INA260EVM GUI Software
21
SBOU180 – November 2016
Copyright © 2016, Texas Instruments Incorporated
INA260EVM-PDK and Software Tutorial
4.1.1
Step 1: Set the I
2
C Address
The first step to configuring the INA260 from the EVM GUI is to be able to communicate with it. As
indicated by
, the address bits A0 and A1 may represent up to 16 different INA260 devices
communicating over a single I
2
C bus, where each device is identified by a unique slave address.
Therefore, step 1 involves selecting the correct A0 and A1 values that represent the slave address of the
INA260 installed on the EVM. In other words, the states of A0 and A1 in the GUI must match the jumper
settings chosen for J2 and J3 on the EVM. The equivalent hexadecimal value of the slave address is
displayed in the box labeled
I
2
C Address
in
.
Figure 14. Slave Address Setting
4.1.2
Step 2: Configure Operation
The INA260 offers multiple options for controlling the measurement process, including sequencing,
triggering, averaging as well as a power-down function. The associated control parameters can be
specified in this section of the GUI.
shows the options available under the
Operating Mode
menu. The default operating mode is
Shunt and Bus, Continuous
, which configures the INA260 to continuously measure the shunt current and
bus voltage in serial order. The INA260 can also be set up to measure only the shunt current or bus
voltage, but most applications benefit from measuring both signals.
NOTE:
For maximum functionality, select a
Shunt and Bus
operating mode, as shown in
Selecting any of the manual trigger modes sets up the INA260 to take a measurement only when the user
clicks the
Write All Reg
button.
The
Power Down
mode stops all measurements from taking place until the operating mode changes
again. The device remains attached to power but draws minimal supply current.
Figure 15. Operating Mode Menu