Cirrus Logic CDB43131-GBK, Руководство пользователя

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CDB43131-GBK
DS1155V2DB1 29
The example below shows the sequence of steps that should be followed to select On-board Crystal as MCLK source
using the Sys_Config tab.
1. XTAL bias is set by default to 12.5 µA.
2. Click on the Enable XTAL Interrupts check box to enable crystal interrupts.
3. Power up the Crystal Interface by clicking on the Power Down XTAL LED (LED color will change to Red).
4. Click on XTAL Status button. If "Ready" LED is lit, the crystal Interface has been configured successfully, and the
CS43131 is ready to use XTAL as MCLK source. Go to step 6.
5. If "Error" LED is lit, then the crystal interface is not configured. Power down the board. Check the crystal and the
crystal circuit on the board.
6. Select "XTAL" from MCLK Source drop-down menu to select XTAL as MCLK Source.
Figure 30 Sys_Config Tab with XTAL as MCLK Source