Diff: stm32f4xx_exti_mort.c

Revision:

0:34ee385f4d2d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32f4xx_exti_mort.c	Sat Oct 23 05:49:09 2021 +0000
@@ -0,0 +1,318 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_exti.c
+  * @author  MCD Application Team
+  * @version V1.8.0
+  * @date    04-November-2016
+  * @brief   This file provides firmware functions to manage the following 
+  *          functionalities of the EXTI_MORT peripheral:
+  *           + Initialization and Configuration
+  *           + Interrupts and flags management
+  *
+@verbatim  
+
+ ===============================================================================
+                              ##### EXTI_MORT features #####
+ ===============================================================================
+
+ [..] External interrupt/event lines are mapped as following:
+   (#) All available GPIO pins are connected to the 16 external 
+       interrupt/event lines from EXTI0 to EXTI15.
+   (#) EXTI_MORT line 16 is connected to the PVD Output
+   (#) EXTI_MORT line 17 is connected to the RTC Alarm event
+   (#) EXTI_MORT line 18 is connected to the USB OTG FS Wakeup from suspend event
+   (#) EXTI_MORT line 19 is connected to the Ethernet Wakeup event
+   (#) EXTI_MORT line 20 is connected to the USB OTG HS (configured in FS) Wakeup event 
+   (#) EXTI_MORT line 21 is connected to the RTC Tamper and Time Stamp events
+   (#) EXTI_MORT line 22 is connected to the RTC Wakeup event
+   (#) EXTI_MORT line 23 is connected to the LPTIM Wakeup event 
+
+                       ##### How to use this driver #####
+ ===============================================================================
+ 
+ [..] In order to use an I/O pin as an external interrupt source, follow steps 
+      below:
+   (#) Configure the I/O in input mode using GPIO_Init()
+   (#) Select the input source pin for the EXTI_MORT line using SYSCFG_EXTILineConfig()
+   (#) Select the mode(interrupt, event) and configure the trigger 
+       selection (Rising, falling or both) using EXTI_Init_mort()
+   (#) Configure NVIC IRQ channel mapped to the EXTI_MORT line using NVIC_Init()
+
+ [..]     
+   (@) SYSCFG APB clock must be enabled to get write access to SYSCFG_EXTICRx
+       registers using RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
+
+@endverbatim
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_exti_mort.h"
+
+/** @addtogroup STM32F4xx_StdPeriph_Driver
+  * @{
+  */
+
+/** @defgroup EXTI_MORT 
+  * @brief EXTI_MORT driver modules
+  * @{
+  */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+
+#define EXTI_LINENONE_MORT    ((uint32_t)0x00000)  /* No interrupt selected */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup EXTI_Private_Functions
+  * @{
+  */
+
+/** @defgroup EXTI_Group1 Initialization and Configuration functions
+ *  @brief   Initialization and Configuration functions 
+ *
+@verbatim   
+ ===============================================================================
+             ##### Initialization and Configuration functions #####
+ ===============================================================================
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Deinitializes the EXTI_MORT peripheral registers to their default reset values.
+  * @param  None
+  * @retval None
+  */
+void EXTI_DeInit_mort(void)
+{
+  EXTI_MORT->IMR = 0x00000000;
+  EXTI_MORT->EMR = 0x00000000;
+  EXTI_MORT->RTSR = 0x00000000;
+  EXTI_MORT->FTSR = 0x00000000;
+  EXTI_MORT->PR = 0x007FFFFF;
+}
+
+/**
+  * @brief  Initializes the EXTI_MORT peripheral according to the specified
+  *         parameters in the EXTI_InitStruct.
+  * @param  EXTI_InitStruct: pointer to a EXTI_InitTypeDef_mort structure
+  *         that contains the configuration information for the EXTI_MORT peripheral.
+  * @retval None
+  */
+void EXTI_Init_mort(EXTI_InitTypeDef_mort* EXTI_InitStruct)
+{
+  uint32_t tmp = 0;
+
+  /* Check the parameters */
+  assert_param(IS_EXTI_MODE_MORT(EXTI_InitStruct->EXTI_Mode));
+  assert_param(IS_EXTI_TRIGGER_MORT(EXTI_InitStruct->EXTI_Trigger));
+  assert_param(IS_EXTI_LINE_MORT(EXTI_InitStruct->EXTI_Line));  
+  assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->EXTI_LineCmd));
+
+  tmp = (uint32_t)EXTI_BASE_MORT;
+     
+  if (EXTI_InitStruct->EXTI_LineCmd != DISABLE)
+  {
+    /* Clear EXTI_MORT line configuration */
+    EXTI_MORT->IMR &= ~EXTI_InitStruct->EXTI_Line;
+    EXTI_MORT->EMR &= ~EXTI_InitStruct->EXTI_Line;
+    
+    tmp += EXTI_InitStruct->EXTI_Mode;
+
+    *(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
+
+    /* Clear Rising Falling edge configuration */
+    EXTI_MORT->RTSR &= ~EXTI_InitStruct->EXTI_Line;
+    EXTI_MORT->FTSR &= ~EXTI_InitStruct->EXTI_Line;
+    
+    /* Select the trigger for the selected external interrupts */
+    if (EXTI_InitStruct->EXTI_Trigger == EXTI_Trigger_Rising_Falling)
+    {
+      /* Rising Falling edge */
+      EXTI_MORT->RTSR |= EXTI_InitStruct->EXTI_Line;
+      EXTI_MORT->FTSR |= EXTI_InitStruct->EXTI_Line;
+    }
+    else
+    {
+      tmp = (uint32_t)EXTI_BASE_MORT;
+      tmp += EXTI_InitStruct->EXTI_Trigger;
+
+      *(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
+    }
+  }
+  else
+  {
+    tmp += EXTI_InitStruct->EXTI_Mode;
+
+    /* Disable the selected external lines */
+    *(__IO uint32_t *) tmp &= ~EXTI_InitStruct->EXTI_Line;
+  }
+}
+
+/**
+  * @brief  Fills each EXTI_InitStruct member with its reset value.
