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ATmega4809 Xplained Pro
ATmega4809 Xplained Pro
Preface
The ATmega4809 Xplained Pro evaluation kit is a hardware platform to evaluate the ATmega4809 microcontroller.
Supported by the integrated development platform Microchip Studio, the kit provides easy access to the features of
the ATmega4809 and explains how to integrate the device into a custom design.
The Xplained Pro MCU series evaluation kits include an on-board Embedded Debugger (EDBG). No external tools
are necessary to program or debug the ATmega4809.
The Xplained Pro extension kits offer additional peripherals to extend the features of the board and ease the
development of custom designs.
User Guide
DS50002716C-page 1
©
2020 Microchip Technology Inc.
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Summary of Contents for Microchip Technology ATmega4809 Xplained Pro
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Page 1: Preface
ATmega4809 Xplained Pro Preface The ATmega4809 Xplained Pro evaluation kit is a hardware platform to evaluate the ATmega4809 microcontroller. Supported by the integrated development platform Microchip Studio, the kit provides easy access to the features of the ATmega4809 and explains how to integrate the device into a custom design. -
Page 2: Table Of Contents
ATmega4809 Xplained Pro Table of Contents Preface................................1 Introduction............................. 4 1.1. Features............................4 1.2. Kit Overview..........................4 Getting Started............................6 2.1. Xplained Pro Quick Start......................6 2.2. Design Documentation and Relevant Links................. 6 Xplained Pro............................7 3.1. Embedded Debugger........................7 3.2. - Page 3 ATmega4809 Xplained Pro Document Revision History........................29 The Microchip Website..........................30 Product Change Notification Service......................30 Customer Support............................30 Microchip Devices Code Protection Feature....................30 Legal Notice..............................31 Trademarks..............................31 Quality Management System........................32 Worldwide Sales and Service........................33 User Guide DS50002716C-page 3 ©...
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Page 4: Introduction
USB powered Kit Overview The ATmega4809 Xplained Pro evaluation kit is a hardware platform to evaluate the ATmega4809. The kit offers a set of features that enables the ATmega4809 users to get started with the ATmega4809 peripherals right away and to get an understanding of how to integrate the device into their own design. - Page 5 ATmega4809 Xplained Pro Introduction Figure 1-1. ATmega4809 Xplained Pro Evaluation Kit Overview CURRENT MEASUREMENT SW0 USER BUTTON HEADER RESET BUTTON DEBUG USB USER LED0 POWER HEADER TARGET VOLTAGE SELECT HEADER DEBUG ® FOR EXTERNAL DEBUGGER UDFN8 CryptoAuthentication™ DEVICE FOOTPRINT EXTENSION 1 HEADER 32.768 kHz Crystal...
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Page 6: Getting Started
The ATmega4809 device is programmed and debugged by the on-board embedded debugger and, therefore, no external programmer or debugger tool is required. Design Documentation and Relevant Links The following list contains links to the most relevant documents and software for the ATmega4809 Xplained Pro. • Xplained Products - Xplained Evaluation Kits are a series of easy-to-use evaluation kits for Microchip microcontrollers and other Microchip products. -
Page 7: Xplained Pro
DGI. The EDBG controls two LEDs on the ATmega4809 Xplained Pro: a power LED and a status LED. The following table provides details on how the LEDs are controlled in different operation modes. -
Page 8: Power Sources
3600 Maximum current [mA] uint16_t Power Sources The ATmega4809 Xplained Pro kit can be powered by several power sources, as listed in the following table. Table 3-3. Power Sources for ATmega4809 Xplained Pro Power Source Voltage Requirements Current Requirements Connector Marking External power 5V ±2% (±100 mV) for USB... -
Page 9: Xplained Pro Power Header
Xplained Pro Power Header The power header can be used to connect external power to the ATmega4809 Xplained Pro kit. The kit automatically detects and switches to an external power source, if supplied. The power header can also be used to supply power to external peripherals or extension boards. - Page 10 ATmega4809 Xplained Pro Xplained Pro Table 3-5. Xplained Pro Power Header Pin Number Pin Name Description VEXT_P5V0 External 5V input pin Ground pin Unregulated 5V pin (an output, derived from one of the input VCC_P5V0 sources) Regulated 3.3V pin (an output, used as the main power...
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Page 11: Hardware User Guide
The following sections describe the implementation of the relevant connectors, headers, and peripherals on ATmega4809 Xplained Pro, and their connection to ATmega4809. The tables of connections in the sections also describe which signals are shared between the connectors, headers, and peripherals. The figure below shows all available headers, connectors, jumpers, and peripherals on ATmega4809 Xplained Pro. -
Page 12: Connectors
ATmega4809, the on-board peripherals, and the connectors. As ATmega4809 Xplained Pro can be powered by 5.0V, care must be taken not to connect any Xplained CAUTION Pro extensions that do not support this voltage, doing so may result in permanent damage. - Page 13 ATmega4809 Xplained Pro Hardware User Guide Table 4-1. Extension Header EXT1 EXT1 Pin ATmega4809 Pin Function Shared Functionality 1 [ID] — — Communication line to the ID chip on an extension board 2 [GND] — — Ground 3 [ADC(+)] ADC0 AIN2 —...
- Page 14 ATmega4809 Xplained Pro Hardware User Guide ...continued EXT2 Pin ATmega4809 Pin Function Shared Functionality 7 [PWM(+)] TCA0 WO4 DGI GPIO2 8 [PWM(-)] TCA0 WO5 GPIO3, LED0 9 [IRQ/GPIO] GPIO GPIO0, 10 [SPI_SS_B/GPIO] PB3 GPIO DGI GPIO1 ™ 11 [TWI_SDA] TWI0 SDA...
