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- #pragma once
- #include <stdint.h>
- #include <stdbool.h>
- #define BQ27220_ERROR 0x0
- #define BQ27220_SUCCESS 0x1
- typedef struct {
- // Low byte, Low bit first
- bool DSG:1; // The device is in DISCHARGE
- bool SYSDWN:1; // System down bit indicating the system should shut down
- bool TDA:1; // Terminate Discharge Alarm
- bool BATTPRES:1; // Battery Present detected
- bool AUTH_GD:1; // Detect inserted battery
- bool OCVGD:1; // Good OCV measurement taken
- bool TCA:1; // Terminate Charge Alarm
- bool RSVD:1; // Reserved
- // High byte, Low bit first
- bool CHGINH:1; // Charge inhibit
- bool FC:1; // Full-charged is detected
- bool OTD:1; // Overtemperature in discharge condition is detected
- bool OTC:1; // Overtemperature in charge condition is detected
- bool SLEEP:1; // Device is operating in SLEEP mode when set
- bool OCVFAIL:1; // Status bit indicating that the OCV reading failed due to current
- bool OCVCOMP:1; // An OCV measurement update is complete
- bool FD:1; // Full-discharge is detected
- } BatteryStatus;
- typedef struct {
- // Low byte, Low bit first
- bool CALMD:1;
- bool SEC0:1;
- bool SEC1:1;
- bool EDV2:1;
- bool VDQ:1;
- bool INITCOMP:1;
- bool SMTH:1;
- bool BTPINT:1;
- // High byte, Low bit first
- uint8_t RSVD1:2;
- bool CFGUPDATE:1;
- uint8_t RSVD0:5;
- } OperationStatus;
- /* Initialize Driver */
- void bq27220_init();
- /* Get battery voltage in mV or error */
- uint16_t bq27220_get_voltage();
- /* Get current in mA or error*/
- int16_t bq27220_get_current();
- /* Get battery status */
- uint8_t bq27220_get_battery_status(BatteryStatus* battery_status);
- /* Get operation status */
- uint8_t bq27220_get_operation_status(OperationStatus* operation_status);
- /* Get temperature in units of 0.1°K */
- uint16_t bq27220_get_temperature();
- /* Get compensated full charge capacity in in mAh */
- uint16_t bq27220_get_full_charge_capacity();
- /* Get remaining capacity in in mAh */
- uint16_t bq27220_get_remaining_capacity();
- /* Get predicted remaining battery capacity in percents */
- uint16_t bq27220_get_state_of_charge();
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