Board: STEVAL-3DP001 3D Printer Board;
ISSUE: Use a GUI with virtul com port cann't connect the board;
via serial port is possible with ST-LINK on the 3D printer board,
the ST-LINK driver installed,Virtul com port recognized on PC;
the virtual com port associated with ST-LINK settings is ok;
WIN7 system,have updataed;
the board power is ok;
who can help me to change it, thanks...