5
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
