USB port TMS

[Annchen Knodt]

Hi everyone,

I've been referring to this older post for help getting E-prime to send 
output signals to a USB device: MCC USB-1208FS.  Since Eprime doesn't have 
any native functionality for communicating with a USB I'd like to try using 
the DLL the comes with the device's "Universal Library" installation as 
David suggests below.  However, I can't find any instructions for working 
with Eprime anywhere in the UL documentation (and the rep I chatted with at 
MCC help had never heard of Eprime), so I'm hoping that someone might be 
able to clarify two things for me:

1) Which MCC DLL file to I link to in Eprime? (and what is the syntax of 
the Declare statement?)  The MCC rep said I should use cbw64.dll, but I'm 
not sure if he's right since he didn't really know what I was talking about
2) What inline commands then do I use in Eprime to send the signal to the 
USB?  We had previously used WritePort with a different device that's been 
replaced with this USB

Thanks!

Annchen Knodt


On Monday, May 31, 2010 6:20:18 PM UTC-4, David McFarlane wrote:
>
> Sara,
>
> Come to think of it, there is a way to send & receive data through USB 
> using E-Prime, in fact I am doing that for a project now.  First go to 
> Measurement Computing (referred to earlier) and get whatever I/O board 
> suits your fancy, e.g., their USB-1024 ($100).  When that arrives, 
> install the Universal Libray software that comes with it.  Then add the 
> appropriate Declare statements in the User Script area of your EP 
> program (see instructions that come with the MCC UL).  Now you can use 
> MCC UL function calls from EP inline code to send & receive data through 
> the USB port.
>
> Recognizing that the MCC UL essentially just adds a DLL to provide the 
> USB support, with enough ingenuity you could take this even further by 
> writing your own DLL to use from EP.  For that, you might want to take a 
> look at "USB Complete" by Jan Axelson.
>
> Mind you, I am not advising you do any of this.  Just being an academic 
> and pointing out the full range of possibilities.
>
> -- David McFarlane, Professional Faultfinder
>
>
> David McFarlane wrote:
> > Sara,
> > 
> > Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
> > really does like to take any and all questions at 
> > http://support.pstnet.com/e%2Dprime/support/login.asp , and they strive 
> > to respond to all requests in 24-48 hours -- this is pretty much their 
> > substitute for proper documentation, so make full use of it.  3) If you 
> > do get an answer from PST Web Support, please extend the courtesy of 
> > posting their reply back here for the sake of others.
> > 
> > That said, here is my take ...
> > 
> > Unless PST has added something new to the latest release of EP2, E-Prime 
> > simply has no facility for sending or receiving data through a USB port, 
> > so you are just out of luck there.  But do not take my word for this, 
> > please contact PST Web Support yourself and then report back here.
> > 
> > Say, why not just install another parallel port?  Or, does your other 
> > device need all 8 outputs from the parallel port?  If not, why not just 
> > build a cable to send different wires to your different devices?  Just 
> > take a look at the book "Parallel Port Complete" by Jan Axelson to get 
> > some idea of how to make full use of the parallel port.  Or, skip the 
> > parallel port and just install a real digital I/O card (e.g., from 
> > http://www.mccdaq.com ).
> > 
> > -- David McFarlane, Professional Faultfinder
> > 
> > 
> >> does anyone knows the scropt to open the USB port in order to trigger
> >> a TMS?
> >>
> >> please, let me know
> >> I have to send a trigger though the USB port, because the parallel
> >> port is used to trigger another device.
> >>
> >> thank you very much
> >> Sara
>
>

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