gen4-uLCD-32D Series
gen4-uLCD-32D (Non-touch)
gen4-uLCD-32D-CLB (Non-touch w/ CLB)
gen4-uLCD-32DT (Resistive touch)
gen4-uLCD-32DCT-CLB (Capacitive touch w/ CLB)
Datasheet
Revision 1.10
Copyright © 2023 4D Systems
Content may change at any time. Please refer to the resource centre for latest documentation.
Contents
1. Description
4
2. Features
5
3. Hardware Overview
6
4. Hardware Interface - Pins
8
4.1. Serial Ports - TTL Level Serial
8
4.2. General Purpose I/O
11
4.3. System Pins
13
4.4. Alternate Pin Function Overview
14
4.5. SPI
17
4.6. I2C
18
4.7. Pulse Out
19
4.8. PWM Out
20
4.9. Pin Counter
21
4.10. Quadrature In
22
4.11. Analog Inputs
23
5. Module Features
24
5.1. DIABLO16 Processor
24
5.2. Audio
24
5.3. SD/SDHC Memory Cards
25
5.4. FAT16
26
5.5. Application PCB Support
26
5.6. RF / EMI Shielding Support
27
6. Display/Module Precautions
28
7. Hardware Tools
29
7.1. 4D Programming Cable/Adaptor
29
8. Programming Language
31
9. Workshop4 IDE
32
9.1. PmmC Programming
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33
DATASHEET
Page 2 of 44
10. Display Module Part Numbers
35
11. Cover Lens Bezel - Tape Spec
35
12. FFC Cable
36
13. Starter Kit
37
14. Mechanical Details (Resistive Touch & Non-Touch without Cover Lens Bezel)
38
15. Mechanical Details (Non-Touch & Capacitive Touch with Cover Lens Bezel)
39
16. Schematic Details
40
17. Specifications
41
18. Revision History
4D Systems
44
DATASHEET
Page 3 of 44
gen4-uLCD-32D Series
Description
1. Description
The gen4 3.2" Diablo16 Integrated Display Module is part of the latest gen4 series of modules
Designed and Manufactured by 4D Systems.
The gen4 series was designed specifically for ease of integration and use, with careful consideration
for space requirements and functionality.
This specific gen4 module features a 3.2" colour TFT LCD, with optional Resistive Touch (DT) or
Capacitive Touch (DCT). It is powered by the feature-rich 4D Systems Diablo16 Graphics Processor,
which offers an array of functionality and options for any Designer / Integrator / User.
The Diablo16 processor features include 16 customisable GPIO, capable of PWM, Serial, I2C, SPI, Pulse
Out, Quadrature Input, and Analog Input.
The 3.2" Diablo16 Integrated Display Module features a TFT LCD Display, and is capable of Touch
Detection, microSD memory Storage, GPIO and Communications, along with multiple millisecond
resolution timers, and Audio Generation.
The gen4 series is 100% compatible with the Workshop4 IDE and its 4 different development
environments, providing the User with a wealth of options for programming and controlling their
system.
Anything designed to run on other 4D Systems displays modules featuring Picaso or Diablo16
Graphic Processors can be run on this gen4 Integrated Display Module, with little or no required
modifications. Please contact 4D Systems Support Team for assistance if migrating from a previous
model.
The gen4 series of Integrated Display Modules features a 30-pin ZIF/FFC/FPC socket, designed for a
30-pin FPC cable, for easy and simple connection to an application or mother board, or for
connecting to accessory boards for a range of functionality advancements.
The gen4 series of modules has been designed to minimise the impact of display-related circuitry
and provide a platform suitable for integration into a product. Application boards can sit flush on the
back of the gen4 if required, as the display-related electronics sit inside the plastic mounting base,
leaving the application board surface clear for User circuitry.
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DATASHEET
Page 4 of 44
gen4-uLCD-32D Series
Features
2. Features
• Powerful 3.2" Intelligent LCD-TFT display module powered by DIABLO16.
• 240 x 320 Resolution, RGB 65K true-to-life colours, TFT Screen with non-touch, integrated 4-wire
Resistive Touch Panel (DT), or Capacitive Touch Panel (DCT).
• 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).
• 30pin FPC connection, for all signals, power, communications, GPIO and programming.
• On-board latch-type micro-SD memory card connector for multimedia storage and data logging
purposes.
• DOS-compatible file access (FAT16 format) as well as low-level access to card memory.
• A dedicated PWM Audio pin is driven by WAV files from a micro-SD card, and for sound
generation, for an external amplifier.
• Display full colour images, animations, icons and video clips.
• Supports all available Windows fonts.
• 4.0V to 5.5V range operation (single supply).
• 4 x mounting tabs with 3.2mm holes for mechanical mounting using M3 screws (D and DT only).
• RoHS, REACH and CE compliant.
• Module dimensions:
• Weighing:
• (D): 95.7 x 57.1 x 6.3mm
• (D): ~ 35g
• (D-CLB): 98.8 x 72.6 x 7.4mm
• (D-CLB): ~ 49g
• (DT): 95.7 x 57.1 x 7.5mm
• (DT): ~ 44g
• (DCT-CLB): 98.8 x 72.6 x 8.3mm
• (DCT-CLB): ~ 57g
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Page 5 of 44
gen4-uLCD-32D Series
Hardware Overview
3. Hardware Overview
FPC Pinout
Pin
Symbol
I/O
1
GND
P
2
PA3
I/O/A
General Purpose I/O pin with Analog Capability. This pin has a range of 0-3.3V when
used as an Analog Input, and is 3.3V tolerant only. Also used for Bus Read
3
PA2
I/O/A
General Purpose I/O pin with Analog Capability. This pin has a range of 0-3.3V when
used as an Analog Input, and is 3.3V tolerant only. Also used for Bus Write
4
PA1
I/O/A
General Purpose I/O pin with Analog Capability. This pin has a range of 0-3.3V when
used as an Analog Input, and is 3.3V tolerant only.
