Human interface on STK600:
- 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 HID Keyboard interface
- Led 2 displays numeric lock status.
- Led 3 displays caps lock status.
- The switch 0 open a note pad application on Windows O.S. and send key sequence "Atmel AVR USB Keyboard"
- The switch 0 can be used to wakeup USB Host in remote wakeup mode.
Setup for STK600:
- LEDS connector is connected to PORTA
- SWITCHES are connected to PORTB
- Warning! The AREF0 jumper must be removed because AREF0 connected on PORTA0 overrides led 0.
- Warning! The AREF1 jumper must be removed because AREF1 connected on PORTB0 overrides switch 0.
1.8.5