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AM335x ADC没有使用,相关引脚应该怎么接?



大家好:

如果AM335x ADC没有使用,相关引脚应该怎么接?我看AM335x Schematic Checklist 里写的是都接地,“If ADC is not used...
• Connect all TSC_ADC terminals (VREFP, VREFN, AIN[7:0], VDDA_ADC, and VSSA_ADC) to same ground
as all VSS terminals.
”  VREFP和VDDA_ADC是电源,这个也接地?不会短路吗?

我ADC没使用,目前的做法是VREFP和VDDA_ADC接1.8V,VREFN和VSSA_ADC)接地。AIN[7:0]悬空,这样会有问题吗?