5
PA0
I/O/A
General Purpose I/O pin with Analog Capability. This pin has a range of 0-3.3V when
used as an Analog Input, and is 3.3V tolerant only.
6
PA9
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
7
PA8
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
8
PA7
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
9
PA6
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
10
PA5
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
11
PA4
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
12
PA10
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
13
PA11
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant
14
PA12
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant. Note this pin is used for CTP
(and CTP-CLB) models and is not available to the User
15
PA13
I/O
General Purpose Input/Output, 3.3V Level - 5V Tolerant. Note this pin is used for CTP
(and CTP-CLB) models and is not available to the User.
16
PA14
I/O
General Purpose Input/Output, 3.3V Tolerant only. Special I2C Pin.
17
PA15
I/O
General Purpose Input/Output, 3.3V Tolerant only. Special I2C Pin.
18
NC
-
Not Connected
19
AUDIO_OUT
O
Audio Output, PWM, to feed into external amplifier via filter network
4D Systems
Description
Supply Ground
DATASHEET
Page 6 of 44
gen4-uLCD-32D Series
Hardware Overview
Pin
Symbol
I/O
Description
20
AUDENB
O
Audio Amplifier Enable, to enable/disable external amplifier
21
GND
P
Supply Ground
22
RESET
I
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.
23
RX0
I
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 module.
This pin is tolerant up to 5.0V levels.
24
TX0
O
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 module.
This pin is tolerant up to 5.0V levels.
25
GND
P
Supply Ground
26
5V IN
P
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to 5.5V,
nominal 5.0V.
27
5V IN
P
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to 5.5V,
nominal 5.0V.
28
NC
-
Not Connected
29
NC
-
Not Connected
30
GND
P
Supply Ground.
Note
I = Input, O = Output, P = Power
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gen4-uLCD-32D Series
Hardware Interface - Pins
4. Hardware Interface - Pins
This section describes in detail the hardware interface pins of the device.
4.1. Serial Ports - TTL Level Serial
The DIABLO16 Processor has three hardware asynchronous serial ports (COM1 - COM3) that can be
configured on a variety of processor 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 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. The figure below shows a single-byte transmission timing diagram.
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gen4-uLCD-32D Series
Serial Ports - TTL Level Serial
COM0 is also the primary interface for User program downloads and configuration PmmC /Driver
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.
TX0 pin (Serial Transmit COM0):
Dedicated Asynchronous Serial port COM0 transmit pin, TX0. Connect this pin to the
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 an 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 the external serial
device receive (Rx) signal. This can be configured to one of the GPIO pins, see the table
below.
RX1 pin (Serial Receive COM1):
Asynchronous Serial port COM1 receive pin, RX1. Connect this pin to an external serial
device transmit (Tx) signal. This can be configured to one of the GPIO pins, see the table
below.
TX2 pin (Serial Transmit COM2):
Asynchronous Serial port COM2 transmit pin, TX2. Connect this pin to the external serial
device receive (Rx) signal. This can be configured to one of the GPIO pins, see the table
below.
RX2 pin (Serial Receive COM2):
Asynchronous Serial port COM2 receive pin, RX2. Connect this pin to an external serial
device transmit (Tx) signal. This can be configured to one of the GPIO pins, see the table
below.
TX3 pin (Serial Transmit COM3):
Asynchronous Serial port COM3 transmit pin, TX3. Connect this pin to the external serial
device receive (Rx) signal. This can be configured to one of the GPIO pins, see the table
below.
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gen4-uLCD-32D Series
Serial Ports - TTL Level Serial
RX3 pin (Serial Receive COM3):
Asynchronous Serial port COM3 receive pin, RX3. Connect this pin to an external serial
device transmit (Tx) signal. This can be configured to one of the GPIO pins, see the table
below.
DIABLO16 Serial TTL Comm Port Configuration Options
TX1
PA0
PA1
RX1
TX2
Yes
Yes
PA2
Yes
RX2
TX3
Yes
Yes
Yes
Yes
RX3
Yes
Yes
Yes
Yes
Yes
PA3
Yes
Yes
Yes
Yes
Yes
Yes
PA4
Yes
Yes
Yes
Yes
Yes
Yes
PA5
Yes
Yes
Yes
Yes
Yes
Yes
PA6
Yes
Yes
Yes
Yes
Yes
Yes
PA7
Yes
Yes
Yes
Yes
Yes
Yes
PA8
Yes
Yes
Yes
Yes
Yes
Yes
PA9
Yes
Yes
Yes
Yes
Yes
Yes
PA10
Yes
Yes
Yes
PA11
Yes
Yes
Yes
PA12
Yes
Yes
Yes
Yes
Yes
Yes
PA13
Yes
Yes
Yes
Yes
Yes
Yes
PA14
PA15
As per the table, not all GPIO can be configured to be every serial port, or RX/TX.
Note
Pins PA4-PA13 are 5.0V tolerant, while pins PA0-PA3, PA14, PA15 are 3.3V tolerant only. All pins output at 3.3V
levels.
