EPD Extension Kit User Manual
EPD Extension Kit
Model Name SK014AS0T1, SG020AS0T1, SM027AS0T1
龍亭新技股份有限公司 Pervasive Displays, Inc.
No.71, Delun Rd., Rende Dist., Tainan City 71743, Taiwan (R.O.C.)
Tel: +886-6-279-5399 / Fax: +886-6-270-5857 / http://www.pervasivedisplays.com
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Thank you for purchasing the EPD Extension Kit for low-power electrophoretic paper display (EPD) solutions. This document provides an overview of the Kit and is organized into five main sections: (1) the Kit contents and system requirements, (2) setup and preparation, (3) program firmware, (4) working with the Kit to drive EPD and (5) bridging with other development kit. You will find a glossary of acronyms and references at the end of this document.
The EPD Extension Kit consists EPD extension board and 2” (1.44” and 2.7”) EPD. The EPD extension board supports driving Pervasive Displays Inc. (PDI)’s 1.44, 2.0, and 2.7 inch
EPD modules. It has 20 pins socket at the rear side to stack on Texas Instruments (TI)’s
LaunchPad board. It also provides a 20 control pins connection with your product or development kit to drive EPD via SPI interface.
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2. Kit Contents and System Requirements
2.1 EPD Extension Kit
There are three models:
1.44” EPD Extension Kit 2” EPD Extension Kit
Model Name SK014AS0T1
1.44“ EPD with Extension board
2“ EPD with Extension board
2.7” EPD Extension Kit
2.7“ EPD with Extension board
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2.2 Hardware included in the kit
(1) EPD Extension Board
Quantity: 1 piece
The board has embedded EPD driving circuit, 40 pins EPD connector, two 10 pins socket and one 20 pins I/O connector. It also features 8M bits flash memory and temperature sensor on board. The 90 degree 20 pin connector will without box.
(2) PDI EPD
PDI Model Name
The EPD panel is made by PDI connects with extension board displaying content.
User does not need to program different size EPD driver codes to attached development kit (ex. LaunchPad). The packets from the demonstration software contain EPD information and display content in the appropriate size format.
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(3) Bridging Cable
Quantity: 1 piece
It’s for measuring EPD signals or bridging to other development kit/product.
(4) 40 pins Pin Header
Quantity: 1 piece
If your product or development kit has female type pin header and want to connect with EPD extension board for development, this male-male pin header is provided in kit.
2.3 Hardware excluded in the kit
(1) MSP 430 LaunchPad(MSP-EXP430G2)
It’s Texas Instruments (TI)’s MSP430 LaunchPad
Development Kit. To get started with EPD development by
EPD Extension Kit, user can purchase this box from TI’s official website or its distribution channels. The box contains one MSP-EXP430G2
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LaunchPad development board, one mini-USB cable and other accessories.
The MSP-EXP430G2 LaunchPad development board features: 14-/20-pin DIP (N) socket, built-in flash emulation for debugging and programming, 2 programmable
LEDs, 1 power LED, 1 programmable button and 1 reset button.
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There are two ways to install the demonstration tool. The first one is called “EDP Kit Tool” which is made by PDI and running on Microsoft Windows. This one will be introduced in this document later. The second one is available under Apache License, Version 2.0
GitHub at repaper community .
(1) EDP Kit Tool
This tool is packed as Windows installer. The Installer will install TI LaunchPad interface driver and demo images.
This EPD Kit tool provides a graphical user interface and enables the user to load bitmap images, run slide show and send ASCII code to the EPD for demonstration purposes. The source code of this tool is openly provided on PDI official website .
(2) Repaper software
The project code officially supports both the Arduino-based and Ti LaunchPad
The files include some conditional code to switch between the two platforms. For more details, please visit repaper.org
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2.5 System Requirements
To use the EPD Kit tool, the following hardware and software elements are required:
(1) A computer running Microsoft
(XP or later).
(2) From a hardware standpoint, a Windows
computer with at least one free USB port to connect with the LaunchPad board.
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3. Getting Started
This section provides instructions to set up the EPD Extension Kit with TI MSP-EXP430G2
LaunchPad and use the EPD Kit Tool to update content on EPD display.
There are five steps to prepare the Kit:
1. Program firmware to LaunchPad
2. Installing the EPD Kit Tool
3. Assembling the EPD Extension Kit with LaunchPad
4. Getting started with Kit
5. Working with EPD Kit Tool
3.1 Program firmware to LaunchPad
There are two approaches to update firmware to the MSP430 of LaunchPad.
