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 CDC interface
- Led 2 is on when CDC port is open
- Led 4 is on during data transfer from CDC to UART
- Led 5 is on during data transfer from UART to CDC
- Led 6 signals an frame error on UART
- Led 7 signals an overflow
Setup for STK600:
- LEDS connector is connected to PORTA
- SWITCHES are connected to PORTB
- PC2 (RXC0) is connected to RS232 SPARE RXD
- PC3 (TXC0) is connected to RS232 SPARE TXD
- 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