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TMP451EVM: TMP451 EVM cannot connect to PC

Part Number: TMP451EVM
Other Parts Discussed in Thread: TMP451, USB2ANY, MSP430F5528


Issue description: 

TMP451 EVM can not connect to PC. The GUI Version is 1.0.1.when we plug EVM to PC .D3 Green LED is turn on. I check the 3.3V is OK.

The Gui always show 3.3V but Failed to connect. Could you help this issue? thanks.