(1) Using FET-Pro430 to Program MSP430
(2) Using TI CCStudio to Program MSP430
Please download “EPD Extension Board firmware code v#.# for TI LaunchPad (TI
CCStudio v5)” from PDi’s EPD Extension Kit webpage . Please extract the “.rar” file.
It’s CCStudio v5 project code. In the “Debug” folder, you are able to find an
“EPDExtensionBoard.out” file. We will need the firmware to program the MSP430
3.1.1 Using FET-Pro430 to Program MSP430
FET-Pro430 programming software is a software package designed to operate with existing programming adapters provided by Texas Instruments and other vendors. The
FET-Pro430 Lite can program Texas Instruments MSP430/CC430 Fxx family of microcontrollers via JTAG or USB interface.
If you don’t have TI’s CCStudio v5 installed, you can use this FET-Pro430 to update
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(1) Download the FET-Pro430 Lite software from Elprotronic. Elprotronic Inc.’s website . It’s free and about 19MB file size.
(2) Double click on FET-Pro430 Lite installer. The setup wizard appears automatically.
Click to begin the installation process.
(3) Once the installation program starts, on-screen instructions will guide you through the remainder of the installation. You must accept license agreement before using software.
Startup FET-Pro430 Lite and program firmware
(1) Use an USB to mini-USB cable that provided in the TI MSP-EXP430G2 LaunchPad box to connect between computer’s USB Port and LaunchPad’s mini-USB port.
USB port mini-USB port
UART” driver had installed in your computer and can be found under Ports (COM
& LPT) in your Device Manager.
(3) To start the FET-Pro430 Lite, click on the Lite/FET-Pro430 Elprotronic icon. The programming dialogue box shows as below:
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(4) Select the group of Microcontroller Type to “MSP430G2xx” and the second dropdown list to “MSP430G2553”.
(5) Click to select the firmware “.out” or “.hex” file to program the MSP-EXP430G2 LaunchPad. In the Open dialogue, select “TI’s CCE (*.out)” at
Files of type and point the file path to select the out file (“EPDExtensionBoard.out” in “Debug” folder) you will program onto MSP430 MCU.
(6) Make sure you have connected well the USB with MSP-EXP430G2 LaunchPad board. Click to start programming firmware.
“Pass” which means the (7) Please make sure you get the status programming process is run successfully.
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3.1.2 Using TI CCStudio to Program MSP430
(1) Please get ready the Texas Instruments Code Composer Studio (CCStudio) version 5 project code for LaunchPad kit. The default Workspace name is “EPD
Extension Board”. We suggest upgrading your CCStudio to version 5.4 above which is also our compiled version.
(2) Start your CCStudio. You will be asked to select a workshop. Please point to the
CCStudio workspace folder of this kit and click [OK].
(3) After entering the CCStudio IDE tool, the Project Explorer shows the code structure likes below.
(4) To compile the code and download the firmware to the LaunchPad, select from menu [Project] / [Build All (F9)] and wait for building complete.
(5) Click on the [Debug] button of tool bar or right click on the project to select
[Debug As] / [1 Code Composer Debug Session].
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(6) A progress information window will pop up and start to download firmware code to the MSP430 MCU of LaunchPad board. Once the download process is done successfully, this window will be closed. The LaunchPad board is now built and tested of the firmware code. You can start debugging the code.
Click the Terminate button go back to CCStudio Edit.
3.2 Installing EPD Kit Tool
(1) Download the installer of EPD kit tool from PDi Extension kit page. The installer name is “EPD Kit Tool v#.# Installer” where # is number for tool version.
(2) Double click the installer to start the installation.
(3) Follow the instructions on the screen to install the program. The installer will also install the driver (MSP430 Application UART) for the MSP-EXP430G2 LaunchPad to the computer.
(4) If you connect the MSP-EXP430G2 LaunchPad with computer via USB port now, the
Windows ® operation system will start to search the driver. You will find the “MSP430
Application UART” driver is installed under Ports (COM & LPT) in your Device Manager later.
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3.3 Assembling the EPD Extension Kit with LaunchPad
(1) Make sure the MSP430G2553 IC on LaunchPad
Both PDIP14 (14 pins) and PDIP20 (20 pins) devices of the
MSP430G2xx Value Line and the MSP430F20xx family can be inserted into the DIP IC socket of LaunchPad. Please make sure you connect the
LaunchPad with an inserted MSP430G2553 MCU (M430G2553) to the
IC1 socket. The code default supports MSP430G2553 MCU.
