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430 launchpad坏了

Other Parts Discussed in Thread: TUSB3410, MSP430F1612, MSP-EXP430G2

有一个MSP-EXP430G2的板子,调试的时候我手碰到了J4接口的位置,然后IAR的debug就中断了,电脑提示发现一个未知设备,上网查了说是静电保护的芯片坏了,我看了一下原理图,拆掉这个期间没什么影响,拆了仍然是未知设备,然后我又更换了TUSB3410也不行,最后我用示波器看了一下MSP430F1612的晶振,竟然没波形,估计是这个坏了,我该怎么办