Please refer to the Diablo16 Internal Functions Manual for information on how to set the DIABLO16
pin mappings.
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gen4-uLCD-32D Series
General Purpose I/O
4.2. General Purpose I/O
There are 16 general purpose Input/Output (GPIO) pins available to the user. These provide flexibility
for individual bit operations along with serving collectively for byte-wise operations using the BUS
functions
DIABLO16 Alternate Pin Configurations General Purpose I/O
Digital Input
Digital Output
Bus Read
Bus Write
Analog Read
PA0
Yes
Yes
Yes
Yes
Yes
PA1
Yes
Yes
Yes
Yes
Yes
PA2
Yes
Yes
Yes
Yes
Yes
PA3
Yes
Yes
Yes
Yes
Yes
PA4
Yes
Yes
Yes
Yes
Yes
PA5
Yes
Yes
Yes
Yes
PA6
Yes
Yes
Yes
Yes
PA7
Yes
Yes
Yes
Yes
PA8
Yes
Yes
Yes
Yes
PA9
Yes
Yes
Yes
Yes
PA10
Yes
Yes
Yes
Yes
PA11
Yes
Yes
Yes
Yes
PA12
Yes
Yes
Yes
Yes
PA13
Yes
Yes
Yes
Yes
PA14
Yes
Yes
Yes
PA15
Yes
Yes
Yes
Please refer to the Diablo16 Internal Functions Manual for information on how to set the DIABLO16
pin mappings.
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. Digital GPIO can
source/sink 10mA. For more information, the Specifications section. These pins have a 0 to
3.3V range and have a 12-bit resolution.
For more information, refer to the Analog Inputs Section.
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gen4-uLCD-32D Series
General Purpose I/O
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 source/sink 10mA. For more information, see the Specifications section.
PA12-PA13:
PA12 and PA13 are reserved for the capacitive touch controller on the DCT-CLB model.
These pins should not be connected else Touch performance may be degraded. There are
4.7K pullup resistors on each of these GPIO. Avoid these pins in normal situations on this
DCT-CLB model. Using these pins on non-touch (D/D-CLB) and resistive touch (DT)
modules is however OK, or in situations where touch is not required. These pins are 5V
tolerant.
PA14-PA15:
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 3.3V tolerant. Digital
GPIO can source/sink 10mA. Under special situations, these pins can be utilised for a highspeed I2C interface. Please refer to the table under the Alternate Pin Function Overview
section and the information under the I2C section.
Note
Digital GPIO pins are 5.0V tolerant, except PA14-PA15, which are 3.3V tolerant only. PA0-PA3 are 3.3V tolerant
only. All pins output at 3.3V levels.
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gen4-uLCD-32D Series
System Pins
4.3. System Pins
+5V IN (Module Voltage Input):
Module supply voltage input pins. Both of these pins should be connected to a stable
supply voltage in the range of 4.0 Volts to 5.5 Volts DC. The nominal operating voltage is 5.0
Volts. Note backlight brightness will be lower for voltages under 5.0V.
GND (Module Ground):
Device ground pins. At least two pins should be connected to the ground.
RESET (Module Master Reset):
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):
Output dedicated to enabling or disabling an external amplifier, where required.
AUDIO (PWM Audio Output):
Output specifically for Audio. This pin is a PWM output from the DIABLO16 Processor. This
pin is a 3.3V level PWM output to drive an external amplifier with DIABLO16 generated
Audio, via an external filtering circuit to turn digital PWM into Analog. Note that AUDENB
must be enabled in DIABLO16 for any input signal to be heard.
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gen4-uLCD-32D Series
Alternate Pin Function Overview
4.4. Alternate Pin Function 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, I 2C, Serial or a range of other functions.
Note
Not all pins can be configured to be any of the alternate pin functions. Please refer to the tables.
Refer to the tables below that illustrate the GPIO pins you can associate with alternative functions.
DIABLO16 Alternate Pin Configurations I/O Support Functions
Pulse Out
PWM Out
Pin Counter
Quadrature In
PA0
Yes
Yes
PA1
Yes
Yes
PA2
Yes
Yes
PA3
Yes
Yes
PA4
Yes
Yes
Yes
Yes
PA5
Yes
Yes
Yes
Yes
PA6
Yes
Yes
Yes
Yes
PA7
Yes
Yes
Yes
Yes
PA8
Yes
Yes
Yes
Yes
PA9
Yes
Yes
Yes
Yes
PA10
Yes
PA11
Yes
PA12
Yes
PA13
Yes
PA14
PA15
Note
• Once you allocate a pin to an alternate function, you can't allocate another pin to the same alternate
function.
• Quadrature In requires 2 Pins
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gen4-uLCD-32D Series
Alternate Pin Function Overview
The table above illustrates the GPIO pins you can use for the 4 different I/O Support Functions.
Please refer to the Diablo16 Internal Functions Manual 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.
The table below illustrates the GPIO pins you can use for the three different SPI channels available.
DIABLO16 Alternate Pin Configurations SPI Communications
SPI1
SDO
PA0
PA1
SPI1
SDI
SPI1
SCK
SPI2
SDO
Yes
Yes
PA2
Yes
SPI2
SDI
SPI2
SCK
SPI3
SDO
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PA4
Yes
Yes
Yes
PA5
Yes
Yes
PA6
Yes
PA7
Yes
SPI3
SCK
Yes
Yes
Yes
Yes
PA3
SPI3
SDI
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PA8
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PA9
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PA10
Yes
Yes
Yes
PA11
Yes
Yes
Yes
PA12
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PA13
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PA14
PA15
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gen4-uLCD-32D Series
Alternate Pin Function Overview
The table below illustrates the GPIO pins you can use for the three different I 2C channels available.
