Atmel EDBG User Manual

Programmers and Debuggers

EDBG

USER GUIDE

Description

The Atmel® Embedded Debugger (EDBG) is an onboard debugger for
integration into development kits with Atmel MCUs. In addition to
programming and debugging support through Atmel Studio, the EDBG offers
data streaming capabilities between the host computer and the target MCU.

Atmel-42096C-EDBG_User Guide-10/2016

Table of Contents

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

1. Overview....................................................................................................................3

1.1. Features....................................................................................................................................... 3

2. Programming and Debugging....................................................................................4

3. Virtual COM Port........................................................................................................5

4. Data Gateway Interface.............................................................................................6

4.1. SPI Interface.................................................................................................................................6

4.2. USART Interface.......................................................................................................................... 6

4.3. I2C Interface................................................................................................................................. 6

4.3.1. Information Interface......................................................................................................7

4.4. GPIO Interface..............................................................................................................................8

4.5. Timestamp Module.......................................................................................................................8

5. Technical Overview....................................................................................................9

5.1. Pin Usage.....................................................................................................................................9

5.2. Power Consumption..................................................................................................................... 9

5.3. LED Control..................................................................................................................................9

6. Document Revision History..................................................................................... 10

7. Firmware Release History........................................................................................11

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1. Overview

The Atmel Embedded Debugger (EDBG) is an onboard debugger for kits with Atmel devices.

EDBG enables the user to debug the target device without an external debugger. EDBG also brings
additional features with a Data Gateway Interface and a Virtual COM Port for streaming of data to a host
PC. The Atmel EDBG will enumerate as a composite USB device with separate interfaces for each
function.

The Atmel EDBG is embedded on all Xplained Pro evaluation kits. All functionality of the Atmel EDBG is
not necessarily available on all kits - the EDBG is factory configured depending on the specific kit
capabilities. The configuration is read by Atmel Studio to present the correct capabilities and simplify the
user interface. Supported extension boards connected to the kit will be detected by the EDBG and their
features are reported to Atmel Studio.

1.1. Features

• On-board programming and debugging through SWD, JTAG, and PDI

• Virtual COM Port interface to target via UART

• Data Gateway Interface (DGI) for data streaming between target MCU and PC

• SPI, USART, and I2C interfaces available

• GPIOs for accurate status indication

• Extension board identification

• Indication of power and status through LEDs

• Sleep mode to minimize power consumption

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2. Programming and Debugging

The Atmel EDBG has the ability to program and debug Atmel AVR® and Atmel ARM® Cortex®-M core
based microcontrollers. The following interfaces are supported:

• Atmel ARM Cortex-M programming and debug interfaces

– Serial Wire Debug (SWD)

• Atmel megaAVR® programming and debug interfaces

– JTAG

• Atmel AVR XMEGA® programming and debug interfaces

– Program and Debug Interface (PDI)

Refer to the specific kit's user guide for details on connecting the interface.

Atmel EDBG [USER GUIDE]

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