(2) Adjust the J3 and J5 jumpers of LaunchPad
The EPD extension board uses hardware UART, so the RXD and TXD of J3 jumper must change the orientation. The EPD extension board also uses the same pin of
LED2. The P1.6 of J5 needs to be opened.
(a) J3 jumper
The RXD and TXD are changed to horizontal orientation.
Default Change to
The jumper setting above is for MSP430 LaunchPad rev. 1.5. You can find the version number on Launchpad board. Please check it is “MSP-EXP430G2
Rev.1.5”. If your LaunchPad board is older than this version, please find the schematic of your LaunchPad board and jumped [TXD]-[P1.1] and
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(b) J5 jumper
Open the P1.6 of J5.
(3) Connect the EPD to the EPD extension board
Open the connector
Slide the FPC into connector
Close the connector
The picture below is connected with a 2” EPD on EPD extension board.
(4) Stack the EPD extension board on LaunchPad
There are two 10 pins socket at the rear of EPD extension board allows user to stack on MSP-EXP430G2 LaunchPad board. Please make sure the assembly direction of
EPD extension board to align with LaunchPad headers.
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The final installation diagram is as follows.
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3.4 Getting started with Kit
The section will introduce the EPD Kit Tool and how to update content by this tool.
After installing the EPD Kit Tool, the default program directory is located at “C:\Program
Files\Pervasive Displays\EPD Kit Tool”. There is some demonstration images at “EPD Kit
Tool\images” folder of User’s Documents.
(1) Overview of EPD Kit Tool
Scan the connected development kit/device
Preview the image will be updated on EPD
(2) Connect the kit to our computer
Detailed communication packets for developer
Please use the USB cable inside the MSP-EXP430G2 LaunchPad box to connect with
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the USB port of your computer and the mini-USB port of LaunchPad.
(3) Detect the development board
Click the [Scan] button to detect the supported connecting development board.
If the TI LaunchPad connects correctly, you will find the Device shows
“TI_LaunchPad(COMxx)” in the dropdown list. The COM port number should be different from this example.
Remember to click [Connect] button to get connection with the TI MSP-EXP430G2
LaunchPad. The [Connect] button will be changed to [Disconnect]. You can click on it to disconnect with LaunchPad if you don’t want to work with it later.
After connecting with the TI MSP-EXP430G2 LaunchPad, the Detail Log box will show some information likes firmware version and ambient temperature. It means you can start working with this kit set and tool now.
(4) Select the correct EPD size
Please choose the EPD size that you just connected with the EPD extension board.
The size selected must match the EPD size.
The dropdown list has 1.44”, 2” and 2.7” items and will show the corresponding resolution.
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3.5 Working with EPD Kit Tool
There are four group functions to update content on EPD with the EPD kit tool.
Drawing: to load image immediately; draw line, square, circle by provided coordinate
Slideshow: to preload images and set the slideshow effect on or off
type ASCII code and show the code on EPD without whole image update
Others: to load image by defined index; show temperature, firmware version and some control commands
You can click the [Load Image] button to select an image to show on EPD right away. Select the same size image matches the EPD size you just selected by last step. The default pop-up window will point you to the “Images” directory of User
Document generated by installer. The resolution information:
128 * 96
200 * 96
264 * 196
The preview window will show your selected image and convert it to 1 bit bitmap image format. This image will be sent to EPD immediately.
You can also select one of the three types “Line”, “Square” and “Circle”, and give
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the start and end coordinate to draw image. The X and Y limit the number to the maximum resolution of EPD size.
Click [Preview] button to confirm the drawing result. Click [Send] button to send this drawing to EPD.
The left side area is used for uploading image to flash memory by assigned index.
After uploading images, the right side area is used for defining how to play the slideshow effect.
Give the index number starts from 0 to 3. This tool allows preloading 4 images to flash memory. Type 0 and click [Load Image] to select an image. The image selected must match the panel size. The same steps to give number and click
[Load Image], until 3 if you want to show 4 images continuously. Every time you select an image, the image will be displayed on the EPD.
Set the range of numbers you want to apply the slideshow. For example, from 0 to 3 rd slide. Give an interval time by seconds between each image.
Click [ON] to enable the slideshow effect right away. You can check whether the
EPD is to display different image according to the defined time interval. Now, this slideshow function is able to play automatically without the EPD Kit Tool running.
