Libre-FDATool Quick Start
TODO: this page is under development
Introduction
You can find some how-to's on the Libre-FDATool Youtube channel
Controls description
Libre-FDATool working mechanism is very simple. It works as a basic filter simulator, in which you define a stimulus, then configure a filter and finally execute a simulation.
In the GUI, there is a tab for each of the basic steps -- stimulus, filter and simulator.
HDL code generation is automatically executed when a simulation is performed.
Here we have a quick description of the different GUI tabs that control Libre-FDATool.
Stimulus
In the stimulus tab, we can configure the signal that is going to be sourced to the filter. Here, w can modify the waveform type, frequency, amplitude, length...
Filter
In the filter tab, we define the filter that is going to be used.
There are two basic configuration blocks:
- Hardware Realization: here, the different HDL model parameters are defined, such as the filter structure or the Fixed Point configuration for coefficients and input/output ports
- Filter Parameters: in this configuration box, we can select different high-level filter specs recipes in order to calculate the LTI system coefficients. There are different configurable parameters for every FIR or IIR filter recipe, such as window method, order, cut-off frequencies...
Once we have configured the filter, we can analyze the expected transfer function for both exact floating point and digital HDL model.