Comparison between PXIe 7858R and FlexRIO

[NimeVice]

Hi, 

I understand that the customizability is the advantage in FlexRIO over PXIe 7858R FPGA module, but can anyone explain with an example. Thanks for the help !

[ZYOng]

Re: How does the NI-6581 Adapter Module differ from R-series intelligent DAQ devices?

The big difference between standard R-Series devices and the new FlexRIO + Adapter Module is the ability to attach any I/O you want without needing to purchase a new FPGA. In the past, if you purchased an R-Series card and later found that the I/O specifications were not sufficient for your application (or a later application,) you would have to replace the whole card, including the FPGA, which may be perfectly fine for your application. Now, you can buy one FPGA card, and attach whatever IO you want to it. With that said, we currently have only one module. But the idea is that we, as well as others will produce I/O modules for the FlexRIO that you can purchase and extend your abilities with your single board. If you have the technical abilities, you could also design your own I/O module to any specification. In that respect, if the LVTTL is not what you would like it to be in the 6581, you can just build a module to include what you want.

Beyond that, just looking at the FlexRIO as a device in itself (without considering the adapter modules,) it includes onboard RAM which the R-Series cards do not. This gives you much more space to store data onboard the card (you wont have to use precious FPGA resources to build a memory space.)

So in the end, the differences between the two product lines are fairly well defined, though in this instance, the current Adapter Module we provide will not give you the same LVTTL as the R-Series device. If you don't plan to ever reuse the product for another application, the R-Series card may be the best choice. But if you need the flexibility listed above, the FlexRIO may be a good option for the long term.

[Terry_ALE]

I agree with the above.  Generally, I would look at the following:

I/O and rates

Onboard FPGA (size, etc)

Onboard DRAM (if applicable)

P2P support (tends to be a yes)
TClk and sync support abilities

[NimeVice]

Thank you for your reply. It clarifies a lot of doubts I had in my mind. However I am looking for answers in a very particular application as the following.

1) We plan to capture images in a camera and then want to analyze the image details in real time so that we can come up with an algorithm using Machine Learning. If I use the FlexRIO, I presume I won't have to use any frame grabber module separately. Let me know if it is correct.

2) Which kind of adapter module we would need with the FlexRIO for the above mentioned task? and also if it is necessary to use an adapter module at all ?

3) How many slots of PXIe 1092Q chassis is going to be used up if the FlexRIO along with its adapter module is used ?

[Terry_ALE]

---

@NimeVice wrote:

Thank you for your reply. It clarifies a lot of doubts I had in my mind. However I am looking for answers in a very particular application as the following.

1) We plan to capture images in a camera and then want to analyze the image details in real time so that we can come up with an algorithm using Machine Learning. If I use the FlexRIO, I presume I won't have to use any frame grabber module separately. Let me know if it is correct.

2) Which kind of adapter module we would need with the FlexRIO for the above mentioned task? and also if it is necessary to use an adapter module at all ?

3) How many slots of PXIe 1092Q chassis is going to be used up if the FlexRIO along with its adapter module is used ?

---

1 and 2. How about: https://www.ni.com/en-us/shop/model/ni-1483.html

3. One slot.