Human interface on EVK1100:
- Led 0 is on when USB line is in IDLE mode, and off in SUSPEND mode
- Led 1 blinks when USB host has checked and enabled CDC interface
- Led 2 is on when the COM is open by USB Host
- Led 4 green is on during data transfer from CDC to UART
- Led 5 green is on during data transfer from UART to CDC
- Led 4 red means an frame error on UART
- Led 5 red means an overflow
1.8.5