Digital I/O

cancel
Showing results for 
Search instead for 
Did you mean: 

LVDS from NI5782

Please tell me how to make a digital signal output from NI 5782 via AUX to the LVDS receiver. Interested in the electrical circuit connections and an example of a VI for the supply of test signals.

0 Kudos
Message 1 of 2
(1,536 Views)

Hey Alexey1992,

 

In order to access the AUX of the 5782 you’d have to figure out which CLIP we're instantiating and then from the CLIP reference we can see how we can interface with the AUX through an FPGA I/O node.

 

NI 5782 Component-Level IP Reference - http://zone.ni.com/reference/en-XX/help/372614J-01/friotransamr/5782clipref/

 

For example let's assume that we’re using the NI 5782 Single Sample CLIP and we wanted to access the first digital port. If we look at the document below we can see which CLIP Signal Name we want to access and how to interface with that signal.

 

---

DIO Port 0 WE:

Configures DIO Port 0 channels <0..3> on the AUX I/O connector for reading or writing.

TRUE = Writing enabled

FALSE = Reading enabled (output tristated)

 

DIO Port 0 Rd Data:

Reads digital data through the AUX I/O connector on DIO Port 0 channels <0..3>. Bit 0 corresponds with DIO Port 0 (0), bit 1 corresponds with DIO Port 0 (1), and so on. The top four bits of the U8 are unused.

 

DIO Port 0 Wr Data:

Writes digital data through the AUX I/O connector on DIO Port 0 channels <0..3>. Bit 0 corresponds with DIO Port 0 (0), bit 1 corresponds with DIO Port 0 (1), and so on. The top four bits of the U8 are unused.

---

 

NI 5782 Single Sample CLIP - http://zone.ni.com/reference/en-XX/help/372614J-01/friotransamr/5782highspeedclip/

 

Hope that helps!

 

Past that if you need further help I'd take a look at the example program from the example finder although I don't think either or the three access the AUX I/O. For more information on what resources are available check out this note in the NI 5782R User Manual and Specifications.

 

How to Use Your NI FlexRIO Documentation Set - http://www.ni.com/pdf/manuals/373580a.pdf#page=3

JY
Application Engineer, RF and Communications
National Instruments
0 Kudos
Message 2 of 2
(1,509 Views)