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The bq28400 data flash is configured per the default settings detailed in the bq28400 data sheet
(SLUSA61A). Ensure that the settings are correctly changed to match the pack and application for the
bq28400 solution being evaluated.
Use the Data Flash screen
To read all of the data from the bq28400 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 click Enter, which writes
the entire tab of flash data, or select the 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 allow 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 bq28400 using the | Write All
| button.
SLUU494 – February 2011
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(Figure
11) to configure the settings.
Figure 11. Data Flash Screen, 1st Level Safety Class
bq28400EVM-001 SBS 1.1 Compliant Tablet PC and Netbook 2-Series Cell
© 2011, Texas Instruments Incorporated
Li-Ion Battery Gas Gauge and Protection
Operation
15
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