Labview FPGA Array in For Loop

[GuilleCad]

Hi Labviewers:

I am using a sbRIO FPGA, developing a code to calculate a matrix*vector multiplication, and the result vector i perform a sigmoidal function to each element from the vector.

The result i would like to insert into an output array to have all the components from the sigmoidal at the same time.

As you can see in the attached image, I use a for loop, to go through the array to do the sigmoidal function, the output of the function I insert into an array of the same size than the entry array.

The question is, how can a I pass the complete vector when the For loop finished. Actually I have tried to pass the vector using a tunneling auto-indexed but labview show me the error the FPGA can only handle a 1 size array.

I have used an array to cluster cause I can not pass the array directly.

Also I have tried to put the output array into the for loop, but the behaviour was not that i want to.

Any sugestion to do that in a best way?

Thank you so much.

[GerdW · Accepted solution]

Hi Cad,

but the behaviour was not that i want to.

Are there any problems with your code? Which "behaviour" are you talking about?

Can you provide the expected output for a certain input?

You should not use InsertIntoArray in the FPGA, use ReplaceArraySubset and arrays of fixed size.

This should work in the FPGA too:

[GuilleCad]

Thanks for the quick response GerdW.

I expect an output vector non a matrix.

As you can see in the image at the ouput of the for loop I need an one size array (vector) with the sigmoidal result of the each component of the input vector.

But the FPGA does not admit arrays of two dimensions, (but i have not 2 dimensions I just have one), or a concatenating tunnel.

I will try your advices, once I implemented i let you know.

Thankyou.

[GuilleCad]

Thanks for your advices. It works!!