How to send data other than string through serial
-
Hi everyone,
I am programming in Qt and I would like to send data other than string through the serial port. For example: using the YAT software, it is necessary to use the command \d(number) to send decimal number or \h(number) to send a hexadecimal number. How would be it in Qt? Is there a way of doing it?
Tks in advance, -
Hi everyone,
I am programming in Qt and I would like to send data other than string through the serial port. For example: using the YAT software, it is necessary to use the command \d(number) to send decimal number or \h(number) to send a hexadecimal number. How would be it in Qt? Is there a way of doing it?
Tks in advance,Hi and welcome to devent
Why should this not possible?
You basically give a pointer to writeData() and tell it the number of bytes to send. Either you pack your binary number into a binary stream and send off this, or you can send also directly.int i = 15; serial->writeData (&i, sizeof (int) );Probably you have to cast the pointer.
-
Thanks for your help!
I have implemented the mentioned code, but it still not working. The following message is given:
" error: no matching function for call to 'QSerialPort::write(int*, unsigned int)'
serial->write(&i, sizeof(8));"int i = 15; serial->writeData ( (char *) &i, sizeof (int) );That is what I meant with "Probably you have to cast the pointer."
You might want tohave also a look on to QDataStream . There you can store several values in teh buffer and send all at once.