uLCD-70DT

uLCD-70DT
DATASHEET
uLCD-70DT
7.0” DIABLO16 Intelligent Display Module
Document Date: 11th November 2013
Document Revision: 1.0
Uncontrolled Copy when printed or downloaded.
Please refer to the 4D Systems website for the latest Revision of this document
Contents
1. Description ............................................................................................................................. 4
2. Features ................................................................................................................................. 4
3. Pin Configuration and Summary .............................................................................................. 5
4. Hardware Interface - Pins........................................................................................................ 7
Serial Ports – TTL Level Serial ................................................................................................................. 7
General Purpose I/O ............................................................................................................................... 8
System Pins ............................................................................................................................................ 8
Alternate Pin Funtions - Overview .......................................................................................................... 9
SPI ......................................................................................................................................................... 10
I2C ......................................................................................................................................................... 10
Pulse Out .............................................................................................................................................. 10
PWM Out.............................................................................................................................................. 11
Pin Counter .......................................................................................................................................... 11
Quadrature In ..................................................................................................................................... 11
Analog Inputs ..................................................................................................................................... 12
5. PmmC/Firmware Programming ............................................................................................. 13
6. Module Features .................................................................................................................. 13
Display – 7.0” TFT Touch Screen .......................................................................................................... 13
DIABLO16 Processor ............................................................................................................................. 13
Audio .................................................................................................................................................... 14
SD/SDHC Memory Cards ...................................................................................................................... 14
FAT16 ................................................................................................................................................... 14
7. Display Precautions .............................................................................................................. 14
8. Hardware Tools .................................................................................................................... 15
4D Programming Cable/Adaptor .......................................................................................................... 15
9. 4DGL - Software Language .................................................................................................... 15
10. 4D Systems - Workshop 4 IDE .............................................................................................. 16
Workshop 4 – Designer Environment ................................................................................................ 16
Workshop 4 – ViSi Environment......................................................................................................... 16
Workshop 4 – ViSi Genie Environment .............................................................................................. 17
11. Notes ................................................................................................................................. 18
12. Scribble Box ........................................................................................................................ 18
Mechanical Details ............................................................................................................................. 19
13. Schematic Diagram ............................................................................................................. 20
14. Specifications and Ratings ................................................................................................... 21
15. Legal Notice ........................................................................................................................ 22
16. Contact Information............................................................................................................ 22
uLCD-70DT Display Module
4D SYSTEMS
uLCD-70DT Display Module
1. Description
2. Features
The uLCD-70DT is a brilliant 7.0” Intelligent Display
Module powered by the 4D Systems’ DIABLO16
Graphics Processor.
• Powerful 7.0” Intelligent LCD-TFT
module powered by DIABLO16.
The uLCD-70DT is designed for applications
demanding a large intelligent display module, and
is the largest size available from 4D Systems.
Driving the display and peripherals is the
DIABLO16 processor, a very capable and powerful
chip which enables stand-alone functionality,
programmed using the 4D Systems Workshop 4
IDE Software. The Workshop IDE enables graphic
solutions to be constructed rapidly and with ease
due to its design being solely for 4D’s graphics
processors.
The DIABLO16 Processor offers considerable
FLASH and RAM upgrades over the PICASO
processor, and also provides mappable functions
such as I2C, SPI, Serial, PWM, Pulse Out, and
Quadrature Input, to various GPIO, and also
provide up to 4 Analog Input channels.
The display module has an array of features
including PWM for Sound, Touch Detection, microSD memory storage, general purpose I/O including
Analog Inputs, multiple TTL Serial, I2C and SPI
channels and multiple millisecond resolution
timers, amongst many more features.
Anything that has been designed in the past to run
on a PICASO Processor can theoretically run on
this DIABLO16 Module with minor changes. Please
ensure you contact the 4D Systems’ support team
if unsure if upgrading from a PICASO product and
wanting to design with or change over to this
uLCD-70DT Module.
The uLCD-70DT also features 2mm pitch male
headers to connect an optional module. 4D
Systems intends to bring out one or more modules
which will be compatible with the uLCD-70DT,
offering connectivity such as WiFi or Bluetooth.
This will enable the uLCD-70DT to connect with
remote devices. Please contact the 4D Systems
Sales team for more information on these, or visit
the 4D Systems website when they become
available.
NOTE: DC JACK (JACK1) on Hardware Rev 1.05 has
been found to have an issue and is therefore not
populated. Powering is via USB or 5V pin on
headers. This will be rectified on HW Rev 1.06.
© 2013 4D SYSTEMS
display
• 800 x 480 Resolution, RGB 65K true to life
colours, TFT Screen with integrated 4-wire
Resistive Touch Panel.
• Easy 5 pin interface to any TTL Serial Host:
VCC, TX, RX, GND, RESET
• 6 banks of 32750 bytes of Flash memory for
User Application Code and Data
• 32Kb of SRAM purely for the User.
• 16 General Purpose I/O pins for user interfacing,
which include 4 configurable Analog Inputs.
• The GPIO is variously configurable for
alternative functions such as:
◦
3x I2C channels available
◦
1x SPI dedicated for SD Card and 3x
configurable SPI channels available
◦
1x dedicated and 3x configurable TTL
Serial comm ports available
◦
Up to 6 GPIO can be used as Pin Counters
◦
Up to 6 GPIO for PWM (simple and Servo)
◦
Up to 10 GPIO for Pulse Output
◦
Up to 14 GPIO can be configured for
Quadrature Encoder Inputs (2 channels)
• On-board micro-SD memory card connector for
multimedia storage and data logging purposes.
