffer, message.source, &message);
+
+        if (HAL_UART_Transmit_DMA(&huart1, (uint8_t*)tx_buffer, len) == HAL_OK)
+        {
+          DEBUG_PRINT("CAN frame sent via UART\r\n");
+        }
+        else
+        {
+          osSemaphoreRelease(xUARTDMASemaphore);
+          DEBUG_PRINT("HAL error, CAN frame NOT sent!\r\n");
+        }
+      }
+      else
+      {
+        DEBUG_PRINT("ERROR: Semaphore timeout! UART might be stuck in BUSY state.\r\n");
+      }
+	}
+  }
+}
+/* END vUARTLoggerListen */

Core/Src/main.c

@@ -20,6 +20,7 @@
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
 #include "canlog.h"
+#include "cansend.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -44,19 +45,26 @@ SD_HandleTypeDef hsd;
 DMA_HandleTypeDef hdma_sdio_rx;
 DMA_HandleTypeDef hdma_sdio_tx;
 
+UART_HandleTypeDef huart1;
+DMA_HandleTypeDef hdma_usart1_tx;
+
 /* USER CODE BEGIN PV */
-LED_Config led_can1 = {GPIOB, GPIO_PIN_2};
+LED_Config led_can1 = {GPIOB, GPIO_PIN_5};
-LED_Config led_can2 = {GPIOB, GPIO_PIN_5};
+LED_Config led_can2 = {GPIOB, GPIO_PIN_6};
-LED_Config led_error = {GPIOB, GPIO_PIN_3};
+LED_Config led_error = {GPIOB, GPIO_PIN_7};
 
-LEDContext ledContextCAN1;
+osThreadId_t xCAN1rxTask;
-LEDContext ledContextCAN2;
+osThreadId_t xCAN2rxTask;
-
+osThreadId_t xCAN1LedTask;
-osSemaphoreId_t xSemaphoreCAN1;
+osThreadId_t xCAN2LedTask;
-osSemaphoreId_t xSemaphoreCAN2;
 
 osMessageQueueId_t xCAN1RxQueue;
 osMessageQueueId_t xCAN2RxQueue;
+osMessageQueueId_t xUARTQueue;
+
+osSemaphoreId_t xUARTDMASemaphore;
+osThreadId_t xUartTask;
+
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -66,8 +74,14 @@ static void MX_DMA_Init(void);
 static void MX_CAN1_Init(void);
 static void MX_CAN2_Init(void);
 static void MX_SDIO_SD_Init(void);
+static void MX_USART1_UART_Init(void);
 
 /* USER CODE BEGIN PFP */
+int _write(int file, char *ptr, int len)
+{
+  for (int i = 0; i < len; i++) ITM_SendChar((*ptr++));
+  return len;
+}
 /* USER CODE END PFP */
 
 /* Private user code ---------------------------------------------------------*/
@@ -83,7 +97,15 @@ int main(void)
 {
 
   /* USER CODE BEGIN 1 */
+  if (CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk)
+  {
+    CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
+    ITM->LAR = 0xC5ACCE55;
+    ITM->TER = 1 << 0;
+    ITM->TCR = ITM_TCR_ITMENA_Msk | ITM_TCR_SYNCENA_Msk | ITM_TCR_SWOENA_Msk;
+  }
 
+  DEBUG_PRINT("Booting system\r\n");
   /* USER CODE END 1 */
 
   /* MCU Configuration--------------------------------------------------------*/
@@ -92,6 +114,7 @@ int main(void)
   HAL_Init();
 
   /* USER CODE BEGIN Init */
+  DEBUG_PRINT("Configuring system clock\r\n");
 
   /* USER CODE END Init */
 
@@ -99,7 +122,7 @@ int main(void)
   SystemClock_Config();
 
   /* USER CODE BEGIN SysInit */
-
+  DEBUG_PRINT("Initializing configured peripherals...\r\n");
   /* USER CODE END SysInit */
 
   /* Initialize all configured peripherals */
@@ -108,86 +131,77 @@ int main(void)
   MX_CAN1_Init();
   MX_CAN2_Init();
   MX_SDIO_SD_Init();
-
+  MX_USART1_UART_Init();
   /* USER CODE BEGIN 2 */
+  DEBUG_PRINT("Initializing CAN bus logger\r\n");
   CAN_Logger_Init(&hcan1, &hcan2);
   /* USER CODE END 2 */
 
   /* Init scheduler */
   osKernelInitialize();
 
+  DEBUG_PRINT("Creating RTOS entities\r\n");
+
   /* USER CODE BEGIN RTOS_TASKS */
-  osThreadId_t xCAN1rx;
   const osThreadAttr_t CAN1rxAttributes = {
     .name = "CAN1rx",
     .stack_size = 128 * 4,
     .priority = (osPriority_t) osPriorityRealtime1,
   };
-
-  osThreadId_t xCAN2rx;
   const osThreadAttr_t CAN2rxAttributes = {
     .name = "CAN2rx",
     .stack_size = 128 * 4,
     .priority = (osPriority_t) osPriorityRealtime,
   };
-
+  const osThreadAttr_t UartLoggerAttributes = {
-  osThreadId_t xLEDHeartbeatCAN1;
+    .name = "UART_Logger",
+    .stack_size = 256 * 4,
+    .priority = (osPriority_t) osPriorityHigh,
+  };
   const osThreadAttr_t LEDHeartbeatCAN1Attributes = {
     .name = "LED_HB_CAN1",
     .stack_size = 128 * 4,
-    .priority = (osPriority_t) osPriorityVeryLow1,
+    .priority = (osPriority_t) osPriorityLow1,
   };
-
-  osThreadId_t xLEDHeartbeatCAN2;
   const osThreadAttr_t LEDHeartbeatCAN2Attributes = {
     .name = "LED_HB_CAN2",
     .stack_size = 128 * 4,
-    .priority = (osPriority_t) osPriorityVeryLow,
+    .priority = (osPriority_t) osPriorityLow,
   };
-  /* USER END RTOS_TASKS */
+  /* USER CODE END RTOS_TASKS */
 
   /* USER CODE BEGIN RTOS_MUTEX */
-  /* add mutexes, ... */
   /* USER CODE END RTOS_MUTEX */
 
   /* USER CODE BEGIN RTOS_SEMAPHORES */
-  xSemaphoreCAN1 = osSemaphoreNew(32, 0, NULL);
+  xUARTDMASemaphore = osSemaphoreNew(1, 1, NULL);
-  xSemaphoreCAN2 = osSemaphoreNew(32, 0, NULL);
+  if (xUARTDMASemaphore == NULL) Error_Handler();
-
-  if (xSemaphoreCAN1 == NULL || xSemaphoreCAN2 == NULL) Error_Handler();
-
-  ledContextCAN1.led = &led_can1;
-  ledContextCAN1.semaphore = xSemaphoreCAN1;
-  ledContextCAN2.led = &led_can2;
-  ledContextCAN2.semaphore = xSemaphoreCAN2;
   /* USER CODE END RTOS_SEMAPHORES */
 
   /* USER CODE BEGIN RTOS_TIMERS */
-  /* add timers, ... */
   /* USER CODE END RTOS_TIMERS */
 
   /* USER CODE BEGIN RTOS_QUEUES */
-  xCAN1RxQueue = osMessageQueueNew(32, sizeof(CanMessage_t), NULL);
+  xCAN1RxQueue = osMessageQueueNew(64, sizeof(CanMessage_t), NULL);
-  xCAN2RxQueue = osMessageQueueNew(32, sizeof(CanMessage_t), NULL);
+  xCAN2RxQueue = osMessageQueueNew(64, sizeof(CanMessage_t), NULL);
+  xUARTQueue = osMessageQueueNew(128, sizeof(CanMessage_t), NULL);
 
