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C10
100nF
C8
100nF
VCC-5V
VCC-5V
VCC-5V
RX-LED
TX-LED
PC2
PC3
RX-MCU
TX-MCU
VCC-FTDI
D2
MBRS140T3
FP1
FERRITE
VCC-3.3V
LD2
LD3
R57
2K2
R58
2K2
RX
TX
1
2
3
4
VCC
GND
D-
D+
CN3
USB B
TXD
DTR#
RTS#
VCCIO
RXD
RI#
GND
NC
DSR#
DCD#
CTS#
CBUS4
CBUS2
CBUS3
CBUS0
CBUS1
OSCO
OSCI
TEST
AGND
NC
GND
GND
VCC
RESET#
3V3OUT
USBDM
USBDP
FT232RL
U2
FT232RL
VCC-USB
USBDP
USBDM
J2
J3
D
AT
A BUS
C5
100nF
C9
100nF
E3
10uF
VCC-3.3V VCC-FTDI
VCC-FTDI
4. USB-UART
Figure 4-2:
USB-UART schematics
Fast on-board
FTDI® chip
allows you to communicate
with a PC or other UART devices using USB-UART connection.
USB-B connector (
CN3
) is used for connecting the USB cable. RX
(receive) and TX (transmit) LEDs will indicate communication status.
Before conecting the board with the PC, make sure to have the
appropriate
FTDI drivers
installed on your operating system.
Drivers can be found at following URL:
Figure 4-1:
USB-UART connected
http://www.ftdichip.com/Drivers/VCP.htm
