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AVR 8-bit Microcontrollers

AT06621: Getting Started with AtmelATmega324PB

APPLICATION NOTE

Description

This application note is for getting started with the Atmel ATmega324PBAVR based microcontroller.

Features

Getting started with the ATmega324PB microcontroller and tools Getting started with Atmel ATmega324PB Xplained Pro Kit and Atmel

Studio 7

This application note contains a list of all tools required to start usingATmega324PB and provides references for additional information.

Atmel-42626A-Getting-Started-with-Atmel-ATmega324PB_AT06621_Application Note-03/2016

Table of Contents

Description.......................................................................................................................1

Features.......................................................................................................................... 1

1. Getting Started with Atmel ATmega324PB................................................................31.1. Key Features................................................................................................................................ 31.2. Device Related Website Links......................................................................................................31.3. ATmega324PB Xplained Pro Kit...................................................................................................51.4. Atmel Studio................................................................................................................................. 7

1.4.1. Atmel Studio Webpage ................................................................................................. 71.4.2. Atmel Studio Microsite................................................................................................... 7

1.5. Connecting the ATmega324PB Xplained Pro kit..........................................................................71.5.1. Auto Board Identification of Xplained Pro Kit ................................................................81.5.2. Connect the ATmega324PB Xplained Pro UART to the EDBG COM Port....................9

2. Creating an Example Application in Atmel Studio................................................... 10

3. Whats next?............................................................................................................ 13

4. Revision History.......................................................................................................14

Atmel AT06621: Getting Started with Atmel ATmega324PB [APPLICATION NOTE]Atmel-42626A-Getting-Started-with-Atmel-ATmega324PB_AT06621_Application Note-03/2016

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1. Getting Started with Atmel ATmega324PB

1.1. Key Features AVR (Harvard) architecture Single level pipelining In-system reprogrammable flash memory Separate EEPROM section available Optional boot code section with independent lock bits 20MIPS @ 20MHz Most single clock cycle execution Low-power microcontroller with various sleep modes High code density (advanced RISC Instruction Set) On-chip hardware multiplier Short interrupt latency four clock cycles Factory calibrated internal RC oscillator Security with fuses and lock bits Atmel QTouch Library support Compatibility between devices (portability) Peripheral touch controller Clock Failure Detection (CFD)

Note: For more information about ATmega324PB, refer to the device datasheet.

1.2. Device Related Website LinksThe ATmega324PB product webpage is available at:

http://www.atmel.com/devices/ATMEGA324PB.aspx


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http://www.atmel.com/devices/ATMEGA324PB.aspx

Figure 1-1.Device Webpage

The product webpage has five tabs that provide specific information related to the device.

The Overview tab provides the basic information related to the device such as Key Parameters,Datasheet, link to buy the device, etc.http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=overview

The Parameters tab provides the details of various configuration parameters for the device.


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http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=overview

http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=parameters The Documents tab provides all the related documents such as datasheet and application notes.

http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=documents

The Datasheet section contains two types of datasheets:Preliminary / Complete version includes all peripheral descriptions and electricalcharacteristics.

Preliminary Summary / Summary version includes ordering information, pin out, andpackaging information.

The Application Notes section has the device related Application Notes such as PeripheralUsage, Getting Started, Hardware design considerations, etc. and its associated firmware (ifavailable).

The Applications tab provides the recommended application areas (not limited to) for this device.http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=applications

The Tools tab, all the related tools such as IDE, Programmer, Debugger, Evaluation Kits, BSDLfiles are listed. This tab features the link to ATmega324PB Xplained Pro kits webpage.http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=tools

1.3. ATmega324PB Xplained Pro KitThe details about ATmega324PB Xplained Pro Kit is available in the following link.

http://www.atmel.com/tools/ATMEGA324PB-XPRO.aspx

Device Ordering Information is available in the bottom section of the page.


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http://www.atmel.com/devices/ATMEGA324PB.aspx?tab=parametershttp://www.atmel.com/devices/ATMEGA324PB.aspx?tab=documentshttp://www.atmel.com/devices/ATMEGA324PB.aspx?tab=applicationshttp://www.atmel.com/devices/ATMEGA324PB.aspx?tab=toolshttp://www.atmel.com/tools/ATMEGA324PB-XPRO.aspx

Figure 1-2.ATmega324PB Xplained Pro Webpage

Documents tab displays the kit related documents such as schematics and user guides.

http://www.atmel.com/tools/ATMEGA324PB-XPRO.aspx?tab=documents


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http://www.atmel.com/tools/ATMEGA324PB-XPRO.aspx?tab=documents

Note: For detailed information about the kit such as headers and connections, refer to ATmega324PBXplained Pro User Guide.

1.4. Atmel Studio

1.4.1. Atmel Studio WebpageThe Atmel Studio installer (free IDE) is available at:

http://www.atmel.com/tools/ATMELSTUDIO.aspx

1.4.2. Atmel Studio MicrositeTo learn more about Atmel Studio, refer to the following microsite:

http://www.atmel.com/microsite/atmel-studio/Figure 1-3.Atmel Studio Microsite Webpage

In the Videos tab the getting started videos such as creating a new C (GCC) project, debugging AVRapplications, debugging ARM applications, etc. are available.

http://www.atmel.com/Microsite/atmel-studio/videos.aspx

1.5. Connecting the ATmega324PB Xplained Pro kitThis section helps the user to connect the ATmega324PB Xplained Pro with the Atmel Studio 7.

