Analog Devices Blackfin Landscape LCD EZ-Extender... User manual

a
Blackfin®Landscape LCD
EZ-Extender®Manual
Revision 1.1, July 2012
Part Number
82-000216-01
Analog Devices, Inc.
One Technology Way
Norwood, Mass. 02062-9106

Copyright Information
© 2012 Analog Devices, Inc., ALL RIGHTS RESERVED. This docu-
ment may not be reproduced in any form without prior, express written
consent from Analog Devices, Inc.
Printed in the USA.
Disclaimer
Analog Devices, Inc. reserves the right to change this product without
prior notice. Information furnished by Analog Devices is believed to be
accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use; nor for any infringement of patents or other rights of
third parties which may result from its use. No license is granted by impli-
cation or otherwise under the patent rights of Analog Devices, Inc.
Trademark and Service Mark Notice
The Analog Devices logo, Blackfin, CrossCore, EngineerZone, EZ-Board,
EZ-Extender, EZ-KIT Lite, and VisualDSP++ are registered trademarks of
Analog Devices, Inc.
All other brand and product names are trademarks or service marks of
their respective owners.

Regulatory Compliance
The Blackfin Landscape LCD EZ-Extender is designed to be used solely
in a laboratory environment. The board is not intended for use as a con-
sumer end product or as a portion of a consumer end product. The board
is an open system design which does not include a shielded enclosure and
therefore may cause interference to other electrical devices in close prox-
imity. This board should not be used in or near any medical equipment or
RF devices.
The Blackfin Landscape LCD EZ-Extender is currently being processed
for certification that it complies with the essential requirements of the
European EMC directive 89/336/EEC amended by 93/68/EEC and
therefore carries the “CE” mark.
The Blackfin Landscape LCD EZ-Extender contains ESD (electrostatic dis-
charge) sensitive devices. Electrostatic charges readily accumulate on the
human body and equipment and can discharge without detection. Perma-
nent damage may occur on devices subjected to high-energy discharges.
Proper ESD precautions are recommended to avoid performance degrada-
tion or loss of functionality. Store unused extender boards in the protective
shipping package.

Blackfin Landscape LCD EZ-Extender Manual v
CONTENTS
PREFACE
Product Overview .......................................................................... x
Purpose of This Manual ................................................................ xi
Intended Audience ........................................................................ xi
Manual Contents ......................................................................... xii
What’s New in This Manual ........................................................ xiii
Technical Support ....................................................................... xiii
Supported Products ...................................................................... xiv
Product Information .................................................................... xiv
Analog Devices Web Site ........................................................ xiv
EngineerZone .......................................................................... xv
Related Documents ...................................................................... xvi
LANDSCAPE LCD EZ-EXTENDER INTERFACES
Landscape LCD EZ-Extender Setup .............................................. 1-2
LCD Display ................................................................................ 1-3
LCD Touch Controller (AD7879) ................................................. 1-4
Capacitive Touch Controller (AD7147) ......................................... 1-4

Contents
vi Blackfin Landscape LCD EZ-Extender Manual
Serial ROM .................................................................................. 1-5
Example Programs ........................................................................ 1-6
LANDSCAPE LCD EZ-EXTENDER HARDWARE
REFERENCE
System Architecture ...................................................................... 2-2
Jumper Settings ............................................................................ 2-3
AD7147 ADDR0 Jumper (JP1) ............................................... 2-4
LCD SPI Chip Select Jumper (JP2) ......................................... 2-4
LCD Touch SPI Chip Select Jumper (JP3) ............................... 2-5
LCD Reset Jumper (JP5) ........................................................ 2-5
PPICLK Disable Jumper (JP6) ................................................ 2-6
AD7147 ADDR1 Jumper (JP7) ............................................... 2-7
Serial ROM Addr Jumper (JP8) ............................................... 2-7
Serial ROM Write Protect Jumper (JP9) .................................. 2-8
AD7879 PENIRQ Jumper (JP10) ........................................... 2-9
AD7147 INT Jumper (JP11) ................................................... 2-9
Oscillator Disable Jumper (JP12) .......................................... 2-10
LCD Backlight Enable Jumper (JP13) ................................... 2-10
Connectors ................................................................................. 2-12
Expansion II PPI Connector (J1) ........................................... 2-13
Expansion II LSIO Connector (J2) ........................................ 2-13
PPI Stamp Connector (J3) .................................................... 2-13
LCD Connector (P1) ............................................................ 2-14

Blackfin Landscape LCD EZ-Extender Manual vii
Contents
LANDSCAPE LCD EZ-EXTENDER BILL OF MATERIALS
LANDSCAPE LCD EZ-EXTENDER SCHEMATIC
INDEX