-  if (xCAN1RxQueue == NULL || xCAN2RxQueue == NULL) Error_Handler();
+  if (xCAN1RxQueue == NULL || xCAN2RxQueue == NULL || xUARTQueue == NULL) Error_Handler();
   /* USER CODE END RTOS_QUEUES */
 
   /* USER CODE BEGIN RTOS_THREADS */
-  xCAN1rx = osThreadNew(vCANLoggerListen, &hcan1, &CAN1rxAttributes);
+  xCAN1rxTask = osThreadNew(vCANListener, &hcan1, &CAN1rxAttributes);
-  xCAN2rx = osThreadNew(vCANLoggerListen, &hcan2, &CAN2rxAttributes);
+  xCAN2rxTask = osThreadNew(vCANListener, &hcan2, &CAN2rxAttributes);
-  xLEDHeartbeatCAN1 = osThreadNew(vLEDHeartbeat, &ledContextCAN1, &LEDHeartbeatCAN1Attributes);
+  xUartTask = osThreadNew(vUARTLogger, NULL, &UartLoggerAttributes);
-  xLEDHeartbeatCAN2 = osThreadNew(vLEDHeartbeat, &ledContextCAN2, &LEDHeartbeatCAN2Attributes);
+  xCAN1LedTask = osThreadNew(vLEDHeartbeat, &led_can1, &LEDHeartbeatCAN1Attributes);
+  xCAN2LedTask = osThreadNew(vLEDHeartbeat, &led_can2, &LEDHeartbeatCAN2Attributes);
   /* USER CODE END RTOS_THREADS */
 
   /* USER CODE BEGIN RTOS_EVENTS */
-  /* add events, ... */
   /* USER CODE END RTOS_EVENTS */
 
-  /* USER CODE BEGIN 3 */
-  /* USER CODE END 3 */
-
   /* Start scheduler */
+  DEBUG_PRINT("Starting RTOS init scheduler\r\n");
   osKernelStart();
 
   /* We should never get here as control is now taken by the scheduler */
@@ -198,9 +212,10 @@ int main(void)
   {
     /* USER CODE END WHILE */
 
-    /* USER CODE BEGIN 4 */
+    /* USER CODE BEGIN 3 */
+    DEBUG_PRINT("ERROR: RTOS scheduler crashed!\r\n");
+    /* USER CODE END 3 */
   }
-  /* USER CODE END 4 */
 }
 
 /**
@@ -265,7 +280,7 @@ static void MX_CAN1_Init(void)
 
   /* USER CODE END CAN1_Init 1 */
   hcan1.Instance = CAN1;
-  hcan1.Init.Prescaler = 4;
+  hcan1.Init.Prescaler = 8;
   hcan1.Init.Mode = CAN_MODE_SILENT;
   hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;
   hcan1.Init.TimeSeg1 = CAN_BS1_16TQ;
@@ -281,7 +296,7 @@ static void MX_CAN1_Init(void)
     Error_Handler();
   }
   /* USER CODE BEGIN CAN1_Init 2 */
-
+  DEBUG_PRINT("CAN1 initialized!\r\n");
   /* USER CODE END CAN1_Init 2 */
 
 }
@@ -302,7 +317,7 @@ static void MX_CAN2_Init(void)
 
   /* USER CODE END CAN2_Init 1 */
   hcan2.Instance = CAN2;
-  hcan2.Init.Prescaler = 8;
+  hcan2.Init.Prescaler = 16;
   hcan2.Init.Mode = CAN_MODE_SILENT;
   hcan2.Init.SyncJumpWidth = CAN_SJW_1TQ;
   hcan2.Init.TimeSeg1 = CAN_BS1_16TQ;
@@ -318,7 +333,7 @@ static void MX_CAN2_Init(void)
     Error_Handler();
   }
   /* USER CODE BEGIN CAN2_Init 2 */
-
+  DEBUG_PRINT("CAN2 initialized!\r\n");
   /* USER CODE END CAN2_Init 2 */
 
 }
@@ -345,20 +360,53 @@ static void MX_SDIO_SD_Init(void)
   hsd.Init.BusWide = SDIO_BUS_WIDE_1B;
   hsd.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
   hsd.Init.ClockDiv = 0;
-  if (HAL_SD_Init(&hsd) != HAL_OK)
+  //if (HAL_SD_Init(&hsd) != HAL_OK)
-  {
+  //{
-    Error_Handler();
+  //  Error_Handler();
-  }
+  //}
-  if (HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B) != HAL_OK)
+  //if (HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B) != HAL_OK)
-  {
+  //{
-    Error_Handler();
+  //  Error_Handler();
-  }
+  //}
   /* USER CODE BEGIN SDIO_Init 2 */
-
+  //DEBUG_PRINT("SDIO initialized!\r\n");
   /* USER CODE END SDIO_Init 2 */
 
 }
 
+/**
+  * @brief USART1 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_USART1_UART_Init(void)
+{
+
+  /* USER CODE BEGIN USART1_Init 0 */
+
+  /* USER CODE END USART1_Init 0 */
+
+  /* USER CODE BEGIN USART1_Init 1 */
+
+  /* USER CODE END USART1_Init 1 */
+  huart1.Instance = USART1;
+  huart1.Init.BaudRate = 115200;
+  huart1.Init.WordLength = UART_WORDLENGTH_8B;
+  huart1.Init.StopBits = UART_STOPBITS_1;
+  huart1.Init.Parity = UART_PARITY_NONE;
+  huart1.Init.Mode = UART_MODE_TX_RX;
+  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
+  if (HAL_UART_Init(&huart1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN USART1_Init 2 */
+  DEBUG_PRINT("USART1 initialized!\r\n");
+  /* USER CODE END USART1_Init 2 */
+
+}
+
 /**
   * Enable DMA controller clock
   */
@@ -375,7 +423,13 @@ static void MX_DMA_Init(void)
   /* DMA2_Stream6_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(DMA2_Stream6_IRQn, 5, 0);
   HAL_NVIC_EnableIRQ(DMA2_Stream6_IRQn);
+  /* DMA2_Stream7_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(DMA2_Stream7_IRQn, 5, 0);
+  HAL_NVIC_EnableIRQ(DMA2_Stream7_IRQn);
 
+  /* USER CODE BEGIN MX_DMA_Init 1 */
+  DEBUG_PRINT("DMA initialized!\r\n");
+  /* USER CODE END MX_DMA_Init 1 */
 }
 
 /**
@@ -398,7 +452,7 @@ static void MX_GPIO_Init(void)
   __HAL_RCC_GPIOD_CLK_ENABLE();
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5, GPIO_PIN_RESET);
+  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_RESET);
 
   /*Configure GPIO pins : PC13 PC14 PC15 PC0
                            PC1 PC2 PC3 PC4
@@ -418,41 +472,38 @@ static void MX_GPIO_Init(void)
 
   /*Configure GPIO pins : PA0 PA1 PA2 PA3
                            PA4 PA5 PA6 PA7
-                           PA8 PA9 PA10 PA11
+                           PA8 PA11 PA12 PA15 */
-                           PA12 PA13 PA14 PA15 */
   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
                           |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7
-                          |GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11
+                          |GPIO_PIN_8|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_15;
-                          |GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PB0 PB1 PB2 PB10
-                           PB11 PB14 PB15 PB6
+                           PB11 PB14 PB15 PB3
-                           PB7 */
+                           PB4 */
   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_10
-                          |GPIO_PIN_11|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_6
+                          |GPIO_PIN_11|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_3
-                          |GPIO_PIN_7;
+                          |GPIO_PIN_4;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PB3 PB4 PB5 */
+  /*Configure GPIO pins : PB5 PB6 PB7 */
-  GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5;
+  GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
   /* USER CODE BEGIN MX_GPIO_Init_2 */
-
+  DEBUG_PRINT("GPIO initialized!\r\n");
   /* USER CODE END MX_GPIO_Init_2 */
 }
 