DIABLO16 Alternate Pin Configurations I2C Communication
I 2C1 SDA
I 2C1 SCL
I 2C2 SDA
I 2C2 SCL
I 2C3 SDA
I 2C3 SCL
PA0
Yes
Yes
Yes
Yes
Yes
Yes
PA1
Yes
Yes
Yes
Yes
Yes
Yes
PA2
Yes
Yes
Yes
Yes
Yes
Yes
PA3
Yes
Yes
Yes
Yes
Yes
Yes
PA4
Yes
Yes
Yes
Yes
Yes
Yes
PA5
Yes
Yes
Yes
Yes
Yes
Yes
PA6
Yes
Yes
Yes
Yes
Yes
Yes
PA7
Yes
Yes
Yes
Yes
Yes
Yes
PA8
Yes
Yes
Yes
Yes
Yes
Yes
PA9
Yes
Yes
Yes
Yes
Yes
Yes
PA10
Yes
Yes
Yes
Yes
Yes
Yes
PA11
Yes
Yes
Yes
Yes
Yes
Yes
PA12
Yes
Yes
Yes
Yes
Yes
Yes
PA13
Yes
Yes
Yes
Yes
Yes
Yes
PA14
PA15
SPECIAL
SPECIAL
SPECIAL
SPECIAL
SPECIAL
SPECIAL
Note
SPECIAL - please see I2C section.
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gen4-uLCD-32D Series
SPI
4.5. 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.
Please refer to the table for details on which GPIO can be configured for SPI.
Note
The additional SPI channel (SPI0) is dedicated to the 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
where:
'SPIx' is substituted with SPI1, SPI2 or SPI3 accordingly, and
'pin' is the target GPIO pin compatible with that particular pin function.
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 in the 4DGL
application.
Please refer to the Diablo16 Internal Functions Manual for more information on how to use the SPI
functions, along with the DIABLO16-Processor datasheet.
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gen4-uLCD-32D Series
I2C
4.6. I2C
There are 3 user-configurable I2C channels available for mapping to GPIO, for use by the user for the
target application. All 3 I 2C channels are Master only, and cannot be configured to be slaves at this
time.
Please refer to the table for details on which GPIO can be configured for I 2C.
To map an I 2C Channel to a set of GPIO pins, the following 4DGL function is used:
• I2Cx_Open(Speed, SCLpin, SDApin);
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.
Note
The normal I 2C pins are PA0 to PA13, however, the use of these pins has a few limitations.
1. There is no slew rate control at I2C_MED.
2. I2C_FAST is not truly 1MHz.
If either of these restrictions needs to be addressed, a special case of SCLpin = PA14 and SDApin = PA15 exists
ONLY for speeds I2C_MED (which uses slew rate control) and I2C_FAST (which is truly 1MHz)
Please refer to the Diablo16 Internal Functions Manual for more information on how to use the I 2C
functions, along with the DIABLO16-Processor datasheet.
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gen4-uLCD-32D Series
Pulse Out
4.7. 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 are
executed on that Pin, it will pulse HI and then return to LO.
This is available in both blocking and non-blocking versions.
Please refer to the table for details on which GPIO can be configured to Pulse Out.
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); //Non-Blocking
• pin_PulseoutB(pin, value); //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 Diablo16 Internal Functions Manual for more information on how to use the Pulse
Out functions, along with the DIABLO16-Processor datasheet.
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PWM Out
4.8. 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 for details on which GPIO can be configured to 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 is 0 degrees and 2ms is 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 a 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 to generate, and
'value' is the parameter that defined the PWM pulse itself.
Please refer to the Diablo16 Internal Functions Manual for more information on how to use the PWM
functions, along with the DIABLO16-Processor datasheet.
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Pin Counter
4.9. 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 for details on which GPIO can be configured to Pin Counter.
To enable the Pin Counter function on a GPIO pin, the following 4DGL function is used:
• pin_Counter(pin, mode, OVFfunction);
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 Diablo16 Internal Functions Manual for more information on how to use the Pin
Counter functions, along with the DIABLO16-Processor datasheet.
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Quadrature In
4.10. Quadrature In
There are two Quadrature Input channels available on the DIABLO16 processor, which requires 2
GPIO pins each.
Please refer to the table 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:
• Qencoderx(PHApin, PHBpin, mode);
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).
Please refer to the Diablo16 Internal Functions Manual for more information on how to use the
Quadrature Input functions, along with the DIABLO16-Processor datasheet.
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Analog Inputs
4.11. Analog Inputs
Please refer to the table under the General Purpose I/O section for details about pins you can
configure to analog inputs.
The analog inputs on the DIABLO16 have a range of 0V to 3.3V, each with a max resolution of 12 bits.
You can read the analog inputs using either the standard mode, averaged mode or high-speed
mode.
• Standard Mode results are immediately read in a sample. Standard Mode can read over 40000
values per second. Operates at 12-bit.
• Averaged Mode results are immediately read in 16 samples and their average is returned.
Averaged Mode can read ~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 ~250000 times
across 1-4 channels. Operates at 10-bit.
