FDI uEZGUI-EXP1 User manual

µEZGUI User’s Manual
Covers the following products:
uEZGUI-EXP1
Copyright ©2014, Future Designs, Inc., All Rights Reserved

Table of Contents
Introduction _________________________________________________________________ 1
Functional Description _________________________________________________________ 1
Expansion Board Capabilities ____________________________________________________ 1
Orderable part numbers ________________________________________________________ 1
Expansion Connector __________________________________________________________ 1
Expansion Connector Cable Details _______________________________________________ 3
DC Power Input –P4 ___________________________________________________________ 3
USB Device –P1 ______________________________________________________________ 3
USB Host –P2 ________________________________________________________________ 4
Ethernet –J2 _________________________________________________________________ 4
Supported uEZGUIs____________________________________________________________ 4
Serial Port –P3 _______________________________________________________________ 5
Example Connections to the uEZGUI Boards ________________________________________ 5
Information in this document is provided solely to enable the use of Future Designs products. FDI assumes no
liability whatsoever, including infringement of any patent or copyright. FDI reserves the right to make changes to
these specifications at any time, without notice. No part of this document may be reproduced or transmitted in
any form or by any means, electronic or mechanical, for any purpose, without the express written permission of
Future Designs, Inc. 996 A Cleaner Way, Huntsville, AL 35805.
For more information on FDI or our products please visit www.teamfdi.com.
NOTE: The inclusion of vendor software products in this kit does not imply an endorsement of the product by
Future Designs, Inc.
2014 Future Designs, Inc. All rights reserved.
uEZ® is a registered trademark of Future Designs, Inc.
Other brand names are trademarks or registered trademarks of their respective owners.
FDI PN: MA00030
Revision: 2.0, 08/13/2014
Printed in the United States of America

1
Introduction
The uEZGUI-EXP1 is a quick and easy solution for adding additional hardware to the uEZGUI family of products. The
uEZGUI-EXP1 offers the hardware necessary for USB Host and Device, Ethernet, RS232, and RS485.
Functional Description
RS232/RS485 Serial communication
USB Host and Device
10/100 Ethernet
Expansion Board Capabilities
The uEZGUI Expansion Board enhances the capabilities of the standard uEZGUI board to include additional IO
capabilities. The Expansion Board is connected to the uEZGUI main board via a 50pin FPC cable.
Orderable part numbers
The uEZGUI-EXP1 is available by itself, or as part of the uEZGUI-43-H01 production module.
Please see FDI’s website for the latest purchasing and distributor information.
Expansion Connector
FDI’s uEZGUIs include a 50 pin FPC Expansion Connector that provides a wide variety of capabilities for user expansion,
ranging from 10/100 Ethernet to USB Host, etc. The part number used for the FPC connector is OMRON XF2M-5015-1A.
The table below provides the pin out and signal used on the uEZGUI-EXP1: (see the corresponding uEZGUI schematics for
the up-to-date listings of all pin capabilities)

