RT FIFO error

[Cashany]

I have created a RT FIFO like the figure below. 

When I want to write to FIFO I get the following error. 

[Norbert_B]

You have read the error message?

It clearly states the reason for the broken wire: Datatype mismatch.

What bothers me is that the error message you inserted talks about "1-D array" as source AND sink. I would expect your FIFO to be the sink, and it is configured as scalar fixed point (if you connected the Create FIFO correct)

Norbert

[Cashany]

RT FIFO is created with a data type of "fix-piont" but the error says that it is "double," that's confusing. 

[Norbert_B]

Please post the VI for further analysis....

Norbert

[Cashany]

Please find attached the VI. 

[Norbert_B]

As i don't have your bitfile available, i cannot see the original datatype you want to put into the FIFO.

But it seems to me that it is an array as you get that value from "Decimate 1-D array" and you also put that value into a waveform as 'Y' (meaning: The data array!).

Also, the constant you are using for initialization of the FIFO is scalar fixed point set to "adapt to entered data". I would expect you to define the configuration of the fixed point number beforehand (configuration in "Data Type" tab).

hope this helps,

Norbert

[Cashany]

Yes, the data to be input to RT FIFO is 1D array of fixed-point type. 

The problem is still there. 

I think I need to play around with the RT FIFO to solve this. 

[Cashany]

I connected a 1D array of fixed-point type to configure the RT FIFO and the problem solved. 

[Norbert_B]

If the data you want to put into the FIFO is an array, the default datatype must be array as well:

Norbert

[Cashany]

That's right.