AVR32907: AT32UC3C-EK Getting Started Guide

AVR32907: AT32UC3C-EK Getting Started Guide
Features
• Powering up the board
• Block diagram
• Using the preloaded firmware
1 Introduction
32-bit
Microcontrollers
Application Note
The Atmel® AT32UC3C-EK is a reference design and development system for the
Atmel® AVR® 32-bit AT32UC3C0512C microcontroller. The kit is equipped with a
rich set of peripherals that make the AT32UC3C-EK a perfect evaluation platform.
This guide shows the user how to quickly get started with this kit.
Figure 1-1. AT32UC3C-EK board
Rev. 32137A-AVR-10/10
2 Getting started
2.1 Powering up the board
The Atmel AT32UC3C-EK offers four interfaces to power the board: from the USB
virtual COM port (USB VCP) interface, from the USB USER interface, or from an
external source connected to either the J1 or J2 header. If two power sources are
applied at the same time, the following priorities are used to select the current valid
power source:
1.
2.
3.
4.
USB VCP (J27)
USB USER (J21)
External power supply jack (header J1)
External power supply two-pin header (header J2)
This means that if the board is connected to a USB host, it has the highest priority
and will, therefore, serve as the current power supply. Other power supplies that are
connected to the board at the same time will be ignored.
The input range on the external power supply header is from 3.3V to 5V for J2 and
from 9V to 12V for J1.
To power the board from the USB VCP or from the USB USER connector, use the
Mini-B plug to std-A plug 1.5m USB 2.0 cable that is included in the kit, and connect it
between the host and the board USB VCP connector.
When the board is powered, the green LED (marked POWER) will light up and the
default board firmware will start to run.
More information about the different power inputs is available in the hardware user’s
guide.
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Figure 2-1. Possible power input interfaces on the AT32UC3C-EK
(J27) USB VCP
(J21) USB User
(J1) Power Supply Jack
(J2) Power Supply 2-pin header
2.2 Connecting the CAN interface
The Atmel AT32UC3C-EK offers two CAN interfaces to connect the board to external
CAN networks:
1. DB9 connector CAN Node 1
2. DB9 connector CAN Node 2
Table 2-1. CAN connector DB9 pin-out
Pin #
Signal Names
Signal Description
1
Reserved
2
CAN_L
Dominant Low
3
CAN_GND
Ground
4
Reserved
5
CAN_SHLD
Shield, optional
6
GND
Ground
7
CAN_H
Dominant High
8
Reserved
9
CAN_V+
Power, optional
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Figure 2-2. CAN connector DB9 pin-out
1 2
6
3
7
4
5
8 9
The preloaded firmware requires a loopback between CAN Node 1 and CAN Node 2.
That means that one of the 2-pin cables delivered in the kit should be used to
connect:
CAN Node 1 pin 2 Å-------------------------Æ CAN Node 2 pin 2
CAN Node 1 pin 7 Å-------------------------Æ CAN Node 2 pin 7
Figure 2-3. CAN loopback on the AT32UC3C-EK
2.3 Connecting the LIN interface
The Atmel AT32UC3C-EK offers two LIN interfaces to connect the board to external
LIN networks:
1. 3-pin header connector LIN Node 1
2. 3-pin header connector LIN Node 2
The pinout is hsown in Table 2-2.
Table 2-2. LIN connector three-pin header
Pin #
Signal Names
Signal Description
1
GND
Ground
2
LIN
LIN Bus
3
VBAT
Power Supply
The preloaded firmware requires a loopback between LIN Node 1 and LIN Node 2.
This means that one of the two-pin cables delivered in the kit should be used to
connect:
LIN Node 1 pin 1 Å-------------------------Æ LIN Node 2 pin 1
LIN Node 1 pin 2 Å-------------------------Æ LIN Node 2 pin 2
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2.4 Using the preloaded firmware
The preloaded application,
AT32UC3C_EK_CAN_LIN_LOOPBACKS_DEMO
is located under the directory,
APPLICATIONS/AT32UC3C_EK_CAN_LIN_LOOPBACKS_DEMO
The source code of the application can be found in the AVR UC3 Software
Framework (see section 4.3).
Figure 2-4. Default application running
CAN
Use the arrow to
select the menu
Microphone
Potentiometer
LIN
This application gathers potentiometer data, displays it, and sends it to the CAN and
LIN loopback interfaces. The graphical user interface (GUI) also displays CAN and
LIN network and microphone activity.
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Figure 2-5. Graphical user interface
The GUI is composed of four items:
• Potentiometer and microphone
The potentiometer and the microphone are connected to ADC channels. The
potentiometer and microphone values are displayed in the potentiometer and
microphone boxes, respectively.
• CAN
The potentiometer value is sent via the CAN bus through CAN Node 1 and is
received by CAN Node 2. The message content is displayed in the CAN box.
• LIN
The LIN message built from CAN Node 2 is sent on the LIN bus through LIN Node
1 and received by LIN Node 2. The content of this LIN message received by LIN
Node 2 is displayed in the LIN box.
