Lpt3 port address running errors

[Ryan Whitfield]

If anybody is running into this issue, E-Prime 2.0 sp1 allows you to reference the parallel port by the LPT value, rather than having to reference the hex address. The use of the hex address presented some problems with dynamically assigned values in older versions, as well as hex values that were greater than an integer (32768). I recommend upgrading the sp1 and using task events for port communication whenever possible.

Ryan Whitfield

> On Apr 22, 2014, at 3:57 PM, ben robinson <baltimore.ben at gmail.com> wrote:
> 
> I wound up having to use an old computer in order to send signals via parallel port, as new parallel ports use dynamically assigned port addresses, and as far as I could determine there is no way to determine the specific address that will be used at any given time. I realize how far fetched that sounds, but that was the best information I could gather.
> 
> ben
> 
> 
>> On Tue, Apr 22, 2014 at 3:31 PM, <neuro.utsc at gmail.com> wrote:
>> Hello,
>> 
>> I apologize ahead of time - a lot of this technical information and jargon is new to me, which may be obvious in my question. I am using a dual port setup in order to send feedback-locked triggers to an EEG acquisition computer. The original task that we're using was programmed on a lab computer that had the common Lpt1 port address (&H378). We're now trying to run the task on a new computer that has an Lpt3 port address (listed as E010-E017). I've tried to run this using the different methods, using hexidecimal/decimal variations and combinations, but nothing seems to be working.
>> 
>> Has anyone ever come across a similar situation? Any helpful tips or advice would be much appreciated.
>> 
>> Cheers, 
>> 
>> Nick
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