Question about frame generation

[petercarpen]

Hello,
I'm currently working with Qextserialport to establish serial communication for a data acquisition system, which requires implementing a specific protocol. I need to create a frame with the following sequence: 0x01, 0x81, and 0x82 (representing the format byte, service ID, and checksum byte). This frame should be transmitted to another computer via RS232 with the click of a button. How can I construct this frame and transmit it in the specified sequence? Additionally, I need to transmit data as well.

[d_stranz]

create a frame with the following sequence: 0x01, 0x81, and 0x82 (representing the format byte, service ID, and checksum byte)

Putting the data into or pulling it out of a QByteArray seems to be the way to do this. QextSerialPort has a readAll() method that replaces the same method from the QIODevice base class. The base class has a QIODevice::write() method that uses a QByteArray argument.

Why aren't you using the built-in QSerialPort class from Qt? It seems to have nearly the same functionality and interface.