Atmel ATmega168 User Manual

42250A-MCU-02/2014
USER GUIDE
ATmega168 Xplained Mini User Guide
Introduction
This user guide describes how to get started with the Atmel
®
ATmega168
Xplained Mini board.
The ATmega168 Xplained Mini evalutation kit is a hardware platform to evaluate
the Atmel ATmega168 microcontroller. The evaluation kit comes with a fully
integrated debugger that provides seamless integration with Atmel Studio 6.2
(and later version). The kit provides access to the features of the ATmega168
enabling easy integration of the device in a custom design

Atmel ATmega168 Specifications

General

Architecture	AVR
CPU	8-bit AVR
Flash Memory	16 KB
SRAM	1 KB
EEPROM	512 Bytes
Operating Voltage	1.8 - 5.5 V
Digital I/O Pins	23
PWM Channels	6
ADC Channels	8
Timers	3
Clock Speed	20 MHz
Category	Microcontroller
Core	AVR
Bit Size	8-bit
Communication Interfaces	USART, SPI, I2C
Package	TQFP
Manufacturer	Microchip Technology

Summary

Getting Started

Features

Overview of the ATmega168 Xplained Mini evaluation board's capabilities.

Design Documentation and Related Links

Links to relevant documents and software for the evaluation board.

Board Assembly

Information on how to assemble the Xplained Mini board for various uses.

Connecting the Kit

Instructions on how to connect the evaluation board.

Atmel Studio

Guide to connecting the ATmega168 Xplained Mini to Atmel Studio.

Connect the ATmega168 UART to the mEBDG COM Port

Steps to connect the ATmega168 UART to the PC via mEBDG COM port.

Programming and Debugging

Guidance on how to program and debug the Xplained Mini board.

Programming the Target Using mEDBG

Instructions for programming the ATmega168 via the SPI bus using mEDBG.

Debugging the Target Using mEDBG

Steps for debugging the ATmega168 using the onboard mEDBG debugger.

Programming the Target Using an External Programmer

How to program the ATmega168 using external AVR programmers like JTAGICE.

Programming the ATmega32U4 Using an External Programmer

Instructions for programming the ATmega32U4 with external programmers.

Bootloader

Guide on how to use the bootloader to program the ATmega32U4.

How to Install the "Bootloader PC tool"

Steps to download and install the FLIP tool for bootloader programming.

Available Example Code

Information on the demo program and source code availability.

Hardware User Guide

Board Overview

Visual overview of the ATmega168 Xplained Mini board and its components.

Clock Distribution

Details on the clock sources and distribution for the ATmega32U4 and ATmega168.

Headers and Connectors

Description of the various headers and connectors on the board.

JTAG (J100)

Details about the JTAG programming header (J100).

USB (J101)

Information on the USB 2.0 connector (J101) for PC connection.

USART (J102)

Details on the UART signals available on the J102 connector.

ATmega168 Digital I/O (J200 and J201)

Mapping of ATmega168 digital I/O pins to connectors J200 and J201.

ATmega168 Analogue I/O (J203)

Details on the ATmega168 analogue I/O pins accessible via J203.

Power (J202)

Information regarding VCC and RESET signals available on J202.

ATmega168 ISP (J204)

Details on the ISP connector (J204) for programming and SPI connection.

Board GUI

Overview of the Graphical User Interface elements on the board.

LEDS

Description of the LEDs (D100, D200) and their functions.

Button

Information about the user-accessible button (SW200) and its function.

Factory Programmed Data

Details about the preprogrammed demo program and mEDBG firmware.

Document Revision History