Cirrus-logic AN348 Instrukcja Użytkownika Pobierz pdf (Strona 2)

AN348

2 AN348REV2

2.2 The Essential Set-up

The evaluation boards are connected to standard PCs with Windows XP

operating systems via USB. After a successful

installation of the evaluation board software, the DSP Composer GUI can be started. Your computer screen should look like the

following:

The GUI can also be used in emulation mode (without any evaluation board connected to the host PC).

Please refer to theCDB48500-USB Evaluation Kit guide from Cirrus Logic for a basic introduction to the minimum hardware set-

up. This is available at http://www.cirrus.com

. These specifications are also accessible per the

START

 Program Files  Cirrus Logic DSP menu after installation.

2.3 Using the DSP Composer GUI, Project Example

This section shows how to build a project with multiple audio I/Os and some customized audio processing using the DSP

Composer GUI.

Let us consider designing an audio system with the following features:

• 4 Analog Inputs, 6 Analog Outputs

• Customized Audio Processing Chain as Follows:

- High-pass and low-pass filters for the input channels

- Mixer with 4 inputs to create 6 output channels

- 6-channel, 4-band parametric EQ

- Sine wave test-tone generator

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Cirrus-logic AN348 Instrukcja Użytkownika Strona 2