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MSP430F6659: Can't solve the problem of ''Error connecting to the target''

Part Number: MSP430F6659
Other Parts Discussed in Thread: MSP430F5529

Hi guys,

I am really new to MSP430 series MCU and the 5529 Launchpad, now I am building a circuit that uses the MSP430F6659 as the MCU, but however I can't seem to solve the problem of the connection. 

I am using the 2 wires SBW connection with SWBTDIO  and SWBTCK, after I checked the online posts, I have tried the things like: 

  1. Reinstall the firmware
  2. Change the RST capacitor between 1nF and 2.2nF
  3. Disable the driver in device manager and replug the USB

But it doesnt work anyway, I could measure the voltage across the pins and it seems the voltage supply and the pins are connected to the board but the software can't find the device.

And when I disable the drivers in device manager, the MCU becomes extremely hot really fast when I replug the USB

Anyone has any idea about how to fix it? 

One thing I couldn't try is connect the DVCC2 to the 3v3 supply, and could this be the reason of failure? 

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