Mouse cursor moves automatically

[FreKa]

Hello, I do my first steps with LPCExpresso55S69. When I connect the USB cable of the LPCExpresso55S69 board to my notebook and the demo program starts running, the mouse pointer automatically moves in a rectangle on the screen. If I plugged the USB cable out, the cursor stopps. Who can help in this problem ? What can I do ?

[ErichStyger]

do not plug in the board on the device USB port. Use the debug USB (label Debug Link) port instead.

[ErichStyger]

That's probable the USB HID (Mouse) program running on that board. The demo emulates a mouse and moves the cursor in a rectangle around.

[FreKa]

Ok, I thought the demo programme only concerned the LED and the buttons. How can I stop it so that I can load my own programmes ? When the cursor is moving it is hardly possible.