MTK Android Driver :battery电池曲线
1.配置文件位置:
CUSTOM_KERNEL_BATTERY= battery
mediatekcustom\kernelatteryatterycust_battery.h
mediatekcustom\kernelatteryatterycustom_fuel_gauge.h
2.充电常用参数修改:
..mediatekcustom\kernelatteryatterycust_battery.h
充电电流修改:
#defineUSB_CHARGER_CURRENT Cust_CC_550MA // :Cust_CC_450MA
#define AC_CHARGER_CURRENT Cust_CC_800MA // : Cust_CC_650MA
充电电阻设定(根据硬件的bom):
#defineR_CURRENT_SENSE 2 //0.2 Ohm// 0.2欧姆
充电温度检测设定
#defineBAT_TEMP_PROTECT_ENABLE 1 //
// #defineBAT_NTC_TSM_1
NTC修改为10K电阻或者47K电阻(NTC 为电池温度保护NegativeTemperature Coefficient)
#define BAT_NTC_101 //#define BAT_NTC_47 0
其他:
#defineV_CHARGER_MIN 4400 //modify //4400 // 4.4 V
#defineV_CHARGER_ENABLE 1 //1:ON , 0:OFF //
3.充电界面显示修改:
mediatekcustom\lkinclude argetcust_display.h//坐标
mediatekplatformmt6577lkmt_logo.c//显示
4.电池容量、电池曲线修改:
电池容量修改:
mediatekcustom\kernelatteryatterycustom_fuel_gauge.h
#define Q_MAX_POS_50 ((2168* 1316) / 1307)
#define Q_MAX_POS_25 2168
#define Q_MAX_POS_0 ((2168 * 1220) / 1307)
#define Q_MAX_NEG_10 ((2168 * 1162) / 1307)
#define Q_MAX_POS_50_H_CURRENT ((2168 * 1295) / 1307)
#define Q_MAX_POS_25_H_CURRENT ((2168 * 1270) / 1307)
#define Q_MAX_POS_0_H_CURRENT ((2168 * 1102) / 1307)
#define Q_MAX_NEG_10_H_CURRENT ((2168 * 599) / 1307)
电池曲线集成方式:(电压-百分比对应表需要电池厂商提供)
mediatekcustom\kernelatteryatterycust_fuel_gauge.h
BATTERY_PROFILE_STRUCbattery_profile_t1[] =// T1 0C
BATTERY_PROFILE_STRUCbattery_profile_t2[] =// T2 25C