Texas Instruments bq77910AEVM User Manual (English)

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Software Operation

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Figure 7. Register Section

The Read Volatile Registers command will read the values from the registers in the part and display them

in the GUI window. When a part is first powered, these will typically be zero. When connecting to a

powered part, they will likely contain residual values.

The Read EEPROM Registers command will read the EEPROM values from the device and display them

in the EEPROM registers section of the window for viewing. This is a viewing operation and data

manipulation is not allowed in the displayed EEPROM data.

The Read All Registers command reads both the volatile and EEPROM registers from the device and

displays the values.

The Copy EEPROM to Volatile command will copy the EEPROM register values to the corresponding

volatile registers and display both in the GUI. This is a good starting point for making incremental changes

to the device settings.

The Verify Volatile Registers command checks whether the volatile registers match the contents of the

device. This can be useful as a check before programming the EEPROM.

The Program EEPROM command will write the volatile register values.

5.1.4 File Menu

The Load Registers from File command will read a properly formatted file and fill the volatile register

section with the values. This is useful to load a device with a saved configuration. A windows navigation

tool allows selection of the file. While files could be edited, it is recommended to load files saved by the

software, and if any editing is performed on the file, check all values before programming the device.

The Save Registers to File command will create a file. A windows navigation tool allows selection of the

location and file name. Files have the .cfg extension.

The Exit command will exit the program.

5.2 Working with Register Values

When the software initially connects to a device it will copy that device's EEPROM to its volatile registers

and display those results. Since the device does not know if power has been lost to the device, the

should always be read before making changes. If a file is loaded with values matching the displayed

values, the software will not know the data is different from the part. Reading the registers or copying

EEPROM values to the volatile registers is recommended before any change.

bq77910AEVM SLUU855–February 2012

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Texas Instruments bq77910AEVM Specifications

General

Type	Evaluation Module
Part Number	bq77910AEVM
Battery Chemistry	Li-ion
Manufacturer	Texas Instruments
Operating Temperature Range	-40°C to 85°C
Description	Evaluation Module for bq77910A Battery Protection IC
Function	Battery Protection
Number of Series Cells	up to 10
Protection Features	Overvoltage