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DLPC7540EVM: Interface not detected

Part Number: DLPC7540EVM
Other Parts Discussed in Thread: DLP650TE, DLPC7540,


I have a DLPC7540, a DLP650TE and a power supply and I have plugged them as follows :

I have then plugged my computer, downloaded DLP EVM GUI and DLP650TE firmware.

After powering the circuit as explained in the user's guide, I executed the DLP EVM GUI and this occurs : 

and when I go to "debug", to change the interface from I2C to USB, this appears :

What is happening and what should I do?