Atmel AT43DK355, Руководство пользователя, Страница: 13 / 31

AT43DK355 USB Controller Dev. Kit User Guide 3-1
3429C–USB–7/04
Section 3
Hardware Description
The following hardware description explains the Development Board in detail. The
Development Board schematic can be found in Section 6.2.
Figure 3-1. Simple Block Diagram of the DK355 Board
3.1 LEDs (LD0 to
LD7)
The AT43DK355 Development Kit includes 8 green LEDs. The anode pin of each LED
is connected to the VBUS, through a resistor.
3.2 5x2 Header JP14
Each pin of this header is connected to the cathode pin of each LED. To turn on the
LED, JP14 is pulled low.
3.3 8 DIP Switch
SW1
Positioning a switch to ON causes the corresponding SWx pin on JP16 to be pulled low
while releasing it will result in a high impedance state.