我添加了一个串口写入我的代码，现在它冻结后，几十个迭代。几分钟，它的工作只是它应该。如果我删除串口相关的行，它将永远顺利运行。我使用VisualStudio。有人能发现这个问题吗？

int main() {
    HANDLE hSerial;
    DCB dcbSerialParams = { 0 };
    
    // Open the serial port
    hSerial = CreateFile(L"COM1", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hSerial == INVALID_HANDLE_VALUE) {
        std::cout << "Error opening serial port" << std::endl;
        return 1;
    }

    // Set the serial port parameters
    dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
    if (GetCommState(hSerial, &dcbSerialParams) == 0) {
        std::cout << "Error getting serial port state" << std::endl;
        CloseHandle(hSerial);
        return 1;
    }
    dcbSerialParams.BaudRate = CBR_9600;
    dcbSerialParams.ByteSize = 8;
    dcbSerialParams.StopBits = ONESTOPBIT;
    dcbSerialParams.Parity = NOPARITY;
    if (SetCommState(hSerial, &dcbSerialParams) == 0) {
        std::cout << "Error setting serial port state" << std::endl;
        CloseHandle(hSerial);
        return 1;
    }

    // Send the serial message
    DWORD dwBytesWritten;
    char message[] = "c";
    WriteFile(hSerial, message, sizeof(message) - 1, &dwBytesWritten, NULL);  

    

    while (stop == 0) {
        
        WriteFile(hSerial, "x", sizeof(message) - 1, &dwBytesWritten, NULL);

        int i = 0;
        while (i < 7) {
            i++;
            //some code that works fine without serial port writings
        }
        
        WriteFile(hSerial, "y", sizeof(message) - 1, &dwBytesWritten, NULL);

        i = 0;
        while (i < 7) {
            i++;
            //some code that works fine without serial port writings
        }
    }
    }    
    return 0;
}

我已经尽我所能把代码做得尽可能简单了。但是它仍然有一些严重的问题。