FFT algorithm using an FPGA and XDMA.
In this blog we talked (a little) about the xDMA IP from Xilinx, and how to send and receive data through PCI using an FPGA. In that occasion we used the Picozed board with the FMC Carrier gen 2. This…
Controlling a SMPS from MSS with SmartFusion2 SoC.
FPGAs have been present in the telecommunications field for many years, almost since they were created. On the other side, there are fields where FPGAs have not arrived yet for several reasons such as power consumption or price. But there…
Implementing a dual core processor in FPGA.
Few years ago, microprocessors manufacturers competed to get the faster processor. High speed means more tasks can be executed in the same amount of time, but also, means higher power consumption. To improve this, the voltages of the core starts…
Using PCIe in Xilinx 7 Series.
When we look into communicating an FPGA with a computer, the first interface that we can find is UART, but this interface has several limitations in terms of speed. In order to transfer high amount of data between the CPU…
Creating Pynq images for custom boards.
In this blog we already talk about Pynq and how it can help us to develop some applications in a easy way. Obviously, Pynq has its limitations but it still being a powerful tool with we can develop projects in…
Equalizing IIR filters for a constant group delay.
In the previous post I have design an audio equalizer. On that design I have used 3 different FIR filters to split 3 different frequency bands in order to send them to different speakers. Very low frequencies will be sent…
Audio equalizer based on FIR filters.
Digital signal processing can be used in almost all engineering field, from seismology, to obtain the distance where an earthquake has been generated, to data science, but these areas use digital signal processing as a way to obtain the real…
Creating a RISC-V based design on SmartFusion®2 SoC
Everybody knows that the processor of the moment is the RISC-V, even it is not a processor itself, the amount of the boards based on RISC-V is growing more and more. To understand the reason of that, we have to…
Adding windows to xFFT IP.
Digital signal processing algorithms are, in general, purely mathematical algorithms that works perfectly on our notebook or MATLAB, but in real design, the algorithm starts to return us some unexpected results. One example of that is the quantification error. While…
Implementing a FIR filter using folding.
In this blog we have seen how to develop a FIR filter. In this post you have an example of FIR filter where the coefficients are configured though AXI4-Lite interface. The goal of that post was the implementation of a…