Connect myRIO to NI USB DAQ Board

[FilipeTaveiros]

Hi,

Is it possible to connect a NI USB DAQ board, specifically NI USB-6212, to NI myRIO? I am working in a project which needs more analog /digital inputs and outputs.

Theoretically, the USB DAQ is accessible through APIs available both in C and LabVIEW. Are there APIs to do the same thing but embedded in the myRIO? A sort of driver, I guess.

Thank you very much.

[crossrulz]

I don't have time to test it now, but I would imagine that if you can get DAQmx installed on the myRIO, then it should work.  I'm not sure how setting up of the device would work from there though.

[FilipeTaveiros]

Hi friend,

Awesome news. When you expect to test it? Can I help in something? Have you already installed DAQmx on the myRIO or know how to do it?

Thanks.

[CaravagGIO]

Hi FilipeTaveiros,

it will probably not work because DAQmx drivers are not supported on RT Linux.

Best regards,

CaravagGIO

[crossrulz]

---

@CaravagGIO wrote:

Hi FilipeTaveiros,

it will probably not work because DAQmx drivers are not supported on RT Linux.

Best regards,

CaravagGIO

---

And that's what I thought the kicker would be.  Just never found that time to try.

[Hooovahh]

I suspect it is more complicated than this.  I mean how big is a DAQmx driver install for LabVIEW?  A couple GB?  Sure that adds a bunch of IDE stuff that isn't needed but how much room is on the myRIO?  I didn't think it was much, I thought it was on the order of a couple hundred MB.

Then on top of the drivers not being compiled for ARM.

[crossrulz]

---

@Hooovahh wrote:

I suspect it is more complicated than this.  I mean how big is a DAQmx driver install for LabVIEW?  A couple GB?  Sure that adds a bunch of IDE stuff that isn't needed but how much room is on the myRIO?  I didn't think it was much, I thought it was on the order of a couple hundred MB.

Then on top of the drivers not being compiled for ARM.

---

If you want to take it a step further, DAQmx does not even work on Linux.  DAQmx Base will, but who knows what capability that has.

[CaravagGIO]

Runtime drivers has about 150MB and myRIO has 256MB of nonvalatile memory, maybe it can fit there. OS could be bigger problem.

[FilipeTaveiros]

---

@crossrulz wrote:

If you want to take it a step further, DAQmx does not even work on Linux.  DAQmx Base will, but who knows what capability that has.

---

According to this PAPER, the specific board I am trying to connect to myRIO is supported by DAQmx Base 3.6.

---

@Hooovahh wrote:

I suspect it is more complicated than this.  I mean how big is a DAQmx driver install for LabVIEW?  A couple GB?  Sure that adds a bunch of IDE stuff that isn't needed but how much room is on the myRIO?  I didn't think it was much, I thought it was on the order of a couple hundred MB.

Then on top of the drivers not being compiled for ARM.

---

I believe once it is installed on the device, the drivers are recompiled. Anyone more experienced can explain better?

Therefore, I think it is worth trying. I would really appreciate some guidance. Thank you very much.

[Hooovahh]

---

@FilipeTaveiros wrote:

I believe once it is installed on the device, the drivers are recompiled. 

---

You are mistaken, the source to the DAQmx drivers are not installed, and therefor cannot be recompiled to some other platform.  Only binary distributions of the drivers exist.