FDI ELI101-IPHW User manual
Copyright ©2020, Future Designs, Inc., All Rights Reserved
User’s Manual
ELI101-IPHW
ELI101-IPHW
Revision 1.03
ELI101-IPHW User’s Manual
5/28/20
Copyright ©2020
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Important Legal Information
Information in this document is provided solely to enable the use of Future Designs, Inc. (FDI) products.
FDI assumes no liability whatsoever, including infringement of any patent or copyright. FDI reserves the
right to make changes to these specifications at any time, without notice. No part of this document may be
reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without
the express written permission of Future Designs, Inc. 996 A Cleaner Way, Huntsville, AL 35805.
Microsoft, MS-DOS, Windows, Windows XP, Microsoft Word are registered trademarks of Microsoft
Corporation. Other brand names are trademarks or registered trademarks of their respective owners.
Printed in the United States of America.
For more information on FDI or our products please visit www.TeamFDI.com.
©2020 Future Designs, Inc. All rights reserved.
FDI Document PN: MA00086
Revision: 1.03, 05/28/2020
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Important Legal Information.......................................................................................................................... 2
Introduction......................................................................................................................................... 4
Recommended Accessories (Purchased Separately)........................................................................... 4
ESD Warning ...................................................................................................................................... 5
Determining the Revision of your ELI................................................................................................ 5
Technical Specifications ..................................................................................................................... 6
Mechanical and Mounting Details ...................................................................................................... 6
Connectors........................................................................................................................................... 8
Power Details ...................................................................................................................................... 8
Extended Display Information Data (EDID) .................................................................................... 10
Brightness Control............................................................................................................................. 10
PWM Control of Backlight............................................................................................................... 10
Support.............................................................................................................................................. 15
12.1 Where to Get Help......................................................................................................................... 15
12.2 Useful Links .................................................................................................................................. 15
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Introduction
About ELI (the Easy LCD Interface)
ELI®is Future Designs, Inc.’s family of long-life, plug-and-play embedded displays. ELI products
are true modular embedded display solutions that require no engineering or lead-time. All ELI
products are compatible with a wide range of single board computers including Raspberry Pi,
Beagle Bone Black and Windows-based units. FDI designed ELI as an embedded display option
that requires minimal development time to help customers reach production quickly. Once a
product is in production, FDI’s minimum 10-year ELI product availability guarantee helps ensure
production schedules without the risk of expensive or time-consuming redesigns. Learn more about
ELI at TeamFDI.com/ELI.
ELI Compatibility
ELI products are compatible with most Single Board Computers (SBCs), PCs and operating
systems. See the compatibility tab at https://www.teamfdi.com/product-details/eli101-iphw for the
results of FDI’s compatibility tests with popular operating systems and platforms. Our results, as
indicated in the table, demonstrate ELI versatility but the table is not exhaustive. ELI products are
designed to work with any single board computer that has an HDMI or DVI output. To submit a
question about ELI compatibility with a platform or operating system that is not included in the
Your ELI Experience
Share your experience connecting ELI devices to various SBCs at:
http://www.teamfdi.com/edid/#edidform.
Recommended Accessories (Purchased Separately)
•12V DC +/-5% 2A Power Supply with a center positive barrel plug
o2.1mm I.D. x 5.5mm O.D. x 9.5mm
oAll ELI units operate from +12V DC so this is the recommended power supply input
voltage for the entire Family.
oSee Section 8, Power Details, for more info.
•USB Type A to Mini Type B Cable (For touch)
•HDMI Cable (Type A Male)
•Lengths for the USB and HDMI cables will be determined by the ELI mounting location and
position in each user application.
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ESD Warning
Figure 1. Electrostatic Sensitive Device
Our ELI units are shipped in a protective anti-static package. Do not subject the module to high
electrostatic potentials. Exposure to high electrostatic potentials may cause damage to the boards that
will not be covered under warranty. General practice for working with static sensitive devices should
be followed when working with this device.
Determining the Revision of your ELI
All ELI units have a label placed on the board to identify the part number and revision of the unit.
This label will help you quickly identify your ELI part number and revision. An example of an ELI
label is shown below.
Figure 2. ELI Part Number & ELI Revision Number
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Technical Specifications
Table 1. Technical Specifications
Screen Size:
10.1 inches (diagonal)
Display Technology:
IPS a-Si TFT LCD
Resolution:
1280 x 800 (WXGA)
Brightness:
690 nits (typical)
Contrast Ratio:
800:1 (typ)
Aspect Ratio:
16:9
Interface Input Mode:
HDMI/DVI
Colors:
16.7M (24 bit)
Horizontal Viewing Angle:
85/85° L/R
Vertical Viewing Angle:
85/85° U/D
Surface:
1.1mm chemically strengthened Steel Glass
Touch Screen:
Projected Capacitive
Touch Screen Interface:
USB
Touch Panel Hardness:
>7H
Touch Panel Force:
N/A
Active Area:
216.96 (W) x 135.60 (H) mm
Response Time:
10 Ton, 15 Toff ms
Backlight:
45 LED
Backlight Life:
50K hours (typ)
Operating Temperature:
-20° to 70° C
Storage Temperature:
-30° to 80° C
Input Voltage:
+5 to +24 VDC + 5%
Power Consumption:
550mA (typ) / 650mA (max) @ 12VDC
Backlight Power Consumption:
Up to 61% of Power Consumption
USB Power Consumption:
50mA (typ) / 100mA (max) @ 5.0VDC
RoHS Compliant:
Yes
Dimensions:
251.2 (W) x 161.6 (H) x 19.0 (D) mm
Mounting:
3M 300LSE tape or other 3M tape
Weight:
380 grams
Mechanical and Mounting Details
A 2D Mechanical Drawing of the unit is available on our website under the Documentation tab
https://www.teamfdi.com/product-details/eli101-iphw
3D Mechanical Models (in both STEP and EASM format) are available from our website after
completing a simple fillable NDA or Non-Disclosure Agreement.
