Add-on
Prod.
PCB.
A product of a PHYTEC Technology Holding company
Display Adapter LCD-014-x / LCD-017-x
In this manual are descriptions for copyrighted products that are not explicitly indicated as such. The absence of the trademark (
™
) and copyright (
©
) symbols does not imply that a product is not protected. Additionally, registered patents and trademarks are similarly not expressly indicated in this manual.
The information in this document has been carefully checked and is believed to be entirely reliable. However, PHYTEC Messtechnik GmbH assumes no responsibility for any inaccuracies. PHYTEC Messtechnik GmbH neither gives any guarantee nor accepts any liability whatsoever for consequential damages resulting from the use of this manual or its associated product. PHYTEC
Messtechnik GmbH reserves the right to alter the information contained herein without prior notification and accepts no responsibility for any damages which might result.
Additionally, PHYTEC Messtechnik GmbH offers no guarantee nor accepts any liability for damages arising from the improper usage or improper installation of the hardware or software. PHYTEC Messtechnik GmbH further reserves the right to alter the layout and/or design of the hardware without prior notification and accepts no liability for doing so.
©
Copyright 2011 PHYTEC Messtechnik GmbH, D-55129 Mainz.
Rights - including those of translation, reprint, broadcast, photomechanical or similar reproduction and storage or processing in computer systems, in whole or in part - are reserved. No reproduction may occur without the express written consent from PHYTEC Messtechnik GmbH.
EUROPE
Address: PHYTEC Technologie Holding AG
Robert-Koch-Str. 39
D-55129 Mainz
GERMANY
Ordering
Information:
+49 (800) 0749832 [email protected]
PHYTEC America LLC
203 Parfitt Way SW, Suite G100
Bainbridge Island, WA 98110
USA
1 (800) 278-9913 [email protected]
Technical
Support:
+49 (6131) 9221-31 [email protected]
Fax: +49 (6131) 9221-33
Web Site: http://www.phytec.de
1 st
Edition June 2011
1 (800) 278-9913 [email protected]
1 (206) 780-9135 http://www.phytec.com
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PHYTEC Messtechnik GmbH 2011 L-758e_1
Contents
Conventions, Abbreviations and Acronyms.............................................iii
View of LCD-014-x ..................................................................... 4
View of LCD-017-x .................................................................... 5
Minimum Requirements to Operate the Display Adapters.......... 6
PDI Power Supply Connector ......................................... 6
PDI Data Connector ........................................................ 6
Carrier Board Connectivity (X5, X3)........................................... 7
Display Data Connector (X5).......................................... 7
Display Power Connector (X3)..................................... 10
Display Connectivity (X2) .........................................................11
Touch Screen Connectivity (X1, X16, X17, X18)..................... 12
Backlight Connectivity (X4, X10, X11) .................................... 12
Backlight Converter ................................................................... 15
Ambient Light Photo Sensor ...................................................... 15
I2C-EEPROM ............................................................................ 15
phyWIRE-EEPROM ..................................................................16
Technical Specifications ................................................................... 17
Component Placement Diagram...................................................... 21
The Display Adapters on the phyBASE.......................................... 23
Controlling Touch with the phyBASE....................................... 24
Photo Sensor...............................................................................25
Power Connector ........................................................................25
Mounting a Display Adapter on a Baseboard ................................ 27
Revision History ................................................................................ 31
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ii
Display Adapter LCD-014-x / LCD-017-x
Modular Concept of the PHYTEC phyCARD Development
Kit family ................................................................................... 2
Component side of LDC-014-x ................................................. 4
Component side of LDC-017-x ................................................. 5
LCD-014 Physical Dimensions ............................................... 18
LCD-017 Physical Dimensions ............................................... 19
LCD-014 Component Placement, Bottom View ..................... 21
LCD-017 Component Placement, Bottom View ..................... 22
Preparing Baseboard and Display Adapter.............................. 27
Screwing .................................................................................. 28
Rubber Plugs and Wires .......................................................... 28
The result... .............................................................................. 29
Abbreviations and Acronyms used in this Manual................... iv
Display data connector signal description ................................. 9
Display power connector signal description............................ 10
Display connector signal description....................................... 11
Possibilities how to controll backlight brightness ................... 15
Adjusting output current .......................................................... 15
Selection of the touch screen controller................................... 24
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PHYTEC Messtechnik GmbH 2011 L-758e_1
Conventions, Abbreviations and Acronyms
This hardware manual describes the LCD-014-M / LCD-017-xxx
PHYTEC Display Adapter. The manual specifies the adapter boards design and function. Precise specifications for the display mounted can be found in the Data Sheet/User's Manual.
