bool UartT::Open()
{
  if(!OpenFlag)
  {
    TxCounter  = TxRdIndex = 0;
    TxStopped  = 0;
    TxComplete = 1;
    RxRdIndex  = 0;
    
    USART_DeInit(UART);
    
    {
      USART_InitTypeDef  UART_InitStructure;
      
      UART_InitStructure.USART_BaudRate   = UartLineCoding.dwDTERate;
      UART_InitStructure.USART_WordLength = USART_WordLength_8b;
      UART_InitStructure.USART_StopBits   = USART_StopBits_1;
      UART_InitStructure.USART_Parity     = USART_Parity_No;
      UART_InitStructure.USART_Mode       = USART_Mode_Rx|USART_Mode_Tx;
      UART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        
      USART_Init(UART,&UART_InitStructure);
      
      USART_ClearFlag(UART, USART_FLAG_CTS | USART_FLAG_LBD  |
                               USART_FLAG_TC  | USART_FLAG_RXNE );
    }
    
    {
      DMA_InitTypeDef DMA_InitStruct;
      
      DMA_DeInit(RxDMA_Channel);
      
      DMA_InitStruct.DMA_PeripheralBaseAddr = (U32)&UART->DR;
      DMA_InitStruct.DMA_MemoryBaseAddr     = (U32)&RxBuffer[0];
      DMA_InitStruct.DMA_DIR                = DMA_DIR_PeripheralSRC;  
      DMA_InitStruct.DMA_BufferSize         = RX_BUFFER_SIZE;
      DMA_InitStruct.DMA_PeripheralInc      = DMA_PeripheralInc_Disable;
      DMA_InitStruct.DMA_MemoryInc          = DMA_MemoryInc_Enable;
      DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
      DMA_InitStruct.DMA_MemoryDataSize     = DMA_MemoryDataSize_Byte;
      DMA_InitStruct.DMA_Mode               = DMA_Mode_Circular;
      DMA_InitStruct.DMA_Priority           = DMA_Priority_Low;
      DMA_InitStruct.DMA_M2M                = DMA_M2M_Disable;
      
      DMA_Init(RxDMA_Channel, &DMA_InitStruct);
      DMA_Cmd(RxDMA_Channel, ENABLE);
      
      DMA_DeInit(TxDMA_Channel);
      
      DMA_InitStruct.DMA_PeripheralBaseAddr = (U32)&UART->DR;
      DMA_InitStruct.DMA_MemoryBaseAddr     = (U32)&TxTmpBuffer[0];
      DMA_InitStruct.DMA_DIR                = DMA_DIR_PeripheralDST;  
      DMA_InitStruct.DMA_BufferSize         = 16;
      DMA_InitStruct.DMA_PeripheralInc      = DMA_PeripheralInc_Disable;
      DMA_InitStruct.DMA_MemoryInc          = DMA_MemoryInc_Enable;
      DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
      DMA_InitStruct.DMA_MemoryDataSize     = DMA_MemoryDataSize_Byte;
      DMA_InitStruct.DMA_Mode               = DMA_Mode_Normal;
      DMA_InitStruct.DMA_Priority           = DMA_Priority_Low;
      DMA_InitStruct.DMA_M2M                = DMA_M2M_Disable;
      
      DMA_Init(TxDMA_Channel, &DMA_InitStruct);
      DMA_ITConfig(TxDMA_Channel, DMA_IT_TC, ENABLE);
      OpenFlag = true;
    }
  

    // Enable UART
    USART_DMACmd(UART, USART_DMAReq_Rx|USART_DMAReq_Tx, ENABLE);  
    USART_Cmd(UART, ENABLE);
  
  }
  return true;
}


bool GSM_UartT::Open()
{
    UART = USART3;
    TxDMA_Channel = DMA1_Channel2;
    RxDMA_Channel = DMA1_Channel3;
    
    if(OpenFlag)return true;
    
    portENTER_CRITICAL();
    
    Config(&GsmLineCoding);
    
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
    RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, ENABLE);
    RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, DISABLE);
    
    GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);

    {
      GPIO_InitTypeDef GPIO_InitStructure;
      // Assign PC10 to UART4 (Tx)
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
      GPIO_Init(GPIOC, &GPIO_InitStructure);

      // Assign PC11 to UART4 (Rx)
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
      GPIO_Init(GPIOC, &GPIO_InitStructure);
    }
    // Init UART4
    
    UartT::Open();
    
    {
      NVIC_InitTypeDef NVIC_InitStructure;
      
      NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel2_IRQn;
      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = configMAX_SYSCALL_INTERRUPT_PRIORITY;
      NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
      NVIC_Init(&NVIC_InitStructure);
    }
    portEXIT_CRITICAL(); //ПРОВЕРЯЛ В ЭТОЙ ТОЧКЕ.
    return true;
}