file:///C:UsersAdministratorAppDataRoamingTencentUsers1121472259QQWinTempRichOleD}J7J668H1A9L%33W5BCZD3.pngfile:///C:UsersAdministratorAppDataRoamingTencentUsers1121472259QQWinTempRichOleD}J7J668H1A9L%33W5BCZD3.pngfile:///C:UsersAdministratorAppDataRoamingTencentUsers1121472259QQWinTempRichOleD}J7J668H1A9L%33W5BCZD3.png芯片接3.3V的引脚全有3.3V，为啥晶振引脚没有电压
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