FDI uEZGUI-EXP-DK User manual

uEZGUI-EXP-DK
User’s Manual
Copyright ©2013, Future Designs, Inc., All Rights Reserved

Table of Contents
1. Introduction ______________________________________________________________________________ 1
2. Kit Contents ______________________________________________________________________________ 1
3. Functional Description _____________________________________________________________________ 1
4. Requirements_____________________________________________________________________________ 1
5. ESD Warning______________________________________________________________________________ 2
6. Startup Procedure _________________________________________________________________________ 2
7. Mechanical Details ________________________________________________________________________ 2
8. Expansion Board Top Level Mechanical Diagram / Board Layout ___________________________________ 3
9. Expansion Board Functional Block Diagram ____________________________________________________ 4
10. JP23 Setting for LPC based uEZGUIs or RX based uEZGUIs. ________________________________________ 5
11. Expansion Connector pin usage ______________________________________________________________ 5
12. Expansion Connector Cable Details ___________________________________________________________ 7
13. DC Power Input – P8 _______________________________________________________________________ 7
14. USB Host – P3_____________________________________________________________________________ 7
15. USB Device – P4 ___________________________________________________________________________ 8
16. Ethernet – J3 _____________________________________________________________________________ 8
17. Power over Ethernet – SIP1 (optional)_________________________________________________________ 9
18. PMOD – J9 _______________________________________________________________________________ 9
19. Potentiometer – VRES _____________________________________________________________________ 10
20. FET Driver – J10 __________________________________________________________________________ 10
21. DALI – J12 (not loaded by default) ___________________________________________________________ 10
22. RS232 – P5 ______________________________________________________________________________ 11
23. MicroSD – J8_____________________________________________________________________________ 11
24. RS485 – P6 ______________________________________________________________________________ 12
25. CAN – J13_______________________________________________________________________________ 12
26. I2C System – JP13 ________________________________________________________________________ 13
27. Audio System – JP 16 and JP17______________________________________________________________ 14
28. Additional Documentation, Schematics, and Software Updates___________________________________ 14
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.
2013 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: 1.0, 8/08/2013
Printed in the United States of America

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1. Introduction
The uEZGUI-EXP-DK is a quick and easy solution for rapid prototyping additional hardware with the uEZGUI family of
products. The uEZGUI-EXP-DK offers the hardware necessary for many different features.
2. Kit Contents
•uEZGUI-EXP-DK development expansion board
•50 pin Flat Flexible Cable (FFC)
•20 pin Flat Flexible Cable (FFC)
3. Functional Description
•RS232/RS485 Serial communication
•USB Host and Device
•10/100 Ethernet
•Optional Power over Ethernet
•FET driver
•Potentiometer
•Optional DALI
•CAN
•I2S/DAC Audio (not supported on Renesas uEZGUIs)
•Built-in Speaker
•High –Speed 4 bit microSD card(not supported on Renesas uEZGUIs)
•I2C bus expander
•I2C GPIO with pushbuttons and LEDs
•I2C ALS/Proximity Sensor
•70 Pin GPIO Expansion
•Ability to disconnect unused features
4. Requirements
The uEZGUI-EXP-DK comes with the necessary flex cables to begin development right away with the purchase of a
compatible uEZGUI kit. A 7V-24V power supply with a minimum of 1A current will be required to power the
uEZGUI-EXP-DK and connected uEZGUI. At this time, the uEZGUI-EXP-DK’s expansion pin configuration is compatible
with uEZGUIs based on the following microcontrollers:
•NXP LPC1788 (part numbers starting with uEZGUI-1788)
•NXP LPC2478 (part numbers starting with uEZGUI-2478)
•Renesas RX62N (part numbers starting with uEZGUI-RX62N)
With the 70 pin break-out and the ability to cut PCB traces, the uEZGUI-EXP-DK could be re-configured to support future
uEZGUIs, or to swap for the desired pins on existing uEZGUIs. Note that some features of the uEZGUI-EXP-DK will only
work with certain microcontrollers, such as the 4-bit microSD card slot and I2S audio.

