[visionegg] Re: PsyScope button box
- From: Andrew Straw <astraw@xxxxxxxxxxx>
- To: visionegg@xxxxxxxxxxxxx
- Date: Wed, 21 Feb 2007 09:57:30 -0800
Dear John,
Without knowing more about this product or where they are in the
development process, I would suggest they, as a first step, write a
simple C API and keep it cross-platform. libusb can be used to write the
USB drivers for the device. Once you've got a C library, it is
relatively straightforward to wrap it with a Python module (using
ctypes, for example) or, to a lesser degree, MATLAB mex file. At that
point, I think they would be well served by spending a little effort
integrating their drivers for use with the various experiment-running
software packages. I would gladly accept any patches into the Vision Egg
or demos that use the box, provided they don't break anything else.
I've personally been building little microcontroller devices based on
the Atmel AT90USBKEY. Once you overcome the initial development hurdles,
its quite a capable little platform for $30 with no associated
additional fees like much embedded development entails (gcc can be used
as the compiler).
-Andrew
John Christie wrote:
Hi,
I was recently in conversation with the makers of the PsyScopeX
button box about having more open drivers and not having it tied so
closely to PsyScopeX. They are working on exactly that and are
considering where to put their resources for high level support. They
originally were going to go MatLab next but were very open to the ides
of a Python module (especially because the believed it to be easier).
Anyone who'd like to see this device supported under Python please
contact them and let them know. I know it isn't cheap but getting
supported and cheap USB I/O devices is really hard, especially for Mac
users. Can anyone get an email back from Activewire? Delcom? It
seems they're all a little flakey.
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