Contents
viii Blackfin Landscape LCD EZ-Extender Manual

Blackfin Landscape LCD EZ-Extender Manual ix
PREFACE
Thank you for purchasing the Blackfin®Landscape LCD EZ-Extender®,
Analog Devices, Inc. extender board to the EZ-KIT Lite®/EZ-Board®
evaluation system for the ADSP-BF526, ADSP-BF537, ADSP-BF538,
and ADSP-BF548 Blackfin processors.
Blackfin processors are embedded processors that support a Media
Instruction Set Computing (MISC) architecture. This architecture is the
natural merging of RISC, media functions, and digital signal processing
characteristics towards delivering signal processing performance in a
microprocessor-like environment.
EZ-KIT Lites and Landscape LCD EZ-Extenders are designed to be used
in conjunction with the CrossCore®Embedded Studio (CCES) and Visu-
alDSP++®software development environments. The development
environment facilitates advanced application code development and
debug, such as:
• Create, compile, assemble, and link application programs written
in C++, C, and Landscape LCD EZ-Extender assembly
• Load, run, step, halt, and set breakpoints in application programs
• Read and write data and program memory
• Read and write core and peripheral registers
• Plot memory
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools.

Product Overview
x Blackfin Landscape LCD EZ-Extender Manual
Product Overview
The Blackfin Landscape LCD EZ-Extender is a separately sold daughter
board that plugs onto the expansion interface II of the ADSP-BF526
EZ-Board. The extender also plugs into the parallel peripheral interface
(PPI) connector of the ADSP-BF537, ADSP-BF538, or ADSP-BF548
EZ-KIT Lite evaluation system. The extender board aids the design and
prototyping phases of the ADSP-BF526, ADSP-BF537, ADSP-BF538, or
ADSP-BF548 processor targeted applications.
Please visit www.analog.com/EX2-LLCD for additional information, includ-
ing CCES support.
The board extends the capabilities of the evaluation system by providing a
connection between the PPI of the Blackfin processor and the on-board
3.5 in. LCD display. The serial peripheral interconnect (SPI) port and
TWI interface of the Blackfin processor are used to communicate to the
LCD display, AD7879 touch screen controller, AD7147 capacitive touch
controller, and the 2 KB serial ROM of the extender.
The following is a list of the Blackfin Landscape LCD EZ-Extender
interfaces.
• LCD display with touch capabilities:
• Sharp LQ035Q1DH02 3.5 in. LCD with resistive touch
• 320 (horizontal) x 240 (vertical) landscape
• 1.8V to 3.6V I/O operation
• LCD backlight
• LCD touch controller:
• Analog Devices AD7879 touchscreen controller
• 1.8V to 3.3V I/O operation

Blackfin Landscape LCD EZ-Extender Manual xi
Preface
• Capacitive touch controller:
• Analog Devices AD7147 capacitive touch controller
• Four push buttons and one scroll wheel
• 1.8V to 3.3V I/O operation
• No power supply required: derives power from the EZ-KIT
Lite/EZ-Board
• CE certified
• Dimensions: 3.75 in. (height) x 3.5 in. (width)
Before using any of the interfaces, follow the setup procedure in “Land-
scape LCD EZ-Extender Setup” on page 1-2.
Example programs are available to demonstrate capabilities of the Blackfin
Landscape LCD EZ-Extender board.
Purpose of This Manual
The Blackfin Landscape LCD EZ-Extender Manual describes operation and
configuration of the extender board’s components. A schematic and a bill
of materials are provided as a reference for future Blackfin processor board
designs.
Intended Audience
This manual is a user’s guide and reference to the Blackfin Landscape
LCD EZ-Extender. Programmers who are familiar with the Analog
Devices Blackfin processor architecture, operation, and development tools
are the primary audience for this manual.

Manual Contents
xii Blackfin Landscape LCD EZ-Extender Manual
Programmers who are unfamiliar with Analog Devices processors can use
this manual but should supplement it with other texts that describe your
target architecture. For the locations of these documents, see “Related
Documents”.
Programmers who are unfamiliar with CCES or VisualDSP++ should refer
to the online help and user’s manuals.
Manual Contents
The manual consists of:
• Chapter 1, “Landscape LCD EZ-Extender Interfaces” on page 1-1,
provides basic board information.
• Chapter 2, “Landscape LCD EZ-Extender Hardware Reference”
on page 2-1, provides information on the hardware aspects of the
board.
• Appendix A, “Landscape LCD EZ-Extender Bill of Materials” on
page A-1, provides a list of components used to manufacture the
EZ-Extender board.
• Appendix B, “Landscape LCD EZ-Extender Schematic” on
page B-1, provides the resources to allow EZ-Board or EZ-KIT
Lite board-level debugging or to use as a reference design. Appen-
dix B is part of the online help.