-/* USER CODE BEGIN 5 */
+/* USER CODE BEGIN 4 */
-
+/* USER CODE END 4 */
-/* USER CODE END 5 */
 
 /**
   * @brief  Period elapsed callback in non blocking mode
@@ -482,6 +533,8 @@ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
   */
 void Error_Handler(void)
 {
+  DEBUG_PRINT("ERROR: entering error handler\r\n");
+
   /* USER CODE BEGIN Error_Handler_Debug */
   /* User can add his own implementation to report the HAL error return state */
   __disable_irq();

Core/Src/stm32f4xx_hal_msp.c

@@ -26,6 +26,8 @@ extern DMA_HandleTypeDef hdma_sdio_rx;
 
 extern DMA_HandleTypeDef hdma_sdio_tx;
 
+extern DMA_HandleTypeDef hdma_usart1_tx;
+
 /* Private typedef -----------------------------------------------------------*/
 /* USER CODE BEGIN TD */
 
@@ -342,6 +344,99 @@ void HAL_SD_MspDeInit(SD_HandleTypeDef* hsd)
 
 }
 
+/**
+  * @brief UART MSP Initialization
+  * This function configures the hardware resources used in this example
+  * @param huart: UART handle pointer
+  * @retval None
+  */
+void HAL_UART_MspInit(UART_HandleTypeDef* huart)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(huart->Instance==USART1)
+  {
+    /* USER CODE BEGIN USART1_MspInit 0 */
+
+    /* USER CODE END USART1_MspInit 0 */
+    /* Peripheral clock enable */
+    __HAL_RCC_USART1_CLK_ENABLE();
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**USART1 GPIO Configuration
+    PA9     ------> USART1_TX
+    PA10     ------> USART1_RX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    /* USART1 DMA Init */
+    /* USART1_TX Init */
+    hdma_usart1_tx.Instance = DMA2_Stream7;
+    hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
+    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
+    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx);
+
+    /* USART1 interrupt Init */
+    HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
+    HAL_NVIC_EnableIRQ(USART1_IRQn);
+    /* USER CODE BEGIN USART1_MspInit 1 */
+
+    /* USER CODE END USART1_MspInit 1 */
+
+  }
+
+}
+
+/**
+  * @brief UART MSP De-Initialization
+  * This function freeze the hardware resources used in this example
+  * @param huart: UART handle pointer
+  * @retval None
+  */
+void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
+{
+  if(huart->Instance==USART1)
+  {
+    /* USER CODE BEGIN USART1_MspDeInit 0 */
+
+    /* USER CODE END USART1_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_USART1_CLK_DISABLE();
+
+    /**USART1 GPIO Configuration
+    PA9     ------> USART1_TX
+    PA10     ------> USART1_RX
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
+
+    /* USART1 DMA DeInit */
+    HAL_DMA_DeInit(huart->hdmatx);
+
+    /* USART1 interrupt DeInit */
+    HAL_NVIC_DisableIRQ(USART1_IRQn);
+    /* USER CODE BEGIN USART1_MspDeInit 1 */
+
+    /* USER CODE END USART1_MspDeInit 1 */
+  }
+
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

Core/Src/stm32f4xx_it.c

@@ -58,6 +58,8 @@
 extern DMA_HandleTypeDef hdma_sdio_rx;
 extern DMA_HandleTypeDef hdma_sdio_tx;
 extern SD_HandleTypeDef hsd;
+extern DMA_HandleTypeDef hdma_usart1_tx;
+extern UART_HandleTypeDef huart1;
 extern TIM_HandleTypeDef htim6;
 
 /* USER CODE BEGIN EV */
@@ -162,6 +164,20 @@ void DebugMon_Handler(void)
 /* please refer to the startup file (startup_stm32f4xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles USART1 global interrupt.
+  */
+void USART1_IRQHandler(void)
+{
+  /* USER CODE BEGIN USART1_IRQn 0 */
+
+  /* USER CODE END USART1_IRQn 0 */
+  HAL_UART_IRQHandler(&huart1);
+  /* USER CODE BEGIN USART1_IRQn 1 */
+
+  /* USER CODE END USART1_IRQn 1 */
+}
+
 /**
   * @brief This function handles SDIO global interrupt.
   */
@@ -218,6 +234,20 @@ void DMA2_Stream6_IRQHandler(void)
   /* USER CODE END DMA2_Stream6_IRQn 1 */
 }
 
+/**
+  * @brief This function handles DMA2 stream7 global interrupt.
+  */
+void DMA2_Stream7_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA2_Stream7_IRQn 0 */
+
+  /* USER CODE END DMA2_Stream7_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart1_tx);
+  /* USER CODE BEGIN DMA2_Stream7_IRQn 1 */
+
+  /* USER CODE END DMA2_Stream7_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_uart.h

