access fpga register on host

[Mac671]

Is it possible to use Registers in the LabVIEW FPGA just like front panel controls / indicators?

I had difficultiy finding that option from FPGA Palette.

When I tried drag and dropping this feature in my host this is what I got?

Do I have to create a custom interface using front panel terminals to pass values to my register?

Maciej

[Mac671]

Also I noticed that it is possible to put the reference to the Register to my front panel of the FPGA vi... but I don't know how to access it from the host,

I don't see it on the list of controls and indicatiors with the usage of property rear/write node.

[Dragis]

There is currently no support to access Registers (or Handshakes) from the host, they are target-scoped. If you need access to them on the host you will need to use some other mechanism like controls/indicators, DMA, etc. to get the values to/from the host.

[Mac671]

Thanks a lot for the prompt reply.

What is the reason of being able to pull out the I/O reference than to a front panel control?

Is this in order to be able to select which register I'm working on for testing?

Regards,

Maciej

[Dragis · Accepted solution]

Testing is one use case. It is also useful when you want to create reusable subVIs so you can pass different references to each call of the VI.