FDI ELI70-CP User manual

Copyright ©2020, Future Designs, Inc., All Rights Reserved
User’s Manual
ELI70-CP
ELI70-CP
Revision 1.00

ELI70-CP User’s Manual
8/4/2020
Copyright ©2020,
Future Designs, Inc.
Page 2of 14
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: MA00072
Revision: 1.00, 8/4/2020

ELI70-CP User’s Manual
8/4/2020
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Future Designs, Inc.
Page 3of 14
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........................................................................................................................................... 7
Power Details ...................................................................................................................................... 7
Extended Display Information Data (EDID) ...................................................................................... 8
PWM Control of Backlight ................................................................................................................. 9
Support .............................................................................................................................................. 14
11.1 Where to Get Help......................................................................................................................... 14
11.2 Useful Links .................................................................................................................................. 14

ELI70-CP User’s Manual
8/4/2020
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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, BeagleBone 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 10-15 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, PCs and operating
systems. See the compatibility tab at https://www.teamfdi.com/product-details/eli70-cp 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 table, contact a member of the FDI support team at
[email protected].
Your ELI Experience
Share your experience connecting ELI devices to various (single board) computers 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 devices have a label placed on the board to identify the part number and revision of the unit.
This label will help you quickly and correctly identify your ELI unit’s part number and revision
number. An example of an ELI label is shown below.
ELI Part Number ELI Revision Number

ELI70-CP User’s Manual
8/4/2020
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Technical Specifications
Table 1. Technical Specifications
Screen Size:
7.0 inches (diagonal)
Display Technology:
a-Si TFT Active Matrix LCD
Resolution:
1024 x 600 (WSVGA)
Brightness:
380 nits (typical)
Contrast Ratio:
800:1 (typ)
Aspect Ratio:
16:9
Interface Input Mode:
HDMI/DVI
Colors:
16.7M (24 bit)
Horizontal Viewing Angle:
80/80° L/R
Vertical Viewing Angle:
60/70° U/D
Surface:
0.7mm steel glass cover
Touch Screen:
Projected Capacitive (PCAP)
Touch Screen Interface:
USB
Touch Panel Hardness:
>6H
Touch Panel Force:
120gF (max)
Active Area:
154.21 (W) x 85.92 (H) mm
Response Time:
30ms
Backlight:
27 LED (9S x 3P)
Backlight Life:
30K hours (typ)
Operating Temperature:
-20° to 70° C
Storage Temperature:
-30° to 80° C
Input Voltage:
+5.0 to +24.0 VDC + 5%
Power Consumption:
500mA (typ) / 650mA (max) @ 12VDC
Backlight Power Consumption:
Up to 73% of Power Consumption
USB Power Consumption:
50mA (typ) / 100mA (max) @ 5.0VDC
RoHS Compliant:
Yes
Dimensions:
169.5 (W) x 150.0 (H) x 29.7 (D) mm
Mounting:
#8 screw mounts in 4 corners
Weight:
255 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/eli70-cp#documentation
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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Connectors
Figure 2. ELI70-CP Connectors (Similar model with the same connectors shown)
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 ELI70-CP plug power into the (P2) connector.
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
(J4) with supports directly plugging in 20-26 AWG wire with maximum 5A current per contact. The
datasheet for this J4 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 ELI70-CP 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, and is free from excessive noise or AC ripple.

ELI70-CP User’s Manual
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Figure 3. ELI70-CP Power Test Points
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/.

ELI70-CP User’s Manual
8/4/2020
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PWM Control of Backlight
Figure 4. PWM Backlight Control
J3 mating connector housing information:
•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
ELI provides an input so an external processor or SBC can control the backlight to vary the display
brightness or to reduce 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.
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 5KHz to 100KHz. Each ELI unit’s display backlight properties will 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 is provided to the ELI. The
suggested value for the resistor is 100ohms. See Figure 6 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 to LCD_VDD providing 100% backlight
power when no PWM signal is applied at pin 2 of J3. If nothing is connected to J3 the ELI will drive
the display at 100% brightness (default).
The LCD_VDD output at pin 1 of J3 is a 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, called LCD_VDD, for the external system in case this voltage is needed

ELI70-CP User’s Manual
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to generate the correct levels on the PWM Dimming Input.
Figure 5. ELI70-CP Backlight Curve in Nits
0
50
100
150
200
250
300
350
400
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Nits
Nits

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Figure 6. Raspberry Pi Signal and Ground
The ELI backlight can be controlled from a Raspberry Pi. See Figure 6 for a wiring diagram. Our software
is available on the FDI website at https://www.teamfdi.com/product-details/eli70-cp#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 192 // Clock rate

ELI70-CP User’s Manual
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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 7. Backlight Control for Raspberry Pi

ELI70-CP User’s Manual
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Figure 8. Renesas Synergy S7G2 Signal and Ground
The ELI backlight can also be controlled from a Renesas Synergy S7G2 wired as shown in Figure 8. The
software for Synergy can be found on our website at https://www.teamfdi.com/product-details/eli70-
cp#software.

ELI70-CP User’s Manual
8/4/2020
Copyright ©2020,
Future Designs, Inc.
Page 14 of 14
Support
11.1 Where to Get Help
Online technical support is available at http://www.teamfdi.com/support/
11.2 Useful Links
•Future Designs, Inc. Forums: https://www.teamfdi.com/forums/
•ELI70-CP Product Page: http://www.teamfdi.com/product-details/eli70-cp
•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/