串口发送数组出错

王太晓 · 发表于 2016-8-9 11:47:27

我将接收到的数据存入数组中，存满了就返回数组的全部值，但是返回的值不对，比如我发送00 11 10  01 00 11 10 01这8组数，完了应该全部返回，但是返回的数据不对，

unsigned       char    a_RxBuf[8];
unsigned       char    usRxWrite=0;
unsigned       char    Rxcount=0;
unsigned       char    Rxsize=8;

void InitUart(void)
{
  USART1_Config();
}
void USART1_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);


USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);

USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);/* 使能接收中断 */
USART_Cmd(USART1, ENABLE);
USART_ClearFlag(USART1, USART_FLAG_TC);

NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

void USART1_IRQHandler(void)
{
/* 处理接收中断  */
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{

USART_ClearITPendingBit(USART1,USART_IT_RXNE);
   a_RxBuf[usRxWrite++]=USART_ReceiveData(USART1);

   if(usRxWrite==Rxsize)
   {

   for(Rxcount=0;Rxcount<Rxsize;Rxcount++)
   {
      USART_SendData(USART1, a_RxBuf[Rxcount]);
   }
   usRxWrite=0;
   Rxcount=0;
   }
      USART_ClearFlag(USART1,USART_FLAG_TC);
   }
}

这个是数据已经存入到数组里边，而且FOR函数也正确运行，也已经发送了，但是不知道数据发送到哪里去了