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4 TLV320AIC34EVM Software
4.1 I
2
C Address Selection
TLV320AIC34EVM Software
The following section discusses the details and operation of the EVM software.
Note: For configuration of the codec, the TLV320AIC34 block diagram located in the TLV320AIC34
data sheet is a good reference to help determine the signal routing.
When the software is run, a window appears which allows for selecting the I
2
C address of the
TLV320AIC34. This window (see Figure 3 ) has two controls for setting the state of ADDR_A and
ADDR_B. To allow proper communication with the EVM, these should match the settings of SW2 located
on the EVM (Table 2 ). When ADDR_A and ADDR_B are adjusted, the correct device address for Block A
and Block B will be shown. Note that the actual I
2
C address shown and the address for the software may
be different. This is done for programming reasons and the correct address should be used for system
development.
Figure 3. I
2
C Address Selection Window
Note: For operation of the EVM in the default state, no changes are required on this panel. The
default setting for the GUI software and the default setting for the EVM hardware are
configured so that Block A address is 0x30 and Block B address is 0x32 as shown. This
corresponds to SW2 on the TLV320AIC34EVM being in position LO-LO.
TLV320AIC34EVM-K 10 SLAU232 – December 2007
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