Atmel SAMDA1 Xplained Pro SAMDA1J16A Evaluation Kit User Guide
Below you will find brief information for Evaluation Kit SAMDA1 Xplained Pro SAMDA1J16A. The SAMDA1 Xplained Pro evaluation kit is a hardware platform to evaluate the SAMDA1J16A microcontroller, supported by Atmel Studio integrated development platform. It provides easy access to the features of the SAMDA1J16A and explains how to integrate the device in a custom design.
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Preface
SAMDA1 Xplained Pro
SAMDA1 Xplained Pro
USER GUIDE
The Atmel
®
SAMDA1 Xplained Pro evaluation kit is a hardware platform to evaluate the SAMDA1J16A microcontroller.
Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the Atmel SAMDA1J16A and explains how to integrate the device in a custom design.
The Xplained Pro MCU series evaluation kits include an on-board
EmbeddedDebugger, and no external tools are necessary to program or debug the SAMDA1J16A.
The Xplained Pro extension kits offer additional peripherals to extend the features of the board and ease the development of custom designs.
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Table of Contents
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1. Introduction
1.1. Features
• Atmel SAMDA1J16A microcontroller
• Embedded debugger (EDBG)
– USB interface
– Programming and debugging on board SAMDA1J16A through Serial Wire Debug (SWD)
– Virtual COM-port interface to target via UART
– Atmel Data Gateway Interface (DGI) to target via SPI 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
• Four possible power sources
– External power (3.3/5V)
– External power (12V)
– Embedded debugger USB (5V)
– Target USB (5V)
• 32kHz crystal
• USB interface, device and reduced host mode
• On-board LIN Transceiver as System-Base Chip (SBC)
– LIN Slave/Master configurable
– Intregrated VREG regulates external VS_LIN (12V) to 3.3V
1.2. Kit Overview
The SAMDA1 Xplained Pro evaluation kit is a hardware platform to evaluate the Atmel SAMDA1J16A.
The kit offers a set of features that enables the user to get started using SAMDA1J16A 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 Xplained Pro Evaluation Kit Overview
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2. Getting Started
2.1. Quick-start
There are three steps to start exploring the Atmel Xplained Pro Platform:
• Download and install Atmel Studio
• Launch Atmel Studio
• Connect a Micro-B cable to the DEBUG USB port
2.2. Connecting the Kit
When connecting Atmel SAMDA1 Xplained Pro to your computer for the first time, the operating system will do a driver software installation. The driver file supports both 32-bit and 64-bit versions of Microsoft
®
Windows
®
XP and Windows 7.
Once connected the green power LED will be lit and Atmel Studio will autodetect which Xplained Pro evaluation- and extension kit(s) that's connected. You'll be presented with relevant information like datasheets and kit documentation. You also have the option to launch Atmel Software Framework (ASF) example applications. The target device is programmed and debugged by the on-board Embedded
Debugger and no external programmer or debugger tool is needed. Refer to the Atmel Studio user guide for information regarding how to compile and program the kit.
2.3. Design Documentation and Related Links
The following list contains links to the most relevant documents and software for SAMDA1 Xplained Pro:
1.
Xplained Pro products - Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation kits for 8- and 32-bit Atmel microcontrollers. It consists of a series of low cost MCU boards for evaluation and demonstration of features and capabilities of different MCU families.
2.
SAMDA1 Xplained Pro User Guide - PDF version of this User Guide.
3.
SAMDA1 Xplained Pro Design Documentation - Package containing schematics, BOM, assembly drawings, 3D plots, layer plots etc.
4.
EDBG User Guide - User guide containing more information about the onboard Embedded
Debugger.
5.
Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel microcontrollers.
6.
IAR Embedded Workbench
®
for ARM
®
. This is a commercial C/C++ compiler that is available for
ARM. There is a 30 day evaluation version as well as a code size limited kick-start version available from their website. The code size limit is 16KB for devices with M0, M0+ and M1 cores and 32KB for devices with other cores
7.
Atmel sample store - Atmel sample store where you can order samples.
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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 that 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 that are connected through a set of standardized headers and connectors. Each extension board has an identification (ID) chip to uniquely identify which boards are mounted on a Xplained Pro MCU board. This information is used to present relevant user guides, application notes, datasheets and example code through Atmel Studio. Available Xplained Pro MCU and extension boards can be purchased in the Atmel
Web Store .
