Operation
8
Operation
This section details the operation of the bq3050 EVSW software.
NOTE:
The EV2300 driver does not support Windows Sleep or Hibernate states. If communicating
with the EV2300 or the EVM presents a problem, unplug the USB cable and then plug it
back in. If the problem continues, determine if the EVM is in Shutdown mode. The bq3050
can be awakened by momentarily pressing SW2 if cell voltage is present.
8.1
Starting the Program
With the EV2300 and the bq3050EVM connected to the computer, run bq3050 EVSW from the Desktop
Icon or Start | All Programs | Texas Instruments | bq Evaluation Software menu sequence. The SBS Data
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 via the Options and Set Scan Interval menu selections. The
range for this interval is 0 ms to 65535 ms. Only items that are selected for scanning are scanned within
this period.
The bq3050 EVSW provides a logging function that logs the values that were last scanned by EVSW. To
enable this function, click 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 interval is specified under the Options menu with the maximum value of 65535 ms. The Log
interval cannot be smaller than the scan interval because this results in the same value being logged at
least twice.
Figure 10. SBS Data Screen
This screen shows the SBS data set along with additional ManufacturersAccess() command information,
such as individual cell measurements. Additional Flag and Static data can be viewed by selecting the
appropriate tab at the bottom of the SBS screen.
12
bq3050EVM SBS 1.1 Compliant Advanced Gas Gauge Battery Management SLUU532A
–
November 2011
–
Revised December 2011
Solution EVM
Copyright
©
2011, Texas Instruments Incorporated
