stm32f10x_it.c

ucos在STM32F103R8T6移植 智林 stm32开发板

/**
  ******************************************************************************
  * @file    Project/Template/stm32f10x_it.c 
  * @author  MCD Application Team
  * @version V3.0.0
  * @date    04/06/2009
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and 
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @copy
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2009 STMicroelectronics</center></h2>
  */ 

/* Includes ------------------------------------------------------------------*/
#include "includes.h"
#include "stm32f10x_it.h"

/** @addtogroup Template_Project
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M3 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief  This function handles NMI exception.
  * @param  None
  * @retval : None
  */
void NMI_Handler(void)
{
  while (1)
  {
  }
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval : None
  */
void HardFault_Handler(void)
{
  /* Go to infinite loop when Hard Fault exception occurs */
  //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)
{
    OS_CPU_SR  cpu_sr;
    OS_ENTER_CRITICAL();                                        /* Tell uC/OS-II that we are starting an ISR                */
    OSIntNesting++;
    OS_EXIT_CRITICAL();
    OSTimeTick();                                               /* Call uC/OS-II's OSTimeTick()                             */
    OSIntExit();       
}

/******************************************************************************/
/*                 STM32F10x 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_stm32f10x_xx.s).                                            */
/******************************************************************************/

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

/**
  * @}
  */ 

//CPU_SR  CPU_SR_Save   (void);
//void    CPU_SR_Restore(CPU_SR  cpu_sr);

void USART1_IRQHandler(void){
    CPU_INT08U  rx_data;
    CPU_SR      cpu_sr;
    
    CPU_CRITICAL_ENTER();                                       /* Tell uC/OS-II that we are starting an ISR                */
    OSIntNesting++;
    CPU_CRITICAL_EXIT();
    
    if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) {

        rx_data = USART_ReceiveData(USART1) & 0xFF;             /* Read one byte from the receive data register             */
        CallUART1Handler(rx_data,0);

        USART_ClearITPendingBit(USART1, USART_IT_RXNE);         /* Clear the USART1 Receive interrupt                       */
    }

    if(USART_GetITStatus(USART1, USART_IT_TXE) != RESET) {
        CallUART1Handler(0,1);

        USART_ClearITPendingBit(USART1, USART_IT_TXE);          /* Clear the USART1 transmit interrupt                      */
    }  
    OSIntExit();
}

/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/