5
2.3
USB Module
The GLK240128-25-USB/GLT240128-USB offers a single USB protocol for easy connection to a host
computer. The simple and widely available protocol can be accessed using the on board mini B style
USB connector as outlined in the USB Connections section.
Recommended Parts
Figure 5: Mini USB Cable
(EXTMUSB3FT)
The External Mini USB cable is recommended for the GLK240128-25-USB
/GLT240128-USB display. It will connect to the mini-B style header on the
unit and provide a connection to a regular A style USB connector, commonly
found on a PC.
USB Connections
The USB connection is the quickest, easiest solution for PC development. After driver installation, the
GLK240128-25-USB/GLT240128-USB will be accessible through a virtual serial port, providing the same
result as a serial setup without the cable hassle. To connect to your GLK240128-25-USB/GLT240128-
USB, please follow the steps below.
1.
Set the Protocol Select jumpers.
USB: The GLK240128-25-USB/GLT240128-USB offers USB protocol only. Model specific
hardware prevents this unit from operating in any other protocol, and does not allow other
models to operate in USB protocol. Protocol Select jumpers on this model cannot be moved.
2.
Make the connections.
Plug the mini-B header of your External Mini USB cable into your GLK240128-25-
USB/GLT240128-USB and the regular USB header into your computer. Additional power may
be required, especially for YG units, and can be supplied to the Alternate Power Connector.
3.
Install the drivers.
a.
Download the latest drivers at
, and save them to a known
location.
b.
When prompted, install the USB bus controller driver automatically
c.
If asked, continue anyway, even though the driver is not signed
d.
When the driver install is complete, your display will turn on, but communication will not yet be
possible.
e.
At the second driver prompt, install the serial port driver automatically
f.
Again, if asked, continue anyway
4.
Create.
Use MOGD# or a terminal program to get started, and then move on with your own
development. Instructions for these programs can be found below and a number of application
notes are available at