• Full sided SD memory card connector is
available for volume purchases.
• DOS compatible file access (FAT16 format) as
well as low level access to card memory.
• Dedicated raw PWM Audio pin driven by WAV
files from micro-SD card.
• On-board audio amplifier with a tiny 8Ω speaker
for sound generation and WAV file playback.
• Display full colour images, animations, icons and
video clips on chosen 4D Systems display.
• Supports all available Windows fonts.
• 4.0V to 5.5V range operation (single supply).
• Module dimensions: 179.9 x 100 x 15.5mm
(including tabs), Weighing ~215 g.
• Display Viewing Area: 154.1 x 85.9mm
• 4x mounting tabs with 3.5mm holes for
mechanical mounting.
• RoHS and CE Compliant.
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uLCD-70DT Display Module
4D SYSTEMS
uLCD-70DT Display Module
3. Pin Configuration and Summary
NOTE: Full Sized SD socket and EXT. SD Card Header (H3) are NOT populated,
Populated on special orders only. JACK1 (5V DC JACK) NOT populated until HW Rev. 1.06
Pin
Symbol
I/O
1
+5V IN
P
2
N/C
-
3
TX
O
4
N/C
-
5
RX
I
6
7
8
N/C
GND
N/C
P
-
9
RESET
I
10
N/C
-
H2 Pinout (Programming Header)
Description
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to
5.5V, nominal 5.0V. 500mA minimum Required.
No Connect – Leave this pin unconnected
Asynchronous Serial Transmit pin, TTL level. Connect this pin to the Receive (Rx)
signal of other serial devices. Used in conjunction with the RX pin for
programming this microLCD. 5.0V Tolerant Pin. Connected to TX0 via Resistor.
No Connect – Leave this pin unconnected
Asynchronous Serial Receive pin, TTL level. Connect this pin to the Transmit (Tx)
signal of other serial devices. Used in conjunction with the TX pin for
programming this microLCD. 5.0V Tolerant Pin. Connected to RX0 via Resistor.
No Connect – Leave this pin unconnected
Supply Ground
No Connect – Leave this pin unconnected
Master Reset signal. Internally pulled up to 3.3V via a 10K resistor. An active Low
pulse greater than 2 micro-seconds will reset the module. If the module needs
to be reset externally, only use open collector type circuits. This pin is not driven
low by any internal conditions. The host should control this pin via one of its
port pins using an open collector/drain arrangement.
No Connect – Leave this pin unconnected
Continued overleaf…
I = Input, O = Output, P = Power
© 2013 4D SYSTEMS
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uLCD-70DT Display Module
4D SYSTEMS
uLCD-70DT Display Module
H1 Pinout
Pin
Symbol
I/O
1
PA3
I/O
2
SPK-
O
PA2
I/O
SPK+
O
PA1
I/O
6
7
PA11
O
PA0
I/O
8
9
10
11
12
13
14
PA10
N/C
PA14
GND
PA15
GND
I/O
I
P
I
P
+5V IN
P
N/C
AUDIO
N/C
AUDENB
PA9
RESET
PA8
3.3V_OUT
PA7
RX0
PA6
TX0
PA5
PA13
PA4
PA12
I/O
O
I/O
I
I/O
O
I/O
I
I/O
O
I/O
I/O
I/O
I/O
3
4
5
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Description
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
Speaker Output -ve if a different speaker is used externally. Disconnected on
board speaker if utilised.
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
Speaker Output +ve if a different speaker is used externally. Disconnected on
board speaker if utilised.
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
General Purpose I/O. This pin is 5.0V tolerant.
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
General Purpose I/O. This pin is 5.0V tolerant.
No Connect – Leave this pin unconnected
General Purpose Input Only. This pin is 5.0V tolerant.
Supply Ground
General Purpose Input Only. This pin is 5.0V tolerant.
Supply Ground
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to
5.5V, nominal 5.0V. 500mA minimum Required.
No Connect – Leave this pin unconnected
Audio Output or Input direct to Amplifier, TTL Line level
No Connect – Leave this pin unconnected
External Amplifier enable pin, to control an external amplifier from the module
General Purpose I/O. This pin is 5.0V tolerant.
Master Reset, Active Low (GND), See H2 Pin 9 Description
General Purpose I/O. This pin is 5.0V tolerant.
3.3V Output, limited to approximately 20mA, for external use.
General Purpose I/O. This pin is 5.0V tolerant.
Asynchronous serial port 0 receive pin. COM0
General Purpose I/O. This pin is 5.0V tolerant.
Asynchronous serial port 0 transmit pin. COM0
General Purpose I/O. This pin is 5.0V tolerant.
(RESERVED FOR RESISTIVE TOUCH)
General Purpose I/O. This pin is 5.0V tolerant.
(RESERVED FOR RESISTIVE TOUCH)
I = Input, O = Output, P = Power
Pin
Symbol
1
2
3
4
5
6
SD_SDI
3.3V
SD_SDO
SD_SCK
GND
SD_CS
H3 Pinout (EXT. SD Header) – NOT POPULATED NORMALLY
I/O Description
I
O
O
P
O
SD Card SDI Signal for SD Card Only (shared with uSD/SD Sockets)
3.3V Supply for SD Card Only
SD Card SDO Signal for SD Card Only (shared with uSD/SD Sockets)
SD Card SCK Signal for SD Card Only (shared with uSD/SD Sockets)
Supply Ground
SD Card Chip Select Signal for SD Card Only (shared with uSD/SD Sockets)
NOTE: Caution must be used if utilising this header, only 1 SD card can be installed at any given time
© 2013 4D SYSTEMS
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uLCD-70DT Display Module
4D SYSTEMS
uLCD-70DT Display Module
4. Hardware Interface - Pins
The uLCD-70DT Module provides both a hardware
and software interface. This section describes in
detail the hardware interface pins of the device.