+  * @param  EXTI_InitStruct: pointer to a EXTI_InitTypeDef_mort structure which will
+  *         be initialized.
+  * @retval None
+  */
+void EXTI_StructInit_mort(EXTI_InitTypeDef_mort* EXTI_InitStruct)
+{
+  EXTI_InitStruct->EXTI_Line = EXTI_LINENONE_MORT;
+  EXTI_InitStruct->EXTI_Mode = EXTI_Mode_Interrupt;
+  EXTI_InitStruct->EXTI_Trigger = EXTI_Trigger_Falling;
+  EXTI_InitStruct->EXTI_LineCmd = DISABLE;
+}
+
+/**
+  * @brief  Generates a Software interrupt on selected EXTI_MORT line.
+  * @param  EXTI_Line: specifies the EXTI_MORT line on which the software interrupt
+  *         will be generated.
+  *         This parameter can be any combination of EXTI_Linex where x can be (0..22)
+  * @retval None
+  */
+void EXTI_GenerateSWInterrupt_mort(uint32_t EXTI_Line)
+{
+  /* Check the parameters */
+  assert_param(IS_EXTI_LINE_MORT(EXTI_Line));
+  
+  EXTI_MORT->SWIER |= EXTI_Line;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup EXTI_Group2 Interrupts and flags management functions
+ *  @brief   Interrupts and flags management functions 
+ *
+@verbatim   
+ ===============================================================================
+             ##### Interrupts and flags management functions #####
+ ===============================================================================
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Checks whether the specified EXTI_MORT line flag is set or not.
+  * @param  EXTI_Line: specifies the EXTI_MORT line flag to check.
+  *          This parameter can be EXTI_Linex where x can be(0..22)
+  * @retval The new state of EXTI_Line (SET or RESET).
+  */
+FlagStatus EXTI_GetFlagStatus_mort(uint32_t EXTI_Line)
+{
+  FlagStatus bitstatus = RESET;
+  /* Check the parameters */
+  assert_param(IS_GET_EXTI_LINE_MORT(EXTI_Line));
+  
+  if ((EXTI_MORT->PR & EXTI_Line) != (uint32_t)RESET)
+  {
+    bitstatus = SET;
+  }
+  else
+  {
+    bitstatus = RESET;
+  }
+  return bitstatus;
+}
+
+/**
+  * @brief  Clears the EXTI_MORT's line pending flags.
+  * @param  EXTI_Line: specifies the EXTI_MORT lines flags to clear.
+  *          This parameter can be any combination of EXTI_Linex where x can be (0..22)
+  * @retval None
+  */
+void EXTI_ClearFlag_mort(uint32_t EXTI_Line)
+{
+  /* Check the parameters */
+  assert_param(IS_EXTI_LINE_MORT(EXTI_Line));
+  
+  EXTI_MORT->PR = EXTI_Line;
+}
+
+/**
+  * @brief  Checks whether the specified EXTI_MORT line is asserted or not.
+  * @param  EXTI_Line: specifies the EXTI_MORT line to check.
+  *          This parameter can be EXTI_Linex where x can be(0..22)
+  * @retval The new state of EXTI_Line (SET or RESET).
+  */
+ITStatus EXTI_GetITStatus_mort(uint32_t EXTI_Line)
+{
+  FlagStatus bitstatus = RESET;
+  /* Check the parameters */
+  assert_param(IS_GET_EXTI_LINE_MORT(EXTI_Line));
+  
+  if ((EXTI_MORT->PR & EXTI_Line) != (uint32_t)RESET)
+  {
+    bitstatus = SET;
+  }
+  else
+  {
+    bitstatus = RESET;
+  }
+  return bitstatus;
+  
+}
+
+/**
+  * @brief  Clears the EXTI_MORT's line pending bits.
+  * @param  EXTI_Line: specifies the EXTI_MORT lines to clear.
+  *          This parameter can be any combination of EXTI_Linex where x can be (0..22)
+  * @retval None
+  */
+void EXTI_ClearITPendingBit_mort(uint32_t EXTI_Line)
+{
+  /* Check the parameters */
+  assert_param(IS_EXTI_LINE_MORT(EXTI_Line));
+  
+  EXTI_MORT->PR = EXTI_Line;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
+
+
+