https://www.teamfdi.com/mechanicalmodelrequest
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The PCAP touch screen is bonded to the display in an industry standard and highly reliable manner.
However, it is not designed to carry the weight of the entire unit (plus stress from cable pull) when
the ELI101-IPHW is mounted in a flat or downward mounting configuration. It is critical that the
end user provide some type of backside mounting support to carry the weight of the assembly and
improve mounting stability and reliability. Two examples of backside mounting are shown below for
reference: red (backside post) and pink (backside edge). Each user application will be unique.
Figure 3. ELI101-IPHW Backside Mounting Examples
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Connectors
Figure 4. ELI101-IPHW Connectors
Power Details
A 12VDC +/- 5% power supply with a 2.0A output will power any board from the ELI Family. This
allows a common, off-the-shelf power supply such as the T1071-P5P-ND to be used for quick demos
or prototyping across the entire ELI Family. In general, any 12VDC power supply with a 2.1mm
center positive plug will be acceptable if it can provide enough current to power the ELI unit being
used. On the ELI101-IPHW plug power into the (P2) connector.
The ELI101-IPHW input power range is expanded to include +5 to 24V DC ± 5% (2.0A) for greater
design flexibility.
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For volume production applications, the input power can be optimized for your ELI unit and lower
capacity power supplies can be used.
In cases where the barrel connector is not desired, you can use the alternate power input connector
(J6) which supports directly plugging in 20-26 AWG wire with maximum 5A current per contact. The
datasheet for this J6 connector (PCB terminal block - PTSM 0,5/ 2-2,5-H SMD WH R24 –1814634)
can be found at http://tinyurl.com/1814634.
To verify that the ELI101-IPHW unit is correctly powered you may check the 12VDC input with a
Fluke meter or scope by probing the +12V and GND contacts shown below. Please verify that the
12VDC is present, is within the +/- 5% tolerance and is free from excessive noise or AC ripple.
Once the HDMI cable has been plugged in, the LCD PWR LED (LED12) will illuminate orange to
indicate that power is applied, and an HDMI signal has been received by the ELI unit. This does not,
however, indicate that the HDMI signal is valid for the resolution of the ELI101-IPHW, just that the
HDMI signal is present.
Note: If using an input that is within the acceptable range of +5VDC to +24VDC (+/- 5%),
please keep in mind that the 12V Test points should be at the voltage of your chosen power
supply (5-24VDC).
Figure 5. ELI101-IPHW Power Test Points
LCD Power LED
(LED12)
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Extended Display Information Data (EDID)
ELI uses Extended Display Identification Data (EDID) for automatic configuration with many
operating systems. You can find out more on our website at http://www.teamfdi.com/edid/.
Brightness Control
ELI101-IPHW contains a Brightness Control potentiometer (VR1) on the backside of the board, see
Figure 6. Using this pot, you can set the default “Factory” brightness of the LCD Backlight. Turning
the pot fully clockwise results in maximum brightness of the display. Turning the pot
counterclockwise will reduce the brightness and then turn the backlight off.
Figure 6. Brightness Control Potentiometer (VR1)
PWM Control of Backlight
ELI provides an input for an external processor or SBC to control the brightness of the display
backlight, see Figure 7. Changing the backlight brightness also changes the total ELI power
consumption (the display backlight is typically one of the larger sources of power consumption in the
unit). PWM dimming is an input with a 0 to 3.3 VDC range and the user should drive this with a
push-pull type output or a suitable open collector output.
Brightness Control Potentiometer (VR1)
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Figure 7. Backlight Control
To control the display backlight, the user should connect an externally generated Pulse Width
Modulated (PWM) signal to J3 pin 2 along with a common ground to J3 pin 3. The frequency range
for this signal is from 100Hz to 2KHz. Each ELI backlight properties vary, so the user should test
their version for an acceptable range of brightness control. For example, your 0 to 100% brightness
range may be 40% to 90% of the PWM range. In certain installations, a series resistor on J3 pin 2 may
be required to ensure a clean PWM signal to the ELI. The suggested value for the resistor is 100ohms.
See Figure 9 below, for example of connectivity. Actual testing in your installation may require this
resistor to be changed, or possibly not required at all.
