LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

control values from rt to fpga

Called support and the answer was create FIFO in project explorer. This would allow the variable to be stored in memory, what I think everyone refers to as DMA. Setup as Host to Target - DMA. Matched the data type to a single control input. I have 6 I need to transfer from rt to fpga. Placed Variable Transfer vi on block diagram and ... tried everything I know to hook up the wire and always a red X. 

 

What is wrong?

 

0 Kudos
Message 1 of 5
(2,108 Views)

Hi Load,

 

what's wrong?

- You didn't provide a VI nor a picture of the BD.

- You didn't provide information on your LabVIEW version.

- You didn't provide information on given explanation for "red X". Did you read the context help?

- You could use an array control on your FPGA to hold 6 values.

- You could use 'direct' access of FPGA controls from RT side instead of FIFOs.

- Probably some more points...

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
Message 2 of 5
(2,107 Views)

Call tech support back.

 

0 Kudos
Message 3 of 5
(2,103 Views)

@Load wrote:

Call tech support back.

 


I am so confused.

0 Kudos
Message 4 of 5
(2,099 Views)

Hi Load,

 

why should I call tech support?

 

I don't have problems to transfer values from FPGA to RT by FIFO or by 'directly' accessing controls...

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
0 Kudos
Message 5 of 5
(2,085 Views)