Conventions
The conventions used in this manual are as follows:
Signals that are preceded by a "n", "/", or “#”character (e.g.: nRD,
/RD, or #RD), or that have a dash on top of the signal name (e.g.:
RD) are designated as active low signals. That is, their active state is when they are driven low, or are driving low.
A "0" indicates a logic zero or low-level signal, while a "1" represents a logic one or high-level signal.
Tables which describe jumper settings show the default position in
bold, blue text .
Text in
blue italic
indicates a hyperlink within, or external to the document. Click these links to quickly jump to the applicable
URL, part, chapter, table, or figure.
References made to the display connectors or the PHYTEC
Display-Interface (PDI) always refer to the combination of display data connector (40 pin FCC connector, 0,5mm pitch) and display power connector (AMP microMatch 8-188275-2) on the PHYTEC
Carrier Board.
Abbreviations and Acronyms
Many acronyms and abbreviations are used throughout this manual.
Use the table below to navigate unfamiliar terms used in this document.
Abbreviation Definition
BSP Board Support Package (Software delivered with the
Development Kit including an operating system
(Windows, or Linux) preinstalled on the module and
Development Tools).
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PHYTEC Messtechnik GmbH 2011 L-758e_1 iii
Display Adapter LCD-014-x / LCD-017-x
Abbreviation Definition
CB Carrier Board; used in reference to the PHYTEC
Development Kit Carrier Board.
GPI
GPIO
GPO
J
General purpose input.
General purpose input and output.
General purpose output.
Solder jumper; these types of jumpers require solder equipment to remove and place.
Solderless jumper; these types of jumpers can be JP
PCB removed and placed by hand with no special tools.
Printed circuit board.
PEB PHYTEC Board
SBC Single Board Computer; used in reference to
PHYTEC modules, such as phyCOREs, phyCARDS, etc.
Sx
Sx_y
User button Sx (e.g. S1, S2, etc.) used in reference to the available user buttons, or DIP-Switches
Switch y of DIP-Switch Sx; used in reference to the
DIP-Switches on the display adapter or Carrier
Board.
Table 1: Abbreviations and Acronyms used in this Manual
Note:
The BSPs delivered with PHYTEC Development Kits usually include drivers and/or software for also controlling the PHYTEC Extension
Boards. Therefore programming close to hardware at register level is not necessary in most cases. For this reason, this manual contains no information relevant for software development. Please refer to BSP documentation, chip datasheets and Linux sources if such information is needed. iv
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Preface
As a member of PHYTEC's new Add-on product family the
LCD-014-M / LCD-017-xxx PHYTEC Display Adapter is one of a series of boards that provide additional functions and interfaces to the standard PHYTEC Carrier Boards.
Primarily designed for PHYTEC’s new phyCARD Rapid
Development Kit family, due to the flexibility of the concept we will use the same LCD Adapters also in conjunction with further phyCORE-baseboards.
PHYTEC supports the display adapters in two ways:
(1) as add-ons for Rapid Development Kits which serve as a reference and evaluation platform
(2) as insert-ready, fully functional OEM display boards, which can be embedded directly into the user’s peripheral hardware design.
Implementation of an OEM-able subassembly as the "core" of a specific function or interface allows you to focus on the development of customer specific circuitry without having to worry about standard functions and interface circuitry.
Production-ready Board Support Packages (BSPs) and Design
Services for our hardware will further reduce your development time and risk and allow you to focus on your product expertise. Take advantage of PHYTEC products to shorten time-to-market, reduce development costs, and avoid substantial design issues and risks. With this new innovative full system solution you will be able to bring your new ideas to market in the most timely and cost-efficient manner.
For more information go to: http://www.phytec.com/services/
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Display Adapter LCD-014-x / LCD-017-x
LCD-014 is available with the ordering number LCD-014-M and has a
5" VGA display.
