Operations are scheduled and performed when the control returns to Qts event loop. (Thread modified from QSerialPort BlockingMaster example. The asynchronous (non-blocking) approach. If device is desired type ("Light"), then we format the device ID to the intended QByteArray message structure. QObject::connect(&thread, SIGNAL(timeout(QString)),įunction used to iterate through QList of devices. QObject::connect(&thread, SIGNAL(error(QString)), Setup signal-slot connections: QObject::connect(&thread, SIGNAL(sendResponse(QByteArray)), I have tried many different examples and configurations, currently I am using the following: Now, my problem – I must not have my function setup properly to send and then receive the response bytes. If off, the modem would send back 0x00 in the last byte position if the device was off.
The returned message indicates exactly what I would expect, that the device is on. The QSerialPort class can also be used with QTextStream and QDataStream s stream operators (operator<< () and operator> ()).Using Docklight, I receive the response: 02 62 1D E9 4B 05 19 00 06 02 50 20 CB CF 1E DA F7 21 00 FF I send the following message to query the state of the device: 02 62 1D E9 4B 05 19 00 I have tested my message using DockLight ( ). When I send messages to my INSTEON modem (serial), upon reading my message the device sends back a copy of my message + 0x06 (ACK Byte) followed by a status message. It provides an easy-to-use and efficient environment for reading, writing and verifying device memory through both the debug interface (JTAG and SWD) and. I am using the QSerialPort ( ) module to instantiate device IO support. I am sending (writing) bytes to a device via my serial port. QSerialPort supports two general programming approaches: The asynchronous (non-blocking) approach.
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