@@ -0,0 +1,909 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_uart.h
+  * @author  MCD Application Team
+  * @brief   Header file of UART HAL module.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2016 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.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_HAL_UART_H
+#define __STM32F4xx_HAL_UART_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal_def.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+  * @{
+  */
+
+/** @addtogroup UART
+  * @{
+  */
+
+/* Exported types ------------------------------------------------------------*/
+/** @defgroup UART_Exported_Types UART Exported Types
+  * @{
+  */
+
+/**
+  * @brief UART Init Structure definition
+  */
+typedef struct
+{
+  uint32_t BaudRate;                  /*!< This member configures the UART communication baud rate.
+                                           The baud rate is computed using the following formula:
+                                           - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate)))
+                                           - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5
+                                           Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */
+
+  uint32_t WordLength;                /*!< Specifies the number of data bits transmitted or received in a frame.
+                                           This parameter can be a value of @ref UART_Word_Length */
+
+  uint32_t StopBits;                  /*!< Specifies the number of stop bits transmitted.
+                                           This parameter can be a value of @ref UART_Stop_Bits */
+
+  uint32_t Parity;                    /*!< Specifies the parity mode.
+                                           This parameter can be a value of @ref UART_Parity
+                                           @note When parity is enabled, the computed parity is inserted
+                                                 at the MSB position of the transmitted data (9th bit when
+                                                 the word length is set to 9 data bits; 8th bit when the
+                                                 word length is set to 8 data bits). */
+
+  uint32_t Mode;                      /*!< Specifies whether the Receive or Transmit mode is enabled or disabled.
+                                           This parameter can be a value of @ref UART_Mode */
+
+  uint32_t HwFlowCtl;                 /*!< Specifies whether the hardware flow control mode is enabled or disabled.
+                                           This parameter can be a value of @ref UART_Hardware_Flow_Control */
+
+  uint32_t OverSampling;              /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8).
+                                           This parameter can be a value of @ref UART_Over_Sampling */
+} UART_InitTypeDef;
+
+/**
+  * @brief HAL UART State structures definition
+  * @note  HAL UART State value is a combination of 2 different substates: gState and RxState.
+  *        - gState contains UART state information related to global Handle management
+  *          and also information related to Tx operations.
+  *          gState value coding follow below described bitmap :
+  *          b7-b6  Error information
+  *             00 : No Error
+  *             01 : (Not Used)
+  *             10 : Timeout
+  *             11 : Error
+  *          b5     Peripheral initialization status
+  *             0  : Reset (Peripheral not initialized)
+  *             1  : Init done (Peripheral initialized. HAL UART Init function already called)
+  *          b4-b3  (not used)
+  *             xx : Should be set to 00
+  *          b2     Intrinsic process state
+  *             0  : Ready
+  *             1  : Busy (Peripheral busy with some configuration or internal operations)
+  *          b1     (not used)
+  *             x  : Should be set to 0
+  *          b0     Tx state
+  *             0  : Ready (no Tx operation ongoing)
+  *             1  : Busy (Tx operation ongoing)
+  *        - RxState contains information related to Rx operations.
+  *          RxState value coding follow below described bitmap :
+  *          b7-b6  (not used)
+  *             xx : Should be set to 00
+  *          b5     Peripheral initialization status
+  *             0  : Reset (Peripheral not initialized)
+  *             1  : Init done (Peripheral initialized)
+  *          b4-b2  (not used)
+  *            xxx : Should be set to 000
+  *          b1     Rx state
+  *             0  : Ready (no Rx operation ongoing)
+  *             1  : Busy (Rx operation ongoing)
+  *          b0     (not used)
+  *             x  : Should be set to 0.
+  */
+typedef enum
+{
+  HAL_UART_STATE_RESET             = 0x00U,    /*!< Peripheral is not yet Initialized
+                                                   Value is allowed for gState and RxState */
+  HAL_UART_STATE_READY             = 0x20U,    /*!< Peripheral Initialized and ready for use
+                                                   Value is allowed for gState and RxState */
+  HAL_UART_STATE_BUSY              = 0x24U,    /*!< an internal process is ongoing
+                                                   Value is allowed for gState only */
+  HAL_UART_STATE_BUSY_TX           = 0x21U,    /*!< Data Transmission process is ongoing
+                                                   Value is allowed for gState only */
+  HAL_UART_STATE_BUSY_RX           = 0x22U,    /*!< Data Reception process is ongoing
+                                                   Value is allowed for RxState only */
+  HAL_UART_STATE_BUSY_TX_RX        = 0x23U,    /*!< Data Transmission and Reception process is ongoing
+                                                   Not to be used for neither gState nor RxState.
+                                                   Value is result of combination (Or) between gState and RxState values */
+  HAL_UART_STATE_TIMEOUT           = 0xA0U,    /*!< Timeout state
+                                                   Value is allowed for gState only */
+  HAL_UART_STATE_ERROR             = 0xE0U     /*!< Error
+                                                   Value is allowed for gState only */
+} HAL_UART_StateTypeDef;
+
+/**
+  * @brief HAL UART Reception type definition
+  * @note  HAL UART Reception type value aims to identify which type of Reception is ongoing.
+  *        This parameter can be a value of @ref UART_Reception_Type_Values :
+  *           HAL_UART_RECEPTION_STANDARD         = 0x00U,
+  *           HAL_UART_RECEPTION_TOIDLE           = 0x01U,
+  */
+typedef uint32_t HAL_UART_RxTypeTypeDef;
+
+/**
+  * @brief HAL UART Rx Event type definition
+  * @note  HAL UART Rx Event type value aims to identify which type of Event has occurred
+  *        leading to call of the RxEvent callback.
+  *        This parameter can be a value of @ref UART_RxEvent_Type_Values :
+  *           HAL_UART_RXEVENT_TC                 = 0x00U,
+  *           HAL_UART_RXEVENT_HT                 = 0x01U,
+  *           HAL_UART_RXEVENT_IDLE               = 0x02U,
+  */
+typedef uint32_t HAL_UART_RxEventTypeTypeDef;
+
+/**
+  * @brief  UART handle Structure definition
+  */
+typedef struct __UART_HandleTypeDef
+{
+  USART_TypeDef                 *Instance;        /*!< UART registers base address        */
+
+  UART_InitTypeDef              Init;             /*!< UART communication parameters      */
+
+  const uint8_t                 *pTxBuffPtr;      /*!< Pointer to UART Tx transfer Buffer */
+
+  uint16_t                      TxXferSize;       /*!< UART Tx Transfer size              */
+
+  __IO uint16_t                 TxXferCount;      /*!< UART Tx Transfer Counter           */
+
+  uint8_t                       *pRxBuffPtr;      /*!< Pointer to UART Rx transfer Buffer */
+
+  uint16_t                      RxXferSize;       /*!< UART Rx Transfer size              */
+
+  __IO uint16_t                 RxXferCount;      /*!< UART Rx Transfer Counter           */
+
+  __IO HAL_UART_RxTypeTypeDef ReceptionType;      /*!< Type of ongoing reception          */
+
+  __IO HAL_UART_RxEventTypeTypeDef RxEventType;   /*!< Type of Rx Event                   */
+
+  DMA_HandleTypeDef             *hdmatx;          /*!< UART Tx DMA Handle parameters      */
+
+  DMA_HandleTypeDef             *hdmarx;          /*!< UART Rx DMA Handle parameters      */
+
+  HAL_LockTypeDef               Lock;             /*!< Locking object                     */
+
+  __IO HAL_UART_StateTypeDef    gState;           /*!< UART state information related to global Handle management
+                                                       and also related to Tx operations.
+                                                       This parameter can be a value of @ref HAL_UART_StateTypeDef */
+
+  __IO HAL_UART_StateTypeDef    RxState;          /*!< UART state information related to Rx operations.
+                                                       This parameter can be a value of @ref HAL_UART_StateTypeDef */
+
+  __IO uint32_t                 ErrorCode;        /*!< UART Error code                    */
+
+#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
+  void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart);        /*!< UART Tx Half Complete Callback        */
+  void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart);            /*!< UART Tx Complete Callback             */
+  void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart);        /*!< UART Rx Half Complete Callback        */
+  void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart);            /*!< UART Rx Complete Callback             */
+  void (* ErrorCallback)(struct __UART_HandleTypeDef *huart);             /*!< UART Error Callback                   */
