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仿真器提示:security fuse has been blown

Other Parts Discussed in Thread: MSP430F149

msp430f149  平台CCS6.1  仿真器fet430uif

当仅用仿真器供电,断开大功率网口芯片,且提供下载时,能正常工作。当外部供电,未接大功率网口芯片,提示:security fuse has been blown。

接上大功率网口芯片,用仿真器下载时,仿真器提示security fuse has been blown。

这是什么原因?会不会是我用了一个网口芯片功耗太大了132mA。还是电源不能兼容?

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