Serial Ports – TTL Level Serial
The DIABLO16 Processor has three hardware
asynchronous serial ports (COM1 – COM3) that
can be configured on a variety of the processors
GPIO pins. TX/RX0 (COM0) is dedicated and its
pins are fixed. All of the DIABLO16’s serial ports
can be used to communicate with external serial
devices.
TX/RX0 are referred to as COM0, and is the only
one used for programming the DIABLO16 itself.
The primary features are:
 Full-Duplex 8 bit data transmission and
reception.

Data format: 8 bits, No Parity, 1 Stop bit.

Independent Baud rates from 300 baud
up to 600K baud.

Single byte transmits and receives or a
fully buffered service. The buffered
service feature runs in the background
capturing and buffering serial data
without the user application having to
constantly poll any of the serial ports. This
frees up the application to service other
tasks.
A single byte serial transmission consists of the
start bit, 8-bits of data followed by the stop bit.
The start bit is always 0, while a stop bit is always
1. The LSB (Least Significant Bit, Bit 0) is sent out
first following the start bit. Figure below shows a
single byte transmission timing diagram.
COM0 is also the primary interface for 4DGL user
program downloads and chip configuration PmmC
programming. Once the compiled 4DGL
application program (EVE byte-code) is
downloaded and the user code starts executing,
the serial port is then available to the user
application. Refer to Section 5 for more details on
PmmC/Firmware programming.
TX0 pin (Serial Transmit COM0):
Dedicated Asynchronous Serial port COM0
transmit pin, TX0. Connect this pin to external
serial device receive (Rx) signal. This pin is 5.0V
tolerant.
RX0 pin (Serial Receive COM0):
Dedicated Asynchronous Serial port COM0 receive
pin, RX0. Connect this pin to external serial device
transmit (Tx) signal. This pin is 5.0V tolerant.
TX1 pin (Serial Transmit COM1):
Asynchronous Serial port COM1 transmit pin, TX1.
Connect this pin to external serial device receive
(Rx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
RX1 pin (Serial Receive COM1):
Asynchronous Serial port COM1 receive pin, RX1.
Connect this pin to external serial device transmit
(Tx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
TX2 pin (Serial Transmit COM2):
Asynchronous Serial port COM2 transmit pin, TX2.
Connect this pin to external serial device receive
(Rx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
RX2 pin (Serial Receive COM2):
Asynchronous Serial port COM2 receive pin, RX2.
Connect this pin to external serial device transmit
(Tx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
TX3 pin (Serial Transmit COM3):
Asynchronous Serial port COM3 transmit pin, TX3.
Connect this pin to external serial device receive
(Rx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
RX3 pin (Serial Receive COM3):
Asynchronous Serial port COM3 receive pin, RX3.
Connect this pin to external serial device transmit
(Tx) signal. This pin is 5.0V tolerant. This can be
configured to 1 of the GPIO pins, see table below.
© 2013 4D SYSTEMS
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uLCD-70DT Display Module
source/sink 10mA. For more information see
Section 14, ‘Specifications and Ratings’.
General Purpose I/O
There are 16 general purpose Input/Output (GPIO)
pins available to the user. These provide flexibility
of individual bit operations along with serving
collectively for byte wise operations using the BUS
functions
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
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Analog Read
Bus Write
Bus Read
Digital Output
DIABLO16 Alternate Pin Configurations
General Purpose I/O
Digital Input
uLCD-70DT Display Module
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PA14-PA15:
Input only pins. These pins can only be Digital
Inputs.
Note: All GPIO pins are 5.0V tolerant.
System Pins
+5V IN (Module Voltage Input)
H1 Pin 14, H2 Pin 1, 5V Barrel Jack centre*:
Module supply voltage input pins. At least one of
these pins must be connected to a stable supply
voltage in the range of 4.0 Volts to 5.5 Volts DC.
Nominal operating voltage is 5.0 Volts. Note
backlight brightness will be lower for voltages
under 5.0V. 500mA of current is the minimum
recommended for module stability. It is highly
recommended to use a 1A supply for best stability
and results.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information.
PA0-PA3:
General purpose I/O pins, or can serve as Analog
Input pins. Each pin can be individually set for
INPUT or OUTPUT or ANALOG. Power-Up Reset
default is all INPUTS. When set as Digital Inputs,
the pins are 5V tolerant. Digital GPIO can
source/sink 10mA. For more information see
Chapter 17, ‘Specifications and Ratings’.
When set as Analog Inputs, the pins have a 0 to
3.3V range, and have 12 bit resolution.
For more information, see Section 4.11 ‘Analog
Inputs’.
PA4-PA11:
General purpose I/O pins. Each pin can be
individually set for INPUT or OUTPUT. Power-Up
Reset default is all INPUTS. When set as Digital
Inputs, the pins are 5V tolerant. Digital GPIO can
© 2013 4D SYSTEMS
PA12-PA13:
PA12 and PA13 are reserved and are used
exclusively for the resistive touch controller. These
pins are NOT to be connected, else Touch may not
perform correctly. These feature 4.7K pull up
resistors on PA12 and PA13. These are present on
the Headers for special cases only where Touch is
not installed. Do not attempt to use these pins in
normal situations.
