ATXMEGAA1U-XPRO [MICROCHIP]
EVAL KIT FOR XMEGAA1U;
| 型号： | ATXMEGAA1U-XPRO |
| 厂家： | 
MICROCHIP |
| 描述： | EVAL KIT FOR XMEGAA1U |
| 文件： | 总27页 (文件大小：1836K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AVR 8-bit Microcontrollers
XMEGA A1U Xplained Pro
USER GUIDE
Preface
The Atmel® XMEGA® A1U Xplained Pro evaluation kit is a hardware platform
to evaluate the ATxmega128A1U microcontroller.
Supported by the Atmel Studio integrated development platform, the kit
provides easy access to the features of the Atmel ATxmega128A1U and
explains how to integrate the device in a custom design.
The Xplained Pro MCU series evaluation kits include an on-board
Embedded Debugger, and no external tools are necessary to program or
debug the ATxmega128A1U.
The Xplained Pro extension kits offers additional peripherals to extend the
features of the board and ease the development of custom designs.
Atmel-42211B-XMEGA-A1U-Xplained-Pro_User Guide-04/2016
Table of Contents
Preface............................................................................................................................ 1
1. Introduction................................................................................................................3
1.1. Features....................................................................................................................................... 3
1.2. Kit Overview................................................................................................................................. 3
2. Getting Started...........................................................................................................5
2.1. Xplained Pro Quick Start..............................................................................................................5
2.2. Design Documentation and Relevant Links................................................................................. 5
3. Xplained Pro.............................................................................................................. 7
3.1. Embedded Debugger................................................................................................................... 7
3.2. Hardware Identification System....................................................................................................8
3.3. Power Sources.............................................................................................................................8
3.4. Xplained Pro Headers and Connectors........................................................................................9
3.4.1.
3.4.2.
3.4.3.
Xplained Pro Standard Extension Header.....................................................................9
Xplained Pro LCD Extension Connector......................................................................10
Xplained Pro Power Header........................................................................................ 12
4. Hardware Users Guide............................................................................................ 13
4.1. Connectors.................................................................................................................................13
4.1.1.
4.1.2.
4.1.3.
4.1.4.
Xplained Pro Standard Extension Headers................................................................. 13
LCD Extension Connector........................................................................................... 15
Other Headers............................................................................................................. 17
Current Measurement Header.....................................................................................18
4.2. Peripherals................................................................................................................................. 18
4.2.1.
4.2.2.
4.2.3.
4.2.4.
4.2.5.
Crystal..........................................................................................................................18
Mechanical Buttons..................................................................................................... 18
LED..............................................................................................................................18
USB............................................................................................................................. 19
SRAM.......................................................................................................................... 19
4.3. Embedded Debugger Implementation........................................................................................20
4.3.1.
4.3.2.
4.3.3.
Program Debug Interface............................................................................................ 20
Virtual COM Port..........................................................................................................20
Atmel Data Gateway Interface.....................................................................................21
5. Appendix..................................................................................................................22
5.1. Getting Started with IAR.............................................................................................................22
6. Hardware Revision and Known Issues....................................................................24
6.1. Identifying Product ID and Revision........................................................................................... 24
6.2. Revision 2...................................................................................................................................24
7. Document Revision History..................................................................................... 25
8. Evaluation Board/Kit Important Notice.....................................................................26
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1.
Introduction
1.1.
Features
•
Atmel ATxmega128A1U microcontroller
•
Embedded debugger (EDBG)
–
–
–
–
–
USB interface
Programming and debugging on board XMEGA® through PDI
Virtual COM-port interface to target via UART
Atmel Data Gateway Interface (DGI) to target via USART and TWI
Four GPIOs connected to target for code instrumentation
•
•
Digital I/O
–
–
–
–
Two mechanical buttons (user and reset button)
One user LED
Three extension headers
Xplained Pro LCD extension connector
Three possible power sources
–
–
–
External power
Embedded debugger USB
Target USB
•
•
•
32kHz crystal
External 512KB SRAM
USB interface, device mode
1.2.
Kit Overview
The Atmel XMEGA A1U Xplained Pro evaluation kit is a hardware platform to evaluate the Atmel
ATxmega128A1U.
The kit offers a set of features that enables the ATxmega128A1U user to get started using the XMEGA
peripherals right away and to get an understanding of how to integrate the device in their own design.
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Figure 1-1.ꢀXMEGA A1U Xplained Pro Evaluation Kit Overview
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2.
Getting Started
2.1.
