为什么我收到一些从SerialPort收到的空数据？
我使用以下命令行从传感器中提取数据：
QObject::connect(this->serialPort,SIGNAL(readyRead()),this,SLOT(pollSerialPort()));
QObject::connect(serialPort, &::QSerialPort::errorOccurred,this,&Imu::handleError);
QByteArray hexData = d.append(serialPort->readAll().toHex());
qDebug() << "Serial received " << hexData;
时，我不会收到数据，
但是，每当我收到很多空的消息
例如接收到“ 55555541321E7FF33029F61DA000000000000FFFFFFFFFFFFFFFAFFAFFAFFA2FFA0CBE24B124B124B124B124B124B124B1007B1007B1007B13D000000000 FERTIES MESTILS
”
MSERTING THINEMES命令 但是它不起作用
qObject :: connect（this-＆gt; serialport，＆amp; qSerialport :: readyread，this，this {qtimer :: singleshot（5，this，＆amp; imu :: pollserialport;}）; 请有什么解决方案吗？
I extracted the data from my sensor using these command lines:
QObject::connect(this->serialPort,SIGNAL(readyRead()),this,SLOT(pollSerialPort()));
QObject::connect(serialPort, &::QSerialPort::errorOccurred,this,&Imu::handleError);
QByteArray hexData = d.append(serialPort->readAll().toHex());
qDebug() << "Serial received " << hexData;
however, I do not receive the data every time
I have a lot of empty messages like this
Serial received "555541321e7ff3029f61da00000000ffff00d2fffa0cbe24b124b124b1007b13d00000f4d8"
Serial received ""
I used this command to receive the data every ms but it doesn't work
QObject::connect(this->serialPort, &QSerialPort::readyRead, this, this {QTimer::singleShot(5,this,&Imu::pollSerialPort);});
Any solution please ?
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与其在计时器上进行轮询，不如将QSerialPort :: ReadyRead连接到一个插槽，并且在插槽内使用QSerialPort :: ReadAll（），直到qSerialport :: bytesavailable（）为0。
Instead of polling on a timer, connect QSerialPort::readyRead to a slot and inside the slot use QSerialPort::readAll() until QSerialPort::bytesAvailable() is 0.