3.1. Embedded Debugger
The SAMDA1 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 Data
Gateway Interface (DGI).
In conjunction with Atmel Studio, the EDBG debugger interface can program and debug the
SAMDA1J16A. On the SAMDA1 Xplained Pro, the SWD interface is connected between the EDBG and the SAMDA1J16A. The Virtual COM Port is connected to a UART port on the SAMDA1J16A (see section
Embedded Debugger Implementation on page 17 for pinout), and provides an easy way to
communicate with the target application through simple terminal software. It offers variable baud rate, parity and stop bit settings. Note that the settings on the target device UART must match the settings given in the terminal software.
The DGI consists of several physical data interfaces for communication with the host computer. See
section Embedded Debugger Implementation on page 17 for available interfaces and pinout.
Communication over the interfaces is bidirectional. It can be used to send events and values from the
SAMDA1J16A 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. The DGI uses a proprietary protocol, and is thus only compatible with Atmel Studio.
The EDBG controls two LEDs on SAMDA1 Xplained Pro, a power LED and a status LED.
shows how the LEDs are controlled in different operation modes.
Table 3-1 EDBG LED Control
Operation mode
Normal operation
Power LED
Power LED is lit when power is applied to the board
Status LED
Activity indicator, LED flashed every time something happens on the
EDBG
The power LED and the status LED blink simultaneously Bootloader mode (idle)
Bootloader mode (firmware upgrade)
The power LED and the status LED blink in an alternating pattern
For further documentation on the EDBG, see the EDBG User Guide .
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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 board 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 the relevant documents. Table 3-2
shows the data fields stored in the ID chip with example content.
Table 3-2 Xplained Pro ID Chip Content
Data Field
Manufacturer
Product Name
Product Revision
Product Serial Number
Min. Voltage [mV]
Max. Voltage [mV]
Max. Current [mA]
Data Type
ASCII string
ASCII string
ASCII string
ASCII string uint16_t uint16_t uint16_t
Example Content
Atmel’\0’
Segment LCD1 Xplained Pro’\0’
02’\0’
1774020200000010’\0’
3000
3600
30
3.3. Power Supply
3.3.1. Power Source Selection
The SAMDA1 Xplained Pro kit can be powered by: (1) USB, (2) an external power 5V or 3.3 VCC source through the 4-pin power header, marked PWR or by (3) a LIN 12VDC input connected to HV header
VS_LIN pin. The 4-pin connector is described in section Xplained Pro Power Header
on page 10.
The available power sources and specifications are listed in
Table 3-3 Power Sources for SAMDA1 Xplained Pro
Option
Option1
Power input Voltage Req.
Current Req.
Connector
Marking
PWR
Option 2A
External Power 1
(PWR 4-pin connector)
5V ±2 %
(±100mV) for
USB host operation.
4.3V to 5.5V if
USB host operation is not required
Embedded debugger USB
4.4V to 5.25V
(according to
USB spec)
Recommended minimum is 1A to be able to provide enough current for connected USB devices and the board itself.
Recommended maximum is 2A due to the input protection maximum current specification.
500mA (according to USB spec)
DEBUG USB
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Option
Option 2B
Option 3
Power input
Target USB
External Power 2
(HV 20-pin connector)
Voltage Req.
Current Req.
Connector
Marking
TARGET USB 4.4V to 5.25V
(according to
USB spec)
8-16VDC VREG
(HV) regulator drops it to 5VDC and then VREG
(5V) drops it to
3.3VDC to power
EDBG and
SAMDA1A device.
500mA (according to USB spec)
800mA max 12VDC power source
HV
The kit will automatically detect which power sources are available and make a selection automatically based on the following criteria:
1.
Option1: External power 5V is connected and detected. On board descrete high current output
VREG is used to regulate Vsupply from 5V to 3.3V and distribute it on the PCB and to the extension modules/PCBs. It overrides USB power source.
2.
USB power:
– Option 2A: Embedded debugger USB plug is connected or/and
– Option 2B: Target USB plug is connected
3.
Option3: External 12VDC is connected to VS_LIN pin on HV header. It can override any other source of power supplied (5V or 3V provided on PWR 4-pin header or any USB connector). Use header MCU_VCC_SEL and EXT_VCC_SEL to select source of VCC from either (1) VS_LIN or (2)
USB/PWR 4-pin header.
