INA230EVM Software Overview
www.ti.com
Figure 15 shows an error that pops up if the computer cannot communicate with the EVM. If you receive
this error, first check to see that the USB cable is properly connected on both ends. This error can also
occur if you connect the USB cable before the SM-USB-DIG Platform power source. Another possible
source for this error is a problem with your PC USB Human Interface Device driver. Make sure that the
device is recognized when the USB cable is plugged in; recognition is indicated by a Windows-generated
confirmation sound.
Figure 15. INA230EVM Software: Communication Error with the SM-USB-DIG Platform
5.2 Configuring the INA230EVM Software
The INA230EVM software first requires a series of setup processes to configure the device and ensure
that it works properly. On the Configuration tab (see Figure 14), there are six steps noted:
Step 1. Set I
2
C Address
Step 2. Configure Operation
Step 3. Set Conversion Times
Step 4. Select Configuration Method
Step 5. Set Configuration Register
Step 6. Configure Alert Pin
This section explains how to configure the software and reviews some of the different setups that can be
done.
5.2.1 I
2
C Address Selection
The INA230 device 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 and A1 addresses on jumpers J3-J6 to either GND, V
S
, SDA or SCL,
the INA230 can be changed to a total of 16 I
2
C addresses as shown in Table 5.
Table 5. INA230 I
2
C Address Configuration
A1 A0 Slave Address
GND GND 1000000
GND V
S+
1000001
GND SDA 1000010
GND SCL 1000011
V
S+
GND 1000100
V
S+
V
S+
1000101
V
S+
SDA 1000110
V
S+
SCL 1000111
SDA GND 1001000
SDA V
S+
1001001
SDA SDA 1001010
SDA SCL 1001011
SCL GND 1001100
SCL V
S+
1001101
SCL SDA 1001110
SCL SCL 1001111
16
INA230EVM Evaluation Board and Software Tutorial SBOU124–March 2012
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated
