Release v1.7.6
diff --git a/Src/stm32f4xx_ll_pwr.c b/Src/stm32f4xx_ll_pwr.c
new file mode 100644
index 0000000..fe04bc4
--- /dev/null
+++ b/Src/stm32f4xx_ll_pwr.c
@@ -0,0 +1,85 @@
+/**
+ ******************************************************************************
+ * @file stm32f4xx_ll_pwr.c
+ * @author MCD Application Team
+ * @brief PWR LL module driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 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
+ *
+ ******************************************************************************
+ */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_ll_pwr.h"
+#include "stm32f4xx_ll_bus.h"
+
+/** @addtogroup STM32F4xx_LL_Driver
+ * @{
+ */
+
+#if defined(PWR)
+
+/** @defgroup PWR_LL PWR
+ * @{
+ */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup PWR_LL_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup PWR_LL_EF_Init
+ * @{
+ */
+
+/**
+ * @brief De-initialize the PWR registers to their default reset values.
+ * @retval An ErrorStatus enumeration value:
+ * - SUCCESS: PWR registers are de-initialized
+ * - ERROR: not applicable
+ */
+ErrorStatus LL_PWR_DeInit(void)
+{
+ /* Force reset of PWR clock */
+ LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_PWR);
+
+ /* Release reset of PWR clock */
+ LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_PWR);
+
+ return SUCCESS;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+#endif /* defined(PWR) */
+/**
+ * @}
+ */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