To enable a GPIO as an Analog Input for Standard or Averaged modes, you must use the following
4DGL function 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, you must the following 4DGL function to set the pin and define the
parameters:
• ana_HS(rate, samples, 1buf, 2buf, 3buf, 4buf, func);
where:
'rate' is the number of samples per second,
'samples' is the number of samples to collect per channel,
'1buf' to '4buf' are the buffer addresses for the 4 channels, and
'func' is the user function to call when the number of samples specified has been collected.
Please refer to the Diablo16 Internal Functions Manual for more information on how to use the
Analog Input functions, along with the DIABLO16-Processor datasheet.
Note
Analog Inputs are 0V-3.3V tolerant only. Do not apply voltages outside of this range as you will damage
Diablo16.
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Module Features
5. Module Features
The gen4 series of Integrated Display Modules are designed to accommodate most applications.
Some of the main features of the module are listed below.
5.1. 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-LCDs is almost plug-n-play.
All of the data and control signals are provided by the chip to interface directly with the display.
Powerful graphics, text, images, animation and countless more features are built right inside the
chip.
You can refer to the DIABLO16 graphics processor datasheet for more information.
5.2. Audio
Audio playback support in the DIABLO16 Processor enables this module to play audio WAV files
stored in the micro-SD memory card. Filtered PWM audio is generated and made available on the
AUDIO pin of the 30-way ZIF connector, ready to interface with an audio amplifier on your
application board.
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
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SD/SDHC Memory Cards
5.3. SD/SDHC Memory Cards
The Diablo16 processor uses off-the-shelf standard SDHC/SD/microSD memory cards 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 to FAT16. 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.
RMPET, a 4D Systems Tool found in the Workshop4 IDE, is capable of repartitioning and formatting
microSD cards to be the appropriate type and format for 4D Systems processors. This tool should be
used for all cards.
Note
1. An SPI Compatible SDHC/SD/microSD card MUST be used. Diablo16 along with other 4D Systems
Processors requires SPI mode to communicate with the SD card. If a non-SPI compatible SD card is used,
then the processor will not be able to mount the card.
2. Read disturbance is a well-known issue with flash memory devices, such as microSD cards, where reading
data from a flash cell can cause the nearby cells in the same memory block to change over time. This
issue can be prevented by using industrial-grade microSD cards with read disturb protection. Industrialgrade microSD cards have firmware that actively monitors the read operation and refreshes areas of
memory that have high traffic and even move data around to prevent read disturb error from occurring.
Furthermore, manufacturers may choose to implement read disturb protection on a specific part of the
flash memory only, such that the beginning part of the memory might not be protected. The RMPET
utility in Workshop4 is designed to create the first partition at an offset from the start of the microSD card
to account for this situation. It is therefore recommended to always partition and format an industrial
microSD card using the RMPET utility before using it with 4D Systems processors. Many commercial
grade cards designed for Cameras etc, do not handle read disturb well at all, and therefore it is always
recommended to use an Industrial grade microSD card with 4D modules. 4D offers one that is tried and
tested, on our website.
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FAT16
5.4. FAT16
All 4D Systems display modules featuring 4D Labs processors use off-the-shelf standard SDHC/SD/
micro-SD memory cards (SPI Compatible Only) with up to 4GB capacity usable with FAT16
formatting.
For any FAT file-related operations, before the memory card can be used it must first be formatted
correctly. Built into Workshop4 is a tool created by 4D, called RMPET (please refer to the Tools menu,
in any Environment, inside the Workshop4 IDE). RMPET allows the User to easily partition and format
microSD cards, to make their file system ready to be used with 4D Systems modules. The formatting
of the card can be done on any PC system with a card reader.
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. Refer to the 4D Systems RMPET tool in the Workshop4 IDE.
A Max of 4GB can be utilised by the FAT16 file system. The FAT partition is always first (if it exists). Any
space larger than 4GB will be RAW, and can still be utilised by your 4D Systems module, using
different functions. Please refer to the Application Notes.
5.5. Application PCB Support
The gen4 3.2" Diablo16 Integrated Display Module is designed to accommodate a range of
applications and therefore is suited for those wanting to make a customised module, without the
need for piggy-back or daughter boards mounted on headers.
On the back of the gen4 module, the display-related circuitry will be found, which is recessed into
the plastic. The level of the plastic on the back of the gen4 module is higher than the tallest
component on the display circuit PCB, meaning an Application PCB can be mounted on the back of
the gen4, without affecting the display-related circuitry.
The image below (2.4" model depicted) shows a mock Application PCB on the back of the gen4
display (Blue area). It features a cut-out in the PCB so access to the micro-SD socket on the gen4's
display board is possible, however, this may or may not be required depending on the application
and if the micro-SD socket is utilised or requiring access once the Application PCB is applied.
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RF / EMI Shielding Support
The micro-SD socket is a latch type, so it is accessible from the top, rather than a push/push or push/
pull style which is accessible from the side.
5.6. RF / EMI Shielding Support
As per what is written in section 5.5 (Application PCB Support), there is an option for extended RF
shielding and EMI protection on this module.
On the back of the gen4's display PCB, are grounded plated 'X pads', which make contact with the
metal housing of the display.
Where the Application PCB is shown to sit under the Application PCB Support section; can house a
small metal shield of the same size. This shield is used instead of, or underneath an Application PCB,
to aid the onboard electronics in the prevention of potential RF or EMI signals.
On the top of the display, PCB is another GND pad, which can have a pogo pin or similar device
mounted on it, which can make contact with this metal shield.
The display electronics are then sandwiched between the display's metal housing, and the metal
shield, all connected with a common ground.