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5. ESD Warning
The uEZGUI-EXP-DK is shipped in a protective anti-static package. The device must not be subjected to high electrostatic
potentials. Damage may occur to the board that will not be covered under warranty. General practice for working with
static sensitive devices should be followed when working with the uEZGUI-EXP-DK.
6. Startup Procedure
To get started with the uEZGUI-EXP-DK, please connect the 50 pin and 20 pin FFCs to the uEZGUI as shown. The uEZGUI-
RX62N-35QT does not support the 20 pin expansion. Take care not to damage the FFCs as they are very fragile.
uEZGUI-1788-43WQR with uEZGUI-EXP-DK (revision 1 is shown in this picture)
After connecting the cables, connect a 7V-24V DC power supply (minimum of 1A) to the 2.1mm barrel plug P8 on the
EXP-DK to power on the unit. With uEZ 2.05 or later, the EXP-DK will be auto-detected and the USB ports, Ethernet,
RS232, Audio, and high-speed microSD SD card will be automatically enabled. At this time the high speed microSD card is
only support on LPC1788 uEZGUI units. The out of the box demo does not include the video player. This will need to be
enabled inside of the project’s Config_Build.h file.
7. Mechanical Details
The uEZGUI-EXP-DK has 5 screw mounts that accept #6 size screws. The total board dimensions are 5” x 6”.
Each of the 4 corner screw mounts is centered 0.2” away from each side of the board.

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8. Expansion Board Top Level Mechanical Diagram / Board Layout
Below is the top level mechanical drawing of the uEZGUI-EXP-DK Rev 2 showing all of the part positions and silkscreen:

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9. Expansion Board Functional Block Diagram
The uEZGUI-EXP-DK includes the following features on the specified expansion pins:

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10. JP23 Setting for LPC based uEZGUIs or RX based uEZGUIs.
The jumpers on JP23 are designed to switch the CAN and I2C pins since these are different on the Renesas RX and NXP
LPC uEZGUIs. In positions (3-5, 4-6, 7-9, 8-10) the unit is in NXP mode. In positions (1-3, 2-4, 5-7, 6-8) the unit is in RX
mode.
NXP mode jumper configuration
RX mode jumper configuration
11. Expansion Connector pin usage
The uEZGUI-EXP-DK includes 50 pin and 20 pin FFC Expansion Connectors that connect to the host uEZGUI. The table
below details which pins are used on the EXP-DK and what they are used for by default on the EXP-DK. All of these pins
are brought out to the standard 1/8” header breakout on the EXP-DK for ease of connecting additional hardware.
J1/P1 connectors
Pin
#
Pin Name Function used on EXP-DK
1 Ground (GND) Ground
2
USBID
GPIO input to uEZGUI to detect a USB OTG host adapter cable on P41
3
Unused
Expansion pin not used by EXP-DK
4
DALITXD
DALI transmit output from uEZGUI host unit
5
MCIDAT3
High Speed SD card DAT3
6
MCIDAT2
High Speed SD card DAT2
7
MCIDAT1
High Speed SD card DAT1
8
MCIDAT0
High Speed SD card DAT0
9
FETPWM
PWM or GPIO output from host uEZGUI for FET driver
10
MCICMD
High Speed SD card CMD
11
NXPCANTD
CAN Transmit output from host uEZGUI using LPC1788/LPC2478
12
NXPCANRD
CAN Receive input to host uEZGUI using LPC1788/LPC2478
13
5V
5V power supply to host uEZGUI unit (generated on EXP-DK)
14
Ground (GND)
Ground
15
Unused
Expansion pin not used by EXP-DK
16
Unused
Expansion pin not used by EXP-DK
17
ADC
Used for reading potentiometer into uEZGUI’s ADC
18
Unused
Expansion pin not used by EXP-DK (ADC touch input on resistive touch
19
Unused
Expansion pin not used by EXP-DK (ADC touch input on resistive touch
20
Ground (GND)
Ground