Note: External power is required when the 500mA through the USB connector is not enough to power a connected USB device in a USB host application.
shows how MCU_VCC_SEL (MCU VCC Selection) and EXT_VCC_SEL (Extension VCC
Selection) power headers can be used to select VCC source for SAMDA1J16A and EDBG MCUs.
To select VS_LIN (12VDC) as the source of power for SAMDA1 Xplained Pro PCB connect pin1-2 on
MCU_VCC_SEL header using a jumper.
To select 5V from either of the USB connectors or select VCC_P5V or VCC_P3V3 from the 4-pin power header as the source of power for SAMDA1 Xplained Pro PCB connect pin 2-3 on EXT_VCC_SEL header using a jumper.
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Table 3-4 Selecting VCC source (VS_LIN versus USB/EXT5V/EXT3.3V)
Power Header Jumper Placement
MCU_VCC_SEL Pin 1-2
(VCC_LINTRX_P3V3 – to
- VCC)
Configuration
VCC(SAMDA1J16A)=
VCC_LINTRX_P3V3
VCC(EDBG)=
VCC_LINTRX_P3V3
Pin 2-3
(VCC_P3V3 – to - VCC)
VCC(SAMDA1J16A)=
VCC_P3V3
VCC(EDBG)= VCC_P3V3
EXT_VCC_SEL Pin 1-2
(VCC_LINTRX_P3V3 – to
- VCC)
Pin 2-3
(VCC_P3V3 – to - VCC)
VCC(EXT1/EXT2/EXT3)=
VCC_LINTRX_P3V3
VCC(EXT1/EXT2/EXT3)=
VCC_P3V3
VCC Source
VS_LIN
USB/ VCC_P5/
VCC_P3V3
VS_LIN
USB/ VCC_P5/
VCC_P3V3
3.3.2. Measuring SAM DA1 Power Consumption
As part of an evaluation of the SAMDA1 it can be of interest to measure its power consumption. Because the PCB has a separate power plane (VCC_MCU_P3V3) it is possible to measure the current consumption by measuring the current that is flowing into this plane. The VCC_MCU_P3V3 plane is connected via a jumper to the main power plane (VCC_TARGET_P3V3) and by replacing the jumper with an ammeter it is possible to determine the current consumption. To locate the current measurement
Warning: Do not power the board without having the jumper or an ammeter mounted since this can cause SAMDA1 to be powered through its I/O pins and cause undefined operation of the device.
3.4. Standard 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 headers. Xplained Pro MCU boards have male headers while Xplained Pro extensions have their female counterparts. Note that all pins are not always connected. However, all the connected pins follow the defined pin-out described in
. The extension headers can be used to connect a wide variety of Xplained Pro extensions to
Xplained Pro MCU boards and to access the pins of the target MCU on Xplained Pro MCU board directly.
Table 3-5 Xplained Pro Extension Header
Pin Number
1
2
3
Name
ID
GND
ADC(+)
Description
Communication line to the ID chip on extension board
Analog to digital converter , alternatively positive part of differential ADC
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Pin Number
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Name
ADC(-)
GPIO1
GPIO2
PWM(+)
PWM(-)
IRQ/GPIO
SPI_SS_B/GPIO
TWI_SDA
TWI_SCL
USART_RX
USART_TX
SPI_SS_A
SPI_MOSI
SPI_MISO
SPI_SCK
Description
Analog to digital converter , alternatively neg. part of differential ADC
GPIO
GPIO
Pulse width modulation , alternatively positive part of differential PWM
Pulse width modulation , alternatively negative part of differential PWM
Interrupt request line and/or general purpose I/O.
Slave select for SPI and/or general purpose I/O
Data line for two-wire interface. Always implemented, bus type.
Clock line for two-wire interface. Always implemented, bus type.
Receiver line of Universal Synchronous and
Asynchronous serial Receiver and Transmitter.
Transmitter line of Universal Synchronous and
Asynchronous serial Receiver and Transmitter.
Slave select for SPI. Should be unique if possible.
Master out slave in line of Serial peripheral interface.
Always implemented, bus type.
Master in slave out line of Serial peripheral interface.
Always implemented, bus type.
Clock for Serial peripheral interface. Always implemented, bus type.
Ground.
Power for extension board.