You can connect an USB power adaptor with LaunchPad board via mini-USB port.
Click [OFF] to disable the slideshow function after connecting the kit and running with the EPD Kit Tool.
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Different from sending image to EPD that we just practiced, the ASCII function is to send ASCII code to EPD directly, not sending an image. The ASCII font has built-in kit, so the communication packets could be very short.
Click [Load Image] to select an image.
Give a coordinate X and Y to have the following content (ASCII code) shows on
EPD. For example, when X=30 and Y=0 (pixels) and type “1234567890ABCDE” characters, and then click [Preview]. You will find the string you just typed overwriting on the image at (30, 0) position. Click [Send] button to see the output immediately.
The preview area is just for reference, not the actual output effect. It is just a simulation result. The actual output on EPD is without text background transparent effect for the ASCII codes.
If you want to remove some characters, try to use space. For example: the first
ASCII codes outputs to EPD screen is “Hello World!”. If you want to show
“Hello!” and would like to clear the rest of characters after the exclamation mark, you can type “Hello! ” follows 6 spaces after the exclamation mark in the content text box and try to send it on EPD for reviewing.
This ASCII function presents partial update on EPD, not global update (full screen update). It is a demonstration only to show how to work with ASCII graphic library in code. After updating several times by transmitting ASCII string onto EPD, the contrast ratio of black and white color of other areas will become non-uniform. You can update an image and then continue this ASCII function. PDi also doesn’t guarantee the partial update performance.
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The other commands and functions are located here for user to get information from
EPD extension board.
Custom Image: It’s different from the load image at “Drawing” tab. The load image function at “Drawing” tab updates the image based on a continuous loop memory space to store image data. The Custom Image function here is to store image data by user assigned memory location. You can give the index number (0 to 7) and load image to EPD. The image data will store in assigned memory location. After uploading images, you can type the index number you want and click [Show Image] to show the image directly.
EPD Board: to detect whether the EPD extension board stacks on LaunchPad.
Reload: to reload the current image that had shown on EPD.
F/W Ver: to get the firmware version that had programmed in supported development kit.
Trigger LED: to turn on/off the LED1 on LaunchPad.
Clear All Flash: to clear all of the data in flash memory.
Temperature: to get the ambient temperature information.
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4. Bridging with Other Development Board
User can connect other development kit with the EDP extension board via provided 20 pins bridging cable.
4.1 Pin assignment
The table below is the 20 pins assignment of the bridging cable.
Pin No. Description Pin No. Description
10 /RESET 20 GND
These pins are all provided for LaunchPad kit.
The above values in parentheses like (SW2) are not connected and can be left open on non-LaunchPad kits.
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4.2 Connect via Bridging Cable
There will be a table listed under development kit gives the pin connections of the 20-pin male connector on Extension board.
User can download the firmware source code of each development kit on PDi Extension kit webpage. After programming the firmware to the following supported kits, the EPD Kit Tool will recognize the following IC vendor’s development kits after clicking [Scan] button. PDi will keep updating more supported development kits.
Looking at the Extension board oriented display side up (as front view above) and connector on the left. Pin 1 is the top left pin (the left column are all odd numbered pins) and pin 2 is immediately to its right (right hand column is all the even pins).
In each project code of development kit, there is Doxygen documentation (HTML format) and quick start guide to teach user how to setup and use the code to your product or developing project. The Doxygen or comments in code provide detail instruction for developers to design-in your EPD product.
(1) MSP-EXP430G2 LaunchPad
The LaunchPad is able to connect by this type as well.
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(2) Arduino Leonardo/Uno/Mega
How to connect with Arduino-based board, please refer to repaper.org
(3) Atmel Xplained Pro (SAM4L)
Connect the EPD Extension board to Atmel SAM4L Xplained Pro header marked as
EXT3 via the 20 pins cable.
SAM4L pin Kit pin
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13 BORDER_CONTROL PB04
14 SPI_MISO PA19
(4) Energy Micro EFM32 Giant Gecko Starter Kit (EFM32GG-STK3700)
Gecko pin Kit pin
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12 DISCHARGE PD7
13 BORDER_CONTROL PB12
14 SPI_MISO PD1
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5. Glossary of Acronyms
CCS, CCStudio Texas Instruments’ Code Composer Studio TM IDE development tool
Pervasive Displays, Inc.
Texas Instruments Corporation
Electrophoretic paper display
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