Reset the SOC counter after connecting a charging battery

Hi,

I'm working on a project using the DA14681 chip with the SDK_BTLE_v1.0.8.1050.1.

We use a system that disconnect the battery when the product is not used. The battery is connected on button press or when the USB cable is connected.

We have an issue when we start by connecting the USB cable , because the Dialog start before the battery switch is activated.

So when it initialize, the SOC value is set to 0. And then it is not updated. The battery is correctly charging but the SOC value is not updated with the correct value.

I tried to add an update of the SOC value by using the read done in the init function :

int16_t socf_reset_soc(void)
{
int64_t active_count;
uint64_t active_period;
int32_t current;
int16_t now_voltage;
active_period = SOCF_GET_DURATION(socf_pre_sample_time,
socf_start_count_time);
如果(active_period < 10) {
hw_cpm_delay_usec((10 - active_period) * 1000);
socf_pre_sample_time = rtc_get_fromISR();
active_period = SOCF_GET_DURATION(socf_pre_sample_time,
socf_start_count_time);
}
active_count = socf_get_count(true);
current = socf_get_avg_current(active_count, active_period);
now_voltage = (socf_vbat_via_adapter() + socf_vbat_via_adapter()
+ socf_vbat_via_adapter()) / 3;
socf_soc = socf_get_soc_vbat_ibat(now_voltage, current, vol_dis_low, vol_dis_high);
socf_accum_charge_count = SOCF_SOC_TO_COUNT(socf_soc);
}


I still have a problem because when I call this function the battery is already charging. So the estimated percentage is not correct as the charger is active.

Is there an other way to update the SOC value if the battery is connected after system initialization ?

Is it possible to stop and start the charge process with the SDK ? (Can we use hw_charger_stop_charging and hw_charger_start_charging directly ?)

Joffrey