fpga

[MK23]

Dear all,

I'm using cRIO-9024 & LV 2012 and have some trouble in FPGA.

I'm trying to calculate sine & cosine values in FPGA so I have used "High Throughput Sine&Cosine" in FPGA.

However, the function returns wrong value.

For example, If I give "6.2832" (2*pi) as an input it returns "0.63" (cos x)
Also, If I give "3.1416" (pi) as an input it returns "-0.9" (cos x)

I am able to receive right values in RT level from VIs in RT but I am having the wrong values in FPGA from "High Throughput Sine&Cosine".

Does anybody know how to resolve the problem?

Thank you for your help!!!

-Kim

[Whit-E_Wall-E]

Hello,

We do have an Example using the High Throughput Sine&Cosine Function.

In LabVIEW go to Help >> Find Examples >> Hardware Input and output >> CompactRIO >> FPGA Fundamentals >> High-throughput Math >> Generate Sine Wave

Are you able to run the example properly?

[MK23]

Hi,

the problem is resolved.

input unit of the function in Real-Time is rad.

however, input unit of the function in FPGA is pi rad.

I didn't notice the difference.

Thank you

[keshavsew]

Hello,

I am using LabVIEW 2013, and i cannot found highthrough under FPGA fundamentals in compact rio examples.

I would be grateful if yo could screenshot the example or post it. 

Thank you very much

[Queue-tip]

Try the following path in the Example Finder:

Hardware Input and Output >> CompactRIO >> Math and Analysis >> High-Throughput functions >> Sine Wave Generation

Hope this helps!