[Gambas-user] SerialPort: RS232 DTR problem

[Tobias Boege]

On Sun, 04 Jan 2015, Beno?t Minisini wrote:
> Le 03/01/2015 15:40, Tobias Boege a ?crit :
> > On Fri, 02 Jan 2015, Beno?t Minisini wrote:
> >> Le 16/12/2014 15:52, Tobias Boege a ?crit :
> >>> 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?
> >>
> >
> > He says no.
> >
> 
> A stupid bug in the DTR property implementation... It should be fixed in 
> revision #6804. Please ask him to confirm.
> 

Confirmed.

-- 
"There's an old saying: Don't change anything... ever!" -- Mr. Monk