latest version

Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_crc.c

@@ -0,0 +1,328 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_hal_crc.c
+  * @author  MCD Application Team
+  * @brief   CRC HAL module driver.
+  *          This file provides firmware functions to manage the following
+  *          functionalities of the Cyclic Redundancy Check (CRC) peripheral:
+  *           + Initialization and de-initialization functions
+  *           + Peripheral Control functions
+  *           + Peripheral State functions
+  *
+  ******************************************************************************
+  * @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.
+  *
+  ******************************************************************************
+  @verbatim
+ ===============================================================================
+                     ##### How to use this driver #####
+ ===============================================================================
+    [..]
+         (+) Enable CRC AHB clock using __HAL_RCC_CRC_CLK_ENABLE();
+         (+) Initialize CRC calculator
+             (++) specify generating polynomial (peripheral default or non-default one)
+             (++) specify initialization value (peripheral default or non-default one)
+             (++) specify input data format
+             (++) specify input or output data inversion mode if any
+         (+) Use HAL_CRC_Accumulate() function to compute the CRC value of the
+             input data buffer starting with the previously computed CRC as
+             initialization value
+         (+) Use HAL_CRC_Calculate() function to compute the CRC value of the
+             input data buffer starting with the defined initialization value
+             (default or non-default) to initiate CRC calculation
+
+  @endverbatim
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup CRC CRC
+  * @brief CRC HAL module driver.
+  * @{
+  */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+
+/** @defgroup CRC_Exported_Functions CRC Exported Functions
+  * @{
+  */
+
+/** @defgroup CRC_Exported_Functions_Group1 Initialization and de-initialization functions
+  *  @brief    Initialization and Configuration functions.
+  *
+@verbatim
+ ===============================================================================
+            ##### Initialization and de-initialization functions #####
+ ===============================================================================
+    [..]  This section provides functions allowing to:
+      (+) Initialize the CRC according to the specified parameters
+          in the CRC_InitTypeDef and create the associated handle
+      (+) DeInitialize the CRC peripheral
+      (+) Initialize the CRC MSP (MCU Specific Package)
+      (+) DeInitialize the CRC MSP
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initialize the CRC according to the specified
+  *         parameters in the CRC_InitTypeDef and create the associated handle.
+  * @param  hcrc CRC handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc)
+{
+  /* Check the CRC handle allocation */
+  if (hcrc == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
+
+  if (hcrc->State == HAL_CRC_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hcrc->Lock = HAL_UNLOCKED;
+    /* Init the low level hardware */
+    HAL_CRC_MspInit(hcrc);
+  }
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_READY;
+
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @brief  DeInitialize the CRC peripheral.
+  * @param  hcrc CRC handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc)
+{
+  /* Check the CRC handle allocation */
+  if (hcrc == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the parameters */
+  assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
+
+  /* Check the CRC peripheral state */
+  if (hcrc->State == HAL_CRC_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_BUSY;
+
+  /* Reset CRC calculation unit */
+  __HAL_CRC_DR_RESET(hcrc);
+
+  /* Reset IDR register content */
+  __HAL_CRC_SET_IDR(hcrc, 0);
+
+  /* DeInit the low level hardware */
+  HAL_CRC_MspDeInit(hcrc);
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_RESET;
+
+  /* Process unlocked */