Xplained Pro Quick Start
Steps to start exploring the Atmel Xplained Pro platform:
1. Download Atmel Studio.
2. Launch Atmel Studio.
3. Connect a USB cable (Standard-A to Micro-B or Micro-AB) between the PC and the DEBUG USB
port on the kit.
When the Xplained Pro MCU kit is connected to your computer for the first time, the operating system will
perform a driver software installation. The driver file supports both 32- and 64-bit versions of Microsoft®
Windows® XP, Windows Vista®, Windows 7, Windows 8, Windows 10, and Windows Server 2012.
Once the Xplained Pro MCU board is powered the green power LED will be lit and Atmel Studio will auto
detect which Xplained Pro MCU- and extension board(s) are connected. Atmel Studio will present
relevant information like datasheets and kit documentation. The kit landing page in Atmel Studio also has
the option to launch Atmel Software Framework (ASF) example applications for the kit. The XMEGA A1U
device is programmed and debugged by the on-board Embedded Debugger and therefore no external
programmer or debugger tool is needed.
2.2.
Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for the XMEGA A1U
Xplained Pro.
•
Xplained products - Atmel Xplained evaluation kits are a series of easy-to-use evaluation kits for
Atmel microcontrollers and other Atmel products. For low pin-count devices the Xplained Nano
series provides a minimalistic solution with access to all I/O pins of the target microcontroller.
Xplained Mini kits are for medium pin-count devices and adds Arduino Uno compatible header
footprint and a prototyping area. Xplained Pro kits are for medium to high pin-count devices, they
features advanced debugging and standardized extensions for peripheral functions. All these kits
have on board programmers/debuggers which creates a set of low-cost boards for evaluation and
demonstration of features and capabilities of different Atmel products.
•
Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel
microcontrollers.
•
•
Atmel sample store - Atmel sample store where you can order samples of devices.
EDBG User Guide - User guide containing more information about the on-board Embedded
Debugger.
•
•
IAR Embedded Workbench® for Atmel AVR® - This is a commercial C/C++ compiler that is
available for 8-bit AVR. There is a 30 day evaluation version as well as a 4KB code size limited
kick-start version available from their website.
Atmel Data Visualizer - Atmel Data Visualizer is a program used for processing and visualizing
data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data
Gateway Interface found on Xplained Pro boards and COM ports.
•
•
Design Documentation - Package containing CAD source, schematics, BOM, assembly drawings,
3D plots, layer plots etc.
Hardware Users Guide in PDF format - PDF version of this User Guide.
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•
XMEGA A1U Xplained Pro on Atmel web page - Atmel website link.
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3.
Xplained Pro
Xplained Pro is an evaluation platform that provides the full Atmel microcontroller experience. The
platform consists of a series of Microcontroller (MCU) boards and extension boards, which are integrated
with Atmel Studio, have Atmel Software Framework (ASF) drivers and demo code, support data
streaming, and more. Xplained Pro MCU boards support a wide range of Xplained Pro extension boards,
which are connected through a set of standardized headers and connectors. Each extension board has
an identification (ID) chip to uniquely identify which boards are connected to an Xplained Pro MCU board.
This information is used to present relevant user guides, application notes, datasheets, and example
code through Atmel Studio.
3.1.
Embedded Debugger
The XMEGA A1U Xplained Pro contains the Atmel Embedded Debugger (EDBG) for on-board
debugging. The EDBG is a composite USB device of three interfaces; a debugger, Virtual COM Port, and
a Data Gateway Interface (DGI).
Together with Atmel Studio, the EDBG debugger interface can program and debug the ATxmega128A1U.
On XMEGA A1U Xplained Pro, the PDI interface is connected between the EDBG and the
ATxmega128A1U.
The Virtual COM Port is connected to a UART on the ATxmega128A1U and provides an easy way to
communicate with the target application through terminal software. It offers variable baud rate, parity, and
stop bit settings. Note that the settings on the ATxmega128A1U must match the settings given in the
terminal software.
Info:ꢀ The virtual COM port in the EDBG requires the terminal software to set the data terminal
ready (DTR) signal to enable the UART pins connected to the ATxmega128A1U. If the DTR
signal is not enabled the UART pins on the EDBG is kept in high-z (tristate) rendering the COM
port unusable. The DTR signal is set automatically by some terminal software, but it may have
to be manually enabled in your terminal.
The DGI consists of several physical interfaces for communication with the host computer.
Communication over the interfaces is bidirectional. It can be used to send events and values from the
ATxmega128A1U or as a generic printf-style data channel. Traffic over the interfaces can be timestamped
on the EDBG for more accurate tracing of events. Note that timestamping imposes an overhead that
reduces maximal throughput. Atmel Data Visualizer is used to send and receive data through DGI.