3.3V_OUT (3.3V Output)
H1 Pin 22:
3.3V Output for the user, limited to approximately
20mA. Used for powering small external devices or
components.
GND (Module Ground)
H1 Pin 11/13, H2 Pin 7, Barrel Jack sheath*:
Device ground pins. Any of these pins can be used
to GND the module, at least one must be
connected to ground.
RESET (Module Master Reset)
H1 Pin 20, H2 Pin 9:
Module Master Reset pin. An active low pulse of
greater than 2μs will reset the module. Internally
pulled up to 3.3V via a 10K resistor. Only use open
collector type circuits to reset the device if an
external reset is required.
AUDENB (Audio Enable Output)
H1 Pin 18:
Output dedicated to enable or disable and
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uLCD-70DT Display Module
external amplifier, where required. Active High.
AUDIO (PWM Audio Input/Output)
H1 Pin 16:
Universal Input or Output specifically for Audio.
This pin connects directly into the on-board
amplifier, but also with the filtered PWM output
from the DIABLO16 Processor. This pin can be used
to input a signal into the on-board amplifier to
play audio from an external device using the onboard amplifier, or as a line-level output to drive
an external amplifier with DIABLO16 generated
Audio. Note that AUDENB must be enabled (high)
in DIABLO16 for any input signal to be heard.
Alternate Pin Funtions - Overview
Most of the GPIO pins have an alternate function
other than being for General Purpose I/O.
GPIO pins can be configured to be SPI, I2C, Serial or
a range of other functions.
can be used for the four different I/O Support
Functions.
Note: Once a pin is allocated to an alternate
function, another pin cannot also be allocated to
the same alternate function.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to set the alternate pin
configurations.
The Alternate pin functions have been broken up
into a few tables for simplification. There are
communication based functions, and I/O support
based functions.
Further information is available in the next
sections for each of the alternative pin functions.
Note: Quadrature In requires 2 Pins
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
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© 2013 4D SYSTEMS
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Quadrature In
Pin Counter
PWM Out
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PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
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SPI3 SCK
SPI3 SDI
SPI3 SDO
SPI2 SCK
DIABLO16 Alternate Pin Configurations
I/O Support Functions
SPI2 SDI
The previous table illustrates which of the GPIO
SPI2 SDO
DIABLO16 Alternate Pin Configurations
SPI Communications
SPI1 SCK
Please refer to the following tables which illustrate
which pins can be associated alternative functions.
SPI1 SDI
The following table illustrates which of the GPIO
can be used for the three different SPI channels
available.
SPI1 SDO
Note: Not all pins however can be configured to
be any of the alternate pin functions.
Pulse Out
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uLCD-70DT Display Module
4D SYSTEMS
uLCD-70DT Display Module
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PA13
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I2C3 SCL
I2C3 SDA
I2C2 SCL
Chip Select for use with SPI can be any other
unused GPIO pin, configured as a Digital Output.
The lowering and raising of the selected CS (GPIO)
pin is done manually by the user is the 4DGL
application.
I2C2 SDA
DIABLO16 Alternate Pin Configurations
I2C Communications
I2C1 SCL
Where ‘SPIx’ is substituted with SPI1, SPI2 or SPI3
accordingly, and ‘pin’ is the target GPIO pin
compatible with that particular pin function.
I2C1 SDA
The following table illustrates which of the GPIO
can be used for the three different I2C channels
available.
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Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the SPI functions, along
with the separate document titled ‘DIABLO16Processor-Datasheet-REVx.x.pdf’.
I2C
There are 3 user configurable I2C channels
available for mapping to GPIO, for use by the user
for the target application. All 3 I2C channels are
Master only, and cannot be configured to be
slaves at this time.
Please refer to the table on the previous page for
details on which GPIO can be configured for I2C.
To map an I2C Channel to a set of GPIO pins, the
following 4DGL function is used:
I2Cx_Open(Speed, SCLpin, SDApin);
SPI
There are 3 user configurable SPI channels
available for mapping to GPIO, for use by the user
for the target application. All 3 SPI channels are
Master only, and cannot be configured to be
slaves at this time.
The SPI Bus speed is configurable using the
SPIx_Init() Function in 4DGL, and allows various
speeds from 78.125Khz to 17.5Mhz.
Where ‘I2Cx’ is substituted with I2C1, I2C2 or I2C3
accordingly, ‘Speed’ is the desired I2C Bus speed,
and ‘SCLpin’ and ‘SDApin’ are the target GPIO pins
compatible with that particular pin function.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the I2C functions, along
with the separate document titled ‘DIABLO16Processor-Datasheet-REVx.x.pdf’.
Please refer to the table on the previous page for
details on which GPIO can be configured for SPI.
Note: The additional SPI channel (SPI0) is
dedicated to memory cards and cannot be
reconfigured for alternate uses.
To map an SPI channel to a set of GPIO pins, the
following 4DGL functions are used:
SPIx_SCK_pin(pin);
// Map the SCK pin
SPIx_SDI_pin(pin);
// Map the SDI pin
SPIx_SDO_pin(pin);
// Map the SDO pin
© 2013 4D SYSTEMS
Pulse Out
Pulse Out is used to create a single pulse of set
duration on the selected pin of choice, which is
inverted in polarity to the current state of the pin.