The part numbering of the model LCD-017 has the following structure:
Display Size / Resolution
035V =
050V =
070W =
104S =
3.5" VGA
5" VGA
7" WVGA
10.4" SVGA
In order to receive product specific information on changes and updates in the best way also in the future, we recommend to register at http://www.phytec.de/de/support/registrierung.html
You can also get technical support and additional information concerning your product. vi
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Preface
The support section of our web site provides product specific information, such as errata sheets, application notes, FAQs, etc. http://www.phytec.eu/europe/support/faq
Declaration of Electro Magnetic Conformity of the
PHYTEC Display Adapter LCD-014 / LCD-017
PHYTEC Single Board Computers and Add-on Boards (henceforth products) are designed for installation in electrical appliances or as dedicated Evaluation Boards (i.e.: for use as a test and prototype platform for hardware/software development) in laboratory environments.
Caution:
PHYTEC products lacking protective enclosures are subject to damage by ESD and, hence, may only be unpacked, handled or operated in environments in which sufficient precautionary measures have been taken in respect to ESD-dangers. It is also necessary that only appropriately trained personnel (such as electricians, technicians and engineers) handle and/or operate these products. Moreover,
PHYTEC products should not be operated without protection circuitry if connections to the product's pin header rows are longer than 3 m.
PHYTEC products fulfill the norms of the European Union’s
Directive for Electro Magnetic Conformity only in accordance to the descriptions and rules of usage indicated in this hardware manual
(particularly in respect to the pin header row connectors, power connector and serial interface to a host-PC).
Implementation of PHYTEC products into target devices, as well as user modifications and extensions of PHYTEC products, is subject to renewed establishment of conformity to, and certification of, Electro
Magnetic Directives. Users should ensure conformance following any modifications to the products as well as implementation of the products into target systems.
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Display Adapter LCD-014-x / LCD-017-x
viii
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Introduction
The display adapters LCD-014-x and LCD-017-x belong to a series of add-on modules for PHYTEC’s Single Board Computers. These addon modules allow easy development of complex applications with offthe-shelf components.
PHYTEC Display Adapters LCD-014-x and LCD-017-x are compatible to the PHYTEC Display-Interface (PDI) which consists of two universal connectors on the PHYTEC Carrier Board. The display data connector (40 pin FCC connector, 0,5mm pitch) combines various interface signals like LVDS, USB, I
2
C, etc. required to hook up a display and a touch screen. The display power connector (AMP microMatch 8-188275-2) provides all supply voltages needed to supply the display and a backlight.
Because of featuring the PDI the PHYTEC Display Adapters
LCD-014-x and LCD-017-x are interchangeable and the same SBC /
Carrier Board combination might serve for different applications just by changing the adapter board and the software.
depicts the usage of the PHYTEC Display Adapters together
with the modular concept of the phyCARD Development Kit.
The PHYTEC Display Adapters LCD-014-x and LCD-017-x are insert-ready and provide connectivity to displays of different size and resolution, as well as to corresponding touch panels.
Precise specifications for the display populating the display adapter can be found in the applicable datasheet.
Software support for the display adapters is included within the latest
BSPs available for the different phyCARD SBCs.
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1
Display Adapter LCD-014-x / LCD-017-x
Figure 1:
2
Modular Concept of the PHYTEC phyCARD Development Kit family
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Introduction
•
•
•
•
•
•
•
The display adapters LCD-014-x and LCD-017-x offer the following features:
•
•
•
LCD-014-x suitable for 5" display PrimeView PD050VL1
LCD-017-x available with different 3.5", 5", 7" and 10.4" Prime
View displays
Compatible to the PHYTEC Display-Interface (PDI) with improved interference safety achieved by using separate connectors for data signals and power supply
Integrated power supply for LED backlight
Connectivity for 4-wire touch panels
Different options for brightness control (fixed via DIP-Switch; variable via PWM signal, or Trimming Potentiometer)
I
Ambient light photo sensor
2
C EEPROM for device recognition (only for x86-systems)
1-Wire EEPROM for internal use only
Can be mounted on top of an appropriate PHYTEC Carrier Board, or aside with a film hinge
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Display Adapter LCD-014-x / LCD-017-x
1.1
View of LCD-014-x
Figure 2:
4
Component side of LDC-014-x
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Introduction
1.2
View of LCD-017-x
Figure 3: Component side of LDC-017-x
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5
6
Display Adapter LCD-014-x / LCD-017-x
1.3
Minimum Requirements to Operate the Display
Adapters
1.3.1
PDI Power Supply Connector
Operation of the display adapters only requires supply of two input voltages (+3.3V with a 1A load and +5V with a 2A load) and the corresponding GND connections.