The EDBG controls two LEDs on XMEGA A1U Xplained Pro; a power LED and a status LED. The table
below shows how the LEDs are controlled in different operation modes.
Table 3-1.ꢀEDBG LED Control
Operation mode
Power LED
Status LED
Normal operation
Power LED is lit when power is
applied to the board.
Activity indicator, LED flashes
when any communication
happens to the EDBG.
Bootloader mode (idle)
The power LED and the status LED blinks simultaneously.
Bootloader mode (firmware
upgrade)
The power LED and the status LED blinks in an alternating pattern.
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For further documentation on the EDBG, see the EDBG User Guide.
3.2.
Hardware Identification System
All Xplained Pro compatible extension boards have an Atmel ATSHA204 CryptoAuthentication™ chip
mounted. This chip contains information that identifies the extension with its name and some extra data.
When an Xplained Pro extension is connected to an Xplained Pro MCU board the information is read and
sent to Atmel Studio. The Atmel Kits extension, installed with Atmel Studio, will give relevant information,
code examples, and links to relevant documents. The table below shows the data fields stored in the ID
chip with example content.
Table 3-2.ꢀXplained Pro ID Chip Content
Data field
Data type
ASCII string
ASCII string
ASCII string
ASCII string
uint16_t
Example content
Manufacturer
Atmel'\0'
Product Name
Segment LCD1 Xplained Pro'\0'
Product Revision
Product Serial Number
Minimum Voltage [mV]
Maximum Voltage [mV]
Maximum Current [mA]
02'\0'
1774020200000010’\0’
3000
3600
30
uint16_t
uint16_t
3.3.
Power Sources
The XMEGA A1U Xplained Pro kit can be powered by several power sources as listed in the table below.
Table 3-3.ꢀPower Sources for XMEGA A1U Xplained Pro
Power input
Voltage requirements
Current requirements Connector marking
External power
5V ±2% (±100mV) for
USB host operation.
Recommended
minimum is 1A to be
PWR
4.3V to 5.5V if USB host able to provide enough
operation is not
required.
current for connected
USB devices and the
board itself.
Recommended
maximum is 2A due to
the input protection
maximum current
specification.
Embedded debugger
USB
4.4V to 5.25V (according 500mA (according to
to USB spec.) USB spec.)
DEBUG USB
TARGET USB
Target USB
4.4V to 5.25V (according 500mA (according to
to USB spec.) USB spec.)
The kit will automatically detect which power sources are available and choose which one to use
according to the following priority:
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1. External power.
2. Embedded Debugger USB.
3. Target USB.
Info:ꢀ External power is required when 500mA from a USB connector is not enough to power
the board with possible extension boards. A connected USB device in a USB host application
might easily exceed this limit.
3.4.
Xplained Pro Headers and Connectors
3.4.1.
Xplained Pro Standard Extension Header
All Xplained Pro kits have one or more dual row, 20-pin, 100mil extension header. Xplained Pro MCU
boards have male headers, while Xplained Pro extensions have their female counterparts. Note that all
pins are not always connected. All connected pins follow the defined pin-out description in the table
below.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target MCU on Xplained Pro MCU boards directly.
Table 3-4.ꢀXplained Pro Standard Extension Header
Pin number
Name
ID
Description
1
2
3
Communication line to the ID chip on an extension board
Ground
GND
ADC(+)
Analog to digital converter, alternatively positive part of differential
ADC
4
ADC(-)
Analog to digital converter, alternatively negative part of differential
ADC
5
6
7
GPIO1
GPIO2
PWM(+)
General purpose I/O
General purpose I/O
Pulse width modulation, alternatively positive part of differential
PWM
8
PWM(-)
Pulse width modulation, alternatively negative part of differential
PWM
9
IRQ/GPIO
Interrupt request line and/or general purpose I/O
Slave select for SPI and/or general purpose I/O
10
SPI_SS_B/
GPIO
11
12
13
14
I2C_SDA
I2C_SCL
UART_RX
UART_TX
Data line for I2C interface. Always implemented, bus type.
Clock line for I2C interface. Always implemented, bus type.
Receiver line of target device UART
Transmitter line of target device UART
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Pin number
Name
Description
15
16
SPI_SS_A
SPI_MOSI
Slave select for SPI. Should preferably be unique.
Master out slave in line of serial peripheral interface. Always
implemented, bus type.
17
SPI_MISO
Master in slave out line of serial peripheral interface. Always
implemented, bus type.
