Cirrus Logic CRD42L52 - Manual (Page 9)

DS680RD1 9
CRD42L52
4. SOFTWARE MODE CONTROL
The CRD42L52 may be used with the CDB42LDB1 driver board and the Microsoft
®
Windows-based FlexGUI graph-
ical user interface, allowing software control of the CS42L52 and FPGA registers. The latest control software may
be downloaded from
www.cirrus.com/msasoftware . Step-by-step instructions for setting up the FlexGUI are pro-
vided as follows:
1. Download and install the FlexGUI software as instructed on the Website.
2. Apply power using either an external source connected to screw terminal J1 or 3 AAA batteries (not includ-
ed) on BT1, BT2 and BT3.
3. Connect the CDB42LDB1 to the host PC using a USB cable.
4. Launch the Cirrus FlexGUI. Once the GUI is launched successfully, all registers are set to their default reset
state.
5. Refresh the GUI by clicking on the Update button. The default state of all registers are now visible.
For standard set-up:
6. Set up the CS42L52 in the CODEC Configuration, Analog Input Volume Control, DSP Engine or Analog and
PWM Output Volume Controls tab as desired.
7. Begin evaluating the CS42L52.
For quick set-up, the CRD42L52 may, alternatively, be configured by loading a predefined sample script file:
8. On the File menu, click Restore Board Registers...
9. Browse to Boards\CRD42L52\Scripts\.
10. Choose any one of the provided scripts to begin evaluation.
To create personal script files:
11. On the File menu, click Save Board Registers...
12. Enter any name that sufficiently describes the created setup.
13. Choose the desired location and save the script.
14. To load this script, follow the instructions from step 8 above.