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Display/Module Precautions
Note
There are no guarantees these steps will increase chances or grant access to EMI-related certifications,
however, the gen4 can utilise shielding of the module's electronics, should the need arise. This may or may
not assist the User with protecting the device against EMI/EMF/RF type noise, depending on the source,
strength and type of noise present, however, should aid in the protection.
The metal shield is not made or available from 4D Systems to buy, it is to illustrate a concept only.
6. Display/Module Precautions
• Avoid having to display the same image/object on the screen for lengthy periods. This can 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 should
not cause any problems, however, if water is to enter the display either from the front or from the
rear, or come in contact with the PCB, it will damage. Wipe off any moisture gently or let the
display dry before usage. If using this display module in an environment where it can get wet,
ensure an appropriate enclosure is used.
• 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 temperatures 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.
• Displays are susceptible to mechanical shock and any force exerted on the module may result in
deformed zebra stripes, a cracked display cell and a broken backlight
• Always use the mounting holes on the module's corner plates to mount the display where
possible.
• Display modules have a finite life, which is typically dictated by the display itself, more specifically
the backlight. The backlight contains LEDs, which fade over time. In the Specifications section is
a figure for the typical life of the display, and the criteria are listed. The resistive Touch model
features a touch-sensitive film over the display which is sensitive to pressure. When mounting
the display module in an enclosure, you should not apply pressure to the surface of the display by
the enclosure. It could result in false touches or the touch will simply not function at all.
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Hardware Tools
7. Hardware Tools
The following hardware tools are required for full control of the gen4 Integrated Display Modules.
7.1. 4D Programming Cable/Adaptor
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 is a USB to Serial-TTL UART converter cable incorporating the Silabs
CP2102 USB to Serial UART bridge IC.
4D Programming Cable
Note
in conjunction with a Programming Cable or a Programming Adaptor, the gen4 series of Display Modules
require a simple interface board (gen4-IB), as there is no 5-way male header on gen4 modules like other 4D
Systems modules.
The gen4 Interface boards (gen4-IB) ship with each gen4 Display Module unless otherwise stated.
Simply connect the supplied 30-way FPC cable to the ZIF connector on the gen4 Interface Board,
and connect the Programming Cable or Adaptor to the 5-way header on the Interface Board. You are
now ready to program using a 4D Programming Cable. This can also be used to interface with other
devices such as a 4D Arduino Adaptor Shield, breadboard etc.
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4D Programming Cable/Adaptor
An alternative to using a gen4-IB and a 4D Programming Cable is a single all-in-one board called the
4D-UPA (4D Universal Programming Adaptor).
4D-UPA
The 4D-UPA minimizes the connections and modules required for programming - creating a single
module with microUSB interface, and DIP style pads for GPIO breakout of all the signals used on the
gen4 Display interface, which is useful for development or final product use.
The GPIO naming convention on the 4D-UPA does not reflect the GPIO naming of the actual display
module, due to the 4D-UPA being universal and able to be used with many 4D Products. Please
review the 4D-UPA datasheet for information on mapping the GPIO naming from this module, with
the GPIO naming on the 4D-UPA, to ensure you connect to the correct pins you desire.
Note
In addition to these modules, the gen4-PA and uUSB-PA5/uUSB PA5-II can still be used. Please be reminded
though that the uUSB-PA5/PA5-II still needs a gen4-IB to be used for programming.
Using a non-4D programming interface could damage your processor, and void your warranty.
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Programming Language
8. Programming Language
The DIABLO16 processor belongs to a family of processors powered by a highly optimised softcore
virtual engine called EVE (Extensible Virtual Engine). EVE was designed and created by 4D Systems
in the early 2000s, and should not be confused with FTDI's solution of EVE, which was developed a
decent decade or so later.
EVE is a proprietary, high-performance virtual machine with an extensive byte-code instruction set
optimised to execute compiled 4DGL programs.
4DGL (4D Graphics Language) was specifically developed from the ground up for the EVE engine
core. It is a high-level language that is easy to learn and simple to understand yet powerful enough
to tackle many embedded graphics applications.
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.
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.
For detailed information pertaining to the 4DGL language, please refer to the following documents:
• 4DGL Programmers Reference Manual
• Diablo16 Internal Functions Manual
To assist with the development of 4DGL applications, the Workshop4 IDE combines a full-featured
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 Workshop4 IDE,
Designer and ViSi. The other two environments, Serial and ViSi-Genie do not directly use 4DGL by the
User (Except in Workshop4 Pro, for ViSi-Genie), however, it is present in the background. Serial is an
application that runs, and that is written in 4DGL. ViSi-Genie automatically generates 4DGL itself
based on what is configured in the GUI. More information about each follows.
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Workshop4 IDE
9. Workshop4 IDE
Workshop4 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 Downloader to develop complete 4DGL application code. All user application code is
developed within the Workshop4 IDE.
The Workshop4 IDE supports multiple development environments for the user, to cater to different
user requirements and skill levels.
• The Designer environment enables the user to write 4DGL code in its natural form to program
the range of 4D System's intelligent displays.
• 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. This can be extended with additional features
when a Workshop4 PRO license is purchased from the 4D Systems website. Extended Advanced
features for Visi-Genie are available in the PRO version of WS4. Further details are explained in
the Visi Genie section of the Workshop4 documentation.
• A Serial environment is also provided to transform the display module into a slave serial module,
allowing the user to control the display from any host microcontroller or device with a serial port.
