windows的Timer和写文件方式串口注意!

1、Timer要读取并分发消息,才能触发自定义回调函数

SetTimer(NULL, 1, 40, (TIMERPROC)TimerProc);

while(GetMessage(&msg, NULL, 0, 0))
{
  if (msg.message == WM_TIMER)
  {
    DispatchMessage(&msg);
  }
}

void CALLBACK TimerProc()

2、串口错误CODE:998时,必须注意缓冲区,尽量开大点

原文地址:https://www.cnblogs.com/rongfangliu/p/5252242.html