5
2.4
USB Module
The GTT480272A-USB offers a single USB interface for easy connection to a host computer. This simple
but common protocol can be accessed using the on board mini B style USB connector as outlined below.
2.4.1
Recommended Parts
Figure 7: Mini-B USB Cable
(EXTMUSB3FT)
The External Mini USB Cable is recommended for the GTT480272A-USB
display. It will connect to the miniB style header on the unit and provide a
connection to a regular A style USB connector, commonly found on a PC.
2.4.2
USB Connections
The USB connection is the quickest, easiest solution for PC development. After driver installation, the
GTT480272A-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 GTT480272A-USB please read below.
1.
Set the Protocol Select jumpers.
USB: The GTT480272A-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 the USB
protocol. Protocol Select jumpers on the USB model cannot be moved.
2.
Make the connections.
Plug the mini-B header of your external mini USB cable into your GTT480272A-USB and the
regular USB header into your computer USB jack.
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 uProject or hyperterminal 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
linked in the Application Notes Section of this manual.