18
19
20
SPI_SCK
GND
Clock for serial peripheral interface. Always implemented, bus type.
Ground
VCC
Power for extension board
3.4.2.
Xplained Pro LCD Extension Connector
The LCD connector provides the ability to connect to display extensions that have a parallel interface.
The connector implements signals for a MCU parallel bus interface and a LCD controller interface as well
as signals for a touch controller. The connector pin-out definition is shown in Table 3-5ꢀXplained Pro LCD
Connector. Note that usually only one display interface is implemented, either the LCD controller or the
MCU bus interface.
A FPC/FFC connector with 50 pins and 0.5mm pitch is used for the LCD connector. The connector
XF2M-5015-1A from Omron is used on several Xplained Pro designs and can be used as a reference.
Table 3-5.ꢀXplained Pro LCD Connector
Pin number Name
RGB interface description
MCU interface description
1
ID
Communication line to the ID chip on an extension board
2
GND
D0
Ground
3
Data line
Data line
Data line
Data line
Ground
4
D1
5
D2
6
D3
7
GND
D4
8
Data line
Data line
Data line
Data line
Ground
9
D5
10
11
12
13
14
15
16
17
D6
D7
GND
D8
Data line
Data line
Data line
Data line
Ground
D9
D10
D11
GND
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Pin number Name
RGB interface description
Data line
MCU interface description
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
D12
D13
D14
D15
GND
D16
D17
D18
D19
GND
D20
D21
D22
D23
GND
Data line
Data line
Data line
Ground
Data line
Data line
Data line
Data line
Ground
Data line
Data line
Data line
Data line
Ground
PCLK / CMD DATA Pixel clock
SEL
Display RAM select. One
address line of the MCU for
displays where it is possible to
select either register or data
interface.
34
35
36
VSYNC / CS
HSYNC / WE
Vertical Synchronization
Chip select
Horizontal Synchronization
Data enable signal
Write enable signal
Read enable signal
DATA ENABLE /
RE
37
38
39
40
SPI SCK
SPI MOSI
SPI MISO
SPI SS
Clock for serial peripheral interface
Master out slave in of serial peripheral interface
Master in slave out of serial peripheral interface
Slave select for serial peripheral interface. Preferably a dedicated
pin.
41
42
43
44
45
46
ENABLE
I2C SDA
I2C SCL
IRQ1
Display enable
I2C data
I2C clock
Interrupt 1
IRQ2
Interrupt 2
PWM
Backlight control
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Pin number Name
RGB interface description
MCU interface description
47
48
49
50
RESET
VCC
Extension reset
3.3V power supply for extension board
3.3V power supply for extension board
Ground
VCC
GND
3.4.3.
Xplained Pro Power Header
The power header can be used to connect external power to the XMEGA A1U Xplained Pro kit. The kit
will automatically detect and switch to any external power if supplied. The power header can also be used
as supply for external peripherals or extension boards. Care must be taken not to exceed the total current
limitation of the on-board regulator when using the 3.3V pin.
Table 3-6.ꢀXplained Pro Power Header
Pin number
Pin name
VEXT_P5V0
GND
Description
1
2
3
4
External 5V input
Ground
VCC_P5V0
VCC_P3V3
Unregulated 5V (output, derived from one of the input sources)
Regulated 3.3V (output, used as main power supply for the kit)
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4.
Hardware Users Guide
4.1.
Connectors
This chapter describes the implementation of the relevant connectors and headers on XMEGA A1U
Xplained Pro and their connection to the ATxmega128A1U. The tables of connections in this chapter also
describes which signals are shared between the headers and on-board functionality.
4.1.1.
Xplained Pro Standard Extension Headers
The XMEGA A1U Xplained Pro headers EXT1, EXT2, and EXT3 offer access to the I/O of the
microcontroller in order to expand the board e.g. by connecting extensions to the board. These headers
all comply with the standard extension header specified in Xplained Pro Standard Extension Header. All
headers have a pitch of 2.54mm.