Blackfin Landscape LCD EZ-Extender Manual xiii
Preface
What’s New in This Manual
This is revision 1.1 of the Blackfin Landscape LCD EZ-Extender Manual.
The manual has been updated to include CCES information. In addition,
modifications and corrections based on errata reports against the previous
manual revision have been made.
For the latest version of this manual, please refer to the Analog Devices
Web site.
Technical Support
You can reach Analog Devices processors and DSP technical support in
the following ways:
• Post your questions in the processors and DSP support community
at EngineerZone®:
http://ez.analog.com/community/dsp
• Submit your questions to technical support directly at:
http://www.analog.com/support
• E-mail your questions about processors, DSPs, and tools develop-
ment software from CrossCore Embedded Studio or
VisualDSP++:
Choose Help > Email Support. This creates an e-mail to
[email protected] and automatically attaches
your CrossCore Embedded Studio or VisualDSP++ version infor-
mation and license.dat file.
• E-mail your questions about processors and processor applications
to:
[email protected] or
[email protected] (Greater China support)

Supported Products
xiv Blackfin Landscape LCD EZ-Extender Manual
•IntheUSA only, call 1-800-ANALOGD (1-800-262-5643)
• Contact your Analog Devices sales office or authorized distributor.
Locate one at:
www.analog.com/adi-sales
• Send questions by mail to:
Processors and DSP Technical Support
Analog Devices, Inc.
Three Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
Supported Products
The Blackfin Landscape LCD EZ-Extender is a daughter board for the
ADSP-BF526, ADSP-BF537, ADSP-BF538, and ADSP-BF548 processor
evaluation systems.
Product Information
Product information can be obtained from the Analog Devices Web site
and the online help.
Analog Devices Web Site
The Analog Devices Web site, www.analog.com, provides information
about a broad range of products—analog integrated circuits, amplifiers,
converters, and digital signal processors.
To access a complete technical library for each processor family, go to
http://www.analog.com/processors/technical_library. The manuals

Blackfin Landscape LCD EZ-Extender Manual xv
Preface
selection opens a list of current manuals related to the product as well as a
link to the previous revisions of the manuals. When locating your manual
title, note a possible errata check mark next to the title that leads to the
current correction report against the manual.
Also note, MyAnalog is a free feature of the Analog Devices Web site that
allows customization of a Web page to display only the latest information
about products you are interested in. You can choose to receive weekly
e-mail notifications containing updates to the Web pages that meet your
interests, including documentation errata against all manuals. MyAnalog
provides access to books, application notes, data sheets, code examples,
and more.
Visit MyAnalog to sign up. If you are a registered user, just log on. Your
user name is your e-mail address.
EngineerZone
EngineerZone is a technical support forum from Analog Devices. It allows
you direct access to ADI technical support engineers. You can search
FAQs and technical information to get quick answers to your embedded
processing and DSP design questions.
Use EngineerZone to connect with other DSP developers who face similar
design challenges. You can also use this open forum to share knowledge
and collaborate with the ADI support team and your peers. Visit
http://ez.analog.com to sign up.

Related Documents
xvi Blackfin Landscape LCD EZ-Extender Manual
Related Documents
For additional information about the product, refer to the following
publications.
Table 1. Related Processor Publications
Title Description
•ADSP-BF522/ADSP-BF523/ADSP-BF524/
ADSP-BF525/ADSP-BF526/ADSP-BF527
Blackfin Embedded Processor Data Sheet
•ADSP-BF534/ADSP-BF536/ADSP-BF537
Blackfin Embedded Processor Data Sheet
•ADSP-BF538/ADSP-BF538F Blackfin
Embedded Processor Data Sheet
•ADSP-BF542/ADSP-BF544/ADSP-BF547/
ADSP-BF548/ADSP-BF549 Blackfin
Embedded Processor Data Sheet
General functional description, pinout, and
timing of the processor
•ADSP-BF52x Blackfin Processor Hardware
Reference
•ADSP-BF537 Blackfin Processor Hardware
Reference
•ADSP-BF538/ADSP-BF538F Blackfin
Processor Hardware Reference
•ADSP-BF54x Blackfin Processor Hardware
Reference
Description of the internal processor architec-
ture and all register functions
Blackfin Processor Programming Reference Description of all allowed processor assembly
instructions

Blackfin Landscape LCD EZ-Extender Manual 1-1
1 LANDSCAPE LCD
EZ-EXTENDER INTERFACES
This chapter provides the setup procedure for the Blackfin Landscape
LCD EZ-Extender and EZ-KIT Lite/EZ-Board (ADSP-BF526,
ADSP-BF537, ADSP-BF538, or ADSP-BF548) and describes all inter-
faces the extender supports.
The information is presented in the following order.
•“Landscape LCD EZ-Extender Setup” on page 1-2
•“LCD Display” on page 1-3
•“LCD Touch Controller (AD7879)” on page 1-4
•“Capacitive Touch Controller (AD7147)” on page 1-4
•“Serial ROM” on page 1-5
•“Example Programs” on page 1-6

