Increasing ADC resolution using oversampling.

After a few post dedicated exclusively to the FPGA, on this post I going to talk about a technique that can help us to improve the ADC resolution. To study this technique, we will use as a example the ADC which is based the Digilent’s ZMOD ADC, the AD9648.

Published by P.Trujillo on Nov 23, 2020

Using Xilinx’s FIR Compiler.

When we need a FIR filter, in general, or at least in my case, we already have a FIR filter HDL, where we only need to change the filter order to the application needs, in most cases this configuration can be parametrized, and the second thing we have to do is compute, quantify and write this new...

Published by P.Trujillo on Nov 9, 2020

Creating an AXI Stream IP for an acquisition system.

On the last post, we talk about the using of DMA to send data between PL and PS on SOC or MPSOC devices. The example that I proposed, was a kind of FFT compute accelerator, where a signal stored on the DDR was sent to the PL, and here, an FFT was computed, then, the result of the FFT was sent aga...

Published by P.Trujillo on Oct 26, 2020

Using the DMA and AXI4 Stream on Zynq US+.

When we are working with a SOC or MPSOC, is very common the data interchange between the PL and the APU, or between the PL and the RPU. To do that, the Zynq platform gives us several interfaces between the PL and both APU and RPU aka PS. In case of Zynq MPSOC, these interfaces are described on th...

Published by P.Trujillo on Oct 12, 2020

Designing an FPGA board.

Few month ago, I decided to design my own FPGA development board. The main reason for that was simply learn to do it, because I have design a lot o boards for peripherals, PMODs, or other projects, but never one based on FPGA, and for me, route a BGA was a big challenge.

Published by P.Trujillo on Sep 30, 2020

Asymmetric multiprocessing on Zynq MPSOC.

On many applications, specially when we talk about signal processing, on the same application there is a mix of real time processing and a non-real time operating system, or on machine learning applications, when we can have a mix of a fast acquisition system, and a powerful operating systems for...

Published by P.Trujillo on Sep 1, 2020

Using moving average filters for hard filtering.

It’s September, most of you will come back to work, others don’t remember what is that of holidays, and others, luckiest people, will start your holidays soon. I am in the first group, so I have to back to work, and also, back to write here :).

Published by P.Trujillo on Sep 1, 2020