Table 4-1.ꢀExtension Header EXT1
Pin on EXT1
XMEGA pin
Function
Shared functionality
1 [ID]
-
-
Communication line to ID chip on
extension board
2 [GND]
-
-
GND
3 [ADC(+)]
PA0
PA4
PE6
PE7
PE1
PE0
PR0
PR1
PC0
PC1
PC2
PC3
PC4
PC5
ADCA0 (GAINPOS)
ADCA4 (GAINNEG)
GPIO
Alternate signal header
4 [ADC(-)]
5 [GPIO1]
6 [GPIO2]
GPIO
Alternate signal header
7 [PWM(+)]
TCC0 OC0B
TCC0 OC0A
GPIO
8 [PWM(-)]
9 [IRQ/GPIO]
10 [SPI_SS_B/GPIO]
11 [TWI_SDA]
12 [TWI_SCL]
13 [USART_RX]
14 [USART_TX]
15 [SPI_SS_A]
16 [SPI_MOSI]
GPIO
TWIC SDA
TWIC SCL
USARTC0 RXD0
USARTC0 TXD0
SPIC SS
EDBG and LCD Connector
EDBG and LCD Connector
SPIC MOSI
EXT2, EXT3, and LCD
Connector
17 [SPI_MISO]
18 [SPI_SCK]
PC6
PC7
SPIC MISO
SPIC SCK
EXT2, EXT3, LCD Connector,
and Alternate signal header
EXT2, EXT3, LCD Connector,
and Alternate signal header
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Pin on EXT1
19 [GND]
XMEGA pin
Function
Shared functionality
-
-
-
-
GND
VCC
20 [VCC]
Table 4-2.ꢀExtension Header EXT2
Pin on EXT2
XMEGA pin
Function
Shared functionality
1 [ID]
-
-
Communication line to ID chip on
extension board
2 [GND]
-
-
GND
3 [ADC(+)]
PA1
PA6
PB4
PB5
PE5
PE4
PB6
PB7
PF0
PF1
PF2
PF3
PF4
PC5
ADCA1 (GAINPOS)
ADCA6 (GAINNEG)
GPIO
4 [ADC(-)]
Alternate signal header
5 [GPIO1]
6 [GPIO2]
GPIO
7 [PWM(+)]
TCE1 OC1B
TCE1 OC1A
GPIO
8 [PWM(-)]
9 [IRQ/GPIO]
10 [SPI_SS_B/GPIO]
11 [TWI_SDA]
12 [TWI_SCL]
13 [USART_RX]
14 [USART_TX]
15 [SPI_SS_A]
16 [SPI_MOSI]
Alternate signal header
Alternate signal header
EXT3
GPIO
TWIF SDA
TWIF SCL
USARTF0 RXD0
USARTF0 TXD0
GPIO
EXT3
SPIC MOSI
EXT1, EXT3, and LCD
Connector
17 [SPI_MISO]
18 [SPI_SCK]
PC6
PC7
SPIC MISO
SPIC SCK
EXT1, EXT3, LCD Connector,
and Alternate signal header
EXT1, EXT3, LCD Connector,
and Alternate signal header
19 [GND]
20 [VCC]
-
-
-
-
GND
VCC
Table 4-3.ꢀExtension Header EXT3
Pin on EXT3
XMEGA pin
Function
Shared functionality
1 [ID]
-
-
Communication line to ID chip on
extension board
2 [GND]
-
-
GND
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Pin on EXT3
3 [ADC(+)]
XMEGA pin
PA3
Function
Shared functionality
ADCA3 (GAINPOS)
ADCA7 (GAINNEG)
GPIO
4 [ADC(-)]
PA7
Alternate signal header
5 [GPIO1]
PK0
6 [GPIO2]
PK1
GPIO
7 [PWM(+)]
PD5
PD4
PK2
TCD1 OC1B
TCD1 OC1A
GPIO
8 [PWM(-)]
9 [IRQ/GPIO]
10 [SPI_SS_B/GPIO]
11 [TWI_SDA]
12 [TWI_SCL]
13 [USART_RX]
14 [USART_TX]
15 [SPI_SS_A]
16 [SPI_MOSI]
PK3
GPIO
PF0
TWIF SDA
TWIF SCL
USARTF1 RXD1
USARTF1 TXD1
GPIO
EXT2
EXT2
PF1
PF6
PF7
PD0
PC5
SPIC MOSI
EXT1, EXT2, and LCD
Connector
17 [SPI_MISO]
18 [SPI_SCK]
PC6
PC7
SPIC MISO
SPIC SCK
EXT1, EXT2, LCD Connector,
and Alternate signal header
EXT1, EXT2, LCD Connector,
and Alternate signal header
19 [GND]
20 [VCC]
-
-
-
-
GND
VCC
4.1.2.
LCD Extension Connector
Extension connector EXT4 is a special connector for LCD displays. The physical connector is a TE
Connectivity 5-1734839-0 FPC connector.