19
20
GND
VCC
3.4.2. Xplained Pro Power Header
The power header can be used to connect external power to the SAMDA1 Xplained Pro kit. The kit will automatically detect and switch to the external power if supplied. The power header can also be used as a power supply for external peripherals or extension boards. Care must be taken not to exceed the total current limitation if the on-board regulator for the 3.3V regulated output (85mA). To locate the current
measurement header, refer to Figure 1-1 .
Table 3-6 Power Header PWR
Pin number Name
1 VEXT_P5V0
2 GND
Description
External 5V input
Ground
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Pin number
3
4
Name
VCC_P5V0
VCC_P3V3_CON
Description
Unregulated 5V (output derived from one of the input sources: (1) Ext. 5V input, (2) USB Target, (3) USB
EDBG
Regulated 3.3V (output – used as main power for the kit)
Warning: If the board is powered from a battery source it is recommended to use the PWR header. If there is a power source connected to EDBG USB, the EDBG is activated and it will consume more power.
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4. Hardware User Guide
4.1. Connectors
This chapter describes the implementation of the relevant connectors and headers on SAMDA1 Xplained
Pro and their connection to the SAMDA1J16A. The tables of connections in this chapter also describes which signals are shared between the headers and on-board functionality.
4.1.1. I/O Extension Headers
The SAMDA1 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
All headers have a pitch of 2.54 mm.
Table 4-1 Extension Header EXT1
Pin on EXT1
1. [ID]
2. [GND]
3. [ADC(+)]
4. [ADC(-)]
5. [GPIO1]
6. [GPIO2]
7. [PWM(+)]
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]
-
PB00
PB01
PB06
PB07
PB02
PB03
PB04
PB05
PA08
SAMDA1 Pin
-
PA09
PB09
PB08
PA05
Function Shared Functionality
ID signal from extension board
GND
AIN[8]
AIN[9]
GPIO
GPIO
TC6/WO[0]
TC5/WO[1]
EXTINT[4]
GPIO
SERCOM2 PAD[0] I²C
SDA
SERCOM2 PAD[1] I²C
SCL
SERCOM4 PAD[1] UART
RX
1
SERCOM4 PAD[0] UART
TX
2
SERCOM0 PAD[1] SPI SS
EXT2, EXT3 and EDBG
EXT2, EXT3 and EDBG
1
2
The SERCOM4 module is shared between EXT1, 2 and 3 UART's, but uses different pins on EXT1 and EXT2/3.
The SERCOM4 module is shared between EXT1, 2 and 3 UART's, but uses different pins on EXT1 and EXT2/3.
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Pin on EXT1
16. [SPI_MOSI]
17. [SPI_MISO]
18. [SPI_SCK]
19. [GND]
20. [VCC]
SAMDA1 Pin Function
PA06
PA04
PA07
-
-
SERCOM0 PAD[2] SPI
MOSI
SERCOM0 PAD[0] SPI
MISO
-
-
SERCOM0 PAD[3] SPI
SCK
Table 4-2 Extension Header EXT2
Pin on EXT1
1. [ID] -
Device pin
2. [GND]
3. [ADC(+)]
4. [ADC(-)]
5. [GPIO1]
6. [GPIO2]
7. [PWM(+)]
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]
17. [SPI_MOSI]
-
PA10
PA11
PA20
PA21
PB12
PB13
PB14
PB15
PA08
PA09
PB11
PB10
PA17
PA18
Shared Functionality
GND
VCC
Function Shared Functionality
ID signal from extension board
GND
AIN[18]
AIN[19]
GPIO
GPIO
TC4/WO[0]
TC4/WO[1]
EXTINT[14]
GPIO
SERCOM2 PAD[0] I²C
SDA
SERCOM2 PAD[1] I²C
SCL
SERCOM4 PAD[1] UART
RX
3
SERCOM4 PAD[0] UART
TX
4
SERCOM1 PAD[1] SPI SS
SERCOM1 PAD[2] SPI
MOSI
EXT1, EXT3, and EDBG
EXT1, EXT3, and EDBG
EXT3
EXT3
3
4
The SERCOM4 module is shared between EXT1, 2 and 3 UART's, but uses different pins on EXT1 and EXT2/3
The SERCOM4 module is shared between EXT1, 2 and 3 UART's, but uses different pins on EXT1 and EXT2/3
