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F28027PT的Launchpad V1.0,原理图中U5，U7旁边的0欧电阻是什么作用？

Tong Yao
Prodigy 140 points


F28027PT的Launchpad V1.0,原理图中U5，U7旁边的0欧电阻R16, R18, R19, R20, R21, R25, R28, R30, R32是什么作用？板子上好像没有这几个电阻。请高手指导，谢谢哈。