Table 4-4.ꢀLCD Display Connector EXT4
Pin on EXT4
XMEGA pin
Function
Shared functionality
1 [ID]
-
-
Communication line to ID chip on
extension board
2 [GND]
3 [D0]
-
-
GND
PJ0
PJ1
PJ2
PJ3
-
D0
D1
D2
D3
-
SRAM
SRAM
SRAM
SRAM
GND
4 [D1]
5 [D2]
6 [D3]
7 [GND]
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Pin on EXT4
8 [D4]
XMEGA pin
Function
Shared functionality
PJ4
D4
SRAM
SRAM
SRAM
SRAM
GND
9 [D5]
PJ5
D5
10 [D6]
PJ6
D6
11 [D7]
PJ7
D7
12 [GND]
-
-
13 [D8]
-
-
14 [D9]
-
-
15 [D10]
-
-
16 [D11]
-
-
17 [GND]
-
-
GND
GND
GND
18 [D12]
-
-
19 [D13]
-
-
20 [D14]
-
-
21 [D15]
-
-
22 [GND]
-
-
23 [D16]
-
-
24 [D17]
-
-
25 [D18]
-
-
26 [D19]
-
-
27 [GND]
-
-
28 [D20]
-
-
29 [D21]
-
-
30 [D22]
-
-
31 [D23]
-
-
32 [GND]
-
-
GND
33 [PCLK / CMD_DATA_SEL]
34 [VSYNC / CS]
35 [HSYNC / WE]
36 [DATA ENABLE / RE]
37 [SPI SCK]
PJ0 ALE1(1)
PH7
A0
SRAM
EBI CS3
EBI NWE
EBI NRD
SPIC SCK
PH0
SRAM
SRAM
PH1
PC7
EXT1, EXT2, EXT3, and
Alternate signal header
38 [SPI MOSI]
PC5
SPIC MOSI
EXT1, EXT2, and EXT3
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Pin on EXT4
XMEGA pin
Function
Shared functionality
39 [SPI MISO]
PC6
SPIC MISO
EXT1, EXT2, EXT3, and
Alternate signal header
40 [SPI SS]
41 [DISP ENABLE]
42 [TWI SDA]
43 [TWI SCL]
44 [IRQ1]
PB1
PK5
PC0
PC1
PK4
PK6
PF5
PA5
-
GPIO
GPIO
EDBG DGI
TWIC SDA
TWIC SCL
GPIO
EXT1 and EDBG
EXT1 and EDBG
EDBG DGI
45 [IRQ2]
GPIO
EDBG DGI
46 [PWM]
TCF1 OC1B
GPIO
47 [RESET]
48 [VCC]
VCC_P3V3
VCC_P3V3
GND
49 [VCC]
-
50 [GND]
-
Note:ꢀ
1. Connected through ALE1 latch.
4.1.3.
Other Headers
In addition to the Xplained Pro Standard Extension Header, XMEGA A1U Xplained Pro has one additional
header with spare signals that offers access to the I/O of the microcontroller which are otherwise not
easily available elsewhere or might be favorable to have collected together. The header has a pitch of
2.54mm.
Table 4-5.ꢀAlternate Signals Header
Pin on header XMEGA pin
Function
AREFA
Shared functionality
1
2
3
4
5
6
7
8
9
PA0
PB0
PB2
PB3
PA7
PA6
PB7
PB6
PC6
EXT1
AREFB
DACB0
DACB1
ACA0OUT
ACA1OUT
ACB0OUT
ACB1OUT
CLOCKOUT (src)
EXT3
EXT2
EXT2
EXT2
EXT1, EXT2, EXT3, and LCD
Connector
10
PC7
CLOCKOUT (per)
EXT1, EXT2, EXT3, and LCD
Connector
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Pin on header XMEGA pin
Function
EVOUT
-
Shared functionality
11
12
PE7
-
EXT1
GND
4.1.4.
Current Measurement Header
An angled 1x2, 100mil pin-header marked with MCU current measurement is located at the upper edge of
the XMEGA A1U Xplained Pro. All power to the ATxmega128A1U is routed through this header. To
measure the power consumption of the device remove the jumper and replace it with an ammeter.
Caution:ꢀ Removing the jumper from the pin-header while the kit is powered may cause the
ATxmega128A1U to be powered through its I/O pins. This may cause permanent damage to the
device.
4.2.
Peripherals
4.2.1.
Crystal
The XMEGA A1U Xplained Pro kit contains one crystal that can be used as clock source for the XMEGA
device. The crystal has a cut-strap next to it that can be used to measure the oscillator safety factor. This
is done by cutting the strap and adding a resistor across the strap. More information about oscillator
allowance and safety factor can be found in appnote AVR4100.
