Generating rectangular pulses

[glokan]

Hi Guys,

I am quite a newbie using Labview and what I can ask may be easy.

I'd like to generate rectangular pulses for the bits I'm supposed to transmit.

The bits come from a string. In my file, I've converted the string into an int array to display it but I can't find the proper way to create rectangular pulses from the array. I've seen on the web the function rectpulse, but I don't know how to use it, there's no block rectpulse.

The results should be like this

Any help will be appreciated.

Cheers,

Felipe.

PS : when you use the file the string should be :

1

0

1

1

0

or whatever the bits.

[glokan · Accepted solution]

Ok, I found the spike function that suits me.

Cheers,

Felipe.

[GerdW]

Hi Felipe,

you should provide better test data when you want to convert a string into a pulse pattern…

[glokan]

Hi,

Thanks for your answer !

Best regards,

Felipe.

[glokan]

Hi GerdW,

Sorry to bother you one more time : I tried your vi but I must have done something wrong since it doesn't work for me.

I still have my first result : but I have to admit I don't understand where you create the pulse pattern in your vi.

With many thanks and best regards,

Felipe

[GerdW]

Hi Felipe,

look more carefully at my example: which plot style did I choose?

[glokan]

Hi GerdW,

Got it 😉

The main point of this is to transmit bits so :

-Is there a general way to say to the transmiter I want a square signal ?

or - Is this mostly depending on my transmiter ?

Because the transmiter won't be a graph anymore 😉

I will surely need to use the DAQ Assistant, I'm still reading documentation on it.

With many thanks and best regards.

Felipe

[GerdW]

Hi Felipe,

it is just a matter of your transmitter. It's the source of your physical signal and so determines it's shape!

You don't need to stick with the DAQAssistent: the basic DAQmx functions are easy to use and well documented. LabVIEW comes with a lot of example VIs for each of their use cases…

[glokan]

Hi GerdW,

Thank you so much for your help.

Best regards,

Felipe