For the firmware settings needed for the design
requirements, refer to the BQ27Z558 Technical Reference Manual.
- 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.