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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