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Using the FDATool in Digital Filtering Applications

In step 2 we will add the FDATools (Filter Design Assistant) to the design and set the parameters we would like to implement in our designs.

Understanding the FDATool

1. Drag and Drop three FDATool blocks into your design from the DSP subsection of the Xilinx Blockset.

2. Rename the first one - LP_filter, the second - HP_filter, and the third - BP_filter.

3. Double click on each instance of the the tool and experiment with the settings. Click the Design Filter button to commit changes. What is the audible frequency range? What effect the settings you adjust have on the processed output frequencies?

4. Once you are comfortable with how the tool works, adjust your properties to mirror those illustrated below.

NOTE: When you make changes, you must apply them by clicking Design Filter. There is no need to store the filter in your manager unless you wish to create and maintain a library for future endeavors.

5. After the filters have been configured, their characteristics should apparent by looking at the block. Your design should look similar to the figure below:

6. OK GREAT! Now I have a group of three filters that cannot be sythesized into hardware. Now what?

Let's add M-Code functional and control blocks to the design. .