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

2020 2 23
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更新时间：2022 7 13
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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

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Kiran Kintali
Kiran Kintali 2020-2-23

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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

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Abdulaziz Alharbi
Abdulaziz Alharbi 2020-2-24
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
Abdulaziz Alharbi 2020-2-24
Nevermind, I think I figured it out.
Thank you very much.
SAI DHRUVA
SAI DHRUVA 2022-7-13
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.

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Kiran Kintali
Kiran Kintali 2022-7-13

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

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