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36号外部中断和定时器中断

菜鸟
2014-11-27 21:44:42     打赏
/**外部中断
  ****************************************************************************** 
  * @file    EXTI/EXTI_Config/main.c  
  * @author  MCD Application Team 
  * @version V3.5.0 
  * @date    08-April-2011 
  * @brief   Main program body 
  ****************************************************************************** 
  * @attention 
  * 
  * 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. 
  * 
 
 
  ****************************************************************************** 
  void USART_int(long BaudRate)    
{    
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);    
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;    
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;    
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;     
    GPIO_Init(GPIOA, &GPIO_InitStructure);    
    /* PA10 USART1_Rx  */    
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;    
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;    
    GPIO_Init(GPIOA, &GPIO_InitStructure);    
  /* USARTx configured as follow:  
        - BaudRate = 115200 baud    
        - Word Length = 8 Bits  
        - One Stop Bit  
        - No parity  
        - Hardware flow control disabled (RTS and CTS signals)  
        - Receive and transmit enabled  
  */    
  USART_InitStructure.USART_BaudRate = BaudRate;//??????    
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit    
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//????1    
  USART_InitStructure.USART_Parity = USART_Parity_No;//????    
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????none    
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//??????????    
    USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;         
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;          
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;          
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;    
    USART_ClockInit(USART1, &USART_ClockInitStructure);    
  USART_Init(USART1, &USART_InitStructure);    
  USART_Cmd(USART1, ENABLE);    
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);    
 USART_Cmd(USART1, ENABLE);    
     
  /* Configure four bit for preemption priority */    
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);    
  /* Enable the USART1 Interrupt */    
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; //    
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 15;    
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    
  NVIC_Init(&NVIC_InitStructure);    
}    
    
/* Private functions ---------------------------------------------------------*/    
    
/**  
  * @brief  Main program.  
  * @param  None  
  * @retval None  
  */    
int main(void)    
{RCC_Configuration();    
      
  /* Configure PA.00 in interrupt mode */    
  EXTIkeyS1_Config();    
    
  /* Configure PB.09 or PG.08 in interrupt mode */    
  EXTIkeyS2_Config();    
    EXTIkeyS3_Config();    
  EXTIkeyS4_Config();    
USART_int(115200);    
    printf("Config done,waiting for interrupt......\r\n");    
              
  while (1)    
  {    
  }    
}    
    
/**  
  * @brief  Configure PA.00 in interrupt mode  
  * @param  None  
  * @retval None  
  */    
void EXTIkeyS1_Config(void)    
{    
  /* Enable GPIOA clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);    
      
  /* Configure PA.00 pin as input floating */    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;    
  GPIO_Init(GPIOC, &GPIO_InitStructure);    
    
  /* Enable AFIO clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);    
    
  /* Connect EXTI0 Line to PA.00 pin */    
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource8);    
    
  /* Configure EXTI0 line */    
  EXTI_InitStructure.EXTI_Line = EXTI_Line8;    
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;    
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;      
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;    
  EXTI_Init(&EXTI_InitStructure);    
    
  /* Enable and set EXTI0 Interrupt to the lowest priority */    
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;    
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    
  NVIC_Init(&NVIC_InitStructure);    
}    
    
void EXTIkeyS2_Config(void)    
{    
  /* Enable GPIOA clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);    
      
  /* Configure PA.00 pin as input floating */    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;    
  GPIO_Init(GPIOC, &GPIO_InitStructure);    
    
  /* Enable AFIO clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);    
    
  /* Connect EXTI0 Line to PA.00 pin */    
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource9);    
    
  /* Configure EXTI0 line */    
  EXTI_InitStructure.EXTI_Line = EXTI_Line9;    
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;    
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;      
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;    
  EXTI_Init(&EXTI_InitStructure);    
    
  /* Enable and set EXTI0 Interrupt to the lowest priority */    
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;    
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    
  NVIC_Init(&NVIC_InitStructure);    
}    
    
/**  
  * @brief  Configure PB.09 or PG.08 in interrupt mode  
  * @param  None  
  * @retval None  
  */    
void EXTIkeyS3_Config(void)    
{    
  /* Enable GPIOB clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);    
    
  /* Configure PB.09 pin as input floating */    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10|GPIO_Pin_11;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;    
  GPIO_Init(GPIOC, &GPIO_InitStructure);    
    
  /* Enable AFIO clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);    
  /* Connect EXTI9 Line to PB.09 pin */    
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource10);    
    
  /* Configure EXTI9 line */    
  EXTI_InitStructure.EXTI_Line = EXTI_Line10|EXTI_Line11;    
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;    
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;    
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;    
  EXTI_Init(&EXTI_InitStructure);    
    
  /* Enable and set EXTI9_5 Interrupt to the lowest priority */    
  NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;    
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    
    
  NVIC_Init(&NVIC_InitStructure);    
}    
void EXTIkeyS4_Config(void)    
{    
  /* Enable GPIOB clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);    
    
  /* Configure PB.09 pin as input floating */    
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;    
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;    
  GPIO_Init(GPIOC, &GPIO_InitStructure);    
    
  /* Enable AFIO clock */    
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);    
  /* Connect EXTI9 Line to PB.09 pin */    
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource11);    
    
  /* Configure EXTI9 line */    
  EXTI_InitStructure.EXTI_Line = EXTI_Line11;    
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;    
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;    
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;    
  EXTI_Init(&EXTI_InitStructure);    
    
  /* Enable and set EXTI9_5 Interrupt to the lowest priority */    
  NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;    
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;    
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    
    