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J2/P2 connectors
Pin
Pin Name
Function used on EXP-DK
1
Ground (GND)
Ground
2
RX62CRX SCL
I2C SCL on NXP uEZGUIs, CAN RX on uEZGUI-RX62N-35QT
3
RX62CTX SDA
I2C SDA on NXP uEZGUIs, CAN TX on uEZGUI-RX62N-35QT
4
RX62SCL_DALIRXD
DALI Receive input, I2C SCL on uEZGUI-RX62N-35QT
5
RX62SDA_MCICLK
High Speed SD card CLK, I2C SDA on uEZGUI-RX62N-35QT
6
485DE
RS485 Data enable input, active high; pin not available on uEZGUI-RX62N-
7
485RE
RS485 Receive enable input, active low; pin not available on uEZGUI-RX62N-
8
485RXD
RS485 RX input to uEZGUI; pin not available on uEZGUI-RX62N-35QT
9
485TXD
RS485 TX output from uEZGUI; pin not available on uEZGUI-RX62N-35QT
10
Ground (GND)
Ground
11
USBHDM
USH Host Port Data Negative
12
USBHDP
USH Host Port Data Positive
13
USBHPWRD
USH Host Port 5V Power, Power output from MIC2025-2YM
14
USBHOVC
USH Host Port Fault Flag input to microcontroller
15
USBHPPWR
USH Host Port Power Enable GPIO input to MIC2025-2YM
16
I2STXSDA MOSI
DACDAT input to I2S audio / SPI MOSI connection on PMOD
17
I2STXWS MISO
DACLRC input to I2S audio / SPI MISO connection on PMOD
18
I2STXCLK SCK
BCLK input to I2S audio / SPI Clock connection on PMOD
19
I2SRXSDA SSEL
ADCDAT input to I2S audio / SPI Select connection on PMOD
20
I2SRXWS
ADCLRC input to I2S audio
21
I2CIRQ
Interrupt input to micro-controller from ALS / Proximity Sensor
22
Ground (GND)
Ground
23
RESETIN
Reset switch and ISP reset input into host uEZGUI micro-controller
24
RESETOUT
Reset output from micro-controller to Ethernet, PMOD, I2C Mux, and I2C
25
AOUT
DAC Output from micro-controller to I2S Audio or (optional) directly to AMP
26
Unused
Expansion pin not used by EXP-DK
27
ENETMDIO
Ethernet PHY MDIO
28
ENETMDC
Ethernet PHY MDC
29
Ground (GND)
Ground
30
ENETREFCLK
Ethernet PHY REFCLK0 (50MHz reference clock from PHY to uEZGUI)
31
ENETRXER
Ethernet PHY RXER / PHYADR0 (address LSB set on PHY reset)
32
3.3V
3.3V power from uEZGUI host unit’s own step down converter
33
ENETRXD1
Ethernet PHY RXD1 / MODE1 (MODE1 input on PHY reset)
34
ENETRXD0
Ethernet PHY RXD0 / MODE0 (MODE0 input on PHY reset)
35
ENETCRSDV
Ethernet PHY CRS DV / MODE2 (MODE2 input on PHY reset)
36
ENETTXEN
Ethernet PHY TXEN
37
ENETTXD1
Ethernet PHY TXD1
38
ENETTXD0
Ethernet PHY TXDO
39
Ground (GND)
Ground
40
IRQ_ISPENTRY
Used for optional ISP Entry to NXP based uEZGUIs, used for IRQ on PMOD
41
RS232RXD
RS232 Port TX
42
RS232TXD
RS232 Port RX
43
USBDDP
USB device port Data Positive
44
USBDDM
USB device port Data Negative
45
USBDVBUS
USB device port 5V power input. Switchable on select uEZGUIs to host power
46
5V
5V power supply to host uEZGUI unit (generated on EXP-DK)
47
5V
5V power supply to host uEZGUI unit (generated on EXP-DK)
48
5V
5V power supply to host uEZGUI unit (generated on EXP-DK)
49
3.3V
3.3V power from uEZGUI host unit’s own step down converter
50
3.3V
3.3V power from uEZGUI host unit’s own step down converter

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12. 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: Molex Inc, Parlex Corp, and Wurth
Electronics, Inc provide compatible cables.
Description Mfg Mfg PN Digi-Key Pn
3.00” 50-pin 0.5mm Molex 21020-7650 WM10231-ND
3.00” 20-pin 0.5mm Molex 21020-0209 WM10226-ND
1.18” 50-pin 0.5mm Molex 21020-3050 WM14323-ND
1.18” 20-pin 0.5mm
Molex
21020-0205
WM14317-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.
13. DC Power Input – P8
The uEZGUI-EXP-DK supports a 7VDC-24VDC 1A (min) Power Supply. The connector is 2.1mm with center positive.
P8 Pin Number Description
1 7VDC to 24VDC, +/- 10%, 1.0A (min)
2 Power Supply Ground
14. USB Host – P3
The uEZGUI-EXP-DK 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)
P3 Pin Number Description
1 USB VBus
2 D –
3 D +
4 Signal Ground

