OLIMEX© 2012
AVR-ISP-MK2 user's manual
5.4 LEDs explained
There are two 3mm LEDs – ORANGE and a double colored GREEN/RED.
Green – when GREEN LED is on – USB connection is active
Green – GREEN LED on and RED blink - USB connection active and programming activity
(erasing, flashing, programming) – unless TARGET is on
Orange – when ORANGE LED is off - TARGET jumper is in position OFF
Orange – ORANGE LED on - TARGET jumper is in position on, BLINK means programming
activity (erasing, flashing, programming)
After firmware change the LEDs might act in different way:
Orange – turns on during programmer initialization and after that turns off; flashes when target
operation is performed – read//write
Red – turns on after successful USB initialization
Page 15 of 19