This ‘inversion of polarity’ means if a Pin is
currently held HI, and Pulse Out is executed on
that Pin, the pin will pulse LO and then return to
HI. Same with vice versa, if currently LO and Pulse
Out is executed on that Pin, it will pulse HI and
then return to LO.
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This is available in both blocking and non-blocking
versions.
to generate, and ‘value’ is the parameter which
defined the PWM pulse itself.
Please refer to the table on the previous page for
details on which GPIO can be configured to this.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the PWM functions,
along with the separate document titled
‘DIABLO16-Processor-Datasheet-REVx.x.pdf’.
Note: Each Pulse Out request needs at least a 1ms
lead time due to the scheduling of the event with
the internal 1ms timer.
To enable the Pulse Out function on a GPIO pin,
the following 4DGL functions are used:
pin_Pulseout(pin, value);
pin_PulseoutB(pin, value);
//Non-Blocking
//Blocking
Where ‘pin’ is the target GPIO pin compatible with
that particular pin function, and ‘value’ is the
length of the pulse in milliseconds.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the Pulse Out
functions, along with the separate document titled
‘DIABLO16-Processor-Datasheet-REVx.x.pdf’.
Pin Counter
There are 6 Pin Counter channels available to be
configured by the user, used to count incoming
pulses with the ability to call a user function on
overflow. The Pin Counter function is available for
use in a variety of modes.
The counters can be read and written at any time.
Please refer to the table in section 4.4 ‘Alternate
Pin Functions – Overview’ for details on which
GPIO can be configured for this.
To enable the Pin Counter function on a GPIO pin,
the following 4DGL function is used:
pin_Counter(pin, mode, OVFfunction);
PWM Out
There are 6 PWM channels available to be
configured by the user, with 4 time bases available
for selection.
The PWM can be configured to be used in Servo
Mode, or Simple Mode.
Please refer to the table on the previous page for
details on which GPIO can be configured for PWM.
Servo Mode allows a millisecond input value with
0.01ms resolution, which runs at a frequency of
approximately 50Hz or 50pps (20ms). The position
of the servo is determined by the width of the
pulse. Generally 1.5ms is 90 degrees, 1ms being 0
degrees and 2ms being 180 degrees. Servos
however vary, and the DIABLO16 PWM control can
be adjusted to suit most applications.
Simple Mode allows a percentage input value with
resolution of 0.1%, which runs at a frequency of
approximately 70KHz.
To enable the PWM output on a GPIO pin, the
following 4DGL function is used:
PWM_Init(pin, mode, value);
Where ‘pin’ is the GPIO compatible with the
particular pin function, ‘mode’ is the type of PWM
© 2013 4D SYSTEMS
Where ‘pin’ is the GPIO pin compatible with this
particular function, ‘mode’ is the type of trigger
used to count on such as Rising/Falling/Edge, and
‘OVFfunction’ is the user function to call when the
counter overflows, if desired.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the Pin Counter
functions, along with the separate document titled
‘DIABLO16-Processor-Datasheet-REVx.x.pdf’.
Quadrature In
There are two Quadrature Input channels available
on the DIABLO16 processor, which requires 2 GPIO
pins each.
Please refer to the table on the previous page for
details on which GPIO can be configured for
Quadrature Input.
Quadrature Input allows a quadrature encoder to
be connected, and the position counter and delta
counter can be read at any time.
To enable the Quadrature Input function on a set
of GPIO pins (2 pins required), the following 4DGL
function is used:
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Qencoderx(PHApin, PHBpin, mode);
ana_HS(rate, samples, 1buf, 2buf, 3buf, 4buf, func);
Where ‘Qencoderx’ is substituted for Quencoder1
or Quencoder2 accordingly, ‘PHApin’ is the pin
connected to the A Phase of the Encoder, ‘PHBpin’
is the pin connected to the B Phase of the Encoder,
and ‘mode’ is not currently used so is to be set to
zero (0).
Where ‘rate’ is the number of samples per second,
‘samples’ is the number of samples to collect per
channel, ‘1buf’  ‘4buf’ are the buffer addresses
for the 4 channels, and ‘func’ is the user function
to call when the number of samples specified have
been collected.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on how to use the Quadrature Input
functions, along with the separate document titled
‘DIABLO16-Processor-Datasheet-REVx.x.pdf’.
Please refer to the separate document titled
'DIABLO16-4DGL-Internal-Functions.pdf' for more
information on the Analog Input functions, along
with the separate document titled ‘DIABLO16Processor-Datasheet-REVx.x.pdf’.
Analog Inputs
Please refer to the table in section 4.2 for details
on which GPIO can be configured to be analog
inputs.
The analog inputs on the DIABLO16 have a range
of 0 to 3.3V, each with a max resolution of 12-bits.
The analog inputs can be read using three modes,
standard mode, averaged mode or high speed
mode.
Standard Mode results in a sample being
immediately read. Standard Mode can read over
40000 values per second. Operates at 12-bit.
Averaged Mode results in a 16 sample being
immediately read and their average returned.
Averaged Mode can read approximately 20000
values per second. Operates at 12-bit.
Highspeed Mode collects a user specified number
of samples at a user specified rate/frequency and
can execute a user function when complete. The
updated value updates approximately 250000
times across 1-4 channels. Operates at 10-bit.