Touching:
o the RIGHT (>) pad highlights the potentiometer item
o the LEFT (<) pad highlights the microphone item
o the UP (^) pad highlights the CAN item
o the DOWN (v) pad highlights the LIN item
o the PLAY/PAUSE (>/||) focuses the highlighted item
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3 AT32UC3C-EK block diagram
Figure 3-1. AT32UC3C-EK block diagram
4 References and further information
What is the next step?
If you want more detailed information concerning the hardware of this kit, if you want
to check out all existing application notes and software running on this kit, if you want
to start a development whether for evaluation or rapid prototyping, the following
sections list the main available resources to actually get beyond getting started:
•
•
•
•
•
Schematics and BOM
Application notes
Software framework
Tools
Support
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4.1 Detailed hardware references (and associated errata)
More detailed hardware information for this kit can be found in two places:
• In the 32-bit AVR Studio®: contains the schematics, a logical block diagram, and
the errata
• The file AT32UC3C-EK_Hardware-References.zip, available on the Atmel web
page dedicated to this kit: www.atmel.com/
The Atmel® AVR® AT32UC3C family of devices is specified in the UC3C Series
datasheet. Always use this document as a reference throughout the development life
cycle of an application destined to run on a UC3C device.
The 32-bit AVR architecture manual can be found here:
http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf
The 32-bit AVR UC technical reference guide can be found here:
http://www.atmel.com/dyn/resources/prod_documents/doc32002.pdf
4.2 Application notes running on this kit
Several application notes are supported by this kit to enable you to further investigate
the Atmel® AT32UC3C and/or the Atmel AT32UC3C-EK. These can be found on the
ATMEL web page dedicated to this kit: www.atmel.com/. All the 32-bit AVR
application notes can be found on this Atmel web page:
http://www.atmel.com/dyn/products/app_notes.asp?family_id=607
NOTE
Some application notes are bundled with a standalone software package. To be able
to build the software example, program the binary, and step through the code in
debug mode, tools are necessary: references to the tools are mentioned in all
application notes, but are also given here below.
4.3 Software framework
To start a development, whether for evaluation or rapid prototyping, the 32-bit AVR
Software Framework is a complete and useful source of existing source code a
developer can start from. It has been designed to help developers glue together the
different components of a software design and easily integrate them into an operating
system (OS), as well as to operate in a standalone way.
The 32-bit AVR Software Framework is available in two formats:
• As a standalone zip package containing IAR® projects and GNU makefile projects,
downloadable from this Atmel web page: http://asf.atmel.no/source/asf-2.0.0.zip
• As a plug-in in 32-bit AVR Studio that allows the user to create pre-defined
example 32-bit AVR Studio projects and to add pre-written drivers to existing 32bit AVR Studio projects:
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4116. This web page
also contains all 32-bit AVR Studio-related application notes.
To be able to build the software example, program the binary, and step through the
code in debug mode, other tools are necessary: references to these tools are
provided here below
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4.4 Tools
To be able to develop applications for 32-bit AVR devices, build binaries for 32-bit
AVR targets, and program a 32-bit AVR device, Atmel and its partners provide
several tools supported on multiple host targets.
4.4.1 IDE and compilers: design software
• 32-bit AVR Studio: 32-bit AVR Studio is a free integrated development
environment (IDE) for AVR32 that enables you to write, build, deploy, and debug
your C/C++ and assembler code. It also includes the 32-bit AVR Software
Framework plug-in:
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4116. This web page
also contains all AVR32 Studio-related application notes
• 32-bit AVR GNU Toolchain: 32-bit AVR GNU Toolchain is a set of standalone
command line programs used to create applications for 32-bit AVR
microcontrollers: http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4118
• IAR Embedded Workbench®: IAR Embedded Workbench, with its optimizing C
and C++ compiler, provides full support and generates very compact and efficient
code for 32-bit AVR devices of the AP7000 and UC3 families:
http://www.iar.se/website1/1.0.1.0/124/1/
4.4.2 Programming and on-chip debugging tools: debug tools
• AVR JTAGICE mkII: The AVR JTAGICE mkII from Atmel is a powerful
development tool for on-chip debugging of all 8-bit AVR RISC MCUs and 32-bit
AVR DSP/MCUs with IEEE 1149.1 compliant JTAG interface:
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3353
• AVR ONE!: The AVR ONE! is a powerful development tool for on-chip debugging
and programming of all 32-bit AVR and Atmel® AVR® XMEGA® devices:
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4279
• AVR Dragon: The AVR Dragon sets a new standard for low-cost development
tools and supports all programming modes for the AVR device family:
http://www.atmel.com/dyn/Products/tools_card.asp?tool_id=3891
4.5 Support
Atmel has several support channels available:
• Web portal:
• Email:
• Email:
http://support.atmel.no/ All Atmel microcontrollers
avr@atmel.com
All AVR products
avr32@atmel.com
All AVR32 products
Please register on the web portal to gain access to the following services:
•
•
•
•
Access to a rich FAQ database
Easy submission of technical support requests
History of all your past support requests
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