stm32 串口发送多字节数据(结构体版本)

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typedef struct shuju
{
  u8 sj0;   //帧头
  u8 sj1;
  u8 sj2;
  u8 sj3;
  u8 sj4;
  u8 sj5;
  u8 sj6;
  u8 sj7;
  u8 sj8;
  u8 sj9;    //帧尾
}shuju;

//实际使用
shuju shuju_1;

void shujucunchu(shuju *shuju_1)
{
  shuju_1->sj0 = 0xAA;  //帧头数据
  shuju_1->sj1 = 0xFD;
  shuju_1->sj2 = 0x02;
  shuju_1->sj3 = 0x00;
  shuju_1->sj4 = 0xDF;
  shuju_1->sj5 = 0xA5;
  shuju_1->sj6 = 0xA6;
  shuju_1->sj7 = 0xA7;
  shuju_1->sj8 = 0XA8;
  shuju_1->sj9 = 0xBB;  //帧尾数据
}

void send_data_(shuju*shuju_1,u8 len)
{
  static u8 date=0,i=0;
  for(i=0;i<len;i++) //使用sizeof计算结构体
  {
    date = *(((u8 *)&shuju_1->sj0)+i); //从帧头开始 然后依次向下指向
    USART_SendData(USARTx,date); //发送一个字节
    while(USART_GetFlagStatus(USARTx,USART_FLAG_TC)!= SET);
  }
}

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//主函数调用
shujucunchu(&shuju_1); //赋值
printf("sizeof:%drn",sizeof(shuju_1)); //sizeof:10
send_data_(&shuju_1,sizeof(shuju_1)); //发送一帧数据