To enable a GPIO to be used as an Analog Input for
Standard or Averaged modes, the following 4DGL
function is used to set the pin:
pin_Set(mode, pin);
Where ‘mode’ is the desired mode defined above,
either Standard or Averaged, and ‘pin’ is the GPIO
compatible with this function which is to become
an Analog Input.
For highspeed mode, the following 4DGL function
is used to set the pin and define the parameters:
© 2013 4D SYSTEMS
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5. PmmC/Firmware Programming
6. Module Features
The DIABLO16 processor is a custom graphics
processor. All functionality including the high level
commands are built into the chip. This chip level
configuration is available as a PmmC (Personalitymodule-micro-Code) file, which can be likened to
traditional Firmware. There is also a Display Driver
file, which separates specific display settings from
the PmmC, unlike on the PICASO processor where
everything is combined.
The uLCD-70DT module is designed to
accommodate most applications. Some of the
main features of the module are listed below.
A PmmC file contains all of the low level microcode information (analogy of that of a soft silicon)
which define the characteristics and functionality
of the device. The ability of programming the
device with a PmmC file provides an extremely
flexible method of customising as well as
upgrading it with future enhancements.
 Screen Size: 7.0” diagonal, 800x480 resolution,
65K colours
 Integrated 4-Wire Resistive Touch Screen
 Screen Dimensions: 164.9 x 100.0 x 4.7mm
 Viewing Area: 151.68 x 85.92mm
 Pixel Pitch: 0.0632(H) x 0.179(V)mm
 Brightness: 300cd/m2
 Contrast Ratio: 500:1
 Viewing Angle Above Centre: 75 degrees
 Viewing Angle Below Centre: 70 degrees
 Viewing Angle Left of Centre: 75 degrees
 Viewing Angle Right of Centre: 75 degrees
 Viewing Direction: 6 O'clock
 7x2 Parallel LEDs for Backlighting
The Display Driver contains the initialisation and
parameters associated with the particular display
that is to be connected to the DIABLO16
processor.
The PmmC file and Display Driver file can only be
programmed into the device via the COM0 serial
port with the aid of Workshop 4, the 4D Systems
IDE software.
Using a non-4D programming interface could
damage your module, and void your Warranty.
Display – 7.0” TFT Touch Screen
The uLCD-70DT module is equipped with a 7.0”
TFT display. Details of the display are listed below:
Note: The Displays used are the highest rated
‘Grade A’ Displays, which allow for 0-4 defective
pixels. A defective pixel could be solid Black
(Dead), White, Red, Green or Blue.
DIABLO16 Processor
The module is designed around the DIABLO16
Graphics Controller from 4D-Labs.
The DIABLO16 is a smart Controller and the
interface to the TFT- LCD displays is almost plug-nplay.
All of the data and control signals are provided by
the chip to interface directly to the display.
© 2013 4D SYSTEMS
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Powerful graphics, text, image, animation and
countless more features are built right inside the
chip.
The data sheet for the processor is available from
the http://www.4dsystems.com.au website:
“DIABLO16-Processor-Datasheet-REVx.pdf”
Audio
Audio playback support in the PICASO Processor
enables the uLCD-70DT module to play audio WAV
files stored in the micro-SD memory card. PWM
and an on-board audio amplifier with 8Ω speaker
ensure ample audio output capability. A simple
instruction enables the user to play/pause/stop
audio files while continuing the execution of the
user application code, such as display updates,
touch recognition, communications, etc. The audio
system also allows real time pitch change of audio
samples.
For a complete list of audio commands please
refer to the separate document titled:
“DIABLO16-4DGL-Internal-Functions.pdf”
Note: The on-board speaker is a small device
designed to project into an audio cavity. It is not
very loud by itself. To enable louder audio, it is
recommended to use a larger external 8Ω speaker.
See the ‘Hardware Interface Pins’ – ‘System Pins’
section for more information.
SD/SDHC Memory Cards
The module supports micro-SD memory cards via
the on-board micro-SD connector. The memory
card is used for all multimedia file retrieval such as
images, animations and movie clips. The memory
card can also be used as general purpose storage
for data logging applications. Support is available
for off the shelf micro-SD and high capacity HC
memory cards (4GB and above).
Note: A microSD card capable of SPI is a
requirement for all 4D Systems’ display modules
powered by Goldelox, Picaso or Diablo16
Processors. If a non-SPI compatible card is used, it
will simply fail to mount, or may cause
intermittent issues resulting in lock ups and
crashing of the application. Please refer to the 4D
Systems website for microSD cards offered by 4D
Systems.
© 2013 4D SYSTEMS
FAT16
The uLCD-70DT Module uses off the shelf standard
SDHC/SD/micro-SD memory cards (SPI Compatible
Only) with up to 2GB capacity usable with FAT16
formatting. For any FAT file related operations,
before the memory card
can be used it must first
be formatted with FAT16
option. The formatting of
the card can be done on
any PC system with a card
reader. Select the appropriate drive and choose
the FAT16 (or just FAT in some systems) option
when formatting. The card is now ready to be used
in the DIABLO16 based application.
The DIABLO16 Processor also supports high
capacity HC memory cards (4GB and above). The
available capacity of SD-HC cards varies according
to the way the card is partitioned and the
commands used to access it.
The FAT partition is always first (if it exists) and can
be up to the maximum size permitted by FAT16.
Windows 7 will format FAT16 up to 4GB. Windows
XP will format FAT16 up to 2GB and the Windows
XP command prompt will format FAT16 up to 4GB.
