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diff --git a/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart_ex.c b/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart_ex.c
new file mode 100644
index 0000000..547bbc9
--- /dev/null
+++ b/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart_ex.c
@@ -0,0 +1,138 @@
+/**
+  ******************************************************************************
+  * @file    stm32f0xx_hal_usart_ex.c
+  * @author  MCD Application Team
+  * @brief   Extended USART HAL module driver.
+  *          This file provides firmware functions to manage the following extended
+  *          functionalities of the Universal Synchronous Receiver Transmitter Peripheral (USART).
+  *           + Peripheral Control functions
+  *
+  *
+  @verbatim
+  ==============================================================================
+               ##### USART peripheral extended features  #####
+  ==============================================================================
+
+    (#) FIFO mode enabling/disabling and RX/TX FIFO threshold programming.
+
+        -@- When USART operates in FIFO mode, FIFO mode must be enabled prior
+            starting RX/TX transfers. Also RX/TX FIFO thresholds must be
+            configured prior starting RX/TX transfers.
+
+    (#) Slave mode enabling/disabling and NSS pin configuration.
+
+        -@- When USART operates in Slave mode, Slave mode must be enabled prior
+            starting RX/TX transfers.
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_hal.h"
+
+/** @addtogroup STM32F0xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup USARTEx USARTEx
+  * @brief USART Extended HAL module driver
+  * @{
+  */
+
+#ifdef HAL_USART_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+
+/** @defgroup USARTEx_Exported_Functions  USARTEx Exported Functions
+  * @{
+  */
+
+/** @defgroup USARTEx_Exported_Functions_Group1 IO operation functions
+  * @brief Extended USART Transmit/Receive functions
+  *
+@verbatim
+ ===============================================================================
+                      ##### IO operation functions #####
+ ===============================================================================
+    This subsection provides a set of FIFO mode related callback functions.
+
+    (#) TX/RX Fifos Callbacks:
+        (+) HAL_USARTEx_RxFifoFullCallback()
+        (+) HAL_USARTEx_TxFifoEmptyCallback()
+
+@endverbatim
+  * @{
+  */
+
+
+/**
+  * @}
+  */
+
+/** @defgroup USARTEx_Exported_Functions_Group2 Peripheral Control functions
+  * @brief    Extended Peripheral Control functions
+  *
+@verbatim
+ ===============================================================================
+                      ##### Peripheral Control functions #####
+ ===============================================================================
+    [..] This section provides the following functions:
+     (+) HAL_USARTEx_EnableSPISlaveMode() API enables the SPI slave mode
+     (+) HAL_USARTEx_DisableSPISlaveMode() API disables the SPI slave mode
+     (+) HAL_USARTEx_ConfigNSS API configures the Slave Select input pin (NSS)
+     (+) HAL_USARTEx_EnableFifoMode() API enables the FIFO mode
+     (+) HAL_USARTEx_DisableFifoMode() API disables the FIFO mode
+     (+) HAL_USARTEx_SetTxFifoThreshold() API sets the TX FIFO threshold
+     (+) HAL_USARTEx_SetRxFifoThreshold() API sets the RX FIFO threshold
+
+
+@endverbatim
+  * @{
+  */
+
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup USARTEx_Private_Functions
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_USART_MODULE_ENABLED */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/