[erlang-questions] Erlang for a measurement system?

Pablo Platt <>
Mon Nov 24 22:47:39 CET 2008


That's exactly what I'm trying to do.
I've found linux-gpib but it seems that all the logic is in the c files 
http://linux-gpib.sourceforge.net/
and I'm not sure I can take advantage of erlang goodies.
I'll appreciate if anyone could give me a simple c interface for VISA/GPIB 
and a corresponding erlang code or any advice.
 
Thanks




________________________________
From: Matthias Lang <>
To: Pablo Platt <>
Cc: 
Sent: Monday, November 24, 2008 11:30:24 PM
Subject: Re: [erlang-questions] Erlang for a measurement system?

On Monday, November 24, Pablo Platt wrote:

> Is it possible to communicate directly with hardware without using c code?

No.

> I understand that on linux hardware is a file so is it possible to 
> talk with the hardware with io erlang functions?

Some, but far from all, hardware on linux is a file. Even the ones that
are, e.g. serial ports, can't be controlled directly from Erlang because
Erlang won't let you open non-regular files. And for other reasons.

Most of the Erlang code I write controls proprietary hardware. It always
does that through C code. The trick is to keep the C code simple and
put the complexity up in Erlang.

Matt



      
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