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Using PMBus Interface to UDC92xx from VBA

Hello,

We are trying to interface to a <UCD92xx> board from VBA (Excel).

My understanding is we need to use the Fusion API as it supports PMBus.  It does not appear there is any way to connect via ActiveX to a PMBus class to instantiate an interface.  I think if you provide a type library (.tlb) file I should be able to use the DLL from VBA?  The examples look helpful, but I'm not able to get to the point where I create the Device reference.

We also installed <another> API which allowed us to discover (connect) and dispose (disconnect) of the board via ActiveX, but this <SAA.TIUSBAdapter.asdf??> doesn't appear to allow PMBus.

Could you provide a recommendation on how to proceed?