How to serialize an HDL Coder function with a vector input ?

Hello,

I have a function that I want to convert to HDL code.

The function input is a vector containing around 3000 elements. But when I convert the code and get the resource report, the number of I/O bits is too large for the FPGA to handle, so I read that I should instead feed the vector element by element to reduce the number of I/O bits. I searched in the workflow advisor but didn't manage to find anything to do that. So what is the proper way to do this ?

Thanks in advance

Answer 1

[Kiran Kintali]

You can use mlhdlc_heq.m and mlhdlc_heq_tb.m example files on how to serialize input passed to the design. Thanks.

https://www.mathworks.com/help/hdlcoder/examples/image-enhancement-by-histogram-equalization.html

[Abdulaziz Alharbi]

In the example, it seems to me that they are feeding the function segmented elements through the test bench.

In my case, I need to have all the 3000 elements at the same time in order to operate on them. Is there a way I can serially input the vector and the function will try to store them until they are all arrived ?

I tried using a persistant array and an index in my function and it solved the problem of having large number of I/O bits but it created another problem where the loops in the function are no longer been streamed and the number of adders and multiplers is now large.

Thanks

[Abdulaziz Alharbi]

Nevermind, I think I figured it out.

Thank you very much.

[SAI DHRUVA]

Sir, I'm too facing the same problem. I need to serialise huge vector of elements. Could you please tell me how did you figure it out ? It would be very helpful, sir.

Answer 2

[Kiran Kintali]

Can you share you algorithm? You would need to share a design.m and a testbech.m files.

Thanks