DC Power Supply
+ -
Boot
switch
EV2300/
EV2400
I2C
SMB
Pull-ups
for
EV2300
Remove
for
EV2400
Remove gauge
shunts
Cell simulator
switches on for
power supply
www.ti.com
bq76940/bq76930/bq76920 Software
Figure 1. EVM Connection for Basic Operation
3 bq76940/bq76930/bq76920 Software
This section describes how to install and use the bq76940/bq76930/bq76920 software for the EVM.
The bq76940/bq76930/bq76920 software supports the bq76920 AFE I
2
C communication. This software is
intended to demonstrate register control and operation of the bq769x0 family of AFEs in the absence of a
gauge or MCU. This software is not intended to operate on a bus with another master. The AFE does not
turn on the protection FETs without control, the bq76940/bq76930/bq76920 software provides that control
from the GUI.
The software may also be identified as bq76940 or bq769X0 in menus or windows as space permits.
3.1 System Requirements
The bq76940/bq76930/bq76920 software requires a Windows 7, or later operating system. The computer
must also have Microsoft
®
.NET connection software version 4.0, or higher, installed. The examples in this
document are from Windows 7.
3.2 Installing the bq76940/bq76930/bq76920 Software
Find the latest software version in the software section of the EVM tool folder
http://www.ti.com/tool/bq76920EVM or search from power.ti.com. Check periodically for software updates.
Use the following steps to install the bq76940/bq76930/bq76920 software:
1. Copy the archive file to a directory of your choice, extract all files and run the setup.exe application.
2. Follow the instructions and make selections as required on the setup windows selecting Next, as
required. TI recommends installing the software in the default location.
3. On the last window, select Close to complete the bq76940/bq76930/bq76920 software installation.
3.3 Interface Adapter
The bq76940/bq76930/bq76920 evaluation software supports either the TI EV2300 or EV2400 interface
board to provide communication with the EVM board from the computer. Drivers must be installed for the
EV2300. The EV2400 uses operating system drivers and no separate installation is required. Do not
connect the EV2300 interface board to the computer until after the drivers are installed.
5
SLVU924B–March 2014–Revised April 2014 bq76920 Evaluation Module User's Guide
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Copyright © 2014, Texas Instruments Incorporated
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