Datasheet

Operation

www.ti.com

6.2 Setting Programmable bq27531 Options

The bq27531 data flash comes configured per the default settings detailed in the bq27531 data sheet.

Ensure that the settings are correctly changed to match the pack and application for the bq27531 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 (Figure 10).

Figure 10. Data Flash Screen

To read all the data from the bq27531 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 bq27531 using the | Write All |

button.

The module calibration data is also held in the bq27531 data flash.

The bq27531 allows for an automatic data-flash export function, similar to the DataRAM logging function.

This feature, when selected via | Options | Auto Export |, exports Data Flash to a sequential series of files

named as FilenameNNNNN.gg where N = a decimal number from 0 to 9.

The AutoExport interval is set under the | Options menu | with a minimum value of 15 s. The AutoExport

filename also is set under the | Options menu |.

bq27531EVM with bq27531 Battery Management Unit Impedance Track™ SLUUA90–April 2013

Fuel Gauge and bq24192 4.5-A, Switch-Mode Battery Charger for Single-Cell

Submit Documentation Feedback

Applications