7. Display Precautions
• Avoid having to display the same image/object
on the screen for lengthy periods of time. This will
cause a burn-in which is a common problem with
all types of display technologies. Blank the screen
after a while or dim it very low by adjusting the
contrast. Better still; implement a screen saver
feature.
• Moisture and water can damage the display.
Moisture on the surface of a powered display will
cause the electrodes to corrode. Wipe off any
moisture gently or let the display dry before usage.
• Dirt from fingerprint oil and fat can easily stain
the surface of the display. Gently wipe off any
stains with a soft lint-free cloth.
• The performance of the display will degrade
under high temperature and humidity. Avoid such
conditions when storing.
• Do not tamper with the display flex cable that is
connected to the control board. This may affect
the connection between the display and the
driving circuitry and cause failure.
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• Displays are susceptible to mechanical shock and
any force exerted on the module may result in
deformed zebra stripes, a cracked display cell and
broken backlight
• Always use the mounting holes on the module's
corner plates to mount the display.
8. Hardware Tools
The following hardware tools are required for full
control of the uLCD-70DT module.
4D Programming Cable/Adaptor
9. 4DGL - Software Language
The uLCD-70DT Module utilises the DIABLO16
processor, which belongs to a family of processors
powered by a highly optimised soft core virtual
engine, EVE (Extensible Virtual Engine).
EVE is a proprietary, high performance virtualmachine with an extensive byte-code instruction
set optimised to execute compiled 4DGL
programs. 4DGL (4D Graphics Language) was
specifically developed from ground up for the EVE
engine core. It is a high level language which is
easy to learn and simple to understand yet
powerful enough to tackle many embedded
graphics applications.
The 4D Programming Cable and uUSB-PA5
Programming Adaptor are essential hardware
tools to program, customise and test the
DIABLO16 Processor.
4DGL is a graphics oriented language allowing
rapid application development, and the syntax
structure was designed using elements of popular
languages such as C, Basic, Pascal and others.
Either the 4D Programming Cable or the uUSB-PA5
Programming Adaptor can be used.
Programmers familiar with these languages will
feel right at home with 4DGL. It includes many
familiar instructions such as IF..ELSE..ENDIF,
WHILE..WEND, REPEAT..UNTIL, GOSUB..ENDSUB,
GOTO, PRINT as well as some specialised
instructions
SERIN,
SEROUT,
GFX_LINE,
GFX_CIRCLE and many more.
The 4D programming interfaces are used to
program a new Firmware/PmmC, Display Driver
and for downloading compiled 4DGL code into the
processor. They even serve as an interface for
communicating serial data to the PC.
The 4D Programming Cable and uUSB-PA5
Programming Adaptor are available from 4D
Systems, www.4dsystems.com.au
Using a non-4D programming interface could
damage your processor, and void your Warranty.
For detailed information pertaining to the 4DGL
language, please refer to the following documents:
“4DGL-Programmers-Reference-Manual.pdf”
“DIABLO16-4DGL-Internal-Functions.pdf”
To assist with the development of 4DGL
applications, the Workshop 4 IDE combines a fullfeatured editor, a compiler, a linker and a downloader into a single PC-based application. It's all
you need to code, test and run your applications.
4DGL is available to be written in two of the four
environments offered by the Workshop 4 IDE,
Designer and ViSi.
4D Programming Cable
uUSB-PA5 Programming Adaptor
© 2013 4D SYSTEMS
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Workshop 4 – Designer Environment
10. 4D Systems - Workshop 4 IDE
Workshop 4 is a comprehensive software IDE that
provides an integrated software development
platform for all of the 4D family of processors and
modules. The IDE combines the Editor, Compiler,
Linker and Down- Loader to develop complete
4DGL application code. All user application code is
developed within the Workshop 4 IDE.
The Workshop 4 IDE supports multiple
development environments for the user, to cater
for different user requirements and skill level.



The Designer environment enables the user to
write 4DGL code in its natural form to
program the uLCD-70DT Module.
A visual programming experience, suitably
called ViSi, enables drag-and-drop type
placement of objects to assist with 4DGL code
generation and allows the user to visualise
how the display will look while being
developed.
An advanced environment called ViSi-Genie
doesn’t require any 4DGL coding at all, it is all
done automatically for you. Simply lay the
display out with the objects you want, set the
events to drive them and the code is written
for you automatically. ViSi-Genie provides the
latest rapid development experience from 4D
Systems.
Choose the Designer environment to write 4DGL
code in its raw form.
The Designer environment provides the user with
a simple yet effective programming environment
where pure 4DGL code can be written, compiled
and downloaded to the uLCD-70DT Module.
Workshop 4 – ViSi Environment
ViSi was designed to make the creation of
graphical displays a more visual experience.
ViSi is a great software tool that allows the user to
see the instant results of their desired graphical
layout. Additionally, there is a selection of inbuilt
dials, gauges and meters that can simply be placed
onto the simulated module display. From here
each object can have its properties edited, and at
the click of a button all relevant 4DGL code
associated with that object is produced in the user
program. The user can then write 4DGL code
around these objects to utilise them in the way
they choose.
The Workshop 4 IDE is available from the 4D
Systems website. www.4dsystems.com.au
For a comprehensive manual on the Workshop 4
IDE Software along with other documents, refer to
the documentation from the 4D Systems website,
on the Workshop 4 product page.