+  void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart);         /*!< UART Abort Complete Callback          */
+  void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */
+  void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart);  /*!< UART Abort Receive Complete Callback  */
+  void (* WakeupCallback)(struct __UART_HandleTypeDef *huart);            /*!< UART Wakeup Callback                  */
+  void (* RxEventCallback)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< UART Reception Event Callback     */
+
+  void (* MspInitCallback)(struct __UART_HandleTypeDef *huart);           /*!< UART Msp Init callback                */
+  void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart);         /*!< UART Msp DeInit callback              */
+#endif  /* USE_HAL_UART_REGISTER_CALLBACKS */
+
+} UART_HandleTypeDef;
+
+#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
+/**
+  * @brief  HAL UART Callback ID enumeration definition
+  */
+typedef enum
+{
+  HAL_UART_TX_HALFCOMPLETE_CB_ID         = 0x00U,    /*!< UART Tx Half Complete Callback ID        */
+  HAL_UART_TX_COMPLETE_CB_ID             = 0x01U,    /*!< UART Tx Complete Callback ID             */
+  HAL_UART_RX_HALFCOMPLETE_CB_ID         = 0x02U,    /*!< UART Rx Half Complete Callback ID        */
+  HAL_UART_RX_COMPLETE_CB_ID             = 0x03U,    /*!< UART Rx Complete Callback ID             */
+  HAL_UART_ERROR_CB_ID                   = 0x04U,    /*!< UART Error Callback ID                   */
+  HAL_UART_ABORT_COMPLETE_CB_ID          = 0x05U,    /*!< UART Abort Complete Callback ID          */
+  HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U,    /*!< UART Abort Transmit Complete Callback ID */
+  HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID  = 0x07U,    /*!< UART Abort Receive Complete Callback ID  */
+  HAL_UART_WAKEUP_CB_ID                  = 0x08U,    /*!< UART Wakeup Callback ID                  */
+
+  HAL_UART_MSPINIT_CB_ID                 = 0x0BU,    /*!< UART MspInit callback ID                 */
+  HAL_UART_MSPDEINIT_CB_ID               = 0x0CU     /*!< UART MspDeInit callback ID               */
+
+} HAL_UART_CallbackIDTypeDef;
+
+/**
+  * @brief  HAL UART Callback pointer definition
+  */
+typedef  void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart);  /*!< pointer to an UART callback function */
+typedef  void (*pUART_RxEventCallbackTypeDef)(struct __UART_HandleTypeDef *huart, uint16_t Pos);   /*!< pointer to a UART Rx Event specific callback function */
+
+#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
+
+/**
+  * @}
+  */
+
+/* Exported constants --------------------------------------------------------*/
+/** @defgroup UART_Exported_Constants UART Exported Constants
+  * @{
+  */
+
+/** @defgroup UART_Error_Code UART Error Code
+  * @{
+  */
+#define HAL_UART_ERROR_NONE              0x00000000U   /*!< No error            */
+#define HAL_UART_ERROR_PE                0x00000001U   /*!< Parity error        */
+#define HAL_UART_ERROR_NE                0x00000002U   /*!< Noise error         */
+#define HAL_UART_ERROR_FE                0x00000004U   /*!< Frame error         */
+#define HAL_UART_ERROR_ORE               0x00000008U   /*!< Overrun error       */
+#define HAL_UART_ERROR_DMA               0x00000010U   /*!< DMA transfer error  */
+#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
+#define  HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U   /*!< Invalid Callback error  */
+#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
+/**
+  * @}
+  */
+
+/** @defgroup UART_Word_Length UART Word Length
+  * @{
+  */
+#define UART_WORDLENGTH_8B                  0x00000000U
+#define UART_WORDLENGTH_9B                  ((uint32_t)USART_CR1_M)
+/**
+  * @}
+  */
+
+/** @defgroup UART_Stop_Bits UART Number of Stop Bits
+  * @{
+  */
+#define UART_STOPBITS_1                     0x00000000U
+#define UART_STOPBITS_2                     ((uint32_t)USART_CR2_STOP_1)
+/**
+  * @}
+  */
+
+/** @defgroup UART_Parity UART Parity
+  * @{
+  */
+#define UART_PARITY_NONE                    0x00000000U
+#define UART_PARITY_EVEN                    ((uint32_t)USART_CR1_PCE)
+#define UART_PARITY_ODD                     ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))
+/**
+  * @}
+  */
+
+/** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control
+  * @{
+  */
+#define UART_HWCONTROL_NONE                  0x00000000U
+#define UART_HWCONTROL_RTS                   ((uint32_t)USART_CR3_RTSE)
+#define UART_HWCONTROL_CTS                   ((uint32_t)USART_CR3_CTSE)
+#define UART_HWCONTROL_RTS_CTS               ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE))
+/**
+  * @}
+  */
+
+/** @defgroup UART_Mode UART Transfer Mode
+  * @{
+  */
+#define UART_MODE_RX                        ((uint32_t)USART_CR1_RE)
+#define UART_MODE_TX                        ((uint32_t)USART_CR1_TE)
+#define UART_MODE_TX_RX                     ((uint32_t)(USART_CR1_TE | USART_CR1_RE))
+/**
+  * @}
+  */
+
+/** @defgroup UART_State UART State
+  * @{
+  */
+#define UART_STATE_DISABLE                  0x00000000U
+#define UART_STATE_ENABLE                   ((uint32_t)USART_CR1_UE)
+/**
+  * @}
+  */
+
+/** @defgroup UART_Over_Sampling UART Over Sampling
+  * @{
+  */
+#define UART_OVERSAMPLING_16                    0x00000000U
+#define UART_OVERSAMPLING_8                     ((uint32_t)USART_CR1_OVER8)
+/**
+  * @}
+  */
+
+/** @defgroup UART_LIN_Break_Detection_Length  UART LIN Break Detection Length
+  * @{
+  */
+#define UART_LINBREAKDETECTLENGTH_10B      0x00000000U
+#define UART_LINBREAKDETECTLENGTH_11B      ((uint32_t)USART_CR2_LBDL)
+/**
+  * @}
+  */
+
+/** @defgroup UART_WakeUp_functions  UART Wakeup Functions
+  * @{
+  */
+#define UART_WAKEUPMETHOD_IDLELINE                0x00000000U
+#define UART_WAKEUPMETHOD_ADDRESSMARK             ((uint32_t)USART_CR1_WAKE)
+/**
+  * @}
+  */
+
+/** @defgroup UART_Flags   UART FLags
+  *        Elements values convention: 0xXXXX
+  *           - 0xXXXX  : Flag mask in the SR register
+  * @{
+  */
+#define UART_FLAG_CTS                       ((uint32_t)USART_SR_CTS)
+#define UART_FLAG_LBD                       ((uint32_t)USART_SR_LBD)
+#define UART_FLAG_TXE                       ((uint32_t)USART_SR_TXE)
+#define UART_FLAG_TC                        ((uint32_t)USART_SR_TC)
+#define UART_FLAG_RXNE                      ((uint32_t)USART_SR_RXNE)
+#define UART_FLAG_IDLE                      ((uint32_t)USART_SR_IDLE)
+#define UART_FLAG_ORE                       ((uint32_t)USART_SR_ORE)
+#define UART_FLAG_NE                        ((uint32_t)USART_SR_NE)
+#define UART_FLAG_FE                        ((uint32_t)USART_SR_FE)
+#define UART_FLAG_PE                        ((uint32_t)USART_SR_PE)
+/**
+  * @}
+  */
+
+/** @defgroup UART_Interrupt_definition  UART Interrupt Definitions
+  *        Elements values convention: 0xY000XXXX
+  *           - XXXX  : Interrupt mask (16 bits) in the Y register
+  *           - Y  : Interrupt source register (2bits)
+  *                   - 0001: CR1 register
+  *                   - 0010: CR2 register
+  *                   - 0011: CR3 register
+  * @{
+  */
+
+#define UART_IT_PE                       ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE))
+#define UART_IT_TXE                      ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE))
+#define UART_IT_TC                       ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE))
+#define UART_IT_RXNE                     ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE))
+#define UART_IT_IDLE                     ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE))
+
+#define UART_IT_LBD                      ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE))
+
+#define UART_IT_CTS                      ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE))
+#define UART_IT_ERR                      ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE))
+/**
+  * @}
+  */
+
+/** @defgroup UART_Reception_Type_Values  UART Reception type values
+  * @{
+  */
+#define HAL_UART_RECEPTION_STANDARD          (0x00000000U)             /*!< Standard reception                       */
+#define HAL_UART_RECEPTION_TOIDLE            (0x00000001U)             /*!< Reception till completion or IDLE event  */
+/**
+  * @}
+  */
+
+/** @defgroup UART_RxEvent_Type_Values  UART RxEvent type values
+  * @{
+  */
+#define HAL_UART_RXEVENT_TC                  (0x00000000U)             /*!< RxEvent linked to Transfer Complete event */
+#define HAL_UART_RXEVENT_HT                  (0x00000001U)             /*!< RxEvent linked to Half Transfer event     */
+#define HAL_UART_RXEVENT_IDLE                (0x00000002U)
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/* Exported macro ------------------------------------------------------------*/
+/** @defgroup UART_Exported_Macros UART Exported Macros
+  * @{
+  */
+
+/** @brief Reset UART handle gstate & RxState
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @retval None
+  */
+#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
+#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__)  do{                                                   \
+                                                       (__HANDLE__)->gState = HAL_UART_STATE_RESET;      \
+                                                       (__HANDLE__)->RxState = HAL_UART_STATE_RESET;     \
+                                                       (__HANDLE__)->MspInitCallback = NULL;             \
+                                                       (__HANDLE__)->MspDeInitCallback = NULL;           \
+                                                     } while(0U)
+#else
+#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__)  do{                                                   \
+                                                       (__HANDLE__)->gState = HAL_UART_STATE_RESET;      \