Table 4-6.ꢀExternal 32.768kHz Crystals
Pin on XMEGA
PQ0
Function
XIN32 (TOSC1)
XOUT32 (TOSC2)
PQ1
4.2.2.
Mechanical Buttons
XMEGA A1U Xplained Pro contains two mechanical buttons. One button is the RESET button connected
to the XMEGA reset line and the other is a generic user configurable button. When a button is pressed it
will drive the I/O line to GND.
Table 4-7.ꢀMechanical Buttons
Pin on XMEGA
RESET/PDI_CLK
PQ2
Silkscreen text
RESET
SW0
4.2.3.
LED
There is one yellow LED available on the XMEGA A1U Xplained Pro board that can be turned on and off.
The LED can be activated by driving the connected I/O line to GND.
Table 4-8.ꢀLED Connections
Pin on XMEGA
LED
PQ3
Yellow LED0
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4.2.4.
USB
The XMEGA A1U Xplained Pro has a micro USB receptacle for use with the XMEGA A1U USB device
module. To be able to detect when a USB cable is connected, a GPIO is used to detect the VBUS voltage
on the connector.
Table 4-9.ꢀUSB Connections
Pin on XMEGA
USB
PA2
PD6
PD7
VBUS Detection
USB D-
USB D+
4.2.5.
SRAM
The XMEGA A1U Xplained Pro features a SRAM with latches for configuring the XMEGA in 2-PORT EBI
mode. In this mode the address byte 0 and 1 is shared with data byte 0.
Table 4-10.ꢀSRAM Connections
Pin on XMEGA
PJ0
SRAM
D0 (data)
PJ1
D1 (data)
PJ2
D2 (data)
PJ3
D3 (data)
PJ4
D4 (data)
PJ5
D5 (data)
PJ6
D6 (data)
PJ7
D7 (data)
PJ0 through ALE1 latch
PJ1 through ALE1 latch
PJ2 through ALE1 latch
PJ3 through ALE1 latch
PJ4 through ALE1 latch
PJ5 through ALE1 latch
PJ6 through ALE1 latch
PJ7 through ALE1 latch
PJ0 through ALE2 latch
PJ1 through ALE2 latch
PJ2 through ALE2 latch
PJ3 through ALE2 latch
PJ4 through ALE2 latch
A0 (address)
A1 (address)
A2 (address)
A3 (address)
A4 (address)
A5 (address)
A6 (address)
A7 (address)
A8 (address)
A9 (address)
A10 (address)
A11 (address)
A12 (address)
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Pin on XMEGA
SRAM
PJ5 through ALE2 latch
A13 (address)
PJ6 through ALE2 latch
A14 (address)
PJ7 through ALE2 latch
A15 (address)
PH4
PH5
PK7
PH2
PH3
PH6
PH0
PH1
A16 (address)
A17 (address)
A18 (address)
ALE1 (Address Latch Enable 1)
ALE2 (Address Latch Enable 2)
CS
WE
RE
4.3.
Embedded Debugger Implementation
XMEGA A1U Xplained Pro contains an Embedded Debugger (EDBG) that can be used to program and
debug the ATxmega128A1U using the Program Debug Interface (PDI). The Embedded Debugger also
include a Virtual Com port interface over UART, an Atmel Data Gateway Interface over SPI and TWI and
it monitors four of the XMEGA GPIOs. Atmel Studio can be used as a front end for the Embedded
Debugger.
4.3.1.
Program Debug Interface
The Program Debug Interface (PDI) use two pins to communicate with the target. For further information
on how to use the programming and debugging capabilities of the EDBG, see Embedded Debugger.
Table 4-11.ꢀPDI Connections
Pin on XMEGA
RESET/PDI_CLK
PDI_DATA
Function
PDI clock
PDI data
4.3.2.
Virtual COM Port
The Embedded Debugger acts as a Virtual Com Port gateway by using one of the ATxmega128A1U
UARTs. For further information on how to use the Virtual COM port see Embedded Debugger.
Table 4-12.ꢀVirtual COM Port Connections
Pin on XMEGA
Function
PE2
PE3
USARTE0 RXD0 (XMEGA RX line)
USARTE0 TXD0 (XMEGA TX line)
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4.3.3.
Atmel Data Gateway Interface
The Embedded Debugger features an Atmel Data Gateway Interface (DGI) by using either a SPI or I2C
port. The DGI can be used to send a variety of data from the XMEGA to the host PC. For further
information on how to use the DGI interface see Embedded Debugger.
