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CC2530 检测电池电压问题

liang deng2
Prodigy 10 points


我用

uint8 get_power_adc(void)
{
ADCCON3 = 0x0F;
while (!(ADCCON1 & 0x80));

return ADCH;
}

当输入电压小于等于2.8V时这个值一直是1F， 而且电压越小ADCH值越大，这是什么原因啊，求助！！！