Itc-18 ttl out

Support
1

We setup mworks and the ITC-18 like described on the mworks webpage… trying to get a TTL OUT measured with an oscilloscope was unsuccessful… changing “pulse_active_high” to “pulse_active_low” does not change our initial readout once the ITC-18 is initiated

we set our system (OS X 10.8.2) to run 32 bit mode

below the simple test script

<?xml version="1.0" standalone="no"?>
2

Hi Athanasia,

I’m out of the office today, so I don’t have an ITC on hand to test your example. But I think if you replace pulse_active_low with digital, you’ll get the behavior you expect. Also, you probably should add another wait after setting TTL0 back to zero, just to make sure the update is sent to the device before you stop I/O.

Regards,
Chris Stawarz

3

Thank you for your e-mail.

Best regards,
Athanasia Palasantza

4

Hello,

We have tried the aux out on the back of the ITC18: out0 and ground (pin 3 and 4) and also
the usb dig I/O: TTL out0 and ground (pin 36 and 35).
We expected to have TTL0 to a high value value (5-10) for 1 sec, but it did not work.
Could you possibly tell us what are we doing wrong?
I have also attached the xml code we are testing.

Best regards,
Athanasia Palasantza

Από: Christopher Stawarz [tender+d452a3758265330195e3be8214a755cc56bcfbf2e@tenderapp.com]
Αποστολή: Δευτέρα, 18 Φεβρουαρίου 2013 5:47 μμ
To: Athanasia Palasantza
Θέμα: Re: ITC-18 TTL OUT [Questions #74]

5

Attachment: ITC_Test.xml (1.59 KB)

6

Hi Athanasia,

I tried your experiment on my setup, and it works as expected, producing an oscillating TTL signal with a period of 2 seconds on auxiliary output pin 0.

What happens if you leave your wires where they are, but change your experiment to use ITC18_TTL_ASYCH_OUT14 or ITC18_TTL_ASYCH_OUT15? If that works, then one of us has our pin numbering backwards.

Also, what version of MWorks are you using?

Chris

7

Thank you very much for your response.
We will try it again with the changes you suggested.
We are using release 0.4.5.

Best regards,
Athanasia

Από: Christopher Stawarz [tender+d452a3758265330195e3be8214a755cc56bcfbf2e@tenderapp.com]
Αποστολή: Δευτέρα, 4 Μαρτίου 2013 7:07 μμ
To: Athanasia Palasantza
Θέμα: Re: ITC-18 TTL OUT [Questions #74]