上周加了锂电，这周就得给它充电。
看了下MAX14690的PDF里边有如下说明：
- Smart Power Selector
- The smart power selector seamlessly distributes power
- from the external CHGIN input to the battery (BAT) and
- the system (SYS). With both an external adapter and
- battery connected, the smart power selector basic
- functions are:
- ● When the system load requirements are less than the
- input current limit, the battery is charged with residual
- power from the input.
- ● When the system load requirements exceed the
- input current limit, the battery supplies supplemental
- current to the load.
- ● When the battery is connected and there is no
- external power input, the system is powered from the
- battery.
PDF的截图：
可见，如果负载的耗电小于输入电流的限制，那么自动从输入口充电池。
在mbed方面，直接把库那个resetToDefaults给调一下就行：
- void MAX14690::resetToDefaults()
- {
- intEnThermStatus = false;
- intEnChgStatus = false;
- intEnILim = false;
- intEnUSBOVP = false;
- intEnUSBOK = false;
- intEnChgThmSD = false;
- intEnThermReg = false;
- intEnChgTimeOut = false;
- intEnThermBuck1 = false;
- intEnThermBuck2 = false;
- intEnThermLDO1 = false;
- intEnThermLDO2 = false;
- intEnThermLDO3 = false;
- iLimCntl = ILIM_500mA;
- chgAutoStp = true;
- chgAutoReSta = true;
- batReChg = BAT_RECHG_120mV;
- batReg = BAT_REG_4200mV;
- chgEn = true;
- vPChg = VPCHG_3000mV;
- iPChg = IPCHG_10;
- chgDone = CHGDONE_10;
- mtChgTmr = MTCHGTMR_0min;
- fChgTmr = FCHGTMR_300min;
- pChgTmr = PCHGTMR_60min;
- buck1Md = BUCK_BURST;
- buck1Ind = 0;
- buck2Md = BUCK_BURST;
- buck2Ind = 0;
- ldo2Mode = LDO_DISABLED;
- ldo2Millivolts = 3200;
- ldo3Mode = LDO_DISABLED;
- ldo3Millivolts = 3000;
- thrmCfg = THRM_ENABLED;
- monRatio = MON_DIV4;
- monCfg = MON_PULLDOWN;
- buck2ActDsc = false;
- buck2FFET = false;
- buck1ActDsc = false;
- buck1FFET = false;
- pfnResEna = true;
- stayOn = true;
- }
从上面可见，充电限制为500ma
以下是mbed的截图：
但是我做了下实验我用稳压电源接入5V电压，由于我的电池充足所以没任何动作，等用一段时间电池再说吧
本帖最后由 ddllxxrr 于 2017-7-29 09:51 编辑
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