Texas Instruments INA223EVM, User'S Manual And Software Tutorial, Page: 15 / 26

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INA223EVM Software Overview
5.2 Configuring the INA223 Software
The next steps of this user’s guide describes how to configure the software and hardware for different
configurations.
5.2.1 I
2
C Address Selection
The INA223 has a flexible I
2
C address configuration that allows for multiple devices to be on the same I
2
C
lines. By moving the A0 address on jumpers JMP1 and JMP2 to either GND, VS, SDA or SCL, the INA223
can be changed to four different I
2
C addresses, as shown in Table 4 .
Table 4. INA223 I
2
C Address Configuration
A0 Address
GND 1000000
VS 1000001
SDA 1000010
SCL 1000011
Figure 16 shows how to configure the I
2
C addresses. Click on the I
2
C Address Select button (shown in the
red box) to select how the hardware is configured on the EVM. If the correct address is not selected, the
INA223 cannot communicate with the software.
Figure 16. Setting the A0 Address
15 SBOU125 – June 2012 INA223EVM User’s Guide and Software Tutorial
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