+                                                       (__HANDLE__)->RxState = HAL_UART_STATE_RESET;     \
+                                                     } while(0U)
+#endif /*USE_HAL_UART_REGISTER_CALLBACKS */
+
+/** @brief  Flushes the UART DR register
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  */
+#define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)
+
+/** @brief  Checks whether the specified UART flag is set or not.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @param  __FLAG__ specifies the flag to check.
+  *        This parameter can be one of the following values:
+  *            @arg UART_FLAG_CTS:  CTS Change flag (not available for UART4 and UART5)
+  *            @arg UART_FLAG_LBD:  LIN Break detection flag
+  *            @arg UART_FLAG_TXE:  Transmit data register empty flag
+  *            @arg UART_FLAG_TC:   Transmission Complete flag
+  *            @arg UART_FLAG_RXNE: Receive data register not empty flag
+  *            @arg UART_FLAG_IDLE: Idle Line detection flag
+  *            @arg UART_FLAG_ORE:  Overrun Error flag
+  *            @arg UART_FLAG_NE:   Noise Error flag
+  *            @arg UART_FLAG_FE:   Framing Error flag
+  *            @arg UART_FLAG_PE:   Parity Error flag
+  * @retval The new state of __FLAG__ (TRUE or FALSE).
+  */
+#define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
+
+/** @brief  Clears the specified UART pending flag.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @param  __FLAG__ specifies the flag to check.
+  *          This parameter can be any combination of the following values:
+  *            @arg UART_FLAG_CTS:  CTS Change flag (not available for UART4 and UART5).
+  *            @arg UART_FLAG_LBD:  LIN Break detection flag.
+  *            @arg UART_FLAG_TC:   Transmission Complete flag.
+  *            @arg UART_FLAG_RXNE: Receive data register not empty flag.
+  *
+  * @note   PE (Parity error), FE (Framing error), NE (Noise error), ORE (Overrun
+  *          error) and IDLE (Idle line detected) flags are cleared by software
+  *          sequence: a read operation to USART_SR register followed by a read
+  *          operation to USART_DR register.
+  * @note   RXNE flag can be also cleared by a read to the USART_DR register.
+  * @note   TC flag can be also cleared by software sequence: a read operation to
+  *          USART_SR register followed by a write operation to USART_DR register.
+  * @note   TXE flag is cleared only by a write to the USART_DR register.
+  *
+  * @retval None
+  */
+#define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
+
+/** @brief  Clears the UART PE pending flag.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @retval None
+  */
+#define __HAL_UART_CLEAR_PEFLAG(__HANDLE__)     \
+  do{                                           \
+    __IO uint32_t tmpreg = 0x00U;               \
+    tmpreg = (__HANDLE__)->Instance->SR;        \
+    tmpreg = (__HANDLE__)->Instance->DR;        \
+    UNUSED(tmpreg);                             \
+  } while(0U)
+
+/** @brief  Clears the UART FE pending flag.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @retval None
+  */
+#define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
+
+/** @brief  Clears the UART NE pending flag.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @retval None
+  */
+#define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
+
+/** @brief  Clears the UART ORE pending flag.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @retval None
+  */
+#define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
+
+/** @brief  Clears the UART IDLE pending flag.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @retval None
+  */
+#define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
+
+/** @brief  Enable the specified UART interrupt.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @param  __INTERRUPT__ specifies the UART interrupt source to enable.
+  *          This parameter can be one of the following values:
+  *            @arg UART_IT_CTS:  CTS change interrupt
+  *            @arg UART_IT_LBD:  LIN Break detection interrupt
+  *            @arg UART_IT_TXE:  Transmit Data Register empty interrupt
+  *            @arg UART_IT_TC:   Transmission complete interrupt
+  *            @arg UART_IT_RXNE: Receive Data register not empty interrupt
+  *            @arg UART_IT_IDLE: Idle line detection interrupt
+  *            @arg UART_IT_PE:   Parity Error interrupt
+  *            @arg UART_IT_ERR:  Error interrupt(Frame error, noise error, overrun error)
+  * @retval None
+  */
+#define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \
+                                                           (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \
+                                                           ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK)))
+
+/** @brief  Disable the specified UART interrupt.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @param  __INTERRUPT__ specifies the UART interrupt source to disable.
+  *          This parameter can be one of the following values:
+  *            @arg UART_IT_CTS:  CTS change interrupt
+  *            @arg UART_IT_LBD:  LIN Break detection interrupt
+  *            @arg UART_IT_TXE:  Transmit Data Register empty interrupt
+  *            @arg UART_IT_TC:   Transmission complete interrupt
+  *            @arg UART_IT_RXNE: Receive Data register not empty interrupt
+  *            @arg UART_IT_IDLE: Idle line detection interrupt
+  *            @arg UART_IT_PE:   Parity Error interrupt
+  *            @arg UART_IT_ERR:  Error interrupt(Frame error, noise error, overrun error)
+  * @retval None
+  */
+#define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__)  ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
+                                                           (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
+                                                           ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK)))
+
+/** @brief  Checks whether the specified UART interrupt source is enabled or not.
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         UART Handle selects the USARTx or UARTy peripheral
+  *         (USART,UART availability and x,y values depending on device).
+  * @param  __IT__ specifies the UART interrupt source to check.
+  *          This parameter can be one of the following values:
+  *            @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5)
+  *            @arg UART_IT_LBD: LIN Break detection interrupt
+  *            @arg UART_IT_TXE: Transmit Data Register empty interrupt
+  *            @arg UART_IT_TC:  Transmission complete interrupt
+  *            @arg UART_IT_RXNE: Receive Data register not empty interrupt
+  *            @arg UART_IT_IDLE: Idle line detection interrupt
+  *            @arg UART_IT_ERR: Error interrupt
+  * @retval The new state of __IT__ (TRUE or FALSE).
+  */
+#define __HAL_UART_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28U) == UART_CR1_REG_INDEX)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28U) == UART_CR2_REG_INDEX)? \
+                                                       (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK))
+
+/** @brief  Enable CTS flow control
+  * @note   This macro allows to enable CTS hardware flow control for a given UART instance,
+  *         without need to call HAL_UART_Init() function.
+  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
+  * @note   As macro is expected to be used for modifying CTS Hw flow control feature activation, without need
+  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
+  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
+  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
+  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
+  *         It is used to select the USART peripheral (USART availability and x value depending on device).
+  * @retval None
+  */
+#define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__)        \
+  do{                                                      \
+    ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE);  \
+    (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE;        \
+  } while(0U)
+
+/** @brief  Disable CTS flow control
+  * @note   This macro allows to disable CTS hardware flow control for a given UART instance,
+  *         without need to call HAL_UART_Init() function.
+  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
+  * @note   As macro is expected to be used for modifying CTS Hw flow control feature activation, without need
+  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
+  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
+  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
+  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
+  *         It is used to select the USART peripheral (USART availability and x value depending on device).
+  * @retval None
+  */
+#define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__)        \
+  do{                                                       \
+    ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \
+    (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE);      \
+  } while(0U)
+
+/** @brief  Enable RTS flow control
+  *         This macro allows to enable RTS hardware flow control for a given UART instance,
+  *         without need to call HAL_UART_Init() function.
+  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
+  * @note   As macro is expected to be used for modifying RTS Hw flow control feature activation, without need
+  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
+  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
+  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
+  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
