L M 3 S 3 7 4 8 E V A L U A T I O N K I T
R E A D M E F I R S T
Rev. 1.3
USB Power Mode Switch (SW3)
EVB is Bus Powered
EVB is Self Powered
2)
Using one of the USB cables provided in the kit, connect the mini-b (smaller) end of
the USB cable to the USB debug interface connector labeled “DEBUG USB” on the
EVB.
Note:
If the USB cable is not plugged into the “DEBUG USB” connector, the board
will not be powered and you will not be able to install the FTDI drivers in the next
section.
3)
Connect the other end (Type A) of the USB cable to a free USB port on your host PC.
The PC’s USB port is capable of sourcing up to 500 mA for each attached device, which is
sufficient for the evaluation board.
If connecting the board through a USB hub, it must be a
powered hub.
Installing the FTDI Drivers
The next step is to install the FTDI drivers for the board. Some customers with previous
installations of the FTDI drivers may experience trouble when installing newer (2.02.04 and
later) versions of the drivers. The problem only seems to affect users of Windows XP, and not
Windows Vista. If you have any problems with the driver installation, see the
http://www.luminarymicro.com/ftdi-driver
web site for information.
1)
When you power the EVB using the “DEBUG USB” connector for the first time,
Windows starts the Found New Hardware Wizard and asks if Windows can connect to
Windows Update to search for software. Select “No, not this time” and then click
Next.
2
