STM32串口1发送，串口2接收

/**

  ******************************************************************************

  * @file    Project/STM32F10x_StdPeriph_Template/stm32f10x_it.c 

  * @author  MCD Application Team

  * @version V3.5.0

  * @date    08-April-2011

  * @brief   Main Interrupt Service Routines.

  *          This file provides template for all exceptions handler and 

  *          peripherals interrupt service routine.

  ******************************************************************************

  * @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.

  *

  *

© COPYRIGHT 2011 STMicroelectronics

  ******************************************************************************

  */

/* Includes ------------------------------------------------------------------*/

#include "stm32f10x_it.h"

/** @addtogroup STM32F10x_StdPeriph_Template

  * @{

  */

/* 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)

{

}

/**

  * @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)

{

}

/********************me**************/

void USART1_IRQHandler(void)

{

 //static u8 k;

 USART_ClearFlag(USART1,USART_FLAG_TC);//清除USARTx的待处理标志位

  if(USART_GetITStatus(USART1,USART_IT_RXNE)!=Bit_RESET)

 {

  USART_ReceiveData(USART1);

  USART_SendData(USART2,USART_ReceiveData(USART1));

  while(USART_GetFlagStatus(USART1,USART_IT_RXNE)!=RESET);

 }

}

void USART2_IRQHandler(void)

{

 //static u8 j;

 USART_ClearFlag(USART2,USART_FLAG_TC);//清除USARTx的待处理标志位

  if(USART_GetITStatus(USART2,USART_IT_RXNE)!=Bit_RESET)

 {

  USART_ReceiveData(USART2);

  USART_SendData(USART2, USART_ReceiveData(USART2));

  //led_display();                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  while(USART_GetFlagStatus(USART2,USART_IT_RXNE)!=RESET);

  }

}

/**

  * @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)

{

}

/******************************************************************************/

/*                 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)

{

}*/

/**

  * @}

  */