Folks, Not sure this is quite the right place for this question, but here goes:
I am writing data out to a VCP using qextserialport and all works fine in terms of getting the data to and fro the PC. One thing I do want to do though, is check when the last byte of data has actually been sent. ie The output buffer of the UART IC itself is empty. Reason I want to do this is that once all the data has gone, I need to immediately set the RTS line low, so my little RS485 adapter is put into receive mode. I thought that maybe waitForBytesWritten(int msec) would do the trick (and maybe it does), but I can't get it to work. I've tried vcp->writeData(&c[0],10); while (vcp->waitForBytesWritten(x) == false); vcp->setRts(false); where x is various values, including -1, but it just jumps out and the RTS line gets set low too early, the data thus not getting sent out. Anyone know whether what I want to do is possible?! Many thanks, Rob _______________________________________________ Qt-creator mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-creator
