这两天在写串口通讯，首先进行的是单字节的数据发送，以下是我的函数：
void Usart_GPIO_Config() { GPIO_InitTypeDef  GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;   //0x01 // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; //0x02 GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_Init(GPIOB, &GPIO_InitStructure); }


void Usart_InitConfig() { USART_ClockInitTypeDef  USART_ClockInitStructure; USART_InitTypeDef USART_InitStructure; 
Usart_GPIO_Config();
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;  /* Configure the USART3 synchronous paramters */ USART_ClockInit(USART3, &USART_ClockInitStructure);
USART_InitStructure.USART_BaudRate = 9600; 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; /* Configure USART3 basic and asynchronous paramters */ USART_Init(USART3, &USART_InitStructure);        /* Enable USART3 */ USART_Cmd(USART3, ENABLE); }

void Usart() { Usart_RCC_Config();
Usart_InitConfig();
while(1) { USART_SendData(USART3,0x0062); while(USART_GetFlagStatus(USART3, USART_FLAG_TXE) == RESET);
while(USART_GetFlagStatus(USART3, USART_FLAG_RXNE) == RESET)  DataToRead =  USART_ReceiveData(USART3); } }


上面是GPIO口和串口设置，但是程序调试串口没有数据发送出来，一直在发送中等待，请教各位帮忙看看代码，是不是我的串口配置有问题？