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Fusion Digital Power Designer无法找到硬件



在使用Fusion Digital Power Designer无法找到硬件并出现一个对话框(如下),请问是什么原因?谢谢!

An error occured while trying to detect a PMBus device. The error was:

can not read CMDS_DCDC_PAGED from DC-DC @ Address 97d: NACK 在 TIDP.PMBus.Parts.UCD3000ISO1.d.b.f(c A_0) 在 TIDP.PMBus.Parts.UCD3000ISO1.d.a.b() 在 TIDP.PMBus.Parts.UCD3000ISO1.d.ag6(i A_0) 在 TIDP.PMBus.am.c(CommandID A_0) 在 TIDP.PMBus.am.ag7(Boolean A_0) 在 TIDP.PMBus.ag.a(Byte A_0, PartID A_1, Boolean A_2, i A_3) 在 TIDP.PMBus.ag.ax2(SMBusAdapter A_0, Byte A_1, PartID A_2, String A_3) 在 TIDP.PMBus.Parts.UCD3000ISO1.a..ctor(SMBusAdapter A_0, Byte A_1, UCD3000ISO1SetupID A_2, Boolean A_3, a A_4, String A_5, MemorySize A_6) 在 TIDP.PMBus.Parts.UCD3000ISO1.a.a(SMBusAdapter A_0, Byte A_1, PartID A_2, String A_3) 在 TIDP.PMBus.ag.a(q A_0, IEnumerable`1 A_1, a A_2) 在 TIDP.PMBus.ag.a(e A_0) 在 TIDP.PMBus.WinForms.Forms.a.m2()

Please check your device firmware, power, and USB connection.