The sender sends data, the receiver readyread no reaction, however, when the receiver send data to the sender will receive data from the sender, after every time the receiver to receive a bit, not hair what not receive, for the first time to write a serial port communication, completely can't find the reason

CodePudding user response:

You'll have to open the serial port, and then set parameters, how do you set on both sides of the parameter is?

CodePudding user response:

Qt should not be so!

CodePudding user response:

cited the 1st floor nanjing brief spring reply:

you'll have to open the serial port, and then set parameters, how do you set on both sides of the parameter is?

Found the reason, the problem of serial debugger, changed a serial debugger

CodePudding user response:

sometimes hardware has a problem

CodePudding user response:

The building Lord, I also encountered the same problems, win10 system, you is how to solve?

CodePudding user response:

Version of the Qt 5.13.1 QSerialPort does not produce readyRead signal, this is a BUG, Qt 5.12.5 have the same problem
Qt 5.13.2 have changed this BUG,

CodePudding user response:

Using Qt 5.13.1 version, and master the same problems, see above version of the bug, try next new version now