+  __HAL_UNLOCK(hcrc);
+
+  /* Return function status */
+  return HAL_OK;
+}
+
+/**
+  * @brief  Initializes the CRC MSP.
+  * @param  hcrc CRC handle
+  * @retval None
+  */
+__weak void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcrc);
+
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CRC_MspInit can be implemented in the user file
+   */
+}
+
+/**
+  * @brief  DeInitialize the CRC MSP.
+  * @param  hcrc CRC handle
+  * @retval None
+  */
+__weak void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hcrc);
+
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_CRC_MspDeInit can be implemented in the user file
+   */
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions
+  *  @brief    management functions.
+  *
+@verbatim
+ ===============================================================================
+                      ##### Peripheral Control functions #####
+ ===============================================================================
+    [..]  This section provides functions allowing to:
+      (+) compute the 32-bit CRC value of a 32-bit data buffer
+          using combination of the previous CRC value and the new one.
+
+       [..]  or
+
+      (+) compute the 32-bit CRC value of a 32-bit data buffer
+          independently of the previous CRC value.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Compute the 32-bit CRC value of a 32-bit data buffer
+  *         starting with the previously computed CRC as initialization value.
+  * @param  hcrc CRC handle
+  * @param  pBuffer pointer to the input data buffer.
+  * @param  BufferLength input data buffer length (number of uint32_t words).
+  * @retval uint32_t CRC (returned value LSBs for CRC shorter than 32 bits)
+  */
+uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
+{
+  uint32_t index;      /* CRC input data buffer index */
+  uint32_t temp = 0U;  /* CRC output (read from hcrc->Instance->DR register) */
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_BUSY;
+
+  /* Enter Data to the CRC calculator */
+  for (index = 0U; index < BufferLength; index++)
+  {
+    hcrc->Instance->DR = pBuffer[index];
+  }
+  temp = hcrc->Instance->DR;
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_READY;
+
+  /* Return the CRC computed value */
+  return temp;
+}
+
+/**
+  * @brief  Compute the 32-bit CRC value of a 32-bit data buffer
+  *         starting with hcrc->Instance->INIT as initialization value.
+  * @param  hcrc CRC handle
+  * @param  pBuffer pointer to the input data buffer.
+  * @param  BufferLength input data buffer length (number of uint32_t words).
+  * @retval uint32_t CRC (returned value LSBs for CRC shorter than 32 bits)
+  */
+uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
+{
+  uint32_t index;      /* CRC input data buffer index */
+  uint32_t temp = 0U;  /* CRC output (read from hcrc->Instance->DR register) */
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_BUSY;
+
+  /* Reset CRC Calculation Unit (hcrc->Instance->INIT is
+  *  written in hcrc->Instance->DR) */
+  __HAL_CRC_DR_RESET(hcrc);
+
+  /* Enter 32-bit input data to the CRC calculator */
+  for (index = 0U; index < BufferLength; index++)
+  {
+    hcrc->Instance->DR = pBuffer[index];
+  }
+  temp = hcrc->Instance->DR;
+
+  /* Change CRC peripheral state */
+  hcrc->State = HAL_CRC_STATE_READY;
+
+  /* Return the CRC computed value */
+  return temp;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions
+  *  @brief    Peripheral State functions.
+  *
+@verbatim
+ ===============================================================================
+                      ##### Peripheral State functions #####
+ ===============================================================================
+    [..]
+    This subsection permits to get in run-time the status of the peripheral.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Return the CRC handle state.
+  * @param  hcrc CRC handle
+  * @retval HAL state
+  */
+HAL_CRC_StateTypeDef HAL_CRC_GetState(const CRC_HandleTypeDef *hcrc)
+{
+  /* Return CRC handle state */
+  return hcrc->State;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+
+#endif /* HAL_CRC_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */

Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c

@@ -8,6 +8,17 @@
   *           + Initialization and de-initialization functions
   *           + IO operation functions
   *
+  ******************************************************************************
+  * @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.
+  *
+  ******************************************************************************
   @verbatim
   ==============================================================================
                     ##### GPIO Peripheral features #####
@@ -88,17 +99,6 @@
 
   @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 ------------------------------------------------------------------*/
@@ -295,26 +295,6 @@ void HAL_GPIO_Init(GPIO_TypeDef  *GPIOx, GPIO_InitTypeDef *GPIO_Init)
         AFIO->EXTICR[position >> 2u] = temp;
 
 
-        /* Configure the interrupt mask */
-        if ((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT)
-        {
-          SET_BIT(EXTI->IMR, iocurrent);
-        }
-        else
-        {
-          CLEAR_BIT(EXTI->IMR, iocurrent);
-        }
-
-        /* Configure the event mask */
-        if ((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT)
-        {
-          SET_BIT(EXTI->EMR, iocurrent);
-        }
-        else
-        {
-          CLEAR_BIT(EXTI->EMR, iocurrent);
-        }
-
         /* Enable or disable the rising trigger */
         if ((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE)
         {
@@ -334,6 +314,26 @@ void HAL_GPIO_Init(GPIO_TypeDef  *GPIOx, GPIO_InitTypeDef *GPIO_Init)
         {
           CLEAR_BIT(EXTI->FTSR, iocurrent);
         }
+
+        /* Configure the event mask */
+        if ((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT)
+        {
+          SET_BIT(EXTI->EMR, iocurrent);
+        }
+        else
+        {
+          CLEAR_BIT(EXTI->EMR, iocurrent);
+        }
+
+        /* Configure the interrupt mask */
+        if ((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT)
+        {
+          SET_BIT(EXTI->IMR, iocurrent);
+        }
+        else
+        {
+          CLEAR_BIT(EXTI->IMR, iocurrent);
+        }
       }
     }
 
@@ -375,16 +375,16 @@ void HAL_GPIO_DeInit(GPIO_TypeDef  *GPIOx, uint32_t GPIO_Pin)
       tmp &= 0x0FuL << (4u * (position & 0x03u));
       if (tmp == (GPIO_GET_INDEX(GPIOx) << (4u * (position & 0x03u))))
       {
-        tmp = 0x0FuL << (4u * (position & 0x03u));
-        CLEAR_BIT(AFIO->EXTICR[position >> 2u], tmp);
-
         /* Clear EXTI line configuration */
         CLEAR_BIT(EXTI->IMR, (uint32_t)iocurrent);
         CLEAR_BIT(EXTI->EMR, (uint32_t)iocurrent);
 
         /* Clear Rising Falling edge configuration */
-        CLEAR_BIT(EXTI->RTSR, (uint32_t)iocurrent);
         CLEAR_BIT(EXTI->FTSR, (uint32_t)iocurrent);
+        CLEAR_BIT(EXTI->RTSR, (uint32_t)iocurrent);
+        
+        tmp = 0x0FuL << (4u * (position & 0x03u));
+        CLEAR_BIT(AFIO->EXTICR[position >> 2u], tmp);
       }
       /*------------------------- GPIO Mode Configuration --------------------*/
       /* Check if the current bit belongs to first half or last half of the pin count number
@@ -491,7 +491,7 @@ void HAL_GPIO_TogglePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
   /* Check the parameters */
   assert_param(IS_GPIO_PIN(GPIO_Pin));
 
-  /* get current Ouput Data Register value */
+  /* get current Output Data Register value */
   odr = GPIOx->ODR;
 
   /* Set selected pins that were at low level, and reset ones that were high */
@@ -505,7 +505,7 @@ void HAL_GPIO_TogglePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
 *         the next reset.
 * @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral
 * @param  GPIO_Pin: specifies the port bit to be locked.
-*         This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
+*         This parameter can be any combination of GPIO_PIN_x where x can be (0..15).
 * @retval None
 */
 HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
@@ -584,4 +584,3 @@ __weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
   * @}
   */
 
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c

@@ -7,6 +7,17 @@
   *          functionalities of the General Purpose Input/Output (GPIO) extension peripheral.
   *           + Extended features functions
   *
+  ******************************************************************************
+  * @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.
+  *
+  ******************************************************************************
   @verbatim
   ==============================================================================
                     ##### GPIO Peripheral extension features #####
@@ -23,17 +34,6 @@
 
   @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 ------------------------------------------------------------------*/
@@ -124,4 +124,3 @@ void HAL_GPIOEx_DisableEventout(void)
   * @}
   */
 
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/