NI USB-6212 digital output

[A.A.Z.]

Hi there,

I am using a the USB-6212 board and I would like to generate a task in order to create a digital square wave at a given frequency (400 Hz). My problem arises from the fact that NI MAX only allows me to use only a software timed timing for such task. Did I miss something? Should I use the output from a counter of my board in order to generate a digital square wave?

Thanks.

[alamanna]

Hi,
it's not clear what you mean by "software timed timing".
Anyway, I tried to create a simulated USB-6212 and then an analog voltage output task. In the screenshot below you can see how to generate a 400 Hz square wave.

Hope it helps!
Regards,
Alessia

[crossrulz]

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@A.A.Z. wrote:

I am using a the USB-6212 board and I would like to generate a task in order to create a digital square wave at a given frequency (400 Hz). My problem arises from the fact that NI MAX only allows me to use only a software timed timing for such task. Did I miss something? Should I use the output from a counter of my board in order to generate a digital square wave?

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The USB-6212 only has static DIO.  This means they can only be software timed.  The simplest thing to do would be to use one of the counters to generate your square wave.

[Kevin_Price]

1. No, your device doesn't support hw-clocked DIO, sometimes called "correlated DIO" and support on most  other M-series devices.  According to this article, your USB  bus-powered device is one of the exceptions.

2. Yes you *can* generate such a square wave with a counter and as a bonus, it'll be much simpler than setting up correlated DIO.  Check it out in MAX and then look at the shipping examples for Counter Output.

-Kevin P