Powering STK200 Board
The AVR Dragon is self-powered from USB bus, and in most circumstance it
can also be used to power the STK200 board using the two wires supplied.
Unless you add extra circuitry, the STK200 board will draw less than the
100mA that the USB can supply.
If you have any doubts about your USB, then do not power the board from
AVR Dragon. The alternative is to connect a power supply to the power
connector on the STK200 board.
•
2.1mm
barrel
connector
•
Centre positive or negative
•
9-15VDC or 6-12VAC
The AVR Dragon has a 6-way connector marked VCC and GND, next to
JTAG connector. It has 3 VCC and 3 GND pins. Connect the green wire
supplied to one of the GND pins, and the red wire to one of the VCC pins.
All the port headers on the STK200 board also have a GND and VCC pin. It
does not matter which header you use but Port A is most convenient. Connect
the green wire to GND pin on Port A header (inside) and red wire to VCC pin
(outside).
Side Note:
There are also VCC and GND pins on 14-way LCD header on
STK200 board, if it is easier to use these instead in your setup. GND wire can
be omitted as JTAG or ISP headers have GND line connected already but
board will only be powered if cable is left connected.
This picture shows the completed connections.
STK200
Board Power
Connection
STK200
Board Power
from AVR
Dragon
