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i want to send and receive signals on my ISA port, but the functions INPORT & OUTPORT give me some jitter, how can i improve this task?

i want to send and receive signals on my ISA port, but the functions INPORT & OUTPORT give me some jitter, how can i improve this task?

‎02-12-2002 05:09 PM

i don't know if a external code is useful, and i don't know if Windows causes interference with the vi,
thanks
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Re: i want to send and receive signals on my ISA port, but the functions INPORT & OUTPORT give me some jitter, how can i improve this task?

‎02-13-2002 07:31 AM

Hi Tomasino,

You answered your own question, "Windows...."!

Search this site for discusions re:determinism.

Rt will give you determinism.

Ben
Retired Senior Automation Systems Architect with Data Science Automation LabVIEW Champion Knight of NI and Prepper LinkedIn Profile YouTube Channel
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Re: i want to send and receive signals on my ISA port, but the functions INPORT & OUTPORT give me some jitter, how can i improve this task?

‎02-13-2002 09:18 PM

hi ben, yes is true but how works the NI hardware?, they must be have the same trouble, thanks
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Re: i want to send and receive signals on my ISA port, but the functions INPORT & OUTPORT give me some jitter, how can i improve this task?

‎02-14-2002 09:10 AM

Hi Tomasino,

Their hardware provides the timing required and issues interupts. The interupt service routines do the required work.

Ben
Retired Senior Automation Systems Architect with Data Science Automation LabVIEW Champion Knight of NI and Prepper LinkedIn Profile YouTube Channel
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