uint32_t SerialKeyPressed(uint8_t *key)
{

  if ( USART_GetFlagStatus(EVAL_COM3, USART_FLAG_RXNE) != RESET)
  {
    *key = (uint8_t)EVAL_COM3->DR;
    return 1;
  }
  else
  {
    return 0;
  }
}

oid BT_USART_Init(void)
{
  USART_InitTypeDef USART_InitStructure;
      NVIC_InitTypeDef  NVIC_InitStructure;

RCC->APB1ENR |= RCC_APB1ENR_USART3EN;
    
    /* Enable Clock and clock For REMAP - RCC_APB2Periph_AFIO                                             */

                     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE); // Alternate Function

                 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);

    
    
    /* Configure USART Tx as alternate function push-pull */
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  /* Configure USART Rx as input floating */
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  /* USART resources configuration (Clock, GPIO pins and USART registers) ----*/
  /* USART 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 = 38400;
  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(USART3, &USART_InitStructure);  
    USART_Cmd(USART3, ENABLE);
    
            //       NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
           //     NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
             //     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
             //     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
             //
          //        USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);  /* Enable Receive interrupt */

}

FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG)
{
  FlagStatus bitstatus = RESET;
  /* Check the parameters */
  assert_param(IS_USART_ALL_PERIPH(USARTx));
  assert_param(IS_USART_FLAG(USART_FLAG));
  /* The CTS flag is not available for UART4 and UART5 */
  if (USART_FLAG == USART_FLAG_CTS)
  {
    assert_param(IS_USART_123_PERIPH(USARTx));
  }  
  
  [b]if ((USARTx->SR & USART_FLAG) != (uint16_t)RESET)
  {
    bitstatus = SET;
  }[/b]
  else
  {
    bitstatus = RESET;
  }
  return bitstatus;
}