hi all，
我用MSP430F5529 BSL 存在 USB无法识别 ，有时候能识别，大部分无法识别有效设备，不稳定，这种概率发送的概率大概再3% ，（100片有2-3片）.
我排除了接触不良的情况，这种问题如何定位？ 会是阻抗匹配的问题吗？ 紧急请求帮助！
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