Re: [Hamlib-developer] VISA for RS232, USB and the like

[Dave <da...@g8...>]

VISA drivers are also a total nightmare, with one vendors code, not 
working well (if at all) with another vendors "VISA" subsystem.

Also, often when you install another VISA libraray to support some 
instrument or application, it fouls up other existing drivers and app's.

Plus, as already been mentioned, it's all "Windows only" anyway.

Avoid VISA for Ham stuff at all costs!

Dave G0WBX


Subject:        	Re: [Hamlib-developer] VISA for RS232, USB and the like

> http://en.wikipedia.org/wiki/Virtual_Instrument_Software_Architecture
> 
> "The VISA library has standardized the presentation of its operations
> over several software reuse mechanisms, including through a C API
> exposed from Windows DLL, visa32.dll and over the Microsoft COM
> technology."
> 
> Very interesting. On the other hand, we might have to create a COM
> object with MSVC and make it call hamlib which is compiled with gcc.
> This is possible but it implies using MSVC, which might be disliked by
> some users.
> 
> Le 15.11.2011 18:32, Jonas Stein a écrit :
> > Hi,
> >
> > many meters have a RS232, USB or similar port.
> > Some people develloped a abstraction layer called visa [1]
> >
> > I think it could be interesting to include the ham stuff there too.
> > The user could use VISA to change the channel on the radio and to
> > ask the amperemeter about the current.
> >
> > I am not familiar with the hamlib code, but thought the idea could
> > be useful for future releases.
> >
> > kind regards,
> >
> > [1]
> > http://en.wikipedia.org/wiki/Instrument_Driver#I.2FO_Hardware_Abstra
> > ction_Layer_VISA
> >
> 
> 
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