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msp430的pcb板子,段码液晶不知道怎么回事显示有影响

我画了一个板子,用的是内部lcd控制器控制段码液晶显示,不知道为啥老是显示受影响,不该亮的也暗暗地显示,程序绝对没有问题,因为下载到另外一个板子上显示很好,不知道是不是pcb的哪受影响?谢谢