STM32USART串口单片机发送数据

#include "stm32f10x.h"
   int TXBuf1[4]={0x1234,0x2345,0x3456,0x4567};  //定义需发送的字符串
   int i;
int main(void)
{

    GPIO_InitTypeDef  GPIO_InitStructure;   //声明串口结构，由于串口即GPIO，所以同时声明GPIO
USART_InitTypeDef USART_Initstucture;
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE);  //使能PA端口时钟

  //  USART_StructInit(&USART_Initstucture); //串口结构成员设置
  USART_Initstucture.USART_BaudRate = 9600;
  USART_Initstucture.USART_WordLength = USART_WordLength_8b;
  USART_Initstucture.USART_StopBits = USART_StopBits_1;
  USART_Initstucture.USART_Parity = USART_Parity_No ;
  USART_Initstucture.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
  USART_Initstucture.USART_HardwareFlowControl = USART_HardwareFlowControl_None;

 //  GPIO_StructInit(&GPIO_InitStructure);   //GPIO结构成员设置
        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;
        
        USART_Init(USART1,&USART_Initstucture); //初始化串口
        USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);  //初始化发送中断使能
        USART_ITConfig(USART1,USART_IT_TXE,ENABLE);   //初始化接收中断使能