These supply pins are located at the PDI power connector X3:
LCD_5V: X3 4, 6, 8
Connect all power input pins to your power supply and all GND pins.
Corresponding GND: X3 1, 3, 5, 7, 9
There are also pins reserved for 12V backlight supply but currently not used.
Caution:
On a custom board we recommend connecting all available +5V input pins and at least the matching number of GND pins to the power supply system.
Please refer to
for more information.
1.3.2
PDI Data Connector
In order to drive a display at least the LVDS signals, 3V3 logic supply voltage, the /display_enable signal and GND are needed. If the display has touch, then you also need to connect the pins for the touch.
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Connectors
Please note that all connections are not to exceed their expressed maximum voltage or current. Maximum signal input values are indicated in this manual and the corresponding display data sheets. As damage from improper connections varies according to use and application, it is the user's responsibility to take appropriate safety measures to ensure that the module connections are protected from overloading through connected peripherals.
2.1
Carrier Board Connectivity (X5, X3)
The new concept of using display adapters such as the LCD-014-x and
LCD-017-x allows to attach a large number of different displays varying in resolution, signal level, type of the backlight, pinout, etc. to the baseboard using always the same connectors. The new PHYTEC
Display-Interface (PDI) has been designed in order not to limit the range of displays connectable. It consists of two universal connectors which provide the connectivity for the display adapter:
The display data connector combines all needed low-current interface signals.
The display power connector provides all voltages needed to supply the display and the LED backlight.
They also allow easy adaption to customer displays.
2.1.1
Display Data Connector (X5)
The display data connector at X5 (40 pin FCC connector 0,5mm pitch) combines various interface signals like LVDS, USB, I
2
C, etc. required to hook up a display, or a front panel, as well as the low-current supply voltage for the logic on the adapter board.
shows the pinout with signal names, descriptions, signal level voltages (column
SL) and signal directions (column I/O).
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Display Adapter LCD-014-x / LCD-017-x
Note:
Text in red indicates signals that are not used on the display adapters
LCD-014-x and LCD-017-x. They are included in the PDI specification to provide more functions for a customer designed display adapter or front panel (e.g. an integrated USB connector or power switch). Please refer to the Carrier Board section within the hardware manual of your phyCARD or phyCORE module to get information how to use these signals.
Pin # Signal name I/O SL Description
1
2
3
SPI_MISO
SPI_MOSI
SPI_CS 4
5
6
SPI_IRQ
LCD_3V3_S
7 I2C_SCL
O
I
3.3V
3.3V
SPI Master data in; slave data out
SPI Master data out; slave data in
8 I2C_SDA
9 GND
10 DISP_BRIGHT
+3V3 Logic Supply Voltage
I
2
C Clock Signal
I/O 3.3V
2
C Data Signal
Ground
I 3.3V
PWM brightness input (0%=dark,
100%=bright)1
+3V3 Logic Supply Voltage 11
12
LCD_3V3_S
PWR_KEY
13
14
DISP_ENA
PHYWIRE
15 GND
16
17
USB D+
USB D-
18 GND
19
DISP_LVDS_0-
20 DISP_LVDS_0+
I/O
I/O
I/O
3.3V Hardware Introspection Interface
Ground
USB
USB
USB data +
USB data -
Ground
I
I
LVDS2 LVDS data channel 0 negative input
LVDS LVDS data channel 0 positive input
8
1
: In order to control the brightness of the backlight with the DISP_BRIGHT signal DIP-Switch
S1 must be configured correctly (refer to section 2.3)
2
: LVDS voltage level, differential signal with a voltage swing of typically 300 – 400 mV
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Connectors
21 GND
22 DISP_LVDS_1-
23 DISP_LVDS_1+
24 GND
25
26
DISP_LVDS_2-
DISP_LVDS_2+
27 GND
28
29
DISP_LVDS_3-
DISP_LVDS_3+
30 GND
31 DISP_LVDS_CLK-
32 DISP_LVDS_CLK+
33 GND
I
I
I
I
I LVDS
I LVDS
I
I
LVDS
LVDS
LVDS
LVDS
LVDS
LVDS
Ground
LVDS data channel 1 negative input
LVDS data channel 1 positive input
Ground
LVDS data channel 2 negative input
LVDS data channel 2 positive input
Ground
LVDS data channel 3 negative input
LVDS data channel 3 positive input
Ground
LVDS clock channel negative input
LVDS clock channel positive input
Ground
34
ANA Bottom right corner
35
36
37
38
ANA depends
Top left corner
TS_Y+ I/O
ANA
Touch right corner
Controller
TS_WP
39 GND
40 LS_ANA
ANA
I/O
ANA
O
ANA
3.3V
Bottom left corner
Touch Screen Wiper Contact (5-wire only)
Ground
Photo sensor analog output
(0V=dark, ≥ 2.0V=bright)
Table 2: Display data connector signal description
The supply voltage LCD_3V3_S is always present when the carrier board is powered up. It is intended for supplying the photo sensor,
EEPROMs, etc. It should not be used to supply a display or backlight.
