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Eclypse Z7 and xFFT.

When we talk about digital signal processing, 2 things come to my mind. First one is the sinc wave, used as a cover page of a lot of books about signal processing, and the second one, is the fourier transform.

Published by P.Trujillo on May 25, 2020

Eclypse Z7, ZMODs and SYZYGY.

Few months ago, Digilent presented their new development platforms based in Zynq and Zynq US+, with connectors compatibles with SYZYGY standard. This standard is in the middle between PMOD and FMC, with the enormous advantage that can be soldered by makers, with a solder, and some patience.

Published by P.Trujillo on May 3, 2020

Emulating hardware with Zynq.

Due to quarantine, most of us are working from home, and seems that the way we used to work, even more when our work consist in write or develop with our laptop, will be change. When your work is computer based, for example, on web, is easy still working from home with the same benefits and limit...

Published by P.Trujillo on Apr 26, 2020

Real time filter compute with PYNQ

We are in front of our customers, we have our design fully tested in our lab, all analog and digital filters works perfectly, but, in the customer installations there are an unknonw noise source. In this case, we must recompute digital filters, and spend time re sintesizing and implementing. Ma...

Published by P.Trujillo on Mar 31, 2020

DDR Resources

When most of us hear DDR, the first think that comes to our mind is RAM memories, but DDR is related with the comunication protocol, not with the memory. DDR means Double (Dual), Data Rate. This, basically means that un 1 single clock cycle, 2 data will be sended for every line. In this post I ...

Published by P.Trujillo on Mar 21, 2020

Why I use scripting?

When I started with FPGA, like probably all of us, the first thing I did when I arrived at my job position was to start Vivado (or ISE), and start coding, and once the code was write, cross my fingers, and Generate Bitsream. If all works fine, after some minutes (or hours), we had my bitstream ...

Published by P.Trujillo on Mar 1, 2020

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...