2
Pin #
Pin Name
Pin Description
Input/output
1 –2
3p3 volts (3V3)
3.3 Volts DC Input to EXP1 from uEZGUI
Power
3 –5
5volts (5V0)
5.0 Volts DC Output to uEZGUI
Power
6
USBD_VBUS
VBUS –Monitors the presence of USB bus power. Note: Must be HIGH for USB reset to occur.
(USB Device port on uEZGUI-EXP1)
Input
7
USBD_DM
USB_D-2 –USB port 2 bidirectional D –line (USB Device port on uEZGUI-EXP1)
Input / Output
8
USBD_DP
USB_D+2 –USB port 2 bidirectional D+ line (USB Device port on uEZGUI-EXP1)
Input / Output
9
P0.2_TXD0
TXD0 –Transmitter output for UART0. (for RS232)
Output
10
P0.3_RXD0
RXD0 –Receiver input for UART0. (for RS232)
Input
11
ISP_ENTRY
I/O –P2[10] –General purpose digital input/output pin. Note: LOW on this pin on NXP LPCXXXX
while RESET is LOW forces on-chip boot loader to take over control of the part after a reset.
Input / Output
12
GND
Ground
Power
13
P1.0_ENET_TXD0
ENET_TXD0 –Ethernet transmit data 0 (RMII/MII interface)
Output
14
P1.1_ENET_TXD1
ENET_TXD1 –Ethernet transmit data 1 (RMII/MII interface)
Output
15
P1.4_ENET_TXEN
ENET_TX_EN –Ethernet transmit data enable (RMII/MII interface)
Output
16
P1.8_ENET_CRSDV
ENET_CRS_DV/ENET_CRS –Ethernet Carrier Sense/Data Valid (RMII interface)/ Ethernet Carrier
Sense (MII interface)
Input
17
P1.9_ENET_RXD0
ENET_RXD0 –Ethernet receive data 0 (RMII/MII interface)
Input
18
P1.10_ENET_RXD1
ENET_RXD1 –Ethernet receive data 1 (RMII/MII interface)
Input
19
3p3 volts (3V3)
3.3 Volts DC Input to EXP1 from uEZGUI
Power
20
P1.14_ENET_RX_ER
ENET_RX_ER –Ethernet receive error (RMII/MII interface)
Input
21
P1.15_ENET_REFCLK
ENET_REF_CLK/ENET_RX_CLK –Ethernet Reference Clock (RMII interface)/ Ethernet Receive
Clock (MII interface)
Input
22
GND
Ground
Power
23
P1.16_ENET_MDC
ENET_MDC –Ethernet MIIM clock
Output
24
P1.17_ENET_MDIO
ENET_MDIO –Ethernet MIIM data input and Output
Input / Output
25
Unused
26
Unused
27
RESET_OUT
RSTOUT –This is a 3.3 V pin. LOW on this pin indicates LPC1788 being in Reset state
Output
28
RESET_IN
External reset input: A LOW on this pin resets the device, causing I/O ports and peripherals to
take on their default states, and processor execution to begin at address 0. TTL with hysteresis
Input
29
GND
Ground
Power
30
Unused
31
Unused
32
Unused
33
Unused
34
Unused
35
Unused
36
USB1H_PPWR
USB_PPWR1 –Port Power enable signal for USB port 1. (USB Host port on uEZGUI-EXP1)
Output
37
USB1H_OVC
USB_OVC –Overcurrent detection (USB Host port on uEZGUI-EXP1)
Input
38
USB1H_PWRD
USB_PWRD –5V power detection (USB Host port on uEZGUI-EXP1)
Input
39
USB1_DP
USB_D+1 –USB port 1 bidirectional D+ line. (USB Host port on uEZGUI-EXP1)
Input / Output
40
USB1_DM
USB_D-1 –USB port 1 bidirectional D--line. (USB Host port on uEZGUI-EXP1)
Input / Output
41
GND
Ground
Power
42
P0.15_TXD1
TXD1 –Transmitter output for UART1. (for RS485)
Output
43
P0.16_RXD1
RXD1 –Receiver input for UART1. (for RS485)
Input
44
P0.17_CTS1
CTS1 –Clear to Send input for UART1. (for RS485)
Input
45
P0.22_RTS1
RTS1 –Request to Send output for UART1. (for RS485)
Output
46
Unused
47
Unused
48
Unused
49
Unused
50
GND
Ground
Power

