Midas MDT0700A11OS-RGBHDMI-KIT1 User manual

MIDAS Starter Kit
MDT0700A11OS-RGBHDMI-KIT1
Telephone
[phone]
Email [e-mail]
Website www.midasdisplays.com
Issue: 2 Date: 21/08/2019

Midas Displays Issue: 2 Date: 21/08/2019
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Document history
Issue
#
Author/ Editor
Issue
Date
Changes to this document.
Preliminary
IA
24/05/2019
Started Document
1.0
IA
29/05/2019
First Release
2.0
IA
06/08/2019
Updated part list & description.
3.0
MW
21/08/19
Highlighted solder link configuration and
updated RPI config.txt data.

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Table of Contents
Document history ............................................................................................................................................... 1
1. Introduction..................................................................................................................................................... 3
1.1. Components included (parts list) ............................................................................................................. 3
1.2. Obtainable from link on box label............................................................................................................ 3
2. How to connect ............................................................................................................................................... 4
3. Other configurations ....................................................................................................................................... 6
3.1. Raspberry Pi config file............................................................................................................................. 6
3.2. Alternative Solutions ................................................................................................................................ 7
4. Troubleshooting .............................................................................................................................................. 7
Legal Disclaimer .................................................................................................................................................. 8

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1. Introduction
Just as the name suggests, the MIDAS Starter Kit is here to get you started with your project using our range
of products. Our starter components included with this kit will make it easier to connect and setup the display
with a Raspberry Pi or other compatible devices (see chapter 3.2).
1.1. Components included (parts list)
•MDT0700A11OS-RGB (display)
•MDIB-11
•HDMI cable
•2-pin 5V power cable
1.2. Obtainable from link on box label
•MDT0700A110S-RGB Specification
•Application Note (this document)
•MDIB-11 Specification
•RPI config.txt file (see chapter 3.1)
2-pin power cable
MDIB-11
HDMI cable
MDT0700A11OS-RGB

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FIGURE 1–ALL PARTS INCLUDED IN THIS KIT
2. How to connect
Before you start, please ensure that the solder links on the MDIB-11 board are correctly soldered. These pins
will select the appropriate current for the display and if they are not set correctly they could cause damage.
Link
Signal
Function
LK2
ST
Low RGB Data drive strength (LK1 open) DEFAULT
LK4
PIX
One pixel per clock (LK3 open) DEFAULT
LK6
#STAG
Staggered pixel output (LK5 open) DEFAULT
LK8
Pixel Clock
RGB Data clocked on -Ve edge (LK7 open) DEFAULT
For more details check the MDIB-11 specification
LED Backlight Current selection 0=open 1=linked
LK12
LK11
LK10
LK9
Current
1
1
0
1
155mA
For more details check the MDIB-11 specification

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Our hardware is designed to be “plug & play” meaning that you simply need to plug the components together
as shown in the picture below:
After you connect the MDIB-11 with the display, HDMI and power cable, please connect the other end of the
HDMI cable to a Raspberry Pi or other device
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of your choice that has a HDMI port. IMPORTANT NOTICE: Please
ensure you connect the FFC the correct way round, otherwise you could damage the display. Both the board
and FFC/FPC are labelled with “1” for pin 1, indicating which side to connect them (see figure 2 above).
For more advanced options, the MDIB-11 can be set up for specific functions. For these options you will need
a soldering iron, as the board is equipped with solder links that are used for making a selection. For example,
the board supplies 5V to the display’s backlight from the HDMI port. If you wish to supply power to the display
from the HDMI connection, you can solder Link 17 from the back of the MDIB-11. Please refer to the MDIB-11
datasheet for more details.
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Please be aware that this guide is for using Raspberry Pi with the Raspbian OS, so if you choose an alternative
device or OS (operating system) you may need to use different configuration settings (see chapter 3.2).
MDIB-11
MDT0700A11OS-RGB
HDMI cable
FIGURE 2-CONNECTING IT ALL TOGETHER
2-pin 5V
Power Cable
Pin 1

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3. Other configurations
Apart from setting up the hardware, you may need to do some software configurations for better
compatibility. Typically displays with an RGB, LVDS or HDMI interface require specific timings for correctly
displaying an image. These timings are usually configured and stored in an EDID file (usually found in desktop
monitors). Our MDIB-11 boards are already programmed (flashed) with EDID settings, but sometimes the EDID
may not be recognised by the device connected to the display, in which case additional settings will be
required. Fortunately Raspberry Pi offers an easy solution to configure these settings, and that is through a
configuration file called “config.txt” and we will discuss this below.
3.1. Raspberry Pi config file
The config.txt file is stored in the /boot directory on the Micro SD card, where the Raspbian OS (operating
system) is stored. This file contains various lines of code/instructions for various configurations, including
HDMI timings. Here you can manually customize the timings for the display that you want to use or you can
simply use our pre-customized config.txt file (see figure 3).
FIGURE 3-EXAMPLE OF A CONFIG FILE

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If you download our config file, then simply use it to replace the current config file in the boot folder.
Alternatively, if you choose to edit the file manually, you can just add the following lines of code at the end of
the existing config.txt file.
hdmi_group=2
hdmi_mode=87
hdmi_timings=800 0 210 3 45 480 0 21 9 22 0 0 0 60 0 33000000
Congratulations! You can now use the MDT0700A11OS-RGB display with your Raspberry Pi.
For more information about the Raspberry Pi config settings please refer to the following website:
https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
3.2. Alternative Solutions
Our kit is designed and tested to work with Raspberry Pi and Raspbian OS, but also offers compatibility for
alternative solutions. If you are planning to use an alternative device or a different OS, then you may need to
find similar settings. The most important configuration is to have the correct resolution set-up, which is usually
defined along with the HDMI timings or in some display/monitor menu. The HDMI timings for this display can
be found in the MIDAS Specification document (also available on Farnell).
If you still need more help for using an alternative device or OS, feel free to contact our technical support team
and one of our engineers will guide you through a solution. In the future we hope to add more information on
this guide for alternative solutions.
Other useful links:
•https://wiki.ubuntu.com/X/Config/Resolution For Ubuntu OS installed on Raspberry Pi.
•https://elinux.org/RPiconfig More information on RPi config.
4. Troubleshooting
Please ensure that you follow all the instructions correctly. If you are still having trouble getting your display
to work, then feel free to contact us (details on the front cover page).

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Legal Disclaimer
THIS INFORMATION / SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.