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bq76pl455a返回电压数据的问题



2个问题,(1)这个附加位的值是什么?有规律吗?

(2)技术手册里说是14位ADC,输出电压数据位14位+2个附加位。然后软件指导书(slva617a)里给的例子中,计算电压值时又把返回的16位电压值全部参与计算,这样不矛盾吗?