Building a Peak/pulse-detector macro block for HDL coder (SIMULINK)

This feels a bit like re-inventing the wheel...

Is there a peak detection function for DSP, that works on streaming data that can either be generated to HDL with HDL coder or re-built using xilinx macros to target hardware?

Are there example projects where I can re-use some of this?

I am trying to create some hardware block that detects peaks from the output of a hardware FFT. This data is streaming data on a sample clock and not vectorized data.

Answer 1

[Kiran Kintali]

Related Post:

https://www.mathworks.com/matlabcentral/answers/889752-how-to-store-the-output-of-a-repeating-function-matlab-function-block-simulink

Is this something that could be of use for you what you are looking for?

Answer 2

[David]

This was helpful, But using a matched FIR filter may be too complex for my needs.

I would like to compare it to the solution used in this matlab video here:

Using Simulink to Deploy a MATLAB Algorithm on an FPGA or ASIC

https://www.youtube.com/watch?v=6sM_hKR2lIg

sim_pulse_detector_003/PeakDetector

[Kiran Kintali]

https://www.mathworks.com/matlabcentral/fileexchange/69651-hdl-coder-self-guided-tutorial

I believe the video is made using this material on the github

https://github.com/mathworks/HDL-Coder-Self-Guided-Tutorial

MathWorks HDL Coder Team (2026). HDL Coder Self-Guided Tutorial (https://github.com/mathworks/HDL-Coder-Self-Guided-Tutorial/releases/tag/1.75.0), GitHub. Retrieved March 5, 2026.