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Using an RP2040 for programming and debugging the CP SOM ONE

When we design a board for a programmable device, an important thing that we have to consider is how to program that board. This was the question I asked myself when I designed the CP SOM ONE. In the first version of the SOM, I added a JTAG header in the SOM to use the JTAG HS3, but this limits t...

Published by P.Trujillo on Nov 25, 2023

Data acquisition from an electric model running on the FPGA of a Speedgoat Performance.

If there is a device that I would really like to have, it is a hardware-in-the-loop test system. These devices allow you to have almost any hardware circuit on your desktop with, in general, limited space. We already saw almost a year ago how we can deploy a hardware model in the Speedgoat Baseli...

Published by P.Trujillo on Nov 11, 2023

Designing an FPGA SOM.

In the market we can find many different FPGA boards with infinite interfaces, peripherals, connectors… so anyone can think, why you would need to develop your own FPGA board. You just have to find a development board that meets most of your requirements, especially if you are a hobbyist and you ...

Published by P.Trujillo on Oct 28, 2023

Getting started with a Zynq development board. Base PS Design.

A sales representative has given you a Zynq development board, it has even a heat sink! It seems powerful. When he/she leaves your office you run to your desk to connect your new board to the USB or the AC adapter. The board is alive, some LEDs are blinking, seems that it is sending some text ove...

Published by P.Trujillo on Oct 14, 2023

Custom HW design for Red Pitaya STEMlab

A few weeks ago we talked here about the Red Pitaya STEMlab board. We saw how we can use its web-based environment to deploy different APPS and also how using Python we could read and write analog and digital data to a credit card size board. As I mentioned in that post, the STEMlab is not just a...

Published by P.Trujillo on Sep 30, 2023

My FPGA development environment

When a developer wants to start to develop, the first they have to do is install the development environment. This usually is not a big deal, you just have to download the environment installation file and install it. Maybe, if you use Linux as your operating system, you will have to run some ext...

Published by P.Trujillo on Sep 16, 2023

Getting started with Red Pitaya STEMlab

A few years ago, I started to hear about Red Pitaya. The first I heard about this device is that it was a Zynq-based board, actually, a Zynq-based development board. Then, doing some research on the internet I discovered that it is not just a development board, but it is a sort of Analog Discover...

Published by P.Trujillo on Sep 2, 2023

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...