view Small_CPU/Src/stm32f4xx_it_v3.c @ 328:4fe5400567e7 I2C_Improvment

Set I2C speed to 88kHz, use digital filter only and reworked idle clock recovery The errata describes a possible problem in operation between 88kHz and 100kHz => Set speed as recommended as work around. Based on reference implementation only one filter should be use. Choice was digital because only drawback is lag of wakeup functionality which is not used I2C communication may be randomly interrupted e.g. by a RTE reset or firmware update => reworked recovery function to get I2C devices in idle state again (Clk and SDA HIGH)
author ideenmodellierer
date Wed, 17 Jul 2019 22:42:15 +0200
parents 331882a89421
children 1b995079c045
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/**
  ******************************************************************************
  * @file    GPIO/GPIO_IOToggle/Src/stm32f4xx_it.c 
  * @author  MCD Application Team
  * @version V1.1.0
  * @date    26-June-2014
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and 
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "baseCPU2.h"
#include "stm32f4xx_it_v3.h"

/** @addtogroup STM32F4xx_HAL_Examples
  * @{
  */

/** @addtogroup GPIO_IOToggle
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
extern I2C_HandleTypeDef I2cHandle;
extern SPI_HandleTypeDef hspi1;
extern RTC_HandleTypeDef RTCHandle;
extern ADC_HandleTypeDef    AdcHandle;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief   This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void)
{
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval None
  */
void HardFault_Handler(void)
{
  /* Go to infinite loop when Hard Fault exception occurs */
  HAL_NVIC_SystemReset(); /* TODO Exception occures during startup and no iwdg is active ==> Call reset till iwdg is added */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void)
{
  /* Go to infinite loop when Memory Manage exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void)
{
  /* Go to infinite loop when Bus Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void)
{
  /* Go to infinite loop when Usage Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_Handler(void)
{
}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void)
{
}

/**
  * @brief  This function handles PendSVC exception.
  * @param  None
  * @retval None
  */
void PendSV_Handler(void)
{
}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
//void SysTick_Handler(void)
//{
//  HAL_IncTick();
//}


/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f4xx.s).                                               */
/******************************************************************************/
/**
  * @brief  This function handles I2C event interrupt request.  
  * @param  None
  * @retval None
  * @Note   This function is redefined in "main.h" and related to I2C data transmission     
  */
void I2Cx_EV_IRQHandler(void)
{
  HAL_I2C_EV_IRQHandler(& I2cHandle);
}

/**
  * @brief  This function handles I2C error interrupt request.
  * @param  None
  * @retval None
  * @Note   This function is redefined in "main.h" and related to I2C error
  */
void I2Cx_ER_IRQHandler(void)
{
  HAL_I2C_ER_IRQHandler(& I2cHandle);
}


/**
  * @brief  This function handles SPI interrupt request.  
  * @param  None
  * @retval None  
  */

/*
void SPI1_IRQHandler(void)
{
  HAL_SPI_IRQHandler(&hspi1);
}
*/

/**
  * @brief  This function handles DMA Tx interrupt request.  
  * @param  None
  * @retval None    
  */
void DMA2_Stream3_IRQHandler(void)
{
  HAL_DMA_IRQHandler(hspi1.hdmatx);
}

/**
  * @brief  This function handles DMA Rx interrupt request.
  * @param  None
  * @retval None  
  */
void DMA2_Stream0_IRQHandler(void)
{
  HAL_DMA_IRQHandler(hspi1.hdmarx);
}

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */


/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f4xx.s).                                               */
/******************************************************************************/


/**
  * @brief  This function handles RTC Auto wake-up interrupt request.
  * @param  None
  * @retval None
  */
void RTC_WKUP_IRQHandler(void)
{
  HAL_RTCEx_WakeUpTimerIRQHandler(&RTCHandle);
}

/**
  * @brief  This function handles External line 0 interrupt request.
  * @param  None
  * @retval None
  */
void EXTI15_10_IRQHandler(void)
{
  HAL_GPIO_EXTI_IRQHandler(0xFF);
}

/* button */
void EXTI0_IRQHandler(void)
{
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
}

/* wireless 1 + 2 => was removed from OSTC4 code => placeholder*/
void EXTI1_IRQHandler(void)
{
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_1);
}

void EXTI2_IRQHandler(void)
{
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_2);
}

/* test button */
void EXTI3_IRQHandler(void)
{
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_3);
}

/**
  * @brief  This function handles ADC interrupt request.
  * @param  None
  * @retval None
  */
void ADC_IRQHandler(void)
{
  HAL_ADC_IRQHandler(&AdcHandle);
}

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/

/**
  * @}
  */ 

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/