3
Expansion Connector Cable Details
The maximum length for the expansion connector cables is as follows:
General Purpose IO, TTL, Serial, etc = 6” recommended maximum, 8” absolute maximum
Ethernet, high-speed IO, etc = 3” recommended maximum, 4” absolute maximum
The following table provides example part numbers for the expansion cables:
Description
Mfg
Mfg PN
Digi-Key Pn
3” 50-pin 0.5mm
Molex
21020-7650
WM10231-ND
6” 50-pin 0.5mm
Molex
21020-0548
WM10223-ND
Note: These lengths are only recommendations. The actual lengths utilized will be dependent on the expansion board
circuitry, layouts and general environment of the application. It is up to the customer to test and validate the functional
operation and use of the expansion connectors.
DC Power Input –P4
The uEZGUI-EXP1 supports a 7VDC-24VDC 1A (min) Power Supply. The connector is 2.1mm with center positive.
Pin Number
Description
1
7VDC to 24VDC, +/- 10%, 1.0A (min)
2
Power Supply Ground
USB Device –P1
The UEZGUI-EXP1 Board includes one USB Device Interface allowing the unit to be connected to a USB Host, such as a
PC. Through this connection, the uEZGUI represents a peripheral to the USB Host. The operational mode of the port is
dependent on the software utilized (i.e. Mass Storage or Human-Interface).
Note: The USB Device connector of the Expansion Board is connected in parallel to the USB Device connector of the
uEZGUI Main board. To avoid damage or improper operation, do not connect both of these at the same time.
The UEZGUI-EXP1 Board may also be powered via the USB Device connector. Care must be taken to not overload the
USB Host since 500mA is the maximum current allowable via USB.
Pin Number
Description
1
USB 5V
2
D-
3
D+
4
NC
5
Signal Ground

4
USB Host –P2
The uEZGUI-EXP1 Board includes one USB Host Port allowing the unit to interface to various USB peripherals such as a
USB Flash Drive (Thumb Drive). The operational mode of this port is dependent on the software utilized (i.e. driver
support)
Pin Number
Description
1
USB VBus
2
D-
3
D+
4
Signal Ground
Ethernet –J2
The UEZGUI-EXP1 Board includes one 10/100 Ethernet Port to interface to a local area network via CAT5 cable. Please
refer to the specific details of the LPC1788 processor being utilized for support of the Ethernet Port function.
Pin Number
Description
1
Tx+
2
Tx-
3
Rx+
4
75 ohm terminated
5
75 ohm terminated
6
Rx-
7
75 ohm terminated
8
75 ohm terminated
Supported uEZGUIs
The uEZGUI-EXP1 is currently supported on the following uEZGUIs:
uEZGUI-1788-43WQR
uEZGUI-4088-43WQN
uEZGUI-1788-70WVT
uEZGUI-1788-70WVM
uEZGUI-1788-56VI
uEZGUI-RX62N-35QT

5
Serial Port –P3
The uEZGUI-EXP1 Board includes one female DB9 Serial Port Connector. This connector may operate in either RS232 or
RS485 (Full-duplex) interface levels depending on jumper settings of JP1 through JP4.
Jumpers JP1 –JP4 select the operating mode of the serial port;
Jumper 1-2 for RS232 levels, using UART0
Jumper 2-3 for RS485 levels, using UART1
When operating as RS232, the serial port may also be optionally configured to support ISP programming of the LPC1788
using FlashMagic Software. To enable ISP programming, jumper JP6 & JP7 must be loaded. Note that with these jumpers
loaded, operation of the LPC1788 may be affected by the RS232 interface signals. Refer to the FlashMagic user manual
for details.
Pin Number
RS485 Mode
RS232 Mode
1
No Connect
No Connect
2
485_RDB-
TXD (Output)
3
485_TDA+
RXD (Input)
4
Signal Ground
No Connect
5
Signal Ground
Signal Ground
6
Signal Ground
Signal Ground
7
485_RDA+
(OPT) RTS
8
485_TDB-
(OPT) CTS
9
(OPT 5V)
No Connect
Example Connections to the uEZGUI Boards
uEZGUI-1788-43WQR example connection with uEZGUI-EXP1

6
uEZGUI-1788-70WVT example connection with uEZGUI-EXP1
uEZGUI-43-H01 production module: uEZGUI-1788-43WQR with uEZGUI-EXP1 mounted in OEM Housing