[Gambas-user] SerialPort: RS232 DTR problem

[Benoît Minisini]

Le 16/12/2014 15:52, Tobias Boege a écrit :
> Hi,
>
> [ this is a forwarded bug report -- and this time I'm only translating. I
>    don't understand any of these hardware things. If there are questions
>    left, don't hesitate; ]
>
> a user complains that SerialPort.DTR is buggy on his system: after
> initialisation, this property is False and the voltage is -12V.
>
> Setting it to True works and the voltage raises to +12V. But setting it to
> False afterwards does nothing: the property continues to return True the
> voltage remains on +12V. The needed hardware is an RS232 or an RS232-USB
> adapter.
>
> He says it worked with Gambas2 and he first noticed that it didn't with
> Gambas 3.1.1 (from the Ubuntu repositories). I urged him to update and the
> error still happens with 3.6.2.
>
> Attached is the project we came up with to reproduce the issue. He also
> mentioned that behaviour changed slightly when he left out the graphical
> component he initially used his project with: with a graphical component,
> the hardware didn't react and the property remained True and without a
> graphical component, the hardware reacts correctly, only the property gives
> the wrong value -- if I got him right.
>
> Regards,
> Tobi
>

Does the last revision (#6792) change anything?

-- 
Benoît Minisini