For more information regarding these environments, refer to the Workshop4 manuals.
The Workshop 4 IDE is available from the 4D Systems website.
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PmmC Programming
9.1. PmmC Programming
The DIABLO16 processor is a custom graphics processor. All functionality including the high-level
commands is 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.
A PmmC file contains all of the low-level micro-code information (analogy of that of a soft silicon)
which defines the characteristics and functionality of the device. The ability to program the device
with a PmmC file provides an extremely flexible method of customising as well as upgrading it with
future enhancements.
The Display Driver contains the initialisation and parameters associated with the particular display
that is to be connected to the DIABLO16 processor, along with product-specific settings and
parameters which are required over and above what is found in the PmmC.
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.
Solutions, which remove the need to use Workshop4 to program the display modules, are available
for commercial customers requiring batch programming or production line programming. These
solutions are practical for production staff and minimize the chance of unwanted or unauthorised
modifications on the production line.
Three solutions come with the Workshop4 IDE, which can be separated for production line
computers if required, ScriptC, PmmC Loader and Program Loader.
ScriptC is a command line interface that can be controlled from a Batch Script or similar, useful for
repetitive loading or when controlled from an external application. Example scripts are provided,
showing how to load PmmC, Display Drivers and Applications using a batch script.
Program Loader is a GUI interface designed to download Applications to either Flash or RAM, useful
for testing or production loading, without the need for Workshop4 itself.
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PmmC Programming
PmmC Loader is a GUI interface designed to download PmmC's and Drivers to 4D Systems
Processors. It can automatically update existing PmmC's and Drivers present on a module, or
manually change or force download to a blank processor or module, overwriting anything written in
previously.
Please contact our Support Team for more information on what we can provide. Some solutions also
exist for external processor-based loading, if there is a requirement for that. This solution is available
under NDA. Using a non-4D programming interface could damage your module, and void your
warranty.
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Display Module Part Numbers
10. Display Module Part Numbers
The following is a breakdown of the part numbers and what they mean.
Example:
• gen4-uLCD-32DT
• gen4-uLCD-32DCT-CLB
where:
gen4 - gen4 Display Range
uLCD - microLCD Display Family
32 - Display size (3.2")
D - Diablo16 Processor
T - Resistive Touch
CT - Capacitive Touch
CLB - Cover Lens Bezel
Note
• A product without a T or CT in the part number is a non-touch variant.
• Cover Lens Bezels (CLB) are glass fronts for the display module with overhanging edges, which allow the
display module to be mounted directly into a panel using special adhesive on the overhanging glass. This
is available for capacitive touch only.
• Resistive Touch models are not available in CLB, as a CLB is made of glass and resistive touch relies on the
mechanical flexing of a membrane to trigger touch.
11. Cover Lens Bezel - Tape Spec
The perimeter of the CLB display modules features double-sided adhesive tape, designed to stick
directly onto a panel, enclosure, box etc without the need for any mounting screws or hardware.
The tape used is 3M 9495LE tape, which uses well-known and strong 3M 300LSE adhesives. The
double-sided adhesive has a thickness of 0.17mm once the backing has been removed.
More information on this adhesive can be found on the 3M website.
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FFC Cable
12. FFC Cable
The FFC cables supplied by 4D Systems (included with products) have the following specifications:
• 30 Pin Flexible Flat Cable, 150mm Long, 0.5mm (0.02") pitch
• Cable Type: AWM 20624 80C 60V VW-1
• Heat Resistance 80 Degrees Celsius
• Connections on the opposite side at each end (Type B)
Note
You can get different cable lengths by contacting the 4D Systems sales team.
If you are interfacing with this module directly to your product, and wish to interface via the FFC
cable directly, suitable connectors are readily available from many electronics suppliers, such as
Digikey, Mouser, Farnell, RS, etc.
A standard 30-pin, 0.5mm pitch, 0.3mm thick FFC, FFC connector. They are available in Top Contact
and Bottom Contact, so depending how you orientate the cable on your product, will determine
which one you need. Please however take care of the pinout and how it flows from the display
module, through the FFC and into your product, to ensure Pin1 and Pin30 are where you expect
them to be.
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Starter Kit
13. Starter Kit
4D Systems highly recommends all first-time buyers of 4D Systems displays, to purchase the Starter
Kit when purchasing their first 4D Systems display solution.
The Starter Kit provides all the hardware that is required to get the User up and running.
Not all development environments and features will be needed by every User. However, purchasing
the display solution in a Starter Kit allows you to take full advantage of all of the features of the 4D
Systems Display Solution and try out each of the 4D Woskshop4 Environments before settling with
the preferred feature set.
The Designer environment can use every feature of the display, however, depending on the user
requirements, a micro-SD (uSD) card may not be required. The uSD card is used when displaying
images/video/sound, along with data logging to uSD, and a programming cable or adaptor is
required for downloading compiled code and PmmC/Firmware updates.
The ViSi environment is the same as Designer in terms of feature utilisation, but is image based so
requires a uSD card, along with a programming cable.
The ViSi-Genie environment is also image-based, and therefore requires a uSD card and
programming cable also.
The Serial environment does not require either a uSD or Programming cable to be used once the
module has been configured as a Serial device, however, can use both depending on the user's
requirements. The uSD card can be used for such things as storage and display of multimedia files,
data logging, and the Programming cable for PmmC/Firmware updates, or changing to one of the
other three programming environments.
