Grab directly on FPGA?

[SteenSchmidt]

Hi,

The usual way on a cRIO is to perform image grab on the real-time CPU and transfer to FPGA through DMA FIFO.

Is there any way currently, or planned in future products (cRIO-904x or 905x), that will allow GigE grab directly on the FPGA, not involving the real-time CPU at all before we get data back from the FPGA?

Thanks for any insights!

[andres.vargas · Accepted solution]

Hi,

At this moment no device uses GigE to do this, the ones that can grab frames directly from the FPGA work with Camera Link.

This, Comparison Between cRIO, IC and CVS for Vision Application, will give you a solid idea of how cRIO compares in performance to Compact Vision Systems and Industrial Controllers while using GigE.

You may compare NI's vision hardware with these links:

• Compact Vision System
•  Industrial Controller
• Frame Grabber Device
• Camera Link Adapter Module for FlexRIO