Writing Verilog code using Python with Migen.

Many people who never have used a Hardware Description Language (HDL), either Verilog or VHDL, thinks that these languages are weird. Actually, being able to generate code that is executed in parallel make the head of software developers explode, yes devs, we can execute all we want at the same t...

Published by Pablo on Nov 7, 2022

A different approach to the discrete Fourier transform.

The calculation of the Discrete Fourier Transform (DFT), like filtering, are by far the most common digital signal processing algorithms. When I started to investigate about the DFT, I noticed that I needed a large background before understand well how, first the Fourier Transform works, and then...

Published by Pablo on Oct 24, 2022

Creating a custom PolarFire SoC design.

FPGA manufacturers are determined to show us how their devices can do very difficult things like process video, detect in that video who is wearing a mask and who is not, detect if the people is happy or not… all of this while a led is blinking. This make that the information we can find are rela...

Published by Pablo on Oct 10, 2022

Debugging a Microchip's SmartFusion2 SoC.

When I started to develop designs for FPGA, the thing that I missed from the digital signal processors is the debug capabilities. I used to debug my programs using JTAG that performs “real time” reads of the data memory, so I was able to see the value of almost any variable in “real time”. Real t...

Published by Pablo on Sep 26, 2022

Trying to hack a garage door opener with the USRP B210.

National Instruments recently released the USRP B206mini-i, a new portable SDR with a range from 70 MHz to 6 GHz with an USB-C interface compatible with most of the laptops. When we think about radio signals, we often think that all of them are private, impossible to decode, complicated… but...

Published by Pablo on Sep 12, 2022

F4PGA and Project XRAY.

When I think about Open Source, the first that comes to my mind is GNU/Linux. This operating system was developed by Linus Torvalds and Richard Stallman in the early 90’s, then all the code was released to the community. Now, this first operating system has grown, and we can find many different o...

Published by Pablo on Aug 29, 2022

How to find documentation about DSP and FPGA.

Sometimes I receive emails or direct messages on LinkedIn from readers asking me about where they can find documentation about DSP, FPGA or both together. Unfortunately, I did’t find webpages where talk about how to make dsp on an FPGA, but there are a several webpages. that I check for some of m...

Published by Pablo on Jul 30, 2022