+  *         It is used to select the USART peripheral (USART availability and x value depending on device).
+  * @retval None
+  */
+#define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__)       \
+  do{                                                     \
+    ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \
+    (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE;       \
+  } while(0U)
+
+/** @brief  Disable RTS flow control
+  *         This macro allows to disable RTS hardware flow control for a given UART instance,
+  *         without need to call HAL_UART_Init() function.
+  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
+  * @note   As macro is expected to be used for modifying RTS Hw flow control feature activation, without need
+  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
+  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
+  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
+  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
+  * @param  __HANDLE__ specifies the UART Handle.
+  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
+  *         It is used to select the USART peripheral (USART availability and x value depending on device).
+  * @retval None
+  */
+#define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__)       \
+  do{                                                      \
+    ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\
+    (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE);     \
+  } while(0U)
+
+/** @brief  Macro to enable the UART's one bit sample method
+  * @param  __HANDLE__ specifies the UART Handle.
+  * @retval None
+  */
+#define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
+
+/** @brief  Macro to disable the UART's one bit sample method
+  * @param  __HANDLE__ specifies the UART Handle.
+  * @retval None
+  */
+#define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3\
+                                                       &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT))
+
+/** @brief  Enable UART
+  * @param  __HANDLE__ specifies the UART Handle.
+  * @retval None
+  */
+#define __HAL_UART_ENABLE(__HANDLE__)               ((__HANDLE__)->Instance->CR1 |=  USART_CR1_UE)
+
+/** @brief  Disable UART
+  * @param  __HANDLE__ specifies the UART Handle.
+  * @retval None
+  */
+#define __HAL_UART_DISABLE(__HANDLE__)              ((__HANDLE__)->Instance->CR1 &=  ~USART_CR1_UE)
+/**
+  * @}
+  */
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup UART_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
+  * @{
+  */
+
+/* Initialization/de-initialization functions  **********************************/
+HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength);
+HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod);
+HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart);
+void HAL_UART_MspInit(UART_HandleTypeDef *huart);
+void HAL_UART_MspDeInit(UART_HandleTypeDef *huart);
+
+/* Callbacks Register/UnRegister functions  ***********************************/
+#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
+HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID,
+                                            pUART_CallbackTypeDef pCallback);
+HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID);
+
+HAL_StatusTypeDef HAL_UART_RegisterRxEventCallback(UART_HandleTypeDef *huart, pUART_RxEventCallbackTypeDef pCallback);
+HAL_StatusTypeDef HAL_UART_UnRegisterRxEventCallback(UART_HandleTypeDef *huart);
+#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
+
+/**
+  * @}
+  */
+
+/** @addtogroup UART_Exported_Functions_Group2 IO operation functions
+  * @{
+  */
+
+/* IO operation functions *******************************************************/
+HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);
+
+HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen,
+                                           uint32_t Timeout);
+HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
+
+HAL_UART_RxEventTypeTypeDef HAL_UARTEx_GetRxEventType(UART_HandleTypeDef *huart);
+
+/* Transfer Abort functions */
+HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart);
+
+void HAL_UART_IRQHandler(UART_HandleTypeDef *huart);
+void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
+void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart);
+void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
+void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart);
+void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);
+void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart);
+void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart);
+void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart);
+
+void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size);
+
+/**
+  * @}
+  */
+
+/** @addtogroup UART_Exported_Functions_Group3
+  * @{
+  */
+/* Peripheral Control functions  ************************************************/
+HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart);
+HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart);
+/**
+  * @}
+  */
+
+/** @addtogroup UART_Exported_Functions_Group4
+  * @{
+  */
+/* Peripheral State functions  **************************************************/
+HAL_UART_StateTypeDef HAL_UART_GetState(const UART_HandleTypeDef *huart);
+uint32_t              HAL_UART_GetError(const UART_HandleTypeDef *huart);
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/** @defgroup UART_Private_Constants UART Private Constants
+  * @{
+  */
+/** @brief UART interruptions flag mask
+  *
+  */
+#define UART_IT_MASK                     0x0000FFFFU
+
+#define UART_CR1_REG_INDEX               1U
+#define UART_CR2_REG_INDEX               2U
+#define UART_CR3_REG_INDEX               3U
+/**
+  * @}
+  */
+
+/* Private macros ------------------------------------------------------------*/
+/** @defgroup UART_Private_Macros UART Private Macros
+  * @{
+  */
+#define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \
+                                     ((LENGTH) == UART_WORDLENGTH_9B))
+#define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B))
+#define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \
+                                    ((STOPBITS) == UART_STOPBITS_2))
+#define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \
+                                ((PARITY) == UART_PARITY_EVEN) || \
+                                ((PARITY) == UART_PARITY_ODD))
+#define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\
+                              (((CONTROL) == UART_HWCONTROL_NONE) || \
+                               ((CONTROL) == UART_HWCONTROL_RTS) || \
+                               ((CONTROL) == UART_HWCONTROL_CTS) || \
+                               ((CONTROL) == UART_HWCONTROL_RTS_CTS))
+#define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U))
+#define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \
+                              ((STATE) == UART_STATE_ENABLE))
+#define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \
+                                        ((SAMPLING) == UART_OVERSAMPLING_8))
+#define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16))
+#define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \
+                                                 ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B))
+#define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \
+                                      ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK))
+#define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 10500000U)
+#define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU)
+
+#define UART_DIV_SAMPLING16(_PCLK_, _BAUD_)            ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(4U*((uint64_t)(_BAUD_)))))
+#define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_)        (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U)
+#define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_)        ((((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U)\
+                                                         + 50U) / 100U)
+/* UART BRR = mantissa + overflow + fraction
+            = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */
+#define UART_BRR_SAMPLING16(_PCLK_, _BAUD_)            ((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \
+                                                        (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U) + \
+                                                        (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU))
+
+#define UART_DIV_SAMPLING8(_PCLK_, _BAUD_)             ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(2U*((uint64_t)(_BAUD_)))))
+#define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_)         (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U)
+#define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_)         ((((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U)\
+                                                         + 50U) / 100U)
+/* UART BRR = mantissa + overflow + fraction
+            = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */
+#define UART_BRR_SAMPLING8(_PCLK_, _BAUD_)             ((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \
+                                                        ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U) + \
+                                                        (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U))
+
+/**
+  * @}
+  */
+
+/* Private functions ---------------------------------------------------------*/
+/** @defgroup UART_Private_Functions UART Private Functions
+  * @{
+  */
+
+HAL_StatusTypeDef UART_Start_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef UART_Start_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_HAL_UART_H */
+

