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求助BQ7692003的连接问题

   我选用的为BQ7692003,控制器用的STM32f030,仿真器选用的为J-LINK,现在出现这么一个问题,就是,BQ7692003未上电的情况下,J-LINK连接仿真都正常,但是当BQ7692003上电(各检测线连接上)的状态下,J-LINK连接不上了控制器STM32f030,这个是什么问题呢?