Operation
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SLUUBI1A–October 2016–Revised July 2018
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bq34110EVM-796 Evaluation Module
3.3.3 Current Calibration
The gauge offers CC Offset and Board Offset calibration options to zero any residual current that may be
reported by the gauge. These calibrations are only required if the gauge does not report 0-mA current
when no current should be present.
• Select the CC Offset calibration option.
• Press the Calibrate Gas Gauge button to calibrate.
• Verify whether the current reports 0 mA. Proceed with the Board Offset Current calibration if current is
reported.
• Select the CC Offset calibration option.
• Press the Calibrate Gas Gauge button to calibrate.
• Verify whether the current reports 0 mA.
• Connect a 2-A load from BAT+ to PACK–.
• Enter –2000 in the Applied Current field and select the Calibrate Current box.
• Press the Calibrate Gas Gauge button to calibrate.
• Deselect the Calibrate Current box after current calibration has completed.
3.4 Programming Screen
Press the Programming button to select the Programming Update window (Figure 5). This window allows
the user to import the device firmware.
Figure 5. Programming Screen
3.4.1 Programming the Flash Memory
The Programming screen is used to initialize the device by loading the default .srec into the flash memory
(see Figure 5).
• Search for the .srec file using the Browse button.
• Press the Program button and wait for the download to complete.
• Press the Execute FW button after the programming has been completed.
– Press the Read Srec button to save the flash memory contents to the file. Wait for the download to
complete.
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