# Getting Started with AT91 Microcontrollers 1.4

## Purpose

The Getting Started project will help new users get familiar with Atmel's AT91 family of microcontrollers. This basic application shows the startup sequence of a chip and how to use its core peripherals.

## Hardware Requirements

This package can be used with all Atmel evaluation kits.

## Description

The demonstration program makes two LEDs on the board blink at a fixed rate. This rate is generated by using a timer for the first LED; the second one uses a Wait function based on a 1 ms tick. The blinking can be stopped using two buttons (one for each LED).

## Usage

1. Build the program and download it inside the evaluation board. Please refer to the SAM-BA User Guide, the GNU-Based Software Development application note or to the IAR EWARM User Guide, depending on your chosen solution.
2. On the computer, open and configure a terminal application (e.g. HyperTerminal on Microsoft Windows) with these settings:

- 115200 bauds
- 8 bits of data
- No parity
- 1 stop bit
- No flow control

3. Start the application.
4. Two LEDs should start blinking on the board. In the terminal window, the following text should appear (values depend on the board and chip used):

> `-- Getting Started Project 1.4 --
> Board : AT91*****-**, Chip ID : 0x********`

5. Pressing button #1 should make the first LED stop & restart blinking; same for button #2 with the second LED.

###### Atmel Corporation ©2008