一次实验时,发现电源供电不正常,在逐步排查过程中,几乎卸掉了DSP28335所有的外围电路,几乎只剩下一个裸露的芯片,但电源仍有问题。我的问题是我是否可以给DSP那几个需要1.9V和3.3V的引脚单独供电,来判断DSP是否烧坏了。给DSP芯片1.9V单独供电时,发现1.9V电源正常,而3.3V电源单独供电时,电流达到了限幅值0.5A。像我这种情况是否可以判定DSP芯片有问题?
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