Only in case of connecting low-current displays, it might be possible to renounce the Display Power Connector.
The PWM signal at pin 10 for controlling the brightness of a display's backlight is generated by an LED dimmer.
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Display Adapter LCD-014-x / LCD-017-x
2.1.2
Display Power Connector (X3)
The display power connector X3 (AMP microMatch 8-188275-2) provides all supply voltages needed to supply the display and a backlight.
shows the pinout with pin names, descriptions and voltages.
Pin # Pin Name Voltage Description
1 GND
3 GND
5 GND
7 GND
Ground
3,3V power supply display / backlight
Ground
5V power supply display / backlight
Ground
5V power supply display / backlight
Ground
9 GND
11
12
12V_Backlight
12V_Backlight
5V power supply display / backlight
Ground
PWM brightness Input
(see
12.0 – 24.0 V Backlight power supply
12.0 – 24.0 V Backlight power supply
Table 3: Display power connector signal description
Caution:
On a custom board we recommend connecting all available +5V input pins and at least the matching number of GND pins to the power supply system.
Please refer to
for more information.
10
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PHYTEC Messtechnik GmbH 2011 L-758e_1
Connectors
2.2
Display Connectivity (X2)
The display connector X2 is specific to the Primeview Displays used by PHYTEC for these display adapters. In many cases other displays need another pin assignment or even a completely different connector.
Pin # Signal name SL Description
1 LCD_3V3_S 3.3V +3V3 Logic Supply Voltage
2 LCD_3V3_S
3 GND
4 GND
5 DISP_LVDS_0-
8
9
6 DISP_LVDS_0+
7 GND
DISP_LVDS_1-
DISP_LVDS_1+
10 GND
11 DISP_LVDS_2-
12 DISP_LVDS_2+
13 GND
14
15
DISP_LVDS_CLK-
DISP_LVDS_CLK+
16 GND
17 DISP_LVDS_3-
18 DISP_LVDS_3+
19 GND
20 GND
21 GND
1
22 GND¹
3.3V +3V3 Logic Supply Voltage
Ground
Ground
LVDS LVDS data channel 0 negative input
LVDS LVDS data channel 0 positive input
Ground
LVDS
LVDS
LVDS data channel 1 negative input
LVDS data channel 1 positive input
LVDS
LVDS
Ground
LVDS data channel 2 negative input
LVDS data channel 2 positive input
Ground
LVDS
LVDS
LVDS
LVDS clock channel negative input
LVDS clock channel positive input
Ground
LVDS data channel 3 negative input
LVDS LVDS data channel 3 positive input
Ground
Ground
Ground
Ground
Display connector signal description Table 4:
1
LCD-014 connects this to shield, but the connected display closes shield with GND
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Display Adapter LCD-014-x / LCD-017-x
2.3
Touch Screen Connectivity (X1, X16, X17, X18)
LCD-014 only has X1 for connecting the display’s touch. LCD-017 also has X16, X17 and X18 due to the fact, that every touch needs a different type of connector.
2.4
Backlight Connectivity (X4, X10, X11)
LCD-014 only has X4 for connecting the display’s backlight. LCD-
017 also has X10 and X11 because of different cable lengths of the different displays.
12
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Power
The display adapters operate off two supply voltages +3.3V and +5V.
They are already prepared for using a third supply voltage +12V up to
+24V for driving more powerful backlights.
