希望大家都好。我遇到了一个奇怪的麻烦，而试图使与RPi-Pico -〉PC串行通信。从Pico我发送9字节包（来自ADC + \n的8字节数据）通过USB总线的串行通信，一秒一次。当从Windows阅读时，我的程序在第一手什么也没读到，只停留在if (!WaitCommEvent(hComm, &dwEventMask, NULL))阶段。但如果我运行putty与任何配置，然后数据显示在putty。关闭putty后，如果我运行我的程序，令人惊讶的是，它也阅读数据没有任何失败！！！！再次重新启动皮科后，同样的情况又回来了。到目前为止，这对我来说是一个非常未知的功能。你们中的任何人可以帮助我解决这个问题吗？我正在发送代码片段进行分析。提前感谢你。祝你有一个伟大的一天/晚上！

hComm = CreateFileA(commPortName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
        if (hComm == INVALID_HANDLE_VALUE)
            cout << "\nError Port " << commPortName << " can't be opened!!!\n";
        else
            cout << "\nPort " << commPortName << " is opened!!\n";
        dcbParams.DCBlength = sizeof(dcbParams);
        if (!GetCommState(hComm, &dcbParams))
            cout << "\nError in GetCommState()\n";
        dcbParams.BaudRate = CBR_115200; dcbParams.ByteSize = 8; 
        dcbParams.StopBits = ONESTOPBIT; dcbParams.Parity = NOPARITY;
        if (!SetCommState(hComm, &dcbParams))
            cout << "\nError in setting Device-Control Block(DCB)\n";
        else
        {
            cout << "\n\n    Setting DCB Structure Successfull" 
                << "\n       Baudrate --> " << dcbParams.BaudRate 
                << "\n       ByteSize --> " << (unsigned int)dcbParams.ByteSize 
                << "\n       StopBits --> " << (unsigned int)dcbParams.StopBits 
                << "\n       Parity   --> " << (unsigned int)dcbParams.Parity;
        }
        timeouts.ReadIntervalTimeout = 50;
        timeouts.ReadTotalTimeoutConstant = 50;
        timeouts.ReadTotalTimeoutMultiplier = 10;
        if (!SetCommTimeouts(hComm, &timeouts))
            cout << "\n\n    Error! in Setting Time Outs\n";
        else
            cout << "\n\n    Setting Serial Port Timeouts Successfull\n";
        if (!SetCommMask(hComm, EV_RXCHAR))
            cout << "\n\n    Error! in Setting Communication Mask\n";
        else
            cout << "\n\n    Setting Communication Mask successfull\n";
        cout << "\n\n    Waiting for Data Reception....\n";
        for (int i = 0; i <= 99; i+=1)
        {
            if (!WaitCommEvent(hComm, &dwEventMask, NULL))
                cout << "\n    Error! in Setting Wait for Communication Event...!\n";
            else
            {
                ReadFile(hComm, &readBuffer, sizeof(readBuffer), &noBytesRead, NULL);
                cout << "           " << readBuffer;
            }
        }
        CloseHandle(hComm);