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TPS65217C电池供电正常,AC/USB供电没有输出



TPS65217C电池供电正常,AC/USB供电没有输出,此时测得SYS1.34V。CPU用的AM335X。另外AC和电池 同时供电时,电压输出也是正常,SYS电压是5V,此时去掉电池,工作正常。但断电重启后SYS还是1.34V.