Low-current +3.3V fed through the Display Data Connector X5 is intended for supplying the photo sensor, EEPROMs, etc. It should not be used to supply a display or backlight. Only in case of connecting low-current displays, it might be possible to renounce the Display
Power Connector. A green LED indicates power presence.
+3.3V with a 1A load will be fed through the Display Power
Connector X3. It supplies the display and the backlight converter. A green LED indicates power presence.
+5V with a 2A load will also be fed through the Display Power
Connector X3. It will be converted to the power needed for the backlight. A green LED indicates power presence.
Caution:
For maximum EMI performance we recommend as a general design rule to connect all GND pins to a solid ground plane.
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Display Adapter LCD-014-x / LCD-017-x
14
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Components
4.1
Backlight Converter
There are four possibilities how to drive the backlight, given by the settings of Dip switch S1. Please note that always only one of the four switches should be closed while the other three should remain open.
Mode Switch to close Brightness maximum ON 1
Poti 2
PWM 3
OFF 4
Table 5: Possibilities how to control backlight brightness
On LCD-017 it is important to adjust the output current to the attached display. For this purpose you’ll find Dip switch S2 and Dip switch S3.
S2 S3 Imax for Display open open 152mA 050V open close 213mA 070W close open 213mA 070W close close 258mA 104S
Table 6:
4.2
Adjusting output current
Ambient Light Photo Sensor
Intended to give you the possibility to adjust the brightness of the backlight automatically.
4.3
I
2
C-EEPROM
Reserved for further use with phyCARD-XL only.
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Display Adapter LCD-014-x / LCD-017-x
4.4
phyWIRE-EEPROM
This is for PHYTEC internal use only.
16
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Technical
The physical dimensions of the LCD-014 (PL1337.1) and LCD-017
(PL1344.0) are represented in
Power consumption LCD-017:
10,4”
LCD_3V3_S
7”
= 1mA
LCD_3V3_S
5”
= 1mA
LCD_3V3_S
3,5”
= 1mA
LCD_3V3_S = 1mA
Power consumption LCD-014:
LCD_3V3 = 1mA
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Display Adapter LCD-014-x / LCD-017-x
X6
Photosensor
U3
DISPLAY
050 V
TP6
TP8
TP7
TP9
TP10
X8
Figure 4:
185mm
LCD-014 Physical Dimensions
15mm
X7
TP4 TP1
32.5mm
X9
18
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PHYTEC Messtechnik GmbH 2011 L-758e_1
Technical
258.5mm
189mm
185mm
152.5mm
117mm
X14
X12
DISPLAY
104 S
X6
DISPLAY
070 W
DISPLAY
050 V
TP10
DISPLAY
035 V
TP6
TP8
TP7
TP9
X7
X8
LCD_5V
LCD_3V3
LCD_3V3_S
TP2
TP5
TP3
TP4
TP11
TP1
LCD_3V3_S
LCD_3V3
LCD_5V
12V_Backl.
VLED
GND
Photosensor
U3
X9
X13
178.5mm
263.5mm
268.5mm
Figure 5: LCD-017 Physical Dimensions
4mm
6.5mm
X15
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Display Adapter LCD-014-x / LCD-017-x
20
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Component Placement Diagram
X7
C7 C14
C6
TP3 TP5
X3
X5
U5
R31 R32
C23 C22
C15
U4
C21
C10
X2
X1
TP6
TP8
TP7
TP9
X4
C20
R33
R34
R35
Q2
C13
L1
U1
R6
R3
R30
R2
R1
C12
Q1
R16
TP10
R7
S1
U3
X6
X8
X9
C17
C16
Figure 6: LCD-014 Component Placement, Bottom View
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X10
X3
C6
C11
D2
R19
R20
D3
R10
R18
D1
X5
C7 C14
X16
C10
X2
U5
R32
C23
R31
C22
C15
R51
R52
U4
C21
C12
R33
R35
Q2
R34
C13
L1
U1
S3
S2
R2
U2
R1
R48
R47
Q1
S1
R7
X1
X4
X11
X18
R30
R42
R41
R43
X17
Figure 7: LCD-017 Component Placement, Bottom View
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Mounting to the phyBASE
The phyBASE Carrier Board provides a flexible development platform enabling quick and easy start-up and subsequent programming of the PHYTEC Extension Boards. The Carrier Board is compatible with all phyCARDs and its design allows easy connection of up to two extension boards as well as the display adapters. This supports a fast and convenient prototyping and software evaluation.