Landscape LCD EZ-Extender Setup
1-2 Blackfin Landscape LCD EZ-Extender Manual
Landscape LCD EZ-Extender Setup
It is very important to set up all components of the system containing the
Blackfin Landscape LCD EZ-Extender, then apply power to the system.
The following procedure is recommended for the correct setup.
1. Read the applicable design interface section in this chapter—the
text provides an overview of the interface capabilities.
2. Read “System Architecture” on page 2-2 to understand the physical
connections of the extender board. For detailed information, refer
to “Landscape LCD EZ-Extender Schematic” on page B-1.
3. Set the jumpers on the extender board. Use the block diagram in
Figure 2-1 on page 2-2 in conjunction with “Jumper Settings” on
page 2-3.
4. Set the switches and jumpers on the EZ-KIT Lite/EZ-Board. If not
already, familiarize yourself with the board documentation and
schematic drawings (see “Product Information”).
Compare the parallel peripheral interface (PPI) or expansion inter-
face II connector signals of the extender board with the EZ-KIT
Lite/EZ-Board signals to ensure there is no contention. For exam-
ple, it may be necessary to disable other devices connected to the
PPI or expansion II connector of the processor or disable the push
buttons on the EZ-KIT Lite/EZ-Board.
5. Install the extender on the EZ-KIT Lite/EZ-Board via the PPI or
expansion II connector.
6. Configure any other interfacing boards; for example, another
EZ-Extender board.
7. Power your system.

Blackfin Landscape LCD EZ-Extender Manual 1-3
Landscape LCD EZ-Extender Interfaces
LCD Display
The Blackfin Landscape LCD EZ-Extender is shipped with a 3.5 in. land-
scape, QVGA (320 x RGB x 240) display with an LCD backlight. All
LCD data, touchscreen pins, and power pins connect to the display via a
single connector (P1). The 18-bit display operates in 16-bit mode
(RGB 5-6-5) and connects to the PPI [15–0] data pins of the processor.
The display also uses the serial peripheral interconnect (SPI) port of the
processor for control register setup. The LCD display can operate at a
VDDIO of 1.6V to 3.6V. This allows you to connect the LCD display to
the PPI/SPI interface of the processor gluelessly, without the need for
voltage translation circuitry— a great benefit for power-sensitive
applications.
The PPI clock of a Blackfin processor and the clock required by the LCD
display are driven by the on-board 5 MHz oscillator. By default, the oscil-
lator is enabled and drives the PPI interface. You can use the clock
generated by the processor or can disable the 5 MHz oscillator by setting
the appropriate jumpers on the extender. See “Jumper Settings” on
page 2-3 for more information.
At power-up, the LCD backlight circuit is disabled. By default, the shut
pin of the LCD display turns the display OFF. Write to the respective con-
trol registers to enable the backlight and take the display out of the shut
mode. These settings provide significant power savings and are suited for
power-sensitive applications.
For more information about the LCD display, go to the Sharp Web site.
An example program demonstrating capabilities of the LCD display is
available in the Examples folder of the installation directory.

LCD Touch Controller (AD7879)
1-4 Blackfin Landscape LCD EZ-Extender Manual
LCD Touch Controller (AD7879)
The Blackfin Landscape LCD EZ-Extender is shipped with a low-cost
resistive touch controller (Analog Devices AD7879). The four pins gener-
ated by activating the LCD display (X+, X-, Y+, Y-) connect to a single
connector (P1), controlled via the LCD display. You can access the con-
troller via the SPI interface of the Blackfin processor. The controller
generates an interrupt request for the processor whenever any new data is
available or when a user touches the LCD Display. The processor uses the
SPI interface to read the appropriate registers of the AD7879 controller.
The IRQ line connects the AD7879 controller to the processor via the
processor’s general-purpose I/O (GPIO) pin. By default, the AD7879
controller uses the SPI select 1 and GPIO1 pins. “Jumper Settings” on
page 2-3 describe how the GPIO and SPI selects can be varied for differ-
ent EZ-KIT Lites and EZ-Boards.
For more information about the AD7879 touch controller, go to
www.analog.com and search for AD7879.
An example program demonstrating capabilities of the touch controller is
available in the Examples folder of the installation directory.
Capacitive Touch Controller (AD7147)
The Landscape LCD EZ-Extender is equipped with a CapTouch™ pro-
grammable controller (Analog Devices AD7147) for applications
implementing push buttons and scroll wheels. The four push button sen-
sors and one scroll wheel are located on the top side of the extender’s
printed circuit board (PCB).
When the respective sensor is activated, the captouch controller recognizes
and communicates the change to the Blackfin processor via the processor’s
2-wire interface (TWI). The AD7147 controller generates an interrupt
request for the Blackfin processor whenever any new data is available or