Creating A Basic Signal Flow - Analog Devices ADAU1772 User Manual

Evaluation Board User Guide

CREATING A BASIC SIGNAL FLOW

To access the Schematic tab, where a signal processing flow
can be created, click the Schematic tab at the top of the screen
(see Figure 16).
Figure 16. Schematic Tab
The left side of the schematic view includes the Toolbox, which
contains all of the algorithms that can run in the SigmaDSP.
Select the Input cell from within the IO > Audio Input folder
(see Figure 17).
Figure 17. Input Cell Selection
Click and drag the Input cell into the blank schematic space to
the right of the Toolbox (see Figure 18).
Figure 18. Input Cell
Because we are using inputs "2" and "3" as a stereo pair, deselect
inputs "0" and "1'" and select input boxes "2" and "3" (see
Figure 19).
Figure 19. Inputs 2 and 3 selected
Navigate to the IO >Audio Output folder and select the
Output cell (see Figure 20).
Click and drag an output cell to the schematic. Do this again to
create two outputs (see Figure 21). Make sure the output cells
are assigned to "OUT0" and "OUT1" respectively.
Connect the cells together by left-clicking a blue output dot and
dragging to the green output dot of the next cell, connecting
input "2" to "OUT0" and input "3" to "OUT1"(see Figure 22).
The basic signal flow is now complete with stereo I/O.
To add Volume control via the buttons labeled "VOL-" and
"VOL+", add jumpers to S5 and S6 on J9 (See Figure 23).
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Figure 20. Output Cell Selection
Figure 21. Output Cells
Figure 22. Connected Signal Flow
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