Datasheet
page 25
v7
USB device
EasyPIC Fusion
™
v7 also contains USB DEVICE connector (CN26) which enables microcontrollers that support USB communication to
establish a connection with the target host (eg. PC, Laptop, etc). It lets you build a slave USB device (HID, Composite, Generic, etc.).
Connector supports USB Standard Type B plug. Detection whether USB device is connected to HOST can be done through VBUS line.
This line is connected directly to microcontroller pin. When connected to HOST, dedicated amber-colored power LED will light up as well.
This VCC line cannot be used for powering the board. It's only used for detecting connection.
1
2
3
4
VCC
GND
D-
D+
CN26
USB B
R50 27
R53 27
LD76
R58
4K7
GND
GND
USB-D_N
USB-D_P
US B DEV ICE
CONNECTOR
USB-VBUS
R48 220
ON
D2
BAT43
D_N
D_P
DATA BUS
communication
Figure 11-1: USB device connection schematic