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Operation
The bq27620 EVSW provides a logging function which logs the values that were last scanned by EVSW.
To enable this function, select the Start Logging button; this causes the Keep Scanning button to be
selected. When logging is stopped, the Keep Scanning button is still selected and has to be manually
unchecked.
The logging intervals are specified under the | Options | menu with the maximum value of 65,535 ms. The
Log interval cannot be smaller than the scan interval because this results in the same value being logged
at least twice.
Figure 7. DataRAM Screen
This screen (
) shows the RAM data set. Additional Flag and Status data can be viewed at the
bottom of the DataRAM screen.
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.
8.2
Setting Programmable bq27620 Options
The bq27620 data flash comes configured per the default settings detailed in the bq27620 data sheet.
Ensure that the settings are correctly changed to match the pack and application for the bq27620 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 (
).
10
bq27620 EVM: Single-Cell Impedance Track Technology
SLUU655
–
October 2011
Copyright
©
2011, Texas Instruments Incorporated