LICENSE.md

@@ -0,0 +1,38 @@
+GNU GENERAL PUBLIC LICENSE 
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. https://fsf.org/ 
+Everyone is permitted to copy and distribute verbatim copies 
+of this license document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for 
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed 
+to take away your freedom to share and change the works. By contrast, 
+the GNU General Public License is intended to guarantee your freedom to 
+share and change all versions of a program--to make sure it remains free 
+software for all its users. We, the Free Software Foundation, use the 
+GNU General Public License for most of our software; it applies also to 
+any other work released this way by its authors. You can apply it to 
+your programs, too.
+
+When we speak of free software, we are referring to freedom, not 
+price. Our General Public Licenses are designed to make sure that you 
+have the freedom to distribute copies of free software (and charge for 
+them if you wish), that you receive source code or can get it if you 
+want it, that you can change the software or use pieces of it in new 
+free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you 
+these rights or asking you to surrender the rights. Therefore, you have 
+certain responsibilities if you distribute copies of the software, or if 
+you modify it: responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether 
+gratis or for a fee, you must pass on to the recipients the same 
+freedoms that you received. You must make sure that they, too, receive 
+or can get the source code. And you must show them these terms so they 
+know their rights.

NOTICE.md

@@ -0,0 +1,15 @@
+# Third-Party Notices
+
+This project is built with open source components and includes third-party software:
+
+## 1. Original Application Code
+- **Copyright (c) 2026 Erick Ahmed**
+- **License:** [GNU General Public License v3.0](https://git.erickahmed.com/erickahmed/j1939_logger/src/branch/main/LICENSE.md)
+
+## 2. STM32F4 HAL Drivers
+- **Copyright (c) 2016 STMicroelectronics**
+- **License:** [BSD 3-Clause License](https://git.erickahmed.com/erickahmed/j1939_logger/src/branch/main/Drivers/STM32F4xx_HAL_Driver/LICENSE.txt)
+
+## 3. STM32 CMSIS
+- **Copyright (c) 2017 STMicroelectronics**
+- **License:** [Apache License 2.0](https://git.erickahmed.com/erickahmed/j1939_logger/src/branch/main/Drivers/CMSIS/LICENSE.txt)

can_logger.ioc

@@ -20,7 +20,8 @@ CAN2.Mode=CAN_MODE_SILENT
 CAN2.Prescaler=8
 Dma.Request0=SDIO_RX
 Dma.Request1=SDIO_TX
-Dma.RequestsNb=2
+Dma.Request2=USART1_TX
+Dma.RequestsNb=3
 Dma.SDIO_RX.0.Direction=DMA_PERIPH_TO_MEMORY
 Dma.SDIO_RX.0.FIFOMode=DMA_FIFOMODE_ENABLE
 Dma.SDIO_RX.0.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
@@ -47,12 +48,22 @@ Dma.SDIO_TX.1.PeriphDataAlignment=DMA_PDATAALIGN_WORD
 Dma.SDIO_TX.1.PeriphInc=DMA_PINC_DISABLE
 Dma.SDIO_TX.1.Priority=DMA_PRIORITY_LOW
 Dma.SDIO_TX.1.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
+Dma.USART1_TX.2.Direction=DMA_MEMORY_TO_PERIPH
+Dma.USART1_TX.2.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.USART1_TX.2.Instance=DMA2_Stream7
+Dma.USART1_TX.2.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART1_TX.2.MemInc=DMA_MINC_ENABLE
+Dma.USART1_TX.2.Mode=DMA_NORMAL
+Dma.USART1_TX.2.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART1_TX.2.PeriphInc=DMA_PINC_DISABLE
+Dma.USART1_TX.2.Priority=DMA_PRIORITY_LOW
+Dma.USART1_TX.2.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
 FREERTOS.FootprintOK=true
 FREERTOS.IPParameters=Tasks01,configUSE_NEWLIB_REENTRANT,FootprintOK
 FREERTOS.Tasks01=DefaultTask,49,128,can_listen,Default,NULL,Dynamic,NULL,NULL
 FREERTOS.configUSE_NEWLIB_REENTRANT=1
 File.Version=6
-GPIO.groupedBy=
+GPIO.groupedBy=Group By Peripherals
 KeepUserPlacement=false
 Mcu.CPN=STM32F405RGT6
 Mcu.Family=STM32F4
@@ -64,25 +75,30 @@ Mcu.IP4=NVIC
 Mcu.IP5=RCC
 Mcu.IP6=SDIO
 Mcu.IP7=SYS
-Mcu.IPNb=8
+Mcu.IP8=USART1
+Mcu.IPNb=9
 Mcu.Name=STM32F405RGTx
 Mcu.Package=LQFP64
 Mcu.Pin0=PB12
 Mcu.Pin1=PB13
-Mcu.Pin10=PB5
+Mcu.Pin10=PC12
-Mcu.Pin11=PB8
+Mcu.Pin11=PD2
-Mcu.Pin12=PB9
+Mcu.Pin12=PB5
-Mcu.Pin13=VP_FREERTOS_VS_CMSIS_V2
+Mcu.Pin13=PB6
-Mcu.Pin14=VP_SYS_VS_tim6
+Mcu.Pin14=PB7
+Mcu.Pin15=PB8
+Mcu.Pin16=PB9
+Mcu.Pin17=VP_FREERTOS_VS_CMSIS_V2
+Mcu.Pin18=VP_SYS_VS_tim6
 Mcu.Pin2=PC8
 Mcu.Pin3=PC9
-Mcu.Pin4=PC10
+Mcu.Pin4=PA9
-Mcu.Pin5=PC11
+Mcu.Pin5=PA10
-Mcu.Pin6=PC12
+Mcu.Pin6=PA13
-Mcu.Pin7=PD2
+Mcu.Pin7=PA14
-Mcu.Pin8=PB3
+Mcu.Pin8=PC10
-Mcu.Pin9=PB4
+Mcu.Pin9=PC11
-Mcu.PinsNb=15
+Mcu.PinsNb=19
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F405RGTx
@@ -91,6 +107,7 @@ MxDb.Version=DB.6.0.170
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.DMA2_Stream3_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DMA2_Stream6_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
+NVIC.DMA2_Stream7_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.ForceEnableDMAVector=true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
@@ -107,17 +124,26 @@ NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:false\:true\:false\:true\:false
 NVIC.TIM6_DAC_IRQn=true\:15\:0\:false\:false\:true\:false\:false\:true\:true
 NVIC.TimeBase=TIM6_DAC_IRQn
 NVIC.TimeBaseIP=TIM6
+NVIC.USART1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
+PA10.Mode=Asynchronous
+PA10.Signal=USART1_RX
+PA13.Mode=Serial_Wire
+PA13.Signal=SYS_JTMS-SWDIO
+PA14.Mode=Serial_Wire
+PA14.Signal=SYS_JTCK-SWCLK
+PA9.Mode=Asynchronous
+PA9.Signal=USART1_TX
 PB12.Mode=CAN_Activate
 PB12.Signal=CAN2_RX
 PB13.Mode=CAN_Activate
 PB13.Signal=CAN2_TX
-PB3.Locked=true
-PB3.Signal=GPIO_Output
-PB4.Locked=true
-PB4.Signal=GPIO_Output
 PB5.Locked=true
 PB5.Signal=GPIO_Output
+PB6.Locked=true
+PB6.Signal=GPIO_Output
+PB7.Locked=true
+PB7.Signal=GPIO_Output
 PB8.Mode=CAN_Activate
 PB8.Signal=CAN1_RX
 PB9.Locked=true
@@ -178,7 +204,7 @@ ProjectManager.ToolChainLocation=
 ProjectManager.UAScriptAfterPath=
 ProjectManager.UAScriptBeforePath=
 ProjectManager.UnderRoot=true
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_CAN1_Init-CAN1-false-HAL-true,5-MX_CAN2_Init-CAN2-false-HAL-true,6-MX_SDIO_SD_Init-SDIO-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_CAN1_Init-CAN1-false-HAL-true,5-MX_CAN2_Init-CAN2-false-HAL-true,6-MX_SDIO_SD_Init-SDIO-false-HAL-true,7-MX_USART1_UART_Init-USART1-false-HAL-true
 RCC.48MHZClocksFreq_Value=48000000
 RCC.AHBFreq_Value=168000000
 RCC.APB1CLKDivider=RCC_HCLK_DIV4
@@ -211,6 +237,8 @@ RCC.VCOI2SOutputFreq_Value=192000000
 RCC.VCOInputFreq_Value=1000000
 RCC.VCOOutputFreq_Value=336000000
 RCC.VcooutputI2S=96000000
+USART1.IPParameters=VirtualMode
+USART1.VirtualMode=VM_ASYNC
 VP_FREERTOS_VS_CMSIS_V2.Mode=CMSIS_V2
 VP_FREERTOS_VS_CMSIS_V2.Signal=FREERTOS_VS_CMSIS_V2
 VP_SYS_VS_tim6.Mode=TIM6