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Dragging the splitter bar (line that separates the Flags/Status data from Data Ram register values)
changes the height of the Flags/Status Data display. Selecting | View |, then | Auto Arrange | returns the
splitter bar to its original location.
7.2
Setting Programmable bq27520 Options
The bq27520 data flash comes configured per the default settings detailed in the bq27520 data sheet.
Ensure that the settings are correctly changed to match the pack and application for the bq27520 solution
being evaluated.
IMPORTANT: The correct setting of these options is essential to get the best performance.
The settings can be configured using the Data Flash screen
To read all the data from the bq27520 data flash, click on menu option | Data Flash | Read All |.
To write to a data flash location, click on the desired location, enter the data and press <Enter>, which
writes the entire tab of flash data, or select menu option | Data Flash | Write All |. The data flash must be
read before any writes are performed to avoid any incorrect data being written to the device.
The | File | Special Export | menu options allows the data flash to be exported, but it configures the
exported data flash to a learned state ready for mass production use.
The data-flash configuration can be saved to a file by selecting | File | Export | and entering a file name. A
data-flash file also can be retrieved in this way, imported, and written to the bq27520 using the | Write All |
button.
The module calibration data is also held in the bq27520 data flash.
SLUU426 – June 2010
Figure 8. Data Flash Screen
bq27520EVM With System-Side, Single-Cell Impedance Track™ Technology
Copyright © 2010, Texas Instruments Incorporated
(Figure
8).
Operation
11
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