Note:
Only features of the phyBASE which are needed to support the functioning of the display adapters are described. Jumper settings and configurations which are not relevant for the use of the display adapters are not described in the following chapters.
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7.1
Controlling Touch with the phyBASE
Two touch screen controllers are available on the phyCARD Carrier
Board. The choice which controller is chosen to handle the signals from the touch screen is pegged to the audio standard supported by the phyCARD. phyCARDs supporting the AC'97 standard use the Wolfson
WM9712L at U1. Its dual functionality for audio and touch AC97 codec allows connecting 4- and 5-wire touch panels. The touch screen data is then available at the AC'97 interface. phyCARDs delivering HDA compliant audio signals use the Cirrus
Logic HDA Audio CODEC at U17 together with the STMPE811 touch panel controller at U28, which is suitable for 4-wire touch panels only. The touch screen data is then available at the I²C interface.
Switches 1 and 2 of DIP-Switch S3 select which controller is used to process the touch panel signals. The different configurations are
Button Setting Description
S3_1/
S3_2
0/0
0/1
1/0
1/1
Auto Detection: based on the high level of the
HDA_SEL/AC_INT signal generated on the phyCARD the Wolfson audio/touch contrl. (U1) is selected to process the signals from a touch screen and the AC'97 compliant audio signals.
Wolfson audio/touch contrl. (U1) is selected to process the signals from a touch screen and the AC'97 compliant audio signals.
Analog Devices audio contrl. (U17) selected for audio and STMPE811 touch contrl. (U28) for touch. not used
Table 7: Selection of the touch screen controller
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7.2
Photo Sensor
Mounting to the phyBASE
The Light sensor Analog Input extends to an A/D converter which is connected to the I
2
C bus at address 0xC8 (write) and 0xC9 (read).
7.3
Power Connector
The LED dimmer is connected to the I
2
C bus at address 0xC0 (write) and 0xC1 (read) by default. Alternatively jumper J2 allows to select
0xC2 (write) and 0xC3 (read).
In order to make 12V available for backlight, jumper JP2 must be closed.
Caution:
There is no protective circuitry for the 12V of the backlight! Close jumper JP2 only if the power supply connected to X28 of the phyBASE will not deliver more than 12V!
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Mounting to the phyBASE
An integral hinge is used in order to join baseboard and display adapter together mechanically. It is part of the display adapter and already mounted on it with two screws and an aluminum slat.
Fastening the integral hinge to the baseboard will be done the same way. Therefore PHYTEC ships the display adapter together with a separate aluminum slat and the baseboard comes with the needed screws. To be able to fold display adapter and baseboard together and to put this kit on a table in a stable manner, four plastic spacer bolts, four rubber plugs and two nuts also belong to the baseboard.
Figure 8: Preparing Baseboard and Display Adapter
Do the following steps:
•
•
Lay down the aluminum slat on the table.
Put the display adapter beside it so that the holes of its integral hinge match the holes of the aluminum slat.
•
Position the baseboard so that its corresponding two holes also match and that its corresponding border will be flush with the
aluminum slat as shown in Figure 8. It might be necessary to
flip the aluminum slat in order to achieve this.
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Display Adapter LCD-014-x / LCD-017-x
Figure 9:
•
Screwing
Put one screw through the wide opening of one plastic spacer bolt and screw it through the first hole of baseboard and integral hinge into the aluminum slat.
•
•
Do the same with a second screw and the second hole.
The remaining screws and plastic spacer bolts are to be mounted on the opposite side of the baseboard. Use the nuts for
Figure 10:
•
•
•
Rubber Plugs and Wires
Stuff the rubber plugs into the plastic spacer bolts.
Insert the ribbon cable into the ZIF socket and lock the socket.
Clip the connector of the second ribbon cable into the socket.
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Mounting to the phyBASE
Figure 11: The result...
Ready! Fold the two boards together and put the kit on its “feet”.
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Display Adapter LCD-014-x / LCD-017-x
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Revision
July 2011 numbers
Manual
L-758e_1
First edition
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Suggestions for Improvement
Document: Display Adapter LCD-014 / LCD-017
Document number: L-758e_1, June 2011
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