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您好,有更换个晶振试试吗?晶振的匹配电容值合适吗?
上电期间,复位信号应该是由低到高的,当电源都上电起来稳定之后,再将reset拉高,用示波器测量下时序呢。
然后复位信号拉高之后,晶振由起振变为不起振了是吗?