Starter Kits typically include:
• gen4 Integrated Display Module
• gen4 Interface Module (gen4-IB)
• 4D Universal Programming Adaptor (4D-UPA)
• 4GB micro-SD Card
• 5-way cable for easy connection to a breadboard or host via the gen4-IB
• 150mm 30-way FFC cable for connecting gen4 display to gen4-IB or 4D-UPA
Please refer to the 4D Systems website for the current components included in the Starter Kit.
Simply select the Starter Kit option when purchasing the chosen display module on the 4D Systems
shopping cart, or from your local distributor.
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Mechanical Details (Resistive Touch & Non-Touch without Cover Lens Bezel)
14. Mechanical Details (Resistive Touch & Non-Touch without Cover Lens Bezel)
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Mechanical Details (Non-Touch & Capacitive Touch with Cover Lens Bezel)
15. Mechanical Details (Non-Touch & Capacitive Touch with Cover Lens Bezel)
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Schematic Details
16. Schematic Details
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Specifications
17. Specifications
Absolute Maximum Ratings
Operating ambient temperature
-20°C to +70°C
Storage temperature
-30°C to +80°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
Conditions
Min
Typ
Max
Units
Supply Voltage
(VCC)
Stable external supply
required
4.0
5.0
5.5
V
--
3.3
--
V
0
--
0.2VP
V
Processor voltage
(VP)
Input Low Voltage
(VIL)
all pins
Input High Voltage
(VIH)
non 5V tolerant pins
0.8VP
--
3.3
V
Input High Voltage
(VIH)
5V Tolerant Pins, RX pin
0.8VP
--
5.5
V
Input High Voltage
(VIH)
PA4-PA13, RX0 and TX0
pins
0.8VP
--
5.5
V
Reset Pulse
External Open Collector
2.0
--
--
µs
Operational Delay
Power-Up or External
Reset
500
--
3000
ms
4D Systems
DATASHEET
Page 41 of 44
gen4-uLCD-32D Series
Specifications
Global Characteristics Based on Operating Conditions
Parameter
Conditions
Min
Typ
Max
Units
Supply Current
(ICC)
5V Supply - gen4-uLCD-32D
--
165
--
mA
5V Supply - gen4-uLCD-32D-CLB
--
165
--
mA
5V Supply - gen4-uLCD-32DT
--
165
--
mA
5V Supply - gen4-uLCD-32DCT-CLB
--
170
--
mA
Display Endurance
Hours of operation, measured to when
the display is 50% original brightness
30000
--
--
H
Touch Screen
Endurance
Number of touches/hits with a 12.5mm
tip at a rate of 2x per second with 250gf
force
--
1M
--
Touches
Slide stylus on screen, 100gf force,
60mm/s speed with a 0.8mm
polyacetal tip stylus pen
--
100K
--
Slides
80
--
--
%
Touch Screen
Transparency
Touch Screen
Operational Force
Only use Finger or Stylus, do not use
anything sharp or metal
20
--
100
Gf
CLB Display
Hardness
Hardness of the CLB Glass
--
6
--
H
4D Systems
DATASHEET
Page 42 of 44
gen4-uLCD-32D Series
Specifications
LCD DISPLAY INFORMATION
Parameter
Conditions
Specification
Display Type
TFT Transmissive LCD
Display Size
3.2 Diagonal
Display Resolution
240 x 320 (Portrait View)
Display Brightness
5V Supply, gen4-uLCD-32D
200 cd/m2 (typical)
5V Supply,gen4-uLCD-32D-CLB
194 cd/m2 (typical)
5V Supply, gen4-uLCD-32DT
160 cd/m2 (typical)
5V Supply, gen4-uLCD-32DCTCLB
190 cd/m2 (typical)
Display Contrast Ratio
Typical
500:1
Display Viewing
Angles
Above Centre
35 Degrees
Below Centre
55 Degrees
Left of Centre
55 Degrees
Right of Centre
55 Degrees
Display Viewing
Direction
Display Backlighting
6 O'clock Display (Optimal viewing is from below when in
Portrait mode)
White LED Backlighting
1x6 Parallel LED's
Pixel Pitch
Pixel Density
0.2025 x 0.2025mm (Square pixels)
Number of pixels in 1 row in
25.4mm1
127 DPI/PPI
Note
The Displays used are of the highest rated 'Grade A', which allows for 0-4 defective pixels. A defective pixel
could be solid Black (Dead), White, Red, Green or Blue.
4D Systems
DATASHEET
Page 43 of 44
gen4-uLCD-32D Series
Revision History
18. Revision History
Datasheet Revision
Revision
Number
Date
Description
0.1
xx/xx/2015
Internal Use Only
1.0
09/12/2015
Initial Public Release Version
1.1
22/12/2015
Cosmetic Changes to gen4 Datasheet range
1.2
21/03/2016
Updates to display specs following initial production samples, and the addition of
the CLB model, and drawing
1.3
08/06/2016
Drawing and Specification updates, other minor changes
1.4
09/04/2018
Addition of 4D-UPA
1.6
04/03/2019
Cosmetic Changes to gen4 Datasheet range
1.7
11/11/2019
1.8
24/06/2021
General updates/information.
- Addition of FFC cable/connector information. FFC Cable section.
1.9
07/09/2021
Addition to display information/specs Specifications section.
1.10
02/01/2023
Modified datasheet for web-based documentation.
Updated details regarding Serial Port voltage tolerance
Hardware Revision
4D Systems
Revision Number
Date
1.2
31/05/2016
DATASHEET
Description
Initial Public Release Version
Page 44 of 44