© 2013 4D SYSTEMS
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Workshop 4 – ViSi Genie Environment
ViSi Genie is a breakthrough in the way 4D
Systems’
graphic
display
modules
are
programmed. It is an environment like no other, a
code-less programming environment that provides
the user with a rapid visual experience, enabling a
simple GUI application to be ‘written’ from scratch
in literally seconds.
ViSi Genie does all the background coding, no
4DGL to learn, it does it all for you.
Pick and choose the relevant objects to place on
the display, much like the ViSi Environment yet
without having to write a single line of code. Each
object has parameters which can be set, and
configurable events to animate and drive other
objects or communicate with external devices.
Simply place an object on the screen, position and
size it to suit, set the parameters such as colour,
range, text, and finally select the event you wish
the object to be associated with, it is that simple.
In seconds you can transform a blank display into a
fully animated GUI with moving sliders, animated
press and release buttons, and much more. All
without writing a single line of code!
ViSi Genie provides the user with a feature rich
rapid development environment, second to none.
© 2013 4D SYSTEMS
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11. Notes
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12. Scribble Box
© 2013 4D SYSTEMS
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Mechanical Details
© 2013 4D SYSTEMS
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uLCD-70DT Display Module
13. Schematic Diagram
© 2013 4D SYSTEMS
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14. Specifications and Ratings
ABSOLUTE MAXIMUM RATINGS
Operating ambient temperature ................................................................................................... -15°C to +65°C
Storage temperature .......................................................................................................................... -30°C +70°C
Voltage on any digital input pin with respect to GND ....................................................................... -0.3V to 6.0V
Voltage on VCC with respect to GND ................................................................................................. -0.3V to 6.0V
Maximum current sunk/sourced by any pin .............................................................................................. 10.0mA
Maximum current sunk/sourced by all ports ........................................................................................... 200.0mA
NOTE: Stresses above those listed here may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at those or any other conditions above those indicated in the
recommended operation listings of this specification is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage (VCC)
Operating Temperature
Input Low Voltage (VIL)
Input High Voltage (VIH)
Input High Voltage (VIH)
Reset Pulse
Operational Delay
Conditions
Stable external supply required
3.3V, all pins
3.3V, non 5V tolerant pins
All GPIO pins, RX0 and TX0 pins
External Open Collector
Power-Up or External Reset
Min
4.0
-10
0
0.8VCC
0.8VCC
2.0
500
Typ
5.0
-------
Max
5.5
+60
0.2VCC
3.3
5.5
-3000
Units
V
°C
V
V
V
µs
ms
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Supply Current (ICC)
Output Low Voltage
(VOL)
Output High Voltage
(VOH)
Capacitive Loading
Flash Memory
Endurance
Conditions
3.3V, heavily depends on screen usage
conditions, sleep mode
Min
Typ
Max
Units
--
450
--
mA
3.3V, IOL = 3.4mA
--
--
0.4
V
3.3V, IOL = -2.0mA
2.4
--
--
V
All pins
--
--
50
pF
PICASO PmmC Programming
--
10000
--
E/W
ORDERING INFORMATION
Order Code: uLCD-70DT
Packaging: Module sealed in an antistatic foam padded 4D Systems box
© 2013 4D SYSTEMS
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15. Legal Notice
Proprietary Information
The information contained in this document is the property of 4D Systems Pty. Ltd. and may be the subject of
patents pending or granted, and must not be copied or disclosed without prior written permission.
4D Systems endeavours to ensure that the information in this document is correct and fairly stated but does
not accept liability for any error or omission. The development of 4D Systems products and services is
continuous and published information may not be up to date. It is important to check the current position with
4D Systems. 4D Systems reserves the right to modify, update or makes changes to Specifications or written
material without prior notice at any time.
All trademarks belong to their respective owners and are recognised and acknowledged.
Disclaimer of Warranties & Limitation of Liability
4D Systems makes no warranty, either expressed or implied with respect to any product, and specifically
disclaims all other warranties, including, without limitation, warranties for merchantability, non-infringement
and fitness for any particular purpose.
Information contained in this publication regarding device applications and the like is provided only for your
convenience and may be superseded by updates. It is your responsibility to ensure that your application meets
with your specifications.
Images and graphics used throughout this document are for illustrative purposes only. All images and graphics
used are possible to be displayed on the 4D Systems range of products, however the quality may vary.
In no event shall 4D Systems be liable to the buyer or to any third party for any indirect, incidental, special,
consequential, punitive or exemplary damages (including without limitation lost profits, lost savings, or loss of
business opportunity) arising out of or relating to any product or service provided or to be provided by 4D
Systems, or the use or inability to use the same, even if 4D Systems has been advised of the possibility of such
damages.
4D Systems products are not fault tolerant nor designed, manufactured or intended for use or resale as on line
control equipment in hazardous environments requiring fail – safe performance, such as in the operation of
nuclear facilities, aircraft navigation or communication systems, air traffic control, direct life support machines
or weapons systems in which the failure of the product could lead directly to death, personal injury or severe
physical or environmental damage (‘High Risk Activities’). 4D Systems and its suppliers specifically disclaim
any expressed or implied warranty of fitness for High Risk Activities.
Use of 4D Systems’ products and devices in 'High Risk Activities' and in any other application is entirely at the
buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless 4D Systems from any and all
damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise,
under any 4D Systems intellectual property rights.
16. Contact Information
For Technical Support: support@4dsystems.com.au
For Sales Support: sales@4dsystems.com.au
Website: www.4dsystems.com.au
Copyright 4D Systems Pty. Ltd. 2000-2013.
© 2013 4D SYSTEMS
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