Table 4-13.ꢀDGI Interface Connections when using USART
Pin on XMEGA
Function
PD1
PD2
PD3
USARTD0 XCK0
USARTD0 RXD0
USARTD0 TXD0
Table 4-14.ꢀDGI Interface Connections when using I2C
Pin on XMEGA
Function
PC0
PC1
TWIC SDA (Data line)
TWIC SCL (Clock line)
Four GPIO lines are connected to the Embedded Debugger. The EDBG can monitor these lines and time
stamp pin value changes. This makes it possible to accurately time stamp events in the XMEGA
application code. For further information on how to configure and use the GPIO monitoring features see
Embedded Debugger.
Table 4-15.ꢀGPIO Lines Connected to the EDBG
Pin on XMEGA
Function
GPIO0
GPIO1
GPIO2
GPIO3
PK4
PK5
PK6
PK7
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5.
Appendix
5.1.
Getting Started with IAR
IAR Embedded Workbench® for AVR® is a proprietary high efficiency compiler not based on GCC.
Programming and debugging of Xplained Pro kits are supported in IAR™ Embedded Workbench for AVR
using the Atmel-ICE interface. Some initial settings have to be set up in the project to get the
programming and debugging to work.
The following steps will explain how to get your project ready for programming and debugging:
1. Make sure you have opened the project you want to configure. Open the OPTIONS dialog for the
project.
2. In the category General Options, select the Target tab. Select the device for the project or, if not
listed, the core of the device.
3. In the category Debugger, select the Setup tab. Select Atmel-ICE as the driver.
4. In the category Debugger > Atmel-ICE, select the Atmel-ICE 1 tab. Select PDI as the interface
and optionally select the PDI frequency.
Figure 5-1.ꢀSelect Target Device
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Figure 5-2.ꢀSelect Debugger
Figure 5-3.ꢀConfigure Interface
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6.
Hardware Revision and Known Issues
6.1.
Identifying Product ID and Revision
The revision and product identifier of Xplained Pro boards can be found in two ways; either through Atmel
Studio or by looking at the sticker on the bottom side of the PCB.
By connecting an Xplained Pro MCU board to a computer with Atmel Studio running, an information
window will pop up. The first six digits of the serial number, which is listed under kit details, contain the
product identifier and revision. Information about connected Xplained Pro extension boards will also
appear in the Atmel Kit's window.
The same information can be found on the sticker on the bottom side of the PCB. Most kits will print the
identifier and revision in plain text as A09-nnnn\rr, where nnnn is the identifier and rr is the revision.
Boards with limited space have a sticker with only a QR-code, which contains a serial number string.
The serial number string has the following format:
"nnnnrrssssssssss"
n = product identifier
r = revision
s = serial number
The product identifier for XMEGA A1U Xplained Pro is A09-1802.
6.2.
Revision 2
Revision 2 of XMEGA A1U Xplained Pro is the initial released version, there are no known issues.
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7.
Document Revision History
Doc. rev.
42211B
42211A
Date
Comment
04/2016
01/2014
Added Getting Started with IAR.
Initial document release.
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8.
Evaluation Board/Kit Important Notice
This evaluation board/kit is intended for use for FURTHER ENGINEERING, DEVELOPMENT,
DEMONSTRATION, OR EVALUATION PURPOSES ONLY. It is not a finished product and may not
(yet) comply with some or any technical or legal requirements that are applicable to finished products,
including, without limitation, directives regarding electromagnetic compatibility, recycling (WEEE), FCC,
CE or UL (except as may be otherwise noted on the board/kit). Atmel supplied this board/kit "AS IS",
without any warranties, with all faults, at the buyer's and further users' sole risk. The user assumes all
responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies Atmel
from all claims arising from the handling or use of the goods. Due to the open construction of the
product, it is the user's responsibility to take any and all appropriate precautions with regard to
electrostatic discharge and any other technical or legal concerns.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER USER NOR ATMEL
SHALL BE LIABLE TO EACH OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES.
No license is granted under any patent right or other intellectual property right of Atmel covering or
relating to any machine, process, or combination in which such Atmel products or services might be or
are used.
Atmel Corporation
1600 Technology Drive
San Jose, CA 95110
USA
Mailing Address:
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Atmel Corporation
1600 Technology Drive, San Jose, CA 95110 USA
T: (+1)(408) 441.0311
F: (+1)(408) 436.4200
|
www.atmel.com
©
2016 Atmel Corporation. / Rev.: Atmel-42211B-XMEGA-A1U-Xplained-Pro_User Guide-04/2016
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