EV2300/
EV2400
I2C
DC Power Supply
+ -
Boot
Switch
SMB
Pull-Ups
Required
Install Gauge Shunts
Cell Simulator
Switches on for
Power Supply
Electronic Load
+ -
Interface Adapter
Figure 2. EVM Connection for Basic Gauge Operation
3
Interface Adapter
The bq76940/bq76930/bq76920 evaluation software and bqStudio software support 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.
If you have used an EV2300 with your computer previously, no additional installation is required. EV2300
drivers are included in the installation package and can be found in the installation directory after installing
the software, typically at C:\Program Files (x86)\Texas Instruments\bq76940. Alternatively or for the
bqStudio software, drivers are found at
http://e2e.ti.com/support/power_management/battery_management/m/videos__files/458983.aspx
or
. To install the drivers:
1. Navigate to the installation directory, typically C:\Program Files (x86)\Texas Instruments\bq76940
2. Run the file
InstallEV2300Drivers.exe
4
bq76940/bq76930/bq76920 Software
This section describes how to install and use the bq76940/bq76930/bq76920 software for the EVM. This
software is used when evaluating the AFE alone without the gauge. For evaluation with the bq78350
gauge, refer to
The bq76940/bq76930/bq76920 software supports the bq769x0 AFE I
2
C communication. This software is
intended to demonstrate register control and operation of the bq76940 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 Evaluation software allows the
user to provide that control from the GUI.
The software may also be identified as bq76940 or bq769X0 in menus or windows as space permits.
11
SLVU925B – April 2014 – Revised July 2014
bq76930 and bq76940 Evaluation Module User's Guide
Copyright © 2014, Texas Instruments Incorporated