For the firmware settings needed for the design requirements, refer to the BQ27Z746 Technical Reference Manual (SLUUCA6).
- To change design capacity, set the data flash value (in mAh) in the Gas Gauging: Design: Design Capacity register.
- To set device chemistry, go to the data flash
I2C Configuration: Data: Device Chemistry.
The
BQStudio
software automatically populates the correct chemistry identification. This
selection is derived from using the
BQCHEM
feature in the tools and choosing the option that matches the device chemistry
from the list.
- To set the design voltage, go to Gas Gauging: Design: Design Voltage register.
- To set the
cell
Low Voltage or clear the
cell
Low Voltage, use Settings: Configuration: Init Voltage Low
Set or Clear. This is used to set the cell voltage level that will
set (clear) the [VOLT_LO] bit in the Interrupt Status register.
- To enable the internal temperature and the external temperature sensors: Set Settings:Configuration: Temperature Enable: Bit 0 (TSInt) = 1 for the internal sensor; set Bit 1 (TS1) = 1 for the external sensor.