  NVIC_Init(&NVIC_InitStructure);    
}    
/******************************************************************************/    
/*            STM32F10x Peripherals Interrupt Handlers                        */    
/******************************************************************************/    
    
/**  
  * @brief  This function handles External lines 9 to 5 interrupt request.  
  * @param  None  
  * @retval None  
  */    
void EXTI9_5_IRQHandler(void)    
{    
    if(EXTI_GetITStatus(EXTI_Line8) != RESET)    
  {    
    /* Toggle LED1 */    
     GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1);    
printf("S1 interrupt ......\r\n");    
    /* Clear the  EXTI line 0 pending bit */    
    EXTI_ClearITPendingBit(EXTI_Line8);    
        }    
    if(EXTI_GetITStatus(EXTI_Line9) != RESET)    
        {    
     GPIO_SetBits(GPIOC,GPIO_Pin_2|GPIO_Pin_3);    
printf("S2 interrupt ......\r\n");    
    /* Clear the  EXTI line 0 pending bit */    
    EXTI_ClearITPendingBit(EXTI_Line9);    
    }    
      
}    
void EXTI15_10_IRQHandler(void)    
{    
  if(EXTI_GetITStatus(EXTI_Line10) != RESET)    
  {    
    /* Toggle LED2 */    
     GPIO_SetBits(GPIOC,GPIO_Pin_4|GPIO_Pin_5);    
printf("S3 interrupt ......\r\n");    
    /* Clear the  EXTI line 9 pending bit */    
    EXTI_ClearITPendingBit(EXTI_Line10);    
  }    
    if(EXTI_GetITStatus(EXTI_Line11) != RESET)    
  {    
    /* Toggle LED2 */    
     GPIO_SetBits(GPIOC,GPIO_Pin_6|GPIO_Pin_7);    
printf("S4 interrupt ......\r\n");    
    /* Clear the  EXTI line 9 pending bit */    
    EXTI_ClearITPendingBit(EXTI_Line11);    
  }    
}    
    
    
#ifdef  USE_FULL_ASSERT    
    
/**  
  * @brief  Reports the name of the source file and the source line number  
  *         where the assert_param error has occurred.  
  * @param  file: pointer to the source file name  
  * @param  line: assert_param error line source number  
  * @retval None  
  */    

/*定时器中断

/**
  ******************************************************************************
  * @file    EXTI/EXTI_Config/main.c 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * 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 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */ 


/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
#include <stdio.h>
/** @addtogroup STM32F10x_StdPeriph_Examples
  * @{
  */


/** @addtogroup EXTI_Config
  * @{
  */ 


/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
EXTI_InitTypeDef   EXTI_InitStructure;
GPIO_InitTypeDef   GPIO_InitStructure;
NVIC_InitTypeDef   NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;
long flag;
void RCC_Configuration(void)
{/*
  RCC_DeInit();
    
  RCC_HSICmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
  
  RCC_HSEConfig(RCC_HSE_OFF);
  RCC_LSEConfig(RCC_LSE_OFF);
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz
  RCC_PLLCmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);
*/
SystemInit();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_ResetBits(GPIOD,GPIO_Pin_2);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
 RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
}


void USART_int(long BaudRate)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = BaudRate;//??????
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//????1
  USART_InitStructure.USART_Parity = USART_Parity_No;//????
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????none
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//??????????
USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;     
    USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      
    USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;      
    USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
    USART_ClockInit(USART1, &USART_ClockInitStructure);
  USART_Init(USART1, &USART_InitStructure);
  USART_Cmd(USART1, ENABLE);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
 USART_Cmd(USART1, ENABLE);
}


void NVIC_Configuration(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;


  /* Enable the TIM2 global Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;


  NVIC_Init(&NVIC_InitStructure);
}


/* Private functions ---------------------------------------------------------*/


/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f10x.c file
     */     
       
  /* System Clocks Configuration */
  RCC_Configuration();


NVIC_Configuration();
USART_int(115200);
printf("config done...\r\n");


  /* Time base configuration */
  TIM_TimeBaseStructure.TIM_Period = 36000;
  TIM_TimeBaseStructure.TIM_Prescaler = 0;
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;


  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE ); 
  
  /* TIM2 enable counter */
  TIM_Cmd(TIM2, ENABLE);


  while (1){
//if(flag == 1)
// {printf("TIM2 interrupt......\r\n");
//flag = 0;
GPIO_ResetBits(GPIOC,GPIO_Pin_1);}
//else{GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);}
//}
}


void TIM2_IRQHandler(void) //TIM3 ??
{
if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) //?? TIM3 ????????
{
TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //?? TIM3 ??????
//flag++;
GPIO_SetBits(GPIOC,GPIO_Pin_1);
}
}




#ifdef  USE_FULL_ASSERT


/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)

  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */


  /* Infinite loop */
  while (1)
  {
  }
}


#endif


/**
  * @}
  */ 


/**
  * @}
  */ 


#ifdef __GNUC__
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
     set to 'Yes') calls __io_putchar() */
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
  




/**
  * @brief  Retargets the C library printf function to the USART.
  * @param  None
  * @retval None
  */
PUTCHAR_PROTOTYPE
{
  /* Place your implementation of fputc here */
  /* e.g. write a character to the USART */
  USART_SendData(EVAL_COM1, (uint8_t) ch);


  /* Loop until the end of transmission */
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
  {}


  return ch;
}


#ifdef  USE_FULL_ASSERT


/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)

  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */


  /* Infinite loop */
  while (1)
  {
  }
}


#endif


/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/



专家
2014-11-27 22:21:22     打赏
2楼
看到注释才知道是stm32的。论坛有专门介绍stm32的板块,有问题可以换和jobs聊聊哦

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