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15. USB Device – P4
The UEZGUI-EXP-DK 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).
The UEZGUI-EXP-DK 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. This port can also be used with a USB OTG adapter to
function as a USB Host port on select uEZGUI units such as the uEZGUI-1788-43WQR.
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.
P4 Pin Number Description
1 USB 5V
2 D-
3 D+
4 USB ID Pin (Host Mode Detect Active Low)
5 Signal Ground
16. Ethernet – J3
The UEZGUI-EXP-DK 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 processor being utilized for support of the Ethernet function. Note that the low
cost ABRACON ARJP11C-MASA-A-B-EMU2 connector was specifically selected for use with PoE and 10/100 Base-T.
J3 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

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17. Power over Ethernet – SIP1 (optional)
The UEZGUI-EXP-DK Board includes a mounting point for an AG9120-S PoE module. If this module is installed and
soldered down, the uEZGUI-EXP-DK and attached uEZGUI can be powered over Ethernet. (IEEE 802.3af-2003 compliant)
P8 must be unplugged when PoE is used!
SIP1 Pin Number Description
1 VA1 +
2 VA2 –
3 VB1 +
4 VB2 –
5 CP1 (class detect)
6 CP2 (class detect)
7 Ground
8 12V Power output to EXP-DK
9 Output voltage adjust +
10 No Connect
R21 controls the PoE class that is seen by the power source. By default this is set to class 0, the most flexible option in
the original PoE spec. R18 and R20 can be loaded to adjust the 12V output. See the AG9120-S datasheet for details.
Note that most uEZGUIs average around 1W-3W power draw, so class 1 or class 2 would be suitable for most uEZGUI
final hardware implementations (such as an access control box) without additional power loads.
R21 Value
PoE Class
Power available
No load (default) Class 0 0.44W – 12.29W
698 ± 1 % Class 1 0.44W – 3.84W
383 ± 1 %
Class 2
3.84W – 6.49W
249 ± 1 % Class 3 6.49W – 12.94W
18. PMOD – J9
The UEZGUI-EXP-DK Board includes one SPI PMOD type 2A connector. Make sure that the following jumpers on JP17 are
removed: 7 – 8, 9 – 10, 11 – 12, 13 – 14, and 15 – 16.
J9 Pin Number Description J9 Pin Number Description
1
SPI Select
7
Interrupt output
2
SPI MOSI
8
Reset Input
3
SPI MISO
9
No Connect
4 SPI Clock 10 No Connect
5 Ground 11 Ground
6 3.3V 12 3.3V

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19. Potentiometer – VRES
The UEZGUI-EXP-DK Board includes one Potentiometer connected to the host uEZGUI’s ADC input.
JP18 Pin Number Description
1-2 3.3V
3-4 Output to ADC
5-6 Ground
20. FET Driver – J10
The UEZGUI-EXP-DK Board includes one FET driver port that is controlled by a GPIO. The 3 jumpers must be loaded in
the configuration shown below for the FET driver to be enabled.
J10 Pin Number Description
1 Ground (FET Source gate)
2 Ground (FET Source gate)
3 FET Drain gate
4 FET Drain gate
5 FET Drain gate (through diode D10)
6 FET Drain gate (through diode D10)
21. DALI – J12 (not loaded by default)
The UEZGUI-EXP-DK board includes one DALI interface. Nine parts must be manually loaded to enable DALI support.
Look at the schematic for details on loading DALI.
The 4 jumpers must be loaded on JP14 pins 1 – 2, 3 – 4, 5 – 6, and 7 – 8 for the DALI port to be enabled.
J12 Pin Number Description
1 DALI DP
2 No Connect
3 No Connect
4 DALI MP

