Operation
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7
Operation
This section details the operation of the bq27520 EVSW software.
7.1
Starting the Program
Run bq27520 EVSW from the Start | Programs | Texas Instruments | bq Evaluation Software menu
sequence. The DataRAM screen (
) appears. Data begins to appear once the <Refresh> (single
time scan) button is clicked, or when the <Keep Scanning> check box is checked. To disable the scan
feature, deselect <Keep Scanning>.
The continuous scanning period can be set with the | Options | and | Set Scan Interval | menu selections.
The range for this interval is 0 ms to 65,535 ms. Only items that are selected for scanning are scanned
within this period.
The bq27520 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.
10
bq27520EVM With System-Side, Single-Cell Impedance Track™ Technology
SLUU426 – June 2010
Copyright © 2010, Texas Instruments Incorporated
