Linux环境下2410开发板串口读写关键代码(2)

void *thread1(void *)
{ 
  //线程 1
  while(1)
  {
  rbuf[0]='\0';
  /*超时太长,会丢失数据包,如果连续*/
  rc=readport(fd,rbuf,5,50);   //读取5个字节，超时时间为100,500毫秒
  if(rc!=-1)
  {
   rbuf[5]='\0';
   //writeport(fd,wbuf,rc);
   writeport(fd,rbuf,rc); //把收到的数据 发回
   printf("Rev id:%s\n",rbuf);
  }
  //else
  //{
  //  printf("Lost recv:%d\t Lost Text:%s\n",rc,rbuf);
  //  writeport(fd,wbuf,rc);
  //}
 
 }
 
 close(fd);  //关闭串口
 pthread_exit(0);
}

void *thread2(void *)
{
    QPEApplication a( argc, argv );
    HelloForm f(0,"yunfly",Qt::WStyle_Customize|Qt::WStyle_NoBorder);

a.showMainWidget( &f );
    //int result=a.exec();
    a.exec();
    pthread_exit(0);
}

int main( int a_rgc, char *a_rgv[] )
{
  argc=a_rgc;
  argv=a_rgv;
/********************初始化串口*************************/
// for(ii=0;ii<256;ii++)wbuf[ii]=ii;
 fd=openport(dev);     //打开串口
 if(fd>0){
  ret=setport(fd,115200,8,1,'N');  //设置串口，波特率，数据位，停止位，校验
  if(ret<0){
   printf("Can't Set Serial Port!\n");
   exit(0);
  }
 }
 else
 {
  printf("Can't Open Serial Port!\n");
  exit(0);
 }
/*****************************************************/ 
 
    pthread_t id1,id2;
    int ret;
    /*Create Thread 1: RS232 Serial */
    ret=pthread_create(&id1,NULL,thread1,NULL);
    if(ret!=0){
       printf("Create pthread error!\n");
       exit(1);
    }
    /*Create Thread 2:QT Window*/
    ret=pthread_create(&id2,NULL,thread2,NULL);
    if(ret!=0){
       printf("Create pthread error!\n");
       exit(1);
    }
  
    pthread_join(id1,NULL);
    pthread_join(id2,NULL);
    exit(0);
}