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22. RS232 – P5
The uEZGUI-EXP-DK Board includes one female DB9 Serial Port Connector for RS232.
The jumpers on JP7 select null modem cable mode of the serial port;
Jumper 1-2 and 3-4 for straight through mode
Jumper 1-3 and 2-4 for NULL Modem cable mode (swap TX and RX)
The serial port may also be optionally configured to support ISP programming of the LPC1788 using FlashMagic
Software. To enable ISP programming, jumper JP12 & JP13 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. The ISP programming mode only applies to NXP LPC based uEZGUI units.
P5 Pin Number Description
1 No Connect
2 TXD (Output)
3 RXD (Input)
4 Optional RESET input
5 Signal Ground
6 No Connect
7 Optional ISP Entry
8 No Connect
9 No Connect
23. MicroSD – J8
The UEZGUI-EXP-DK Board includes one 4 bit high speed microSDHC card.
JP19 Pin Number Description
1 – 2
3.3V
3 – 4
MCI DAT 2
5 – 6
MCI DAT 3
7 – 8 MCI CMD
9 – 10 MCI Clock
11 – 12 MCI DAT 0
13 – 14 MCI DAT 1
15 – 16
Ground

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24. RS485 – P6
The UEZGUI-EXP-DK Board includes one female DB9 RS485 port. Jumpers can be loaded onto JP9 and JP10 for half
duplex mode.
P6 Pin Number Description
1 No Connect
2 485_RDB –
3 485_TDA +
4 Signal Ground
5 Signal Ground
6 No Connect
7 485_RDA +
8 485_TDB –
9 No Connect
25. CAN – J13
The UEZGUI-EXP-DK Board includes one CAN interface
J13 Pin Number Description
1 Ground
2 CAN H
3 CAN L
4 Ground

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26. I2C System – JP13
The UEZGUI-EXP-DK Board includes one I2C mux with two expansion ports. The I2C ‘A’ bus is connected to the I2C GPIO
(4 buttons and 4 LEDs) shown below. The I2C ‘B’ bus is connected to the I2C ALS / Proximity sensor shown below. The
I2C ‘C’ and ‘D’ busses are connected to the two expansion ports J4 and J5. Each expansion port has the following pinout.
JP15 Pin Number Description
1 – 2 3.3V
3 – 4 I2C SDA
5 – 6 I2C SCL
7 – 8 I2C Reset from µC
9 – 10 I2C IRQ to µC
11 – 12 Ground
J4 Pin Number Description
1 3.3V
2 Ground
3 I2C Bus C SCL
4 I2C Bus C SDA
J5 Pin Number Description
1 3.3V
2 Ground
3 I2C Bus D SCL
4 I2C Bus D SDA

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27. Audio System – JP 16 and JP17
The UEZGUI-EXP-DK Board includes a Wolfson I2S audio system and an I2C controlled audio amplifier, connected to an
onboard speaker. By default on JP17 only jumpers on 1-2, 3-4, and 5-6 are loaded. The rest of the jumpers on JP17 must
be loaded to use I2S audio. Only certain micro-controllers have support for I2S audio. DAC audio must be used
otherwise. DAC audio can be fed through the Wolfson codec to be used with headphones or external speakers using I2C
control commands.
Pin Number Description
JP16 – 1 – 2
3.3V to I2S Codec
JP16 – 3 – 4
DAC from µC to I2S Codec
JP16 – 5 – 6
DAC from µC to I2C Amp
JP16 – 7 – 8 I2S Codec to I2C Amp
JP16 – 9 – 10 I2C SCL to I2C Amp
JP16 – 11 – 12 I2C SDA to I2C Amp
JP16 – 13 – 14 3.3V to I2C Amp
JP16 – 15 – 16
Ground to I2C Amp
JP17 – 1 – 2
I2S RX WS to I2S Codec
JP17 – 4 – 4
I2S RX SDA to I2S Codec
JP17 – 5 – 6 I2S TX WS to I2S Codec
JP17 – 7 – 8 I2S TX SDA to I2S Codec
JP17 – 9 – 10 I2S TX CLK to I2S Codec
JP17 – 11 – 12 I2C SCL to I2S Codec
JP17 – 13 – 14
I2C SDA to I2S Codec
JP17 – 15 – 16
Ground to I2S Codec
28. Additional Documentation, Schematics, and Software Updates
Complete Users Manuals, Schematics, Software updates, and documentation are available from the following websites
(please refer to the websites for the latest updates):
•http://www.uEZGUI.com/uEZGUI-EXP-DK
•http://sourceforge.net/projects/uez/