1. Download and install Atmel Studio 7 or later versions.2. Launch the Atmel Studio.3. Connect the ATmega324PB Xplained Pro to the USB port.It will be visible in the Atmel Studio.


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http://www.atmel.com/tools/ATMELSTUDIO.aspxhttp://www.atmel.com/microsite/atmel-studio/http://www.atmel.com/Microsite/atmel-studio/videos.aspxhttp://www.atmel.com/tools/ATMELSTUDIO.aspx

1.5.1. Auto Board Identification of Xplained Pro Kit When the ATmega324PB Xplained Pro kit is connected to the PC, the Windows Task bar will pop-

up a message, as displayed in the following screenshot.Figure 1-4.ATmega324PB Xplained Pro Driver Installation

If the driver installation is successful, EDBG will be listed in the Device Manager, as displayed in thefollowing screenshot.Figure 1-5.Successful EDBG Driver Installation

Open Atmel Studio. Go to, View > Available Atmel Tools. The EDBG should be listed in the tools as EDBG and the

tool status should display as Connected. This indicates that the tool is communicating as expectedwith the Atmel Studio.

Figure 1-6.EDBG under Available Atmel Tools


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1.5.2. Connect the ATmega324PB Xplained Pro UART to the EDBG COM Port1. Connect the EDBG USB to the PC.2. Use the Device Manager to find the COM port number.3. Default COM port settings are 9600 baud N 8 1. The COM port settings can be changed by using

the Device Manager.


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2. Creating an Example Application in Atmel Studio1. After connecting the board, to create a new project in Atmel Studio, go to File > New > Project.

Figure 2-1.Creating New Project in Atmel Studio

2. In the New Project wizard displayed, select the GCC C executable Project template, name theproject, and click OK to get the Device Selection wizard.Figure 2-2.New Project Wizard

3. The Device Selection wizard appears as shown in the following image. Select the ATmega324PBdevice from megaAVR device family and click OK.Figure 2-3.Device Selection Wizard

4. The new project and the main.c file will be created as follows.


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Figure 2-4.Project Window

5. Add the following code snippet (LED control using push button) in the main.c file.int main(void){ /* enable the pull-up function */ MCUCR &= ~(1

In the example code demonstrated Button connected to pin PC6 is configured as input withPull-up enabled. Pin PC7 is connected to LED0 and configured as output.

Here the LED0 is controlled based on the Button status As long the button is not pressed, the LED0 will not glow and on pressing the button the LED0

will glow7. To debug the project, go to Project > Properties > Tool > Selected Debugger/Programmer and

select the Tool as EDBG and Interface as JTAG.Figure 2-5.Tool and Interface Settings

8. To program and execute the application there are two options: Start a debug session on the board, where the user will be able to program and debug Program the generated .hex file into the controller and execute the application

Choose one of these options in Atmel Studio as shown in the following screen capture.Figure 2-6.Start without Debugging

Figure 2-7.Start Debugging and Break


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3. Whats next? Atmel Studio videos

http://www.atmel.com/Microsite/atmel-studio/videos.aspx Atmel Studio online help

http://www.atmel.com/webdoc/atmelstudio/ Atmel Studio offline help (After installing Atmel Studio)

Open Atmel Studio, Help > View Help (Ctrl+F1) > Atmel Studio ASF (Atmel Software framework) Getting Started and ASF Reference manual

http://www.atmel.com/tools/AVRSOFTWAREFRAMEWORK.aspx?tab=documents ASF online documentation

http://asf.atmel.com/docs/latest/ Technical documentation for various products

http://www.atmel.com/webdoc/ Atmel Gallery

https://gallery.atmel.com/ Production Selection Guide

Atmel MCU Selector on http://www.atmel.com/ Ordering Samples and Buying evaluation board and kits:

http://www.atmel.com/. Go to Buy > Atmel store Technical Documentation

http://www.atmel.com/design-support/documentation/default.aspx Knowledge Base and Technical Support/Design Support

http://www.atmel.com/design-support/ Collaborative workspace

http://spaces.atmel.com AVR Freaks community

http://www.avrfreaks.net/


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http://www.atmel.com/Microsite/atmel-studio/videos.aspxhttp://www.atmel.com/webdoc/atmelstudio/http://www.atmel.com/tools/AVRSOFTWAREFRAMEWORK.aspx?tab=documentshttp://asf.atmel.com/docs/latest/http://www.atmel.com/webdoc/https://gallery.atmel.com/http://www.atmel.com/http://www.atmel.com/http://www.atmel.com/design-support/documentation/default.aspxhttp://www.atmel.com/design-support/http://spaces.atmel.comhttp://www.avrfreaks.net/

4. Revision HistoryDoc. Rev. Date Comments

42626A 03/2016 Initial document release


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2016 Atmel Corporation. / Rev.: Atmel-42626A-Getting-Started-with-Atmel-ATmega324PB_AT06621_Application Note-03/2016

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DescriptionFeaturesTable of Contents1.Getting Started with Atmel ATmega324PB1.1.Key Features1.2.Device Related Website Links1.3.ATmega324PB Xplained Pro Kit1.4.Atmel Studio1.4.1.Atmel Studio Webpage1.4.2.Atmel Studio Microsite

1.5.Connecting the ATmega324PB Xplained Pro kit1.5.1.Auto Board Identification of Xplained Pro Kit1.5.2.Connect the ATmega324PB Xplained Pro UART to the EDBG COM Port

2.Creating an Example Application in Atmel Studio3.Whats next?4.Revision History