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电源管理芯片:UCD9222结合UCD7242 输出电压1v,当跑程序的时候,输入电压会掉到0v 求助!

Other Parts Discussed in Thread: UCD9222, UCD7242

我用电源管理芯片“UCD9222”结合“UCD7242”给两个DSP——C6678的内核供电(0.9v-1v)。

现象:板子上电后UCD7242输出电压正常(1v),DSP仿真器(xds1000v2)也能连接上,但是用ccs5.1跑程序的时候,核电压1.0就会掉下来,变为0v。

请问,有人遇到过这种情况吗?求帮助!