Digital waveform generation on E series at 1Mhz

[Ali211]

I want to now that how can we generate digital wave form on E series through finite or contineous sampling. I tested DAQ assistant was producing error on above mentioned sampling options and was working only with on demand sampling?

[GerdW]

Hi Ali,

- Which hardware do you use?

- Have you looked at (and tried) the examples coming with LabVIEW? They generally don't use the DAQ assistent ExpressVI...

[altenbach]

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@Ali211 wrote:
... was producing error ...

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Always tell us exactly what the error message was!

Can you show us exactly what you are actually doing? Maybe attach a small sample VI that shows the problem. What card do you have?

(16 yers ago I was doing AI and AO at 1MHz using a ISA based AT-MIO-16-1 card, so this is certaily possible)

[Ali211]

I am having 6023 E which is having 8 DIO . I want to generate pulse patterns on any of the lines at 1MHz frequency.Can you help me?

Yours sincerely

[Ali211]

I am having 6023 E which is having 8 DIO . I want to generate pulse patterns on any of the lines at 1MHz frequency.Can you help me?

Yours sincerely

[GerdW]

Hi Ali,

according to specs the DIO are software-timed.

With this card you will not able to have 1MHz output rates on the DO lines (if the specs are correct)...

You still didn't tell us the errors you're receiving. Maybe the error message contains something like "sample mode only on demand possible"...

Ali is flooding the forum with questions related to this very topic: here, here and here and here too. Apparently he also has a M card available too...

[Ali211]

Sir I am using 6023 E . i tried DAQ assistant and i was getting erros as you mentioned "sample mode only on demand possible". I tried waveform write even than same erroe was comming in Timing block. i want to generate digital waveforms at 1MHz .i am trying with 6023E . Please guide me how is it possible with this hardware if not than possible please tell me why?

Yours sincerely

[Dennis_Knutson · Accepted solution]

As already mentioned, your device does not support hardware timed digital output. That is exactly what the error message means. On demand means software timed I/O. Software timing means nothing greater than about 1kHz and that would have significant jitter.

[GerdW]

Hi Ali,

did you read the specs of that DAQ card before trying to solve your duty?

Did you talk to the NI sales guys before using that card for your duty?

Did you any research before trying to use some unsuitable hardware for your project?