Quark SE C1000 Accelerometer Tutorial can't work

Version 2

    As title, my ISSM serial port window just display "CCCCC?", it can't display "X, Y, Z value".

     

    I followed this URL --> Intel® Quark™ SE Microcontroller C1000 Developer Kit - Accelerometer Tutorial | Intel® Software Intel® Quark™ Microcontrollers