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The end of the world

The Mayas predicted the end of the world in 2012. Engineers said that the year 2000 was going to be critical for many systems based on computers. According to the UNIX time, systems won’t be able to work after January 19th of the year 2038. All of them were wrong, the end of the world was not goi...

Published by P.Trujillo on Jan 5, 2025

Using the AXI DMA in Petalinux 2024.1

A year ago I wrote an article about how to use the AXI DMA peripheral within Petalinux. This article worked at the moment I wrote it but a year later, it stopped working. I am not 100% sure of the cause, but I think that it is related to the newest versions of the Linux kernel used in the latest ...

Published by P.Trujillo on Dec 21, 2024

Using a fixed-point solver on Speedgoat model.

In this blog, you have seen filters, regulators, and other kinds of DSP algorithms implemented in Verilog, and all of them have something in common, all of them were implemented using fixed-point precision. The reason for this is simple, I didn’t need more accuracy than 20 or 24 decimals bits can...

Published by P.Trujillo on Dec 7, 2024

Deploying a Buck-Boost model on a custom HIL platform.

A few years ago, I found the hardware-in-the-loop (HIL) platform to be very interesting. I am sure that you have noticed this because of all the articles I write about these platforms and modeling. What makes interesting for me these platforms is that they mix all the electronic fields I like, po...

Published by P.Trujillo on Nov 23, 2024

Understanding the PID regulator.

I always remember when the Optimization and Optimum Control teacher at the university told us that 90% of the regulators we will find in our life, will be PID, 5% will be LQR and the other 5% will be other complex regulators. PID control has become the most used control because of its simplicity ...

Published by P.Trujillo on Nov 10, 2024

Modeling a Boost converter in Speedgoat Performance.

It has been some since the last time we talked about Speedgoat, and during this summer I have been working with it deploying some models. In this blog we saw how to deploy a Buck converter electrical model using Speedgoat, this time we are going to deploy another converter model a Boost converter...

Published by P.Trujillo on Oct 27, 2024

Deploying a converter model on the Leonidas board

When discussing real-time simulations, we often think of big and powerful devices. In the same way, when we talk about Hardware-In-the-Loop (HIL), we think on FPGA like the Kintex7 used in the Speedgoat Performance so, do we need huge FPGAs to perform real-time hardware simulations? The short ans...

Published by P.Trujillo on Oct 13, 2024

Application Notes

[AN001] Designing from zero an IIR filter in Verilog using biquad structure and bilinear discretization.

Filtering is likely the most common DSP algorithm that any embedded engineer has to design, no matter it they are developing for an STM32, or TI DSP or, of course, en FPGA. Filtering is such important because the majority of the applications are connected to the real world, so they need to captur...

[AN002] Running subcycle average models on Speedgoat Performance System.

Materials like Silicon Carbide (SiC) or Gallium Nitride (GaN) are making our power electronics converters faster and faster. This means small inductors and capacitors that make, in most cases, the cost of the devices decrease. This also means that the control devices also have to be faster, and n...