On the ELI unit, the PWM dimming signal is pulled up between 1.49V and 0.487 volts. This is
controlled by the Linear Brightness Control Potentiometer (VR1), detailed in Section 10.0.
If you provide NO PWM signal to VLED_PWM (J3 pin 2), ELI will provide 100% backlight power
to the display (with the default potentiometer setting of 100%). The potentiometer setting can be
overdriven by the push-pull PWM input on J3-2, so the external SBC can always maintain control of
the backlight brightness across the full range. The potentiometer can be used to set a default backlight
brightness level that is used until the SBC has time to boot up and set the desired brightness level via
PWM output. This feature can also be used to “blank” the display during boot-up in cases where the
default BIOS settings aren’t compatible with ELI. This prevents the screen from showing incorrect
images until the SBC has time to boot and read EDID or set the correct video timings for the ELI101-
IPHW.
The output at pin 1 of J3 is 3.3VDC ± 5%. If the external system is capable of directly driving the
PWM dimming signal at 3.3VDC, there is no need to connect pin 1 to the cable. ELI provides the 3.3
VDC signal for the external system in case this voltage is needed to generate the correct levels on the
PWM VLED_PWM Input.
PWM Backlight
Dimming
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Figure 8. ELI101-IPHW Backlight Curve in Nits
Note: Pot VR1 has no effect while a PWM input signal is applied. The PWM input signal
overrides the VR1 pot setting.
The J3 mating connector information is provided below:
•Manufacturer: Hirose
•Part Number: DF12-3S-1.25C
•Digi-Key Link: https://www.digikey.com/products/en?keywords=H2180-ND
•Pre-terminated wires https://www.digikey.com/products/en?PPV=1811-9-566967
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Figure 9. Raspberry Pi Signal and Ground
The ELI backlight can be controlled from a Raspberry Pi. See Figure 9 for a wiring diagram. Our software
is available on the FDI website at https://www.teamfdi.com/product-details/eli101-iphw#software or you
may copy the code from here:
/* Changes brightness of ELI backlight given a command line argument between 0 and
the set range. Uses bcm2835 header file provided by Broadcom at
http://www.airspayce.com/mikem/bcm2835/bcm2835-1.52.tar.gz This source code must be
compiled using "g++ brightness.cpp -o brightness -l bcm2835"in order to properly
link the header file. Must be run using sudo, accessing GPIO pins requires root
permissions. After compiling, you may add executable to "/usr/bin" which allows you
to type "sudo brightness <value>" to change brightness anywhere in terminal. The
"/boot/config.txt" file must also be changed by adding a "#" before the line
"dtparam=audio=on". This disables audio output from the Raspberry Pi. If this is
not disabled then anytime sound is output the screen will return to 100%
brightness.
*/
#include<iostream>
#include<bcm2835.h>
#include<string>
using namespace std;
#define LED RPI_GPIO_P1_12 // PWM pin number for backlight control
#define RANGE 20 // Range for PWM steps
#define CLOCK 1920 // Clock rate
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int main(int argc,char *argv[]){
int data =0;// Brightness level
if(argc != 2){ // Give user correct usage if ran incorrectly
cout << "Error: correct usage, brightness <value>" << endl;
return 1;
}
data =stoi(argv[1]);
if(data >RANGE || data <0){
cout << "Error: brightness value must be between 0 and " << RANGE << endl;
return 1;
}
if(!bcm2835_init())
return 1;
bcm2835_gpio_set_pad(BCM2835_PAD_GROUP_GPIO_0_27,BCM2835_PAD_DRIVE_2mA); //
Sets the drive current to 2mA
bcm2835_gpio_fsel(LED,BCM2835_GPIO_FSEL_ALT5); // Sets up pin 18 for alt5 pwm
mode
bcm2835_pwm_set_clock(CLOCK); // Sets pwm clock to 19.2 MHz / CLOCK
bcm2835_pwm_set_mode(0,1,1); // Sets mode to markspace
bcm2835_pwm_set_range(0,RANGE); // Sets range
bcm2835_pwm_set_data(0,data); // Sets data rate to argument value
bcm2835_close();
return 0;
}
Figure 10. Backlight Control Using Raspberry Pi
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Figure 11. Renesas Synergy S7G2 Signal and Ground
Another example of backlight control using a microcontroller is Renesas Synergy S7G2 wired as shown in
Figure 11. The software for Synergy can be found on our website at https://www.teamfdi.com/product-
details/eli70-iphw#software.
Support
12.1Where to Get Help
Online technical support is available at http://www.teamfdi.com/support/
12.2Useful Links
•Future Designs, Inc. Forums: http://www.teamfdi.com/forum
•ELI101-IPHW Product Page: http://www.teamfdi.com/product-details/eli101-iphw
•ELI Software User’s Manual: http://www.teamfdi.com/wp-content/uploads/ELI-Software-
Users-Manual.pdf
•Tell us about your ELI experience: http://www.teamfdi.com/edid/#edidform
•EDID Information Page: http://www.teamfdi.com/edid/
Table of contents
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