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Page 15: Mikrobus ™ Socket
— Power for extension board ™ 4.2.2 mikroBUS Socket ATmega4809 Xplained Pro has one mikroBUS socket that can be used with MikroElektronika click modules. The table below shows the signals connected to the mikroBUS socket. ™ Table 4-4. mikroBUS Socket ™... -
Page 16: Avr ® Debugger Connector
More information about oscillator allowance and safety factor is available in the AVR4100 application note. There is a 7 pF, 32.768 kHz crystal in a 3.2 mm by 1.5 mm package mounted on ATmega4809 Xplained Pro. Table 4-6. External 32.768 kHz Crystal ATmega4809 Pin Function... -
Page 17: Led
DGI GPIO0 SW1/RESET EXT2, DEBUG, EDBG 4.3.3 One yellow LED available on the ATmega4809 Xplained Pro board can be turned ON and OFF. Drive the connected I/O line to GND to activate the LED. Table 4-8. LED Connection ATmega4809 Pin Function... -
Page 18: Embedded Debugger Implementation
Hardware User Guide Embedded Debugger Implementation ATmega4809 Xplained Pro contains an Embedded Debugger (EDBG) that can be used to program and debug the ATmega4809 using the UPDI interface. The Embedded Debugger also includes a Virtual Com port interface over UART, a Data Gateway Interface over SPI, and I C, and it includes four of the ATmega4809 GPIOs. -
Page 19: Kit Modifications
LED0 Kit Modifications ATmega4809 Xplained Pro has several components that can be used to disconnect I/O pins of the ATmega4809 from connectors and on-board ICs, and to disconnect power signals. The table and figure below show components to modify connections to the EDBG and power supplies. - Page 20 ATmega4809 Xplained Pro Hardware User Guide ...continued Designato Value From Comment R520 0Ω EDBG DGI SPI SS PF3 GPIO EDBG DGI SPI interface R521 0Ω EDBG DGI SPI SCK PA6 SPI0 SCK R522 0Ω EDBG DGI SPI MOSI PA4 SPI0 MOSI R523 330Ω...
- Page 21 ATmega4809 Xplained Pro Hardware User Guide Figure 4-3. Assembly Drawing Bottom User Guide DS50002716C-page 21 © 2020 Microchip Technology Inc.
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Page 22: Operation At Other Voltages
4.5.1 Operation at Other Voltages The ATmega4809 Xplained Pro board is operated at 3.3V or 5.0V by default but it also has the possibility of running at other voltages from an external supply. All signals between the EDBG and the ATmega4809 are level-shifted through level shifters compatible with supply voltages from 1.65V to 5.5V. -
Page 23: Appendix
GCC. Programming and ™ debugging of ATmega4809 Xplained Pro is supported in IAR Embedded Workbench for AVR using the Atmel-ICE interface. Some initial settings must be set up in the project to get the programming and debugging to work. - Page 24 ATmega4809 Xplained Pro Appendix Figure 5-2. Select Debugger Figure 5-3. Configure Interface User Guide DS50002716C-page 24 © 2020 Microchip Technology Inc.
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Page 25: Hardware Revision History And Known Issues
Socket and Kit Power Supply When the ATmega4809 Xplained Pro board is powered from an off state, the on-board EDBG tries to read ID chips from all the Xplained Pro extension connectors to determine the maximum allowed voltage that can be applied. The EDBG uses this information to decide if it can safely open the power switch shown in the block diagram below. - Page 26 WARNING electrical specifications of the connected Xplained Pro extensions match the voltage configuration of the ATmega4809 Xplained Pro (e.g., do not connect an Xplained Pro extension that does not support 5V to an ATmega4809 Xplained Pro in a 5V configuration).
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Page 27: Revision 5
Instead of the crystal documented in 4.3.1 Crystals, the 32.768 kHz crystal on ATmega4809 Xplained Pro revision 4 is a Kyocera Corporation ST3215SB32768E0HPWBB 9 pF crystal. This crystal configuration is not optimally matched and has a capacitance mismatch that causes the oscillation frequency to be off by ~30 ppm. - Page 28 ATmega4809 Xplained Pro Hardware Revision History and Known Issues Related Links 4.2.3 AVR Debugger Connector Table 4-12 4.3.1 Crystals User Guide DS50002716C-page 28 © 2020 Microchip Technology Inc.
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Page 29: Document Revision History
ATmega4809 Xplained Pro Document Revision History Document Revision History Doc. Rev. Date Comment 12/2020 Corrected the function description of PD6 in Table 4-4. 06/2018 Updated for kit revision 6. 02/2018 Initial document release. User Guide DS50002716C-page 29 © 2020 Microchip Technology Inc. -
Page 30: The Microchip Website
ATmega4809 Xplained Pro The Microchip Website Microchip provides online support via our website at www.microchip.com/. This website is used to make files and information easily available to customers. Some of the content available includes: • Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software •... -
Page 31: Legal Notice
The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. -
Page 32: Quality Management System
ATmega4809 Xplained Pro Quality Management System For information regarding Microchip’s Quality Management Systems, please visit www.microchip.com/quality. User Guide DS50002716C-page 32 © 2020 Microchip Technology Inc. -
Page 33: Worldwide Sales And Service
New York, NY Tel: 46-31-704-60-40 Tel: 631-435-6000 Sweden - Stockholm San Jose, CA Tel: 46-8-5090-4654 Tel: 408-735-9110 UK - Wokingham Tel: 408-436-4270 Tel: 44-118-921-5800 Canada - Toronto Fax: 44-118-921-5820 Tel: 905-695-1980 Fax: 905-695-2078 User Guide DS50002716C-page 33 © 2020 Microchip Technology Inc.
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