[Qt-interest] QExtSerialPort Overhead

[Donal]

Thanks very much for the response. Yep understand it is not part of the
standard QT framework, so apologies for bringing it here.

Thanks for the advice, I will take it onboard.

Regards,
Donal

On Thu, Feb 12, 2009 at 4:58 PM, Pascal Patry <iscy at invalidip.com> wrote:

> On February 12, 2009 11:31:09 am Donal wrote:
> > Hi There,
>
> Hi,
>
> > I am wondering if I'll have timing issues further down the line and need
> to
> > know if QExtSerialPort is the way to go.
>
> QextSerialPort is not part of Qt. It is a separate project developed
> developed by
> different people. However its API is based on Qt.
>
> > I will be querying a serial device roughly 6 times a second, processing
> lot
> > of different commands. This will be running in a thread along
> > with a QTimer in another for reading time outs etc.
>
> You should probably think about doing an IO only thread here instead of
> relying on QTimer
> for performance reasons...
>
> > I will be running this on a 200Mhz ARM processor on Embedded Linux. My
> > question is, is QExtSerialPort quick enough to handle such requests
> > while updating a GUI with maybe 6 values obtained each second.
> >
> > If not I may have to go more low level with C.
>
> Yes, QextSerialPort is more than enough for your needs. It will help you
> staying far from
> posix calls, while being cross platform. It is only a wrapper, so it won't
> hurt the
> performance your application.
>
>
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