MNC-12x5/Src/stm32g0xx_it.c

/**
  ******************************************************************************
  * @file    stm32g0xx_it.c
  * @brief   Interrupt Service Routines.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 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 "main.h"
#include "stm32g0xx_it.h"

/* Private includes ----------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private user code ---------------------------------------------------------*/
/* External variables --------------------------------------------------------*/

/******************************************************************************/
/*           Cortex-M0+ Processor Interruption and Exception Handlers          */
/******************************************************************************/
/**
  * @brief This function handles Non maskable interrupt.
  */
void NMI_Handler(void)
{
  while (1)
  {
  }
}

/**
  * @brief This function handles Hard fault interrupt.
  */
void HardFault_Handler(void)
{
  // tube power off
  GPIOA->BSRR = 0x10;
  // red led
  TIM1->CCR2 = 0xff; TIM1->CCR3 = 0; TIM1->CCR4 = 0;

  /* https://habr.com/ru/post/511924/ */
  struct 
  {
    uint32_t r0;
    uint32_t r1;
    uint32_t r2;
    uint32_t r3;
    uint32_t r12;
    uint32_t lr;
    uint32_t pc;
    uint32_t psr;
  } * stack_ptr; //Указатель на текущее значение стека(SP)

  asm (
      "TST lr, #4 \n" //Тестируем 3-й бит указателя стека (побитовое И)
      "ITE EQ \n"   //Значение указателя стека имеет бит 3?
      "MRSEQ %[ptr], MSP  \n"  //Да, сохраняем основной указатель стека
      "MRSNE %[ptr], PSP  \n"  //Нет, сохраняем указатель стека процесса
      : [ptr] "=r" (stack_ptr)
  );
  // there plase break-point...
  while (1)
  {
  }
}

/**
  * @brief This function handles System service call via SWI instruction.
  */
void SVC_Handler(void)
{
}

/**
  * @brief This function handles Pendable request for system service.
  */
void PendSV_Handler(void)
{
}

/******************************************************************************/
/* STM32G0xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32g0xx.s).                    */
/******************************************************************************/

/**
  * @brief This function handles EXTI line 4 to 15 interrupts.
  */

void EXTI4_15_IRQHandler(void)
{
  if ((EXTI->FPR1 & EXTI_IMR1_IM14) != 0)
  {
    EXTI->FPR1 = EXTI_IMR1_IM14;
    Flag.RTC_IRQ = 1;
    ES_PlaceEvent(evNewSecond);
  }
}

/**
  * @brief This function handles DMA1 channel 1 interrupt.
  */
void DMA1_Channel1_IRQHandler(void)
{
  if ((DMA1->ISR & DMA_IFCR_CTCIF1) != 0) {
    DMA1->IFCR |= DMA_IFCR_CTCIF1; // reset IRQ flag

    Flag.SPI_TX_End = 1;

    /* Stop SPI-DMA transfer */
    DMA1_Channel1->CCR &= ~DMA_CCR_EN;

    /* Wait for end SPI transmit */
    LATCH_DOWN;
    while ((SPI1->SR & SPI_SR_FTLVL) != 0) {};
    while ((SPI1->SR & SPI_SR_BSY) != 0) {};
    LATCH_UP;
  }
}

/**
  * @brief This function handles DMA1 channel 2 and channel 3 interrupts.
  */
void DMA1_Channel2_3_IRQHandler(void)
{
  if ((DMA1->ISR & DMA_ISR_TCIF2) != 0) {
    /* reset IRQ flag */
    DMA1->IFCR |= DMA_IFCR_CTCIF2;
    /* Disable DMA channels for I2C RX */
    DMA1_Channel2->CCR &= ~DMA_CCR_EN;
    Flag.I2C_RX_End = 1;
  }
  if ((DMA1->ISR & DMA_ISR_TEIF2) != 0) {
    DMA1->IFCR |= DMA_IFCR_CTEIF2;
    DMA1_Channel2->CCR &= ~DMA_CCR_EN;
    Flag.I2C_RX_End = 1;
    Flag.I2C_RX_Err = 1;
  }

  if ((DMA1->ISR & DMA_ISR_TCIF3) != 0) {
    /* reset IRQ flag */
    DMA1->IFCR |= DMA_IFCR_CTCIF3;
    /* Disable DMA channels for I2C TX */
    DMA1_Channel3->CCR &= ~DMA_CCR_EN;
    Flag.I2C_TX_End = 1;
  }
  if ((DMA1->ISR & DMA_ISR_TEIF3) != 0) {
    DMA1->IFCR |= DMA_IFCR_CTEIF3;
    DMA1_Channel3->CCR &= ~DMA_CCR_EN;
    Flag.I2C_TX_End = 1;
    Flag.I2C_TX_Err = 1;
  }
}

/**
  * @brief This function handles TIM14 global interrupt.
  */
void TIM14_IRQHandler(void)
{
  if ((TIM14->SR & TIM_SR_UIF) != 0) {
    /* Update interrupt flag */
    TIM14->SR |= TIM_SR_UIF;
  }
  if ((TIM14->SR & TIM_SR_CC1IF) != 0) {
    /* Capture/Compare Interrupt */
    TIM14->SR |= TIM_SR_CC1IF;

    /* disable unneeded channel */
/*
    if (Flag.Blink_1 != 0) {
      TUBE_A_OFF;
    }
    if (Flag.Blink_2 != 0) {
      TUBE_B_OFF;
    }
    if (Flag.Blink_3 != 0) {
      TUBE_C_OFF;
    }
    if (Flag.Blink_4 != 0) {
      TUBE_D_OFF;
    }
    if (Flag.Blink_5 != 0) {
      TUBE_E_OFF;
    }
*/
  }
}

/**
  * @brief This function handles TIM16 global interrupt.
  */
void TIM16_IRQHandler(void)
{
  if ((TIM16->SR & TIM_SR_UIF) != 0) {
    /* Update interrupt flag */
    TIM16->SR |= TIM_SR_UIF;
  }
}

/**
  * @brief This function handles TIM17 global interrupt.
  */
void TIM17_IRQHandler(void)
{
  if ((TIM17->SR & TIM_SR_UIF) != 0) {
    /* Update interrupt flag */
    TIM17->SR |= TIM_SR_UIF;
  }
}

/**
  * @brief This function handles SPI1 global interrupt.
  */
void SPI1_IRQHandler(void)
{
}

/**
  * @brief This function handles USART1 global interrupt / USART1 wake-up interrupt through EXTI line 25.
  */
void USART1_IRQHandler(void)
{
}

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