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Pin on EXT1
18. [SPI_MISO]
19. [SPI_SCK]
Device pin
PA16
PA19
20. [GND]
21. [VCC]
Table 4-3 Extension Header EXT3
Pin on EXT1
1. [ID] -
Device pin
2. [GND]
3. [ADC(+)]
4. [ADC(-)]
5. [GPIO1]
6. [GPIO2]
7. [PWM(+)]
8. [PWM(-)]
9. [IRQ/GPIO]
PA13
PA28
10. [SPI_SS_B/GPIO] PA27
11. [TWI_SDA] PA08
-
PA02
PA03
PB30
PA15
PA12
12. [TWI_SCL]
13. [USART_RX]
14. [USART_TX]
15. [SPI_SS_A]
16. [SPI_MOSI]
PA09
PB11
PB10
PB17
PB22
Function
SERCOM1 PAD[0] SPI
MISO
SERCOM1 PAD[3] SPI
SCK
Shared Functionality
GND
VCC
Function Shared Functionality
Communication line to ID chip on extension board
GND
AIN[8]
AIN[9]
5
GPIO
GPIO
TC2/WO[0]
TC2/WO[1]
EXTINT[8]
GPIO
SERCOM2 PAD[0] I²C
SDA
SERCOM2 PAD[1] I²C
SCL
SERCOM4 PAD[1] UART
RX
6
SERCOM4 PAD[0] UART
TX
7
SERCOM5 PAD[1] SPI SS
SERCOM5 PAD[2] SPI
MOSI
USB_ID
Onboard LED0
Onboard SW0
EXT1, EXT2, and EDBG
EXT1, EXT2, and EDBG
LIN TRX: ATA663231-RXD pin
LIN TRX: ATA663231-TXD pin
EDBG
5
6
7
PA03 can be used by USB ID or EXT3 PIN4 by changing the position of the jumper JS300 on J307.
The SERCOM4 module is shared between EXT1, 2 and 3 UART's, but uses different pins on EXT1 and EXT2/3.
The SERCOM4 module is shared between EXT1, 2 and 3 UART's, but uses different pins on EXT1 and EXT2/3.
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Pin on EXT1
17. [SPI_MISO]
18. [SPI_SCK]
19. [GND]
20. [VCC] -
-
Device pin
PB16
PB23
Function
-
-
SERCOM5 PAD[0] SPI
MISO
SERCOM5 PAD[3] SPI
SCK
NC
NC
NC
NC
NC
[VS_LIN]
NC
[GND]
NC
NC
NC
[GND]
[VCC]
Table 4-4 High Voltage (HV) Header
Pin on HV
NC
[GND]
NC
NC
[LIN_GND]
NC
[LIN]
Function
GND
LIN GND pin
LIN signal to/from ATA663231 LIN
TRX
LIN voltage supply (e.g. 12VDC)
GND
GND
VCC
-
-
-
-
-
-
-
-
-
-
-
-
-
Shared Functionality
EDBG and LIN TRX:
ATA663231-EN pin
EDBG
GND
VCC
-
-
-
-
-
-
-
Shared Functionality
4.2. Peripherals
4.2.1. Crystal
The SAMDA1 Xplained Pro kit contains one crystal that can be used as clock source for the SAMDA1 device. The crystal has a cut-strap next to it that can be used to measure the oscillator safety factor. This
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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 4-5 External 32.768kHz Crystals
PA00
Pin on SAMDA1
PA01
Function
XIN32
XOUT32
4.2.2. Mechanical Buttons
SAMDA1 Xplained Pro contains two mechanical buttons. One button is the RESET button connected to the SAMDA1 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 4-6 Mechanical Buttons
Pin on SAMDA1
RESETN
PA15
Function
RESET
SW0
4.2.3. LED
There is one yellow LED available on the SAMDA1 Xplained Pro board that can be turned on and off. The
LEDcan be activated by driving the connected I/O line to GND.
Table 4-7 External 32.768kHz Crystals
Pin on SAMDA1
PB30
Function
Yellow LED0
4.2.4. USB
The SAMDA1 Xplained Pro has a micro USB receptacle for use with the SAMDA1 USB module. To be able to detect when a USB cable is connected, a GPIO is used to detect the VBUS voltage on the connector. The USB ID line is used to detect if a host mode cable is connected and will automatically switch on the power to the USB connector. The I/O connected to USB ID can be used to read the status of the line or manually override the voltage output. For other modes on the USB ID lines, refer to the USB organization specifications.
Table 4-8 USB Connections
Pin on SAMDA1
PA14
PA03
PA24
PA25
Function
VBUS Detection
USB ID
USB D-
USB D+
4.2.5. LIN Transceiver
SAMDA1 Xplained Pro includes an on-board LIN transceiver device (ATA663231FAQW). This device serves as a system-base chip (SBC) in the sense that it consists of a LIN TRX and a built-in voltage regulator which can regulate supply input voltage VS_LIN from 12V to 3.3V and can support up to 85mA
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load current. VREG output can also be used to supply VCC to SAMDA1 MCU and extention boards provided that the total current consumption does not exceed the maximum ATA663231FAQW current output limit (85mA). To support a larger current demand, provided on-board independent VREG
(Imax=0.7A) is available.
LIN TRX section is integrated with SAMDA1 MCU such that SAMDA1 Xplained Pro kit can be configured as either a LIN slave or a LIN master node.
Transceiver’s LIN IOs: LIN, VS_LIN, LIN_GND, are connected directly to HV Header (J203) for in-system connection with external LIN nodes.
4.3. Embedded Debugger Implementation
SAMDA1 Xplained Pro contains an Embedded Debugger (EDBG) that can be used to program and debug the SAMDA1J16A using Serial Wire Debug (SWD). 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 SAMDA1 GPIOs. Atmel Studio can be used as a front-end for the Embedded Debugger.
4.3.1. Serial Wire Debug
The Serial Wire Debug (SWD) uses two pins and a reset line to communicate with the target. For further information on how to use the programming and debugging capabilities of the EDBG, see section
on page 6.
Table 4-9 SWD Connections
Pin on SAMDA1
PA30
PA31
RESETN
Function
SWD clock
SWD data
Target Reset
4.3.2. Virtual COM Port
The Embedded Debugger acts as a Virtual Com Port gateway by using one of the SAMDA1J16A UARTs.
For further information on how to use the Virtual COM port see section Embedded Debugger on page 6.
Table 4-10 Virtual COM Port Connections
Pin on SAMDA1
PA22
PA23
Function
SERCOM3 PAD[0] UART TXD (SAMDA1 TX line)
SERCOM3 PAD[1] UART RXD (SAMDA1 RX line)
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 SAMDA1 to the host PC. For further
information on how to use the DGI interface see section Embedded Debugger on page 6.
Table 4-11 DGI Interface Connections when using SPI
Pin on SAMDA1
PB31
PB16
Function
SERCOM5 PAD[1] SPI SS (Slave select) (SAMDA1 is Master)
SERCOM5 PAD[0] SPI MISO (Master In, Slave Out)
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Pin on SAMDA1
PB22
PB23
Function
SERCOM5 PAD[2] SPI MOSI (Master Out, Slave in)
SERCOM5 PAD[3] SPI SCK (Clock Out)
Table 4-12 DGI Interface Connections when using I²C
Pin on SAMDA1
PA08
PA09
Function
SERCOM2 PAD[0] SDA (Data line)
SERCOM2 PAD[1] SCL (Clock line)
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5. Hardware Revision History and Known Issues
5.1. Identifying Product ID and Revision
The revision and product identifier of Xplained Pro boards can be found in two ways, through Atmel
Studio or by looking at the sticker on the bottom side of the PCB.
By connecting a 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 (four digit) followed by the two bit revision. Information about connected Xplained Pro extension boards will also appear in the Atmel Kits 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 kit identifier for SAMDA1 Xplained Pro is 2379.
5.2. Revision 2
Revision 2 of SAMDA1 Xplained Pro (A09-2379/2) is the initial released version.
5.3. EC/FCC Certification
SAMDA1 Xplained Pro evaluation PCB has been tested to certify for FCC compliance in USA/Canada
(i.e. FCC Verification Part 15B) and EC in the EU (i.e. EN55022, EN55024 and AOC certificate).
Note: In conjunction with the EC and FCC tests, SAMDA1 Xplained Pro was subjected to ESD testing.
Upon ESD testing SAMDA1 Xplained Pro was restarted and resumed its normal operating condition.
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6. Document Revision History
Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document.
Revision No.
9400A-SAM-09/15
History
Initial document release
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7. 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.
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Key Features
- On-board Embedded Debugger
- Easy access to SAMDA1J16A features
- Supports Atmel Studio IDE
- Provides example code
- Includes extension kits for extra peripherals