各位，我用内部上下拉浮空实时切换得到3种电平组合判断充电状态，试了下，效果可以暂时没发现什么问题，请大家评审看看
void ChrgPortScan(void)//10ms一次
{
static uchar Seq = 0;
static uchar Cnt_Chrg = 0;
static uchar Cnt_Full = 0;
static uchar Cnt_Null = 0;
PHB2 = 0;//内部上拉
PDB2 = 1;
DelayUs2x(50);
**.RegUp = S_CHRG;
PHB2 = 1;//内部浮空
PDB2 = 1;
DelayUs2x(50);
**.RegFl = S_CHRG;
PHB2 = 1;//内部下拉
PDB2 = 0;
DelayUs2x(50);
**.RegDn = S_CHRG;
if((**.RegUp==0)&&(**.RegDn==0)&&(**.RegFl==0))//充电
{
Cnt_Full = 0;
Cnt_Null = 0;
Cnt_Chrg++;
if(Cnt_Chrg>=2)
{
Cnt_Chrg = 0;
Stat_Chrg = STAT_CHRG;
En.LED_Flk = 1;
MotoSpeed=0;
MOTO_PWM = 0;
En.Led1 = 0;
En.Led2 = 0;
En.Led3 = 0;
}
}
else if((**.RegUp==1)&&(**.RegDn==0)&&(**.RegFl==1))//充满
{
Cnt_Chrg = 0;
Cnt_Null = 0;
Cnt_Full++;
if(Cnt_Full>=3)
{
Cnt_Full = 0;
Stat_Chrg = STAT_FULL;
En.LED_Flk = 0;
RemTime_LED_Flk = 10;
En.Led4 = 1;
En.Led1 = 0;
En.Led2 = 0;
En.Led3 = 0;
MotoSpeed=0;
MOTO_PWM = 0;
}
}
else if((**.RegUp==1)&&(**.RegDn==0)&&(**.RegFl==0))//拔掉
{
Cnt_Chrg = 0;
Cnt_Full = 0;
Cnt_Null++;
if(Cnt_Null>=3)
{
Cnt_Null = 0;
Stat_Chrg = STAT_NULL;
ClrLED();
